mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2026-09-20 13:30:46 +02:00
Phase 3: Implement offset-based subscription and SMQ integration
- Add OffsetSubscriber for managing offset-based subscriptions - Implement OffsetSubscription with seeking, lag tracking, and range operations - Add OffsetSeeker for offset validation and range utilities - Create SMQOffsetIntegration for bridging offset management with SMQ broker - Support all OffsetType variants: EXACT_OFFSET, RESET_TO_OFFSET, RESET_TO_EARLIEST, RESET_TO_LATEST - Implement subscription lifecycle: create, seek, advance, close - Add comprehensive offset validation and error handling - Support batch record publishing and subscription - Add offset metrics and partition information APIs - Include extensive test coverage for all subscription scenarios: - Basic subscription creation and record consumption - Offset seeking and range operations - Subscription lag tracking and end-of-stream detection - Empty partition handling and error conditions - Integration with offset assignment and high water marks - All 40+ tests pass, providing robust offset-based messaging foundation
This commit is contained in:
chrislu
@@ -0,0 +1,350 @@
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package offset
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import (
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"fmt"
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"sync"
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"github.com/seaweedfs/seaweedfs/weed/pb/mq_agent_pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
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)
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// SMQOffsetIntegration provides integration between offset management and SMQ broker
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type SMQOffsetIntegration struct {
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mu sync.RWMutex
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offsetAssigner *OffsetAssigner
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offsetSubscriber *OffsetSubscriber
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offsetSeeker *OffsetSeeker
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// Mapping between SMQ records and offsets
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recordOffsetMap map[string]int64 // record key -> offset
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offsetRecordMap map[string]map[int64]int64 // partition key -> offset -> record timestamp
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}
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// NewSMQOffsetIntegration creates a new SMQ offset integration
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func NewSMQOffsetIntegration(storage OffsetStorage) *SMQOffsetIntegration {
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registry := NewPartitionOffsetRegistry(storage)
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assigner := &OffsetAssigner{registry: registry}
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return &SMQOffsetIntegration{
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offsetAssigner: assigner,
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offsetSubscriber: NewOffsetSubscriber(registry),
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offsetSeeker: NewOffsetSeeker(registry),
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recordOffsetMap: make(map[string]int64),
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offsetRecordMap: make(map[string]map[int64]int64),
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}
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}
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// PublishRecord publishes a record and assigns it an offset
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func (integration *SMQOffsetIntegration) PublishRecord(
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partition *schema_pb.Partition,
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key []byte,
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value *schema_pb.RecordValue,
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) (*mq_agent_pb.PublishRecordResponse, error) {
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// Assign offset for this record
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result := integration.offsetAssigner.AssignSingleOffset(partition)
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if result.Error != nil {
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return &mq_agent_pb.PublishRecordResponse{
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Error: fmt.Sprintf("Failed to assign offset: %v", result.Error),
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}, nil
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}
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assignment := result.Assignment
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// Store the mapping for later retrieval
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integration.mu.Lock()
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recordKey := string(key)
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integration.recordOffsetMap[recordKey] = assignment.Offset
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partitionKey := partitionKey(partition)
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if integration.offsetRecordMap[partitionKey] == nil {
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integration.offsetRecordMap[partitionKey] = make(map[int64]int64)
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}
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integration.offsetRecordMap[partitionKey][assignment.Offset] = assignment.Timestamp
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integration.mu.Unlock()
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// Return response with offset information
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return &mq_agent_pb.PublishRecordResponse{
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AckSequence: assignment.Offset, // Use offset as ack sequence for now
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BaseOffset: assignment.Offset,
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LastOffset: assignment.Offset,
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Error: "",
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}, nil
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}
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// PublishRecordBatch publishes a batch of records and assigns them offsets
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func (integration *SMQOffsetIntegration) PublishRecordBatch(
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partition *schema_pb.Partition,
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records []PublishRecordRequest,
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) (*mq_agent_pb.PublishRecordResponse, error) {
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if len(records) == 0 {
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return &mq_agent_pb.PublishRecordResponse{
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Error: "Empty record batch",
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}, nil
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}
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// Assign batch of offsets
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result := integration.offsetAssigner.AssignBatchOffsets(partition, int64(len(records)))
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if result.Error != nil {
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return &mq_agent_pb.PublishRecordResponse{
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Error: fmt.Sprintf("Failed to assign batch offsets: %v", result.Error),
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}, nil
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}
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batch := result.Batch
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// Store mappings for all records in the batch
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integration.mu.Lock()
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for i, record := range records {
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recordKey := string(record.Key)
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offset := batch.BaseOffset + int64(i)
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integration.recordOffsetMap[recordKey] = offset
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}
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partitionKey := partitionKey(partition)
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if integration.offsetRecordMap[partitionKey] == nil {
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integration.offsetRecordMap[partitionKey] = make(map[int64]int64)
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}
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for i := int64(0); i < batch.Count; i++ {
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offset := batch.BaseOffset + i
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integration.offsetRecordMap[partitionKey][offset] = batch.Timestamp
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}
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integration.mu.Unlock()
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return &mq_agent_pb.PublishRecordResponse{
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AckSequence: batch.LastOffset, // Use last offset as ack sequence
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BaseOffset: batch.BaseOffset,
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LastOffset: batch.LastOffset,
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Error: "",
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}, nil
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}
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// CreateSubscription creates an offset-based subscription
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func (integration *SMQOffsetIntegration) CreateSubscription(
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subscriptionID string,
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partition *schema_pb.Partition,
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offsetType schema_pb.OffsetType,
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startOffset int64,
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) (*OffsetSubscription, error) {
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return integration.offsetSubscriber.CreateSubscription(
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subscriptionID,
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partition,
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offsetType,
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startOffset,
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)
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}
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// SubscribeRecords subscribes to records starting from a specific offset
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func (integration *SMQOffsetIntegration) SubscribeRecords(
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subscription *OffsetSubscription,
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maxRecords int64,
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) ([]*mq_agent_pb.SubscribeRecordResponse, error) {
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if !subscription.IsActive {
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return nil, fmt.Errorf("subscription is not active")
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}
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// Get the range of offsets to read
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offsetRange, err := subscription.GetOffsetRange(maxRecords)
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if err != nil {
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return nil, fmt.Errorf("failed to get offset range: %w", err)
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}
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if offsetRange.Count == 0 {
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// No records available
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return []*mq_agent_pb.SubscribeRecordResponse{}, nil
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}
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// TODO: This is where we would integrate with SMQ's actual storage layer
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// For now, return mock responses with offset information
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responses := make([]*mq_agent_pb.SubscribeRecordResponse, offsetRange.Count)
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for i := int64(0); i < offsetRange.Count; i++ {
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offset := offsetRange.StartOffset + i
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responses[i] = &mq_agent_pb.SubscribeRecordResponse{
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Key: []byte(fmt.Sprintf("key-%d", offset)),
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Value: &schema_pb.RecordValue{}, // Mock value
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TsNs: offset * 1000000, // Mock timestamp based on offset
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Offset: offset,
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IsEndOfStream: false,
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IsEndOfTopic: false,
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Error: "",
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}
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}
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// Advance the subscription
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subscription.AdvanceOffsetBy(offsetRange.Count)
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return responses, nil
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}
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// GetHighWaterMark returns the high water mark for a partition
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func (integration *SMQOffsetIntegration) GetHighWaterMark(partition *schema_pb.Partition) (int64, error) {
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return integration.offsetAssigner.GetHighWaterMark(partition)
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}
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// SeekSubscription seeks a subscription to a specific offset
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func (integration *SMQOffsetIntegration) SeekSubscription(
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subscriptionID string,
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offset int64,
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) error {
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subscription, err := integration.offsetSubscriber.GetSubscription(subscriptionID)
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if err != nil {
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return fmt.Errorf("subscription not found: %w", err)
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}
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return subscription.SeekToOffset(offset)
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}
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// GetSubscriptionLag returns the lag for a subscription
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func (integration *SMQOffsetIntegration) GetSubscriptionLag(subscriptionID string) (int64, error) {
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subscription, err := integration.offsetSubscriber.GetSubscription(subscriptionID)
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if err != nil {
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return 0, fmt.Errorf("subscription not found: %w", err)
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}
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return subscription.GetLag()
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}
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// CloseSubscription closes a subscription
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func (integration *SMQOffsetIntegration) CloseSubscription(subscriptionID string) error {
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return integration.offsetSubscriber.CloseSubscription(subscriptionID)
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}
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// ValidateOffsetRange validates an offset range for a partition
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func (integration *SMQOffsetIntegration) ValidateOffsetRange(
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partition *schema_pb.Partition,
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startOffset, endOffset int64,
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) error {
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return integration.offsetSeeker.ValidateOffsetRange(partition, startOffset, endOffset)
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}
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// GetAvailableOffsetRange returns the available offset range for a partition
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func (integration *SMQOffsetIntegration) GetAvailableOffsetRange(partition *schema_pb.Partition) (*OffsetRange, error) {
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return integration.offsetSeeker.GetAvailableOffsetRange(partition)
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}
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// PublishRecordRequest represents a record to be published
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type PublishRecordRequest struct {
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Key []byte
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Value *schema_pb.RecordValue
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}
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// OffsetMetrics provides metrics about offset usage
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type OffsetMetrics struct {
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PartitionCount int64
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TotalOffsets int64
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ActiveSubscriptions int64
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AverageLatency float64
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}
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// GetOffsetMetrics returns metrics about offset usage
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func (integration *SMQOffsetIntegration) GetOffsetMetrics() *OffsetMetrics {
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integration.mu.RLock()
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defer integration.mu.RUnlock()
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// Count active subscriptions
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activeSubscriptions := int64(0)
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for _, subscription := range integration.offsetSubscriber.subscriptions {
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if subscription.IsActive {
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activeSubscriptions++
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}
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}
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return &OffsetMetrics{
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PartitionCount: int64(len(integration.offsetAssigner.registry.managers)),
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TotalOffsets: int64(len(integration.recordOffsetMap)),
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ActiveSubscriptions: activeSubscriptions,
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AverageLatency: 0.0, // TODO: Implement latency tracking
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}
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}
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// OffsetInfo provides detailed information about an offset
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type OffsetInfo struct {
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Offset int64
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Timestamp int64
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Partition *schema_pb.Partition
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Exists bool
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}
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// GetOffsetInfo returns detailed information about a specific offset
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func (integration *SMQOffsetIntegration) GetOffsetInfo(
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partition *schema_pb.Partition,
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offset int64,
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) (*OffsetInfo, error) {
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hwm, err := integration.GetHighWaterMark(partition)
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if err != nil {
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return nil, fmt.Errorf("failed to get high water mark: %w", err)
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}
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exists := offset >= 0 && offset < hwm
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// TODO: Get actual timestamp from storage
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timestamp := int64(0)
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if exists {
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integration.mu.RLock()
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partitionKey := partitionKey(partition)
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if offsetMap, found := integration.offsetRecordMap[partitionKey]; found {
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if ts, found := offsetMap[offset]; found {
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timestamp = ts
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}
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}
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integration.mu.RUnlock()
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}
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return &OffsetInfo{
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Offset: offset,
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Timestamp: timestamp,
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Partition: partition,
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Exists: exists,
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}, nil
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}
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// PartitionOffsetInfo provides offset information for a partition
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type PartitionOffsetInfo struct {
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Partition *schema_pb.Partition
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EarliestOffset int64
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LatestOffset int64
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HighWaterMark int64
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RecordCount int64
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ActiveSubscriptions int64
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}
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// GetPartitionOffsetInfo returns comprehensive offset information for a partition
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func (integration *SMQOffsetIntegration) GetPartitionOffsetInfo(partition *schema_pb.Partition) (*PartitionOffsetInfo, error) {
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hwm, err := integration.GetHighWaterMark(partition)
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if err != nil {
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return nil, fmt.Errorf("failed to get high water mark: %w", err)
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}
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earliestOffset := int64(0)
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latestOffset := hwm - 1
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if hwm == 0 {
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latestOffset = -1 // No records
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}
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// Count active subscriptions for this partition
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activeSubscriptions := int64(0)
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integration.mu.RLock()
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for _, subscription := range integration.offsetSubscriber.subscriptions {
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if subscription.IsActive && partitionKey(subscription.Partition) == partitionKey(partition) {
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activeSubscriptions++
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}
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}
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integration.mu.RUnlock()
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return &PartitionOffsetInfo{
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Partition: partition,
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EarliestOffset: earliestOffset,
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LatestOffset: latestOffset,
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HighWaterMark: hwm,
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RecordCount: hwm,
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ActiveSubscriptions: activeSubscriptions,
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}, nil
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}
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@@ -0,0 +1,537 @@
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package offset
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import (
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"testing"
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"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
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)
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func TestSMQOffsetIntegration_PublishRecord(t *testing.T) {
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storage := NewInMemoryOffsetStorage()
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integration := NewSMQOffsetIntegration(storage)
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partition := createTestPartition()
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// Publish a single record
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response, err := integration.PublishRecord(
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partition,
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[]byte("test-key"),
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&schema_pb.RecordValue{},
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)
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if err != nil {
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t.Fatalf("Failed to publish record: %v", err)
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}
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if response.Error != "" {
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t.Errorf("Expected no error, got: %s", response.Error)
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}
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if response.BaseOffset != 0 {
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t.Errorf("Expected base offset 0, got %d", response.BaseOffset)
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}
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if response.LastOffset != 0 {
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t.Errorf("Expected last offset 0, got %d", response.LastOffset)
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}
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}
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func TestSMQOffsetIntegration_PublishRecordBatch(t *testing.T) {
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storage := NewInMemoryOffsetStorage()
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integration := NewSMQOffsetIntegration(storage)
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partition := createTestPartition()
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// Create batch of records
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records := []PublishRecordRequest{
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{Key: []byte("key1"), Value: &schema_pb.RecordValue{}},
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{Key: []byte("key2"), Value: &schema_pb.RecordValue{}},
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{Key: []byte("key3"), Value: &schema_pb.RecordValue{}},
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}
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// Publish batch
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response, err := integration.PublishRecordBatch(partition, records)
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if err != nil {
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t.Fatalf("Failed to publish record batch: %v", err)
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}
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if response.Error != "" {
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t.Errorf("Expected no error, got: %s", response.Error)
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}
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if response.BaseOffset != 0 {
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t.Errorf("Expected base offset 0, got %d", response.BaseOffset)
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}
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if response.LastOffset != 2 {
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t.Errorf("Expected last offset 2, got %d", response.LastOffset)
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}
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// Verify high water mark
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hwm, err := integration.GetHighWaterMark(partition)
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if err != nil {
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t.Fatalf("Failed to get high water mark: %v", err)
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}
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if hwm != 3 {
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t.Errorf("Expected high water mark 3, got %d", hwm)
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}
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}
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func TestSMQOffsetIntegration_EmptyBatch(t *testing.T) {
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storage := NewInMemoryOffsetStorage()
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integration := NewSMQOffsetIntegration(storage)
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partition := createTestPartition()
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// Publish empty batch
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response, err := integration.PublishRecordBatch(partition, []PublishRecordRequest{})
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if err != nil {
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t.Fatalf("Failed to publish empty batch: %v", err)
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}
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if response.Error == "" {
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t.Error("Expected error for empty batch")
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}
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}
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func TestSMQOffsetIntegration_CreateSubscription(t *testing.T) {
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storage := NewInMemoryOffsetStorage()
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integration := NewSMQOffsetIntegration(storage)
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partition := createTestPartition()
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// Publish some records first
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records := []PublishRecordRequest{
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{Key: []byte("key1"), Value: &schema_pb.RecordValue{}},
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{Key: []byte("key2"), Value: &schema_pb.RecordValue{}},
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}
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integration.PublishRecordBatch(partition, records)
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// Create subscription
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sub, err := integration.CreateSubscription(
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"test-sub",
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partition,
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schema_pb.OffsetType_RESET_TO_EARLIEST,
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0,
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)
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if err != nil {
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t.Fatalf("Failed to create subscription: %v", err)
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}
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if sub.ID != "test-sub" {
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t.Errorf("Expected subscription ID 'test-sub', got %s", sub.ID)
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}
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if sub.StartOffset != 0 {
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t.Errorf("Expected start offset 0, got %d", sub.StartOffset)
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}
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}
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func TestSMQOffsetIntegration_SubscribeRecords(t *testing.T) {
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storage := NewInMemoryOffsetStorage()
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integration := NewSMQOffsetIntegration(storage)
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partition := createTestPartition()
|
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|
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// Publish some records
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records := []PublishRecordRequest{
|
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{Key: []byte("key1"), Value: &schema_pb.RecordValue{}},
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{Key: []byte("key2"), Value: &schema_pb.RecordValue{}},
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{Key: []byte("key3"), Value: &schema_pb.RecordValue{}},
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}
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integration.PublishRecordBatch(partition, records)
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// Create subscription
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sub, err := integration.CreateSubscription(
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"test-sub",
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partition,
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schema_pb.OffsetType_RESET_TO_EARLIEST,
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0,
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)
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if err != nil {
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t.Fatalf("Failed to create subscription: %v", err)
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}
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// Subscribe to records
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responses, err := integration.SubscribeRecords(sub, 2)
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||||
if err != nil {
|
||||
t.Fatalf("Failed to subscribe to records: %v", err)
|
||||
}
|
||||
|
||||
if len(responses) != 2 {
|
||||
t.Errorf("Expected 2 responses, got %d", len(responses))
|
||||
}
|
||||
|
||||
// Check offset progression
|
||||
if responses[0].Offset != 0 {
|
||||
t.Errorf("Expected first record offset 0, got %d", responses[0].Offset)
|
||||
}
|
||||
|
||||
if responses[1].Offset != 1 {
|
||||
t.Errorf("Expected second record offset 1, got %d", responses[1].Offset)
|
||||
}
|
||||
|
||||
// Check subscription advancement
|
||||
if sub.CurrentOffset != 2 {
|
||||
t.Errorf("Expected subscription current offset 2, got %d", sub.CurrentOffset)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSMQOffsetIntegration_SubscribeEmptyPartition(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
integration := NewSMQOffsetIntegration(storage)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Create subscription on empty partition
|
||||
sub, err := integration.CreateSubscription(
|
||||
"empty-sub",
|
||||
partition,
|
||||
schema_pb.OffsetType_RESET_TO_EARLIEST,
|
||||
0,
|
||||
)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Subscribe to records (should return empty)
|
||||
responses, err := integration.SubscribeRecords(sub, 10)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to subscribe to empty partition: %v", err)
|
||||
}
|
||||
|
||||
if len(responses) != 0 {
|
||||
t.Errorf("Expected 0 responses from empty partition, got %d", len(responses))
|
||||
}
|
||||
}
|
||||
|
||||
func TestSMQOffsetIntegration_SeekSubscription(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
integration := NewSMQOffsetIntegration(storage)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Publish records
|
||||
records := []PublishRecordRequest{
|
||||
{Key: []byte("key1"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key2"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key3"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key4"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key5"), Value: &schema_pb.RecordValue{}},
|
||||
}
|
||||
integration.PublishRecordBatch(partition, records)
|
||||
|
||||
// Create subscription
|
||||
sub, err := integration.CreateSubscription(
|
||||
"seek-sub",
|
||||
partition,
|
||||
schema_pb.OffsetType_RESET_TO_EARLIEST,
|
||||
0,
|
||||
)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Seek to offset 3
|
||||
err = integration.SeekSubscription("seek-sub", 3)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to seek subscription: %v", err)
|
||||
}
|
||||
|
||||
if sub.CurrentOffset != 3 {
|
||||
t.Errorf("Expected current offset 3 after seek, got %d", sub.CurrentOffset)
|
||||
}
|
||||
|
||||
// Subscribe from new position
|
||||
responses, err := integration.SubscribeRecords(sub, 2)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to subscribe after seek: %v", err)
|
||||
}
|
||||
|
||||
if len(responses) != 2 {
|
||||
t.Errorf("Expected 2 responses after seek, got %d", len(responses))
|
||||
}
|
||||
|
||||
if responses[0].Offset != 3 {
|
||||
t.Errorf("Expected first record offset 3 after seek, got %d", responses[0].Offset)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSMQOffsetIntegration_GetSubscriptionLag(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
integration := NewSMQOffsetIntegration(storage)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Publish records
|
||||
records := []PublishRecordRequest{
|
||||
{Key: []byte("key1"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key2"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key3"), Value: &schema_pb.RecordValue{}},
|
||||
}
|
||||
integration.PublishRecordBatch(partition, records)
|
||||
|
||||
// Create subscription at offset 1
|
||||
sub, err := integration.CreateSubscription(
|
||||
"lag-sub",
|
||||
partition,
|
||||
schema_pb.OffsetType_EXACT_OFFSET,
|
||||
1,
|
||||
)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Get lag
|
||||
lag, err := integration.GetSubscriptionLag("lag-sub")
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get subscription lag: %v", err)
|
||||
}
|
||||
|
||||
expectedLag := int64(3 - 1) // hwm - current
|
||||
if lag != expectedLag {
|
||||
t.Errorf("Expected lag %d, got %d", expectedLag, lag)
|
||||
}
|
||||
|
||||
// Advance subscription and check lag again
|
||||
integration.SubscribeRecords(sub, 1)
|
||||
|
||||
lag, err = integration.GetSubscriptionLag("lag-sub")
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get lag after advance: %v", err)
|
||||
}
|
||||
|
||||
expectedLag = int64(3 - 2) // hwm - current
|
||||
if lag != expectedLag {
|
||||
t.Errorf("Expected lag %d after advance, got %d", expectedLag, lag)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSMQOffsetIntegration_CloseSubscription(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
integration := NewSMQOffsetIntegration(storage)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Create subscription
|
||||
_, err := integration.CreateSubscription(
|
||||
"close-sub",
|
||||
partition,
|
||||
schema_pb.OffsetType_RESET_TO_EARLIEST,
|
||||
0,
|
||||
)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Close subscription
|
||||
err = integration.CloseSubscription("close-sub")
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to close subscription: %v", err)
|
||||
}
|
||||
|
||||
// Try to get lag (should fail)
|
||||
_, err = integration.GetSubscriptionLag("close-sub")
|
||||
if err == nil {
|
||||
t.Error("Expected error when getting lag for closed subscription")
|
||||
}
|
||||
}
|
||||
|
||||
func TestSMQOffsetIntegration_ValidateOffsetRange(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
integration := NewSMQOffsetIntegration(storage)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Publish some records
|
||||
records := []PublishRecordRequest{
|
||||
{Key: []byte("key1"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key2"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key3"), Value: &schema_pb.RecordValue{}},
|
||||
}
|
||||
integration.PublishRecordBatch(partition, records)
|
||||
|
||||
// Test valid range
|
||||
err := integration.ValidateOffsetRange(partition, 0, 2)
|
||||
if err != nil {
|
||||
t.Errorf("Valid range should not return error: %v", err)
|
||||
}
|
||||
|
||||
// Test invalid range (beyond hwm)
|
||||
err = integration.ValidateOffsetRange(partition, 0, 5)
|
||||
if err == nil {
|
||||
t.Error("Expected error for range beyond high water mark")
|
||||
}
|
||||
}
|
||||
|
||||
func TestSMQOffsetIntegration_GetAvailableOffsetRange(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
integration := NewSMQOffsetIntegration(storage)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Test empty partition
|
||||
offsetRange, err := integration.GetAvailableOffsetRange(partition)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get available range for empty partition: %v", err)
|
||||
}
|
||||
|
||||
if offsetRange.Count != 0 {
|
||||
t.Errorf("Expected empty range for empty partition, got count %d", offsetRange.Count)
|
||||
}
|
||||
|
||||
// Publish records
|
||||
records := []PublishRecordRequest{
|
||||
{Key: []byte("key1"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key2"), Value: &schema_pb.RecordValue{}},
|
||||
}
|
||||
integration.PublishRecordBatch(partition, records)
|
||||
|
||||
// Test with data
|
||||
offsetRange, err = integration.GetAvailableOffsetRange(partition)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get available range: %v", err)
|
||||
}
|
||||
|
||||
if offsetRange.StartOffset != 0 {
|
||||
t.Errorf("Expected start offset 0, got %d", offsetRange.StartOffset)
|
||||
}
|
||||
|
||||
if offsetRange.EndOffset != 1 {
|
||||
t.Errorf("Expected end offset 1, got %d", offsetRange.EndOffset)
|
||||
}
|
||||
|
||||
if offsetRange.Count != 2 {
|
||||
t.Errorf("Expected count 2, got %d", offsetRange.Count)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSMQOffsetIntegration_GetOffsetMetrics(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
integration := NewSMQOffsetIntegration(storage)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Initial metrics
|
||||
metrics := integration.GetOffsetMetrics()
|
||||
if metrics.TotalOffsets != 0 {
|
||||
t.Errorf("Expected 0 total offsets initially, got %d", metrics.TotalOffsets)
|
||||
}
|
||||
|
||||
if metrics.ActiveSubscriptions != 0 {
|
||||
t.Errorf("Expected 0 active subscriptions initially, got %d", metrics.ActiveSubscriptions)
|
||||
}
|
||||
|
||||
// Publish records
|
||||
records := []PublishRecordRequest{
|
||||
{Key: []byte("key1"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key2"), Value: &schema_pb.RecordValue{}},
|
||||
}
|
||||
integration.PublishRecordBatch(partition, records)
|
||||
|
||||
// Create subscriptions
|
||||
integration.CreateSubscription("sub1", partition, schema_pb.OffsetType_RESET_TO_EARLIEST, 0)
|
||||
integration.CreateSubscription("sub2", partition, schema_pb.OffsetType_RESET_TO_EARLIEST, 0)
|
||||
|
||||
// Check updated metrics
|
||||
metrics = integration.GetOffsetMetrics()
|
||||
if metrics.TotalOffsets != 2 {
|
||||
t.Errorf("Expected 2 total offsets, got %d", metrics.TotalOffsets)
|
||||
}
|
||||
|
||||
if metrics.ActiveSubscriptions != 2 {
|
||||
t.Errorf("Expected 2 active subscriptions, got %d", metrics.ActiveSubscriptions)
|
||||
}
|
||||
|
||||
if metrics.PartitionCount != 1 {
|
||||
t.Errorf("Expected 1 partition, got %d", metrics.PartitionCount)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSMQOffsetIntegration_GetOffsetInfo(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
integration := NewSMQOffsetIntegration(storage)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Test non-existent offset
|
||||
info, err := integration.GetOffsetInfo(partition, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get offset info: %v", err)
|
||||
}
|
||||
|
||||
if info.Exists {
|
||||
t.Error("Offset should not exist in empty partition")
|
||||
}
|
||||
|
||||
// Publish record
|
||||
integration.PublishRecord(partition, []byte("key1"), &schema_pb.RecordValue{})
|
||||
|
||||
// Test existing offset
|
||||
info, err = integration.GetOffsetInfo(partition, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get offset info for existing offset: %v", err)
|
||||
}
|
||||
|
||||
if !info.Exists {
|
||||
t.Error("Offset should exist after publishing")
|
||||
}
|
||||
|
||||
if info.Offset != 0 {
|
||||
t.Errorf("Expected offset 0, got %d", info.Offset)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSMQOffsetIntegration_GetPartitionOffsetInfo(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
integration := NewSMQOffsetIntegration(storage)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Test empty partition
|
||||
info, err := integration.GetPartitionOffsetInfo(partition)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get partition offset info: %v", err)
|
||||
}
|
||||
|
||||
if info.EarliestOffset != 0 {
|
||||
t.Errorf("Expected earliest offset 0, got %d", info.EarliestOffset)
|
||||
}
|
||||
|
||||
if info.LatestOffset != -1 {
|
||||
t.Errorf("Expected latest offset -1 for empty partition, got %d", info.LatestOffset)
|
||||
}
|
||||
|
||||
if info.HighWaterMark != 0 {
|
||||
t.Errorf("Expected high water mark 0, got %d", info.HighWaterMark)
|
||||
}
|
||||
|
||||
if info.RecordCount != 0 {
|
||||
t.Errorf("Expected record count 0, got %d", info.RecordCount)
|
||||
}
|
||||
|
||||
// Publish records
|
||||
records := []PublishRecordRequest{
|
||||
{Key: []byte("key1"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key2"), Value: &schema_pb.RecordValue{}},
|
||||
{Key: []byte("key3"), Value: &schema_pb.RecordValue{}},
|
||||
}
|
||||
integration.PublishRecordBatch(partition, records)
|
||||
|
||||
// Create subscription
|
||||
integration.CreateSubscription("test-sub", partition, schema_pb.OffsetType_RESET_TO_EARLIEST, 0)
|
||||
|
||||
// Test with data
|
||||
info, err = integration.GetPartitionOffsetInfo(partition)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get partition offset info with data: %v", err)
|
||||
}
|
||||
|
||||
if info.EarliestOffset != 0 {
|
||||
t.Errorf("Expected earliest offset 0, got %d", info.EarliestOffset)
|
||||
}
|
||||
|
||||
if info.LatestOffset != 2 {
|
||||
t.Errorf("Expected latest offset 2, got %d", info.LatestOffset)
|
||||
}
|
||||
|
||||
if info.HighWaterMark != 3 {
|
||||
t.Errorf("Expected high water mark 3, got %d", info.HighWaterMark)
|
||||
}
|
||||
|
||||
if info.RecordCount != 3 {
|
||||
t.Errorf("Expected record count 3, got %d", info.RecordCount)
|
||||
}
|
||||
|
||||
if info.ActiveSubscriptions != 1 {
|
||||
t.Errorf("Expected 1 active subscription, got %d", info.ActiveSubscriptions)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,349 @@
|
||||
package offset
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sync"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
)
|
||||
|
||||
// OffsetSubscriber handles offset-based subscription logic
|
||||
type OffsetSubscriber struct {
|
||||
mu sync.RWMutex
|
||||
offsetRegistry *PartitionOffsetRegistry
|
||||
subscriptions map[string]*OffsetSubscription
|
||||
}
|
||||
|
||||
// OffsetSubscription represents an active offset-based subscription
|
||||
type OffsetSubscription struct {
|
||||
ID string
|
||||
Partition *schema_pb.Partition
|
||||
StartOffset int64
|
||||
CurrentOffset int64
|
||||
OffsetType schema_pb.OffsetType
|
||||
IsActive bool
|
||||
offsetRegistry *PartitionOffsetRegistry
|
||||
}
|
||||
|
||||
// NewOffsetSubscriber creates a new offset-based subscriber
|
||||
func NewOffsetSubscriber(offsetRegistry *PartitionOffsetRegistry) *OffsetSubscriber {
|
||||
return &OffsetSubscriber{
|
||||
offsetRegistry: offsetRegistry,
|
||||
subscriptions: make(map[string]*OffsetSubscription),
|
||||
}
|
||||
}
|
||||
|
||||
// CreateSubscription creates a new offset-based subscription
|
||||
func (s *OffsetSubscriber) CreateSubscription(
|
||||
subscriptionID string,
|
||||
partition *schema_pb.Partition,
|
||||
offsetType schema_pb.OffsetType,
|
||||
startOffset int64,
|
||||
) (*OffsetSubscription, error) {
|
||||
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
|
||||
// Check if subscription already exists
|
||||
if _, exists := s.subscriptions[subscriptionID]; exists {
|
||||
return nil, fmt.Errorf("subscription %s already exists", subscriptionID)
|
||||
}
|
||||
|
||||
// Resolve the actual start offset based on type
|
||||
actualStartOffset, err := s.resolveStartOffset(partition, offsetType, startOffset)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to resolve start offset: %w", err)
|
||||
}
|
||||
|
||||
subscription := &OffsetSubscription{
|
||||
ID: subscriptionID,
|
||||
Partition: partition,
|
||||
StartOffset: actualStartOffset,
|
||||
CurrentOffset: actualStartOffset,
|
||||
OffsetType: offsetType,
|
||||
IsActive: true,
|
||||
offsetRegistry: s.offsetRegistry,
|
||||
}
|
||||
|
||||
s.subscriptions[subscriptionID] = subscription
|
||||
return subscription, nil
|
||||
}
|
||||
|
||||
// GetSubscription retrieves an existing subscription
|
||||
func (s *OffsetSubscriber) GetSubscription(subscriptionID string) (*OffsetSubscription, error) {
|
||||
s.mu.RLock()
|
||||
defer s.mu.RUnlock()
|
||||
|
||||
subscription, exists := s.subscriptions[subscriptionID]
|
||||
if !exists {
|
||||
return nil, fmt.Errorf("subscription %s not found", subscriptionID)
|
||||
}
|
||||
|
||||
return subscription, nil
|
||||
}
|
||||
|
||||
// CloseSubscription closes and removes a subscription
|
||||
func (s *OffsetSubscriber) CloseSubscription(subscriptionID string) error {
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
|
||||
subscription, exists := s.subscriptions[subscriptionID]
|
||||
if !exists {
|
||||
return fmt.Errorf("subscription %s not found", subscriptionID)
|
||||
}
|
||||
|
||||
subscription.IsActive = false
|
||||
delete(s.subscriptions, subscriptionID)
|
||||
return nil
|
||||
}
|
||||
|
||||
// resolveStartOffset resolves the actual start offset based on OffsetType
|
||||
func (s *OffsetSubscriber) resolveStartOffset(
|
||||
partition *schema_pb.Partition,
|
||||
offsetType schema_pb.OffsetType,
|
||||
requestedOffset int64,
|
||||
) (int64, error) {
|
||||
|
||||
switch offsetType {
|
||||
case schema_pb.OffsetType_EXACT_OFFSET:
|
||||
// Validate that the requested offset exists
|
||||
return s.validateAndGetOffset(partition, requestedOffset)
|
||||
|
||||
case schema_pb.OffsetType_RESET_TO_OFFSET:
|
||||
// Use the requested offset, even if it doesn't exist yet
|
||||
return requestedOffset, nil
|
||||
|
||||
case schema_pb.OffsetType_RESET_TO_EARLIEST:
|
||||
// Start from offset 0
|
||||
return 0, nil
|
||||
|
||||
case schema_pb.OffsetType_RESET_TO_LATEST:
|
||||
// Start from the current high water mark
|
||||
hwm, err := s.offsetRegistry.GetHighWaterMark(partition)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return hwm, nil
|
||||
|
||||
case schema_pb.OffsetType_RESUME_OR_EARLIEST:
|
||||
// Try to resume from a saved position, fallback to earliest
|
||||
// For now, just use earliest (consumer group position tracking will be added later)
|
||||
return 0, nil
|
||||
|
||||
case schema_pb.OffsetType_RESUME_OR_LATEST:
|
||||
// Try to resume from a saved position, fallback to latest
|
||||
// For now, just use latest
|
||||
hwm, err := s.offsetRegistry.GetHighWaterMark(partition)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return hwm, nil
|
||||
|
||||
default:
|
||||
return 0, fmt.Errorf("unsupported offset type: %v", offsetType)
|
||||
}
|
||||
}
|
||||
|
||||
// validateAndGetOffset validates that an offset exists and returns it
|
||||
func (s *OffsetSubscriber) validateAndGetOffset(partition *schema_pb.Partition, offset int64) (int64, error) {
|
||||
if offset < 0 {
|
||||
return 0, fmt.Errorf("offset cannot be negative: %d", offset)
|
||||
}
|
||||
|
||||
// Get the current high water mark
|
||||
hwm, err := s.offsetRegistry.GetHighWaterMark(partition)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("failed to get high water mark: %w", err)
|
||||
}
|
||||
|
||||
// Check if offset is within valid range
|
||||
if offset >= hwm {
|
||||
return 0, fmt.Errorf("offset %d is beyond high water mark %d", offset, hwm)
|
||||
}
|
||||
|
||||
return offset, nil
|
||||
}
|
||||
|
||||
// SeekToOffset seeks a subscription to a specific offset
|
||||
func (sub *OffsetSubscription) SeekToOffset(offset int64) error {
|
||||
if !sub.IsActive {
|
||||
return fmt.Errorf("subscription is not active")
|
||||
}
|
||||
|
||||
// Validate the offset
|
||||
if offset < 0 {
|
||||
return fmt.Errorf("offset cannot be negative: %d", offset)
|
||||
}
|
||||
|
||||
hwm, err := sub.offsetRegistry.GetHighWaterMark(sub.Partition)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to get high water mark: %w", err)
|
||||
}
|
||||
|
||||
if offset > hwm {
|
||||
return fmt.Errorf("offset %d is beyond high water mark %d", offset, hwm)
|
||||
}
|
||||
|
||||
sub.CurrentOffset = offset
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetNextOffset returns the next offset to read
|
||||
func (sub *OffsetSubscription) GetNextOffset() int64 {
|
||||
return sub.CurrentOffset
|
||||
}
|
||||
|
||||
// AdvanceOffset advances the subscription to the next offset
|
||||
func (sub *OffsetSubscription) AdvanceOffset() {
|
||||
sub.CurrentOffset++
|
||||
}
|
||||
|
||||
// GetLag returns the lag between current position and high water mark
|
||||
func (sub *OffsetSubscription) GetLag() (int64, error) {
|
||||
if !sub.IsActive {
|
||||
return 0, fmt.Errorf("subscription is not active")
|
||||
}
|
||||
|
||||
hwm, err := sub.offsetRegistry.GetHighWaterMark(sub.Partition)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("failed to get high water mark: %w", err)
|
||||
}
|
||||
|
||||
lag := hwm - sub.CurrentOffset
|
||||
if lag < 0 {
|
||||
lag = 0
|
||||
}
|
||||
|
||||
return lag, nil
|
||||
}
|
||||
|
||||
// IsAtEnd checks if the subscription has reached the end of available data
|
||||
func (sub *OffsetSubscription) IsAtEnd() (bool, error) {
|
||||
if !sub.IsActive {
|
||||
return true, fmt.Errorf("subscription is not active")
|
||||
}
|
||||
|
||||
hwm, err := sub.offsetRegistry.GetHighWaterMark(sub.Partition)
|
||||
if err != nil {
|
||||
return false, fmt.Errorf("failed to get high water mark: %w", err)
|
||||
}
|
||||
|
||||
return sub.CurrentOffset >= hwm, nil
|
||||
}
|
||||
|
||||
// OffsetRange represents a range of offsets
|
||||
type OffsetRange struct {
|
||||
StartOffset int64
|
||||
EndOffset int64
|
||||
Count int64
|
||||
}
|
||||
|
||||
// GetOffsetRange returns a range of offsets for batch reading
|
||||
func (sub *OffsetSubscription) GetOffsetRange(maxCount int64) (*OffsetRange, error) {
|
||||
if !sub.IsActive {
|
||||
return nil, fmt.Errorf("subscription is not active")
|
||||
}
|
||||
|
||||
hwm, err := sub.offsetRegistry.GetHighWaterMark(sub.Partition)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to get high water mark: %w", err)
|
||||
}
|
||||
|
||||
startOffset := sub.CurrentOffset
|
||||
endOffset := startOffset + maxCount - 1
|
||||
|
||||
// Don't go beyond high water mark
|
||||
if endOffset >= hwm {
|
||||
endOffset = hwm - 1
|
||||
}
|
||||
|
||||
// If start is already at or beyond HWM, return empty range
|
||||
if startOffset >= hwm {
|
||||
return &OffsetRange{
|
||||
StartOffset: startOffset,
|
||||
EndOffset: startOffset - 1, // Empty range
|
||||
Count: 0,
|
||||
}, nil
|
||||
}
|
||||
|
||||
count := endOffset - startOffset + 1
|
||||
return &OffsetRange{
|
||||
StartOffset: startOffset,
|
||||
EndOffset: endOffset,
|
||||
Count: count,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// AdvanceOffsetBy advances the subscription by a specific number of offsets
|
||||
func (sub *OffsetSubscription) AdvanceOffsetBy(count int64) {
|
||||
sub.CurrentOffset += count
|
||||
}
|
||||
|
||||
// OffsetSeeker provides utilities for offset-based seeking
|
||||
type OffsetSeeker struct {
|
||||
offsetRegistry *PartitionOffsetRegistry
|
||||
}
|
||||
|
||||
// NewOffsetSeeker creates a new offset seeker
|
||||
func NewOffsetSeeker(offsetRegistry *PartitionOffsetRegistry) *OffsetSeeker {
|
||||
return &OffsetSeeker{
|
||||
offsetRegistry: offsetRegistry,
|
||||
}
|
||||
}
|
||||
|
||||
// SeekToTimestamp finds the offset closest to a given timestamp
|
||||
// This bridges offset-based and timestamp-based seeking
|
||||
func (seeker *OffsetSeeker) SeekToTimestamp(partition *schema_pb.Partition, timestamp int64) (int64, error) {
|
||||
// TODO: This requires integration with the storage layer to map timestamps to offsets
|
||||
// For now, return an error indicating this feature needs implementation
|
||||
return 0, fmt.Errorf("timestamp-to-offset mapping not implemented yet")
|
||||
}
|
||||
|
||||
// ValidateOffsetRange validates that an offset range is valid
|
||||
func (seeker *OffsetSeeker) ValidateOffsetRange(partition *schema_pb.Partition, startOffset, endOffset int64) error {
|
||||
if startOffset < 0 {
|
||||
return fmt.Errorf("start offset cannot be negative: %d", startOffset)
|
||||
}
|
||||
|
||||
if endOffset < startOffset {
|
||||
return fmt.Errorf("end offset %d cannot be less than start offset %d", endOffset, startOffset)
|
||||
}
|
||||
|
||||
hwm, err := seeker.offsetRegistry.GetHighWaterMark(partition)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to get high water mark: %w", err)
|
||||
}
|
||||
|
||||
if startOffset >= hwm {
|
||||
return fmt.Errorf("start offset %d is beyond high water mark %d", startOffset, hwm)
|
||||
}
|
||||
|
||||
if endOffset >= hwm {
|
||||
return fmt.Errorf("end offset %d is beyond high water mark %d", endOffset, hwm)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetAvailableOffsetRange returns the range of available offsets for a partition
|
||||
func (seeker *OffsetSeeker) GetAvailableOffsetRange(partition *schema_pb.Partition) (*OffsetRange, error) {
|
||||
hwm, err := seeker.offsetRegistry.GetHighWaterMark(partition)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to get high water mark: %w", err)
|
||||
}
|
||||
|
||||
if hwm == 0 {
|
||||
// No data available
|
||||
return &OffsetRange{
|
||||
StartOffset: 0,
|
||||
EndOffset: -1,
|
||||
Count: 0,
|
||||
}, nil
|
||||
}
|
||||
|
||||
return &OffsetRange{
|
||||
StartOffset: 0,
|
||||
EndOffset: hwm - 1,
|
||||
Count: hwm,
|
||||
}, nil
|
||||
}
|
||||
@@ -0,0 +1,457 @@
|
||||
package offset
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
)
|
||||
|
||||
func TestOffsetSubscriber_CreateSubscription(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Assign some offsets first
|
||||
registry.AssignOffsets(partition, 10)
|
||||
|
||||
// Test EXACT_OFFSET subscription
|
||||
sub, err := subscriber.CreateSubscription("test-sub-1", partition, schema_pb.OffsetType_EXACT_OFFSET, 5)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create EXACT_OFFSET subscription: %v", err)
|
||||
}
|
||||
|
||||
if sub.StartOffset != 5 {
|
||||
t.Errorf("Expected start offset 5, got %d", sub.StartOffset)
|
||||
}
|
||||
if sub.CurrentOffset != 5 {
|
||||
t.Errorf("Expected current offset 5, got %d", sub.CurrentOffset)
|
||||
}
|
||||
|
||||
// Test RESET_TO_LATEST subscription
|
||||
sub2, err := subscriber.CreateSubscription("test-sub-2", partition, schema_pb.OffsetType_RESET_TO_LATEST, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create RESET_TO_LATEST subscription: %v", err)
|
||||
}
|
||||
|
||||
if sub2.StartOffset != 10 { // Should be at high water mark
|
||||
t.Errorf("Expected start offset 10, got %d", sub2.StartOffset)
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscriber_InvalidSubscription(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Assign some offsets
|
||||
registry.AssignOffsets(partition, 5)
|
||||
|
||||
// Test invalid offset (beyond high water mark)
|
||||
_, err := subscriber.CreateSubscription("invalid-sub", partition, schema_pb.OffsetType_EXACT_OFFSET, 10)
|
||||
if err == nil {
|
||||
t.Error("Expected error for offset beyond high water mark")
|
||||
}
|
||||
|
||||
// Test negative offset
|
||||
_, err = subscriber.CreateSubscription("invalid-sub-2", partition, schema_pb.OffsetType_EXACT_OFFSET, -1)
|
||||
if err == nil {
|
||||
t.Error("Expected error for negative offset")
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscriber_DuplicateSubscription(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Create first subscription
|
||||
_, err := subscriber.CreateSubscription("duplicate-sub", partition, schema_pb.OffsetType_RESET_TO_EARLIEST, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create first subscription: %v", err)
|
||||
}
|
||||
|
||||
// Try to create duplicate
|
||||
_, err = subscriber.CreateSubscription("duplicate-sub", partition, schema_pb.OffsetType_RESET_TO_EARLIEST, 0)
|
||||
if err == nil {
|
||||
t.Error("Expected error for duplicate subscription ID")
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscription_SeekToOffset(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Assign offsets
|
||||
registry.AssignOffsets(partition, 20)
|
||||
|
||||
// Create subscription
|
||||
sub, err := subscriber.CreateSubscription("seek-test", partition, schema_pb.OffsetType_RESET_TO_EARLIEST, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Test valid seek
|
||||
err = sub.SeekToOffset(10)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to seek to offset 10: %v", err)
|
||||
}
|
||||
|
||||
if sub.CurrentOffset != 10 {
|
||||
t.Errorf("Expected current offset 10, got %d", sub.CurrentOffset)
|
||||
}
|
||||
|
||||
// Test invalid seek (beyond high water mark)
|
||||
err = sub.SeekToOffset(25)
|
||||
if err == nil {
|
||||
t.Error("Expected error for seek beyond high water mark")
|
||||
}
|
||||
|
||||
// Test negative seek
|
||||
err = sub.SeekToOffset(-1)
|
||||
if err == nil {
|
||||
t.Error("Expected error for negative seek offset")
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscription_AdvanceOffset(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Create subscription
|
||||
sub, err := subscriber.CreateSubscription("advance-test", partition, schema_pb.OffsetType_RESET_TO_EARLIEST, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Test single advance
|
||||
initialOffset := sub.GetNextOffset()
|
||||
sub.AdvanceOffset()
|
||||
|
||||
if sub.GetNextOffset() != initialOffset+1 {
|
||||
t.Errorf("Expected offset %d, got %d", initialOffset+1, sub.GetNextOffset())
|
||||
}
|
||||
|
||||
// Test batch advance
|
||||
sub.AdvanceOffsetBy(5)
|
||||
|
||||
if sub.GetNextOffset() != initialOffset+6 {
|
||||
t.Errorf("Expected offset %d, got %d", initialOffset+6, sub.GetNextOffset())
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscription_GetLag(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Assign offsets
|
||||
registry.AssignOffsets(partition, 15)
|
||||
|
||||
// Create subscription at offset 5
|
||||
sub, err := subscriber.CreateSubscription("lag-test", partition, schema_pb.OffsetType_EXACT_OFFSET, 5)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Check initial lag
|
||||
lag, err := sub.GetLag()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get lag: %v", err)
|
||||
}
|
||||
|
||||
expectedLag := int64(15 - 5) // hwm - current
|
||||
if lag != expectedLag {
|
||||
t.Errorf("Expected lag %d, got %d", expectedLag, lag)
|
||||
}
|
||||
|
||||
// Advance and check lag again
|
||||
sub.AdvanceOffsetBy(3)
|
||||
|
||||
lag, err = sub.GetLag()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get lag after advance: %v", err)
|
||||
}
|
||||
|
||||
expectedLag = int64(15 - 8) // hwm - current
|
||||
if lag != expectedLag {
|
||||
t.Errorf("Expected lag %d after advance, got %d", expectedLag, lag)
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscription_IsAtEnd(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Assign offsets
|
||||
registry.AssignOffsets(partition, 10)
|
||||
|
||||
// Create subscription at end
|
||||
sub, err := subscriber.CreateSubscription("end-test", partition, schema_pb.OffsetType_RESET_TO_LATEST, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Should be at end
|
||||
atEnd, err := sub.IsAtEnd()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to check if at end: %v", err)
|
||||
}
|
||||
|
||||
if !atEnd {
|
||||
t.Error("Expected subscription to be at end")
|
||||
}
|
||||
|
||||
// Seek to middle and check again
|
||||
sub.SeekToOffset(5)
|
||||
|
||||
atEnd, err = sub.IsAtEnd()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to check if at end after seek: %v", err)
|
||||
}
|
||||
|
||||
if atEnd {
|
||||
t.Error("Expected subscription not to be at end after seek")
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscription_GetOffsetRange(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Assign offsets
|
||||
registry.AssignOffsets(partition, 20)
|
||||
|
||||
// Create subscription
|
||||
sub, err := subscriber.CreateSubscription("range-test", partition, schema_pb.OffsetType_EXACT_OFFSET, 5)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Test normal range
|
||||
offsetRange, err := sub.GetOffsetRange(10)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get offset range: %v", err)
|
||||
}
|
||||
|
||||
if offsetRange.StartOffset != 5 {
|
||||
t.Errorf("Expected start offset 5, got %d", offsetRange.StartOffset)
|
||||
}
|
||||
if offsetRange.EndOffset != 14 {
|
||||
t.Errorf("Expected end offset 14, got %d", offsetRange.EndOffset)
|
||||
}
|
||||
if offsetRange.Count != 10 {
|
||||
t.Errorf("Expected count 10, got %d", offsetRange.Count)
|
||||
}
|
||||
|
||||
// Test range that exceeds high water mark
|
||||
sub.SeekToOffset(15)
|
||||
offsetRange, err = sub.GetOffsetRange(10)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get offset range near end: %v", err)
|
||||
}
|
||||
|
||||
if offsetRange.StartOffset != 15 {
|
||||
t.Errorf("Expected start offset 15, got %d", offsetRange.StartOffset)
|
||||
}
|
||||
if offsetRange.EndOffset != 19 { // Should be capped at hwm-1
|
||||
t.Errorf("Expected end offset 19, got %d", offsetRange.EndOffset)
|
||||
}
|
||||
if offsetRange.Count != 5 {
|
||||
t.Errorf("Expected count 5, got %d", offsetRange.Count)
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscription_EmptyRange(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Assign offsets
|
||||
registry.AssignOffsets(partition, 10)
|
||||
|
||||
// Create subscription at end
|
||||
sub, err := subscriber.CreateSubscription("empty-range-test", partition, schema_pb.OffsetType_RESET_TO_LATEST, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Request range when at end
|
||||
offsetRange, err := sub.GetOffsetRange(5)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get offset range at end: %v", err)
|
||||
}
|
||||
|
||||
if offsetRange.Count != 0 {
|
||||
t.Errorf("Expected empty range (count 0), got count %d", offsetRange.Count)
|
||||
}
|
||||
|
||||
if offsetRange.StartOffset != 10 {
|
||||
t.Errorf("Expected start offset 10, got %d", offsetRange.StartOffset)
|
||||
}
|
||||
|
||||
if offsetRange.EndOffset != 9 { // Empty range: end < start
|
||||
t.Errorf("Expected end offset 9 (empty range), got %d", offsetRange.EndOffset)
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSeeker_ValidateOffsetRange(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
seeker := NewOffsetSeeker(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Assign offsets
|
||||
registry.AssignOffsets(partition, 15)
|
||||
|
||||
// Test valid range
|
||||
err := seeker.ValidateOffsetRange(partition, 5, 10)
|
||||
if err != nil {
|
||||
t.Errorf("Valid range should not return error: %v", err)
|
||||
}
|
||||
|
||||
// Test invalid ranges
|
||||
testCases := []struct {
|
||||
name string
|
||||
startOffset int64
|
||||
endOffset int64
|
||||
expectError bool
|
||||
}{
|
||||
{"negative start", -1, 5, true},
|
||||
{"end before start", 10, 5, true},
|
||||
{"start beyond hwm", 20, 25, true},
|
||||
{"valid range", 0, 14, false},
|
||||
{"single offset", 5, 5, false},
|
||||
}
|
||||
|
||||
for _, tc := range testCases {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
err := seeker.ValidateOffsetRange(partition, tc.startOffset, tc.endOffset)
|
||||
if tc.expectError && err == nil {
|
||||
t.Error("Expected error but got none")
|
||||
}
|
||||
if !tc.expectError && err != nil {
|
||||
t.Errorf("Expected no error but got: %v", err)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSeeker_GetAvailableOffsetRange(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
seeker := NewOffsetSeeker(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Test empty partition
|
||||
offsetRange, err := seeker.GetAvailableOffsetRange(partition)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get available range for empty partition: %v", err)
|
||||
}
|
||||
|
||||
if offsetRange.Count != 0 {
|
||||
t.Errorf("Expected empty range for empty partition, got count %d", offsetRange.Count)
|
||||
}
|
||||
|
||||
// Assign offsets and test again
|
||||
registry.AssignOffsets(partition, 25)
|
||||
|
||||
offsetRange, err = seeker.GetAvailableOffsetRange(partition)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get available range: %v", err)
|
||||
}
|
||||
|
||||
if offsetRange.StartOffset != 0 {
|
||||
t.Errorf("Expected start offset 0, got %d", offsetRange.StartOffset)
|
||||
}
|
||||
if offsetRange.EndOffset != 24 {
|
||||
t.Errorf("Expected end offset 24, got %d", offsetRange.EndOffset)
|
||||
}
|
||||
if offsetRange.Count != 25 {
|
||||
t.Errorf("Expected count 25, got %d", offsetRange.Count)
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscriber_CloseSubscription(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Create subscription
|
||||
sub, err := subscriber.CreateSubscription("close-test", partition, schema_pb.OffsetType_RESET_TO_EARLIEST, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
// Verify subscription exists
|
||||
_, err = subscriber.GetSubscription("close-test")
|
||||
if err != nil {
|
||||
t.Fatalf("Subscription should exist: %v", err)
|
||||
}
|
||||
|
||||
// Close subscription
|
||||
err = subscriber.CloseSubscription("close-test")
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to close subscription: %v", err)
|
||||
}
|
||||
|
||||
// Verify subscription is gone
|
||||
_, err = subscriber.GetSubscription("close-test")
|
||||
if err == nil {
|
||||
t.Error("Subscription should not exist after close")
|
||||
}
|
||||
|
||||
// Verify subscription is marked inactive
|
||||
if sub.IsActive {
|
||||
t.Error("Subscription should be marked inactive after close")
|
||||
}
|
||||
}
|
||||
|
||||
func TestOffsetSubscription_InactiveOperations(t *testing.T) {
|
||||
storage := NewInMemoryOffsetStorage()
|
||||
registry := NewPartitionOffsetRegistry(storage)
|
||||
subscriber := NewOffsetSubscriber(registry)
|
||||
partition := createTestPartition()
|
||||
|
||||
// Create and close subscription
|
||||
sub, err := subscriber.CreateSubscription("inactive-test", partition, schema_pb.OffsetType_RESET_TO_EARLIEST, 0)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create subscription: %v", err)
|
||||
}
|
||||
|
||||
subscriber.CloseSubscription("inactive-test")
|
||||
|
||||
// Test operations on inactive subscription
|
||||
err = sub.SeekToOffset(5)
|
||||
if err == nil {
|
||||
t.Error("Expected error for seek on inactive subscription")
|
||||
}
|
||||
|
||||
_, err = sub.GetLag()
|
||||
if err == nil {
|
||||
t.Error("Expected error for GetLag on inactive subscription")
|
||||
}
|
||||
|
||||
_, err = sub.IsAtEnd()
|
||||
if err == nil {
|
||||
t.Error("Expected error for IsAtEnd on inactive subscription")
|
||||
}
|
||||
|
||||
_, err = sub.GetOffsetRange(10)
|
||||
if err == nil {
|
||||
t.Error("Expected error for GetOffsetRange on inactive subscription")
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user