mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2026-09-20 13:30:46 +02:00
Phase 5: Implement SQL storage backend for offset persistence
- Design comprehensive SQL schema for offset storage with future _index column support - Implement SQLOffsetStorage with full database operations: - Partition offset checkpoints with UPSERT functionality - Detailed offset mappings with range queries and statistics - Database migration system with version tracking - Performance optimizations with proper indexing - Add database migration manager with automatic schema updates - Create comprehensive test suite with 11 test cases covering: - Schema initialization and table creation - Checkpoint save/load operations with error handling - Offset mapping storage and retrieval with sorting - Range queries and highest offset detection - Partition statistics with NULL value handling - Cleanup operations for old data retention - Concurrent access safety and database vacuum - Extend BrokerOffsetManager with SQL storage integration: - NewBrokerOffsetManagerWithSQL for database-backed storage - Configurable storage backends (in-memory fallback, SQL preferred) - Database connection management and error handling - Add SQLite driver dependency and configure for optimal performance - Support for future database types (PostgreSQL, MySQL) with abstraction layer Key TODOs and Assumptions: - TODO: Add _index as computed column when database supports it - TODO: Implement database backup and restore functionality - TODO: Add configuration for database path and connection parameters - ASSUMPTION: Using SQLite for now, extensible to other databases - ASSUMPTION: WAL mode and performance pragmas for production use - ASSUMPTION: Migration system handles schema evolution gracefully All 11 SQL storage tests pass, providing robust persistent offset management.
This commit is contained in:
chrislu
@@ -198,6 +198,7 @@ require (
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github.com/kr/text v0.2.0 // indirect
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github.com/linkedin/goavro/v2 v2.14.0 // indirect
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github.com/lithammer/shortuuid/v3 v3.0.7 // indirect
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github.com/mattn/go-sqlite3 v1.14.32 // indirect
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github.com/openzipkin/zipkin-go v0.4.3 // indirect
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github.com/petermattis/goid v0.0.0-20180202154549-b0b1615b78e5 // indirect
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github.com/pierrre/geohash v1.0.0 // indirect
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@@ -1414,6 +1414,8 @@ github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzp
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github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
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github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
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github.com/mattn/go-sqlite3 v1.14.14/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
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github.com/mattn/go-sqlite3 v1.14.32 h1:JD12Ag3oLy1zQA+BNn74xRgaBbdhbNIDYvQUEuuErjs=
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github.com/mattn/go-sqlite3 v1.14.32/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
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github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
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github.com/minio/asm2plan9s v0.0.0-20200509001527-cdd76441f9d8/go.mod h1:mC1jAcsrzbxHt8iiaC+zU4b1ylILSosueou12R++wfY=
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github.com/minio/c2goasm v0.0.0-20190812172519-36a3d3bbc4f3/go.mod h1:RagcQ7I8IeTMnF8JTXieKnO4Z6JCsikNEzj0DwauVzE=
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@@ -20,9 +20,16 @@ type BrokerOffsetManager struct {
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// NewBrokerOffsetManager creates a new broker offset manager
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func NewBrokerOffsetManager() *BrokerOffsetManager {
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// TODO: Replace with SQL-based storage in Phase 5
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// ASSUMPTION: For now using in-memory storage, will be replaced with persistent storage
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storage := offset.NewInMemoryOffsetStorage()
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return NewBrokerOffsetManagerWithStorage(nil)
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}
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// NewBrokerOffsetManagerWithStorage creates a new broker offset manager with custom storage
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func NewBrokerOffsetManagerWithStorage(storage offset.OffsetStorage) *BrokerOffsetManager {
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// TODO: Add configuration for database path and type
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// ASSUMPTION: Using in-memory storage as fallback, SQL storage preferred when available
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if storage == nil {
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storage = offset.NewInMemoryOffsetStorage()
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}
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return &BrokerOffsetManager{
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offsetIntegration: offset.NewSMQOffsetIntegration(storage),
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@@ -31,6 +38,28 @@ func NewBrokerOffsetManager() *BrokerOffsetManager {
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}
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}
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// NewBrokerOffsetManagerWithSQL creates a new broker offset manager with SQL storage
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func NewBrokerOffsetManagerWithSQL(dbPath string) (*BrokerOffsetManager, error) {
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// Create or open SQL database
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db, err := offset.CreateDatabase(dbPath)
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if err != nil {
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return nil, fmt.Errorf("failed to create database: %w", err)
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}
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// Create SQL storage
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sqlStorage, err := offset.NewSQLOffsetStorage(db)
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if err != nil {
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db.Close()
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return nil, fmt.Errorf("failed to create SQL storage: %w", err)
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}
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return &BrokerOffsetManager{
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offsetIntegration: offset.NewSMQOffsetIntegration(sqlStorage),
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partitionManagers: make(map[string]*offset.PartitionOffsetManager),
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storage: sqlStorage,
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}, nil
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}
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// AssignOffset assigns the next offset for a partition
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func (bom *BrokerOffsetManager) AssignOffset(t topic.Topic, p topic.Partition) (int64, error) {
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partition := topicPartitionToSchemaPartition(t, p)
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@@ -0,0 +1,301 @@
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package offset
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import (
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"database/sql"
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"fmt"
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"time"
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)
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// MigrationVersion represents a database migration version
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type MigrationVersion struct {
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Version int
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Description string
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SQL string
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}
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// GetMigrations returns all available migrations for offset storage
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func GetMigrations() []MigrationVersion {
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return []MigrationVersion{
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{
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Version: 1,
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Description: "Create initial offset storage tables",
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SQL: `
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-- Partition offset checkpoints table
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-- TODO: Add _index as computed column when supported by database
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CREATE TABLE IF NOT EXISTS partition_offset_checkpoints (
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partition_key TEXT PRIMARY KEY,
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ring_size INTEGER NOT NULL,
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range_start INTEGER NOT NULL,
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range_stop INTEGER NOT NULL,
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unix_time_ns INTEGER NOT NULL,
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checkpoint_offset INTEGER NOT NULL,
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updated_at INTEGER NOT NULL
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);
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-- Offset mappings table for detailed tracking
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-- TODO: Add _index as computed column when supported by database
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CREATE TABLE IF NOT EXISTS offset_mappings (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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partition_key TEXT NOT NULL,
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kafka_offset INTEGER NOT NULL,
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smq_timestamp INTEGER NOT NULL,
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message_size INTEGER NOT NULL,
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created_at INTEGER NOT NULL,
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UNIQUE(partition_key, kafka_offset)
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);
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-- Schema migrations tracking table
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CREATE TABLE IF NOT EXISTS schema_migrations (
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version INTEGER PRIMARY KEY,
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description TEXT NOT NULL,
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applied_at INTEGER NOT NULL
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);
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`,
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},
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{
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Version: 2,
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Description: "Add indexes for performance optimization",
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SQL: `
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-- Indexes for performance
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CREATE INDEX IF NOT EXISTS idx_partition_offset_checkpoints_partition
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ON partition_offset_checkpoints(partition_key);
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CREATE INDEX IF NOT EXISTS idx_offset_mappings_partition_offset
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ON offset_mappings(partition_key, kafka_offset);
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CREATE INDEX IF NOT EXISTS idx_offset_mappings_timestamp
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ON offset_mappings(partition_key, smq_timestamp);
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CREATE INDEX IF NOT EXISTS idx_offset_mappings_created_at
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ON offset_mappings(created_at);
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`,
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},
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{
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Version: 3,
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Description: "Add partition metadata table for enhanced tracking",
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SQL: `
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-- Partition metadata table
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CREATE TABLE IF NOT EXISTS partition_metadata (
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partition_key TEXT PRIMARY KEY,
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ring_size INTEGER NOT NULL,
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range_start INTEGER NOT NULL,
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range_stop INTEGER NOT NULL,
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unix_time_ns INTEGER NOT NULL,
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created_at INTEGER NOT NULL,
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last_activity_at INTEGER NOT NULL,
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record_count INTEGER DEFAULT 0,
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total_size INTEGER DEFAULT 0
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);
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-- Index for partition metadata
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CREATE INDEX IF NOT EXISTS idx_partition_metadata_activity
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ON partition_metadata(last_activity_at);
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`,
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},
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}
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}
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// MigrationManager handles database schema migrations
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type MigrationManager struct {
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db *sql.DB
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}
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// NewMigrationManager creates a new migration manager
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func NewMigrationManager(db *sql.DB) *MigrationManager {
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return &MigrationManager{db: db}
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}
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// GetCurrentVersion returns the current schema version
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func (m *MigrationManager) GetCurrentVersion() (int, error) {
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// First, ensure the migrations table exists
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_, err := m.db.Exec(`
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CREATE TABLE IF NOT EXISTS schema_migrations (
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version INTEGER PRIMARY KEY,
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description TEXT NOT NULL,
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applied_at INTEGER NOT NULL
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)
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`)
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if err != nil {
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return 0, fmt.Errorf("failed to create migrations table: %w", err)
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}
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var version int
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err = m.db.QueryRow("SELECT MAX(version) FROM schema_migrations").Scan(&version)
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if err == sql.ErrNoRows {
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return 0, nil // No migrations applied yet
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}
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if err != nil {
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return 0, fmt.Errorf("failed to get current version: %w", err)
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}
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return version, nil
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}
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// ApplyMigrations applies all pending migrations
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func (m *MigrationManager) ApplyMigrations() error {
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currentVersion, err := m.GetCurrentVersion()
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if err != nil {
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return fmt.Errorf("failed to get current version: %w", err)
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}
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migrations := GetMigrations()
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for _, migration := range migrations {
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if migration.Version <= currentVersion {
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continue // Already applied
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}
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fmt.Printf("Applying migration %d: %s\n", migration.Version, migration.Description)
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// Begin transaction
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tx, err := m.db.Begin()
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if err != nil {
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return fmt.Errorf("failed to begin transaction for migration %d: %w", migration.Version, err)
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}
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// Execute migration SQL
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_, err = tx.Exec(migration.SQL)
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if err != nil {
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tx.Rollback()
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return fmt.Errorf("failed to execute migration %d: %w", migration.Version, err)
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}
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// Record migration as applied
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_, err = tx.Exec(
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"INSERT INTO schema_migrations (version, description, applied_at) VALUES (?, ?, ?)",
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migration.Version,
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migration.Description,
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getCurrentTimestamp(),
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)
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if err != nil {
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tx.Rollback()
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return fmt.Errorf("failed to record migration %d: %w", migration.Version, err)
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}
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// Commit transaction
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err = tx.Commit()
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if err != nil {
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return fmt.Errorf("failed to commit migration %d: %w", migration.Version, err)
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}
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fmt.Printf("Successfully applied migration %d\n", migration.Version)
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}
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return nil
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}
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// RollbackMigration rolls back a specific migration (if supported)
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func (m *MigrationManager) RollbackMigration(version int) error {
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// TODO: Implement rollback functionality
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// ASSUMPTION: For now, rollbacks are not supported as they require careful planning
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return fmt.Errorf("migration rollbacks not implemented - manual intervention required")
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}
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// GetAppliedMigrations returns a list of all applied migrations
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func (m *MigrationManager) GetAppliedMigrations() ([]AppliedMigration, error) {
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rows, err := m.db.Query(`
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SELECT version, description, applied_at
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FROM schema_migrations
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ORDER BY version
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`)
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if err != nil {
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return nil, fmt.Errorf("failed to query applied migrations: %w", err)
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}
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defer rows.Close()
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var migrations []AppliedMigration
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for rows.Next() {
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var migration AppliedMigration
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err := rows.Scan(&migration.Version, &migration.Description, &migration.AppliedAt)
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if err != nil {
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return nil, fmt.Errorf("failed to scan migration: %w", err)
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}
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migrations = append(migrations, migration)
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}
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return migrations, nil
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}
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// ValidateSchema validates that the database schema is up to date
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func (m *MigrationManager) ValidateSchema() error {
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currentVersion, err := m.GetCurrentVersion()
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if err != nil {
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return fmt.Errorf("failed to get current version: %w", err)
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}
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migrations := GetMigrations()
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if len(migrations) == 0 {
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return nil
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}
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latestVersion := migrations[len(migrations)-1].Version
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if currentVersion < latestVersion {
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return fmt.Errorf("schema is outdated: current version %d, latest version %d", currentVersion, latestVersion)
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}
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return nil
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}
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// AppliedMigration represents a migration that has been applied
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type AppliedMigration struct {
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Version int
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Description string
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AppliedAt int64
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}
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|
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// getCurrentTimestamp returns the current timestamp in nanoseconds
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func getCurrentTimestamp() int64 {
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return time.Now().UnixNano()
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}
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|
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// CreateDatabase creates and initializes a new offset storage database
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func CreateDatabase(dbPath string) (*sql.DB, error) {
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// TODO: Support different database types (PostgreSQL, MySQL, etc.)
|
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// ASSUMPTION: Using SQLite for now, can be extended for other databases
|
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|
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db, err := sql.Open("sqlite3", dbPath)
|
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if err != nil {
|
||||
return nil, fmt.Errorf("failed to open database: %w", err)
|
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}
|
||||
|
||||
// Configure SQLite for better performance
|
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pragmas := []string{
|
||||
"PRAGMA journal_mode=WAL", // Write-Ahead Logging for better concurrency
|
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"PRAGMA synchronous=NORMAL", // Balance between safety and performance
|
||||
"PRAGMA cache_size=10000", // Increase cache size
|
||||
"PRAGMA foreign_keys=ON", // Enable foreign key constraints
|
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"PRAGMA temp_store=MEMORY", // Store temporary tables in memory
|
||||
}
|
||||
|
||||
for _, pragma := range pragmas {
|
||||
_, err := db.Exec(pragma)
|
||||
if err != nil {
|
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db.Close()
|
||||
return nil, fmt.Errorf("failed to set pragma %s: %w", pragma, err)
|
||||
}
|
||||
}
|
||||
|
||||
// Apply migrations
|
||||
migrationManager := NewMigrationManager(db)
|
||||
err = migrationManager.ApplyMigrations()
|
||||
if err != nil {
|
||||
db.Close()
|
||||
return nil, fmt.Errorf("failed to apply migrations: %w", err)
|
||||
}
|
||||
|
||||
return db, nil
|
||||
}
|
||||
|
||||
// BackupDatabase creates a backup of the offset storage database
|
||||
func BackupDatabase(sourceDB *sql.DB, backupPath string) error {
|
||||
// TODO: Implement database backup functionality
|
||||
// ASSUMPTION: This would use database-specific backup mechanisms
|
||||
return fmt.Errorf("database backup not implemented yet")
|
||||
}
|
||||
|
||||
// RestoreDatabase restores a database from a backup
|
||||
func RestoreDatabase(backupPath, targetPath string) error {
|
||||
// TODO: Implement database restore functionality
|
||||
// ASSUMPTION: This would use database-specific restore mechanisms
|
||||
return fmt.Errorf("database restore not implemented yet")
|
||||
}
|
||||
@@ -0,0 +1,391 @@
|
||||
package offset
|
||||
|
||||
import (
|
||||
"database/sql"
|
||||
"fmt"
|
||||
"time"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
)
|
||||
|
||||
// OffsetEntry represents a mapping between Kafka offset and SMQ timestamp
|
||||
type OffsetEntry struct {
|
||||
KafkaOffset int64
|
||||
SMQTimestamp int64
|
||||
MessageSize int32
|
||||
}
|
||||
|
||||
// SQLOffsetStorage implements OffsetStorage using SQL database with _index column
|
||||
type SQLOffsetStorage struct {
|
||||
db *sql.DB
|
||||
}
|
||||
|
||||
// NewSQLOffsetStorage creates a new SQL-based offset storage
|
||||
func NewSQLOffsetStorage(db *sql.DB) (*SQLOffsetStorage, error) {
|
||||
storage := &SQLOffsetStorage{db: db}
|
||||
|
||||
// Initialize database schema
|
||||
if err := storage.initializeSchema(); err != nil {
|
||||
return nil, fmt.Errorf("failed to initialize schema: %w", err)
|
||||
}
|
||||
|
||||
return storage, nil
|
||||
}
|
||||
|
||||
// initializeSchema creates the necessary tables for offset storage
|
||||
func (s *SQLOffsetStorage) initializeSchema() error {
|
||||
// TODO: Create offset storage tables with _index as hidden column
|
||||
// ASSUMPTION: Using SQLite-compatible syntax, may need adaptation for other databases
|
||||
|
||||
queries := []string{
|
||||
// Partition offset checkpoints table
|
||||
// TODO: Add _index as computed column when supported by database
|
||||
// ASSUMPTION: Using regular columns for now, _index concept preserved for future enhancement
|
||||
`CREATE TABLE IF NOT EXISTS partition_offset_checkpoints (
|
||||
partition_key TEXT PRIMARY KEY,
|
||||
ring_size INTEGER NOT NULL,
|
||||
range_start INTEGER NOT NULL,
|
||||
range_stop INTEGER NOT NULL,
|
||||
unix_time_ns INTEGER NOT NULL,
|
||||
checkpoint_offset INTEGER NOT NULL,
|
||||
updated_at INTEGER NOT NULL
|
||||
)`,
|
||||
|
||||
// Offset mappings table for detailed tracking
|
||||
// TODO: Add _index as computed column when supported by database
|
||||
`CREATE TABLE IF NOT EXISTS offset_mappings (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
partition_key TEXT NOT NULL,
|
||||
kafka_offset INTEGER NOT NULL,
|
||||
smq_timestamp INTEGER NOT NULL,
|
||||
message_size INTEGER NOT NULL,
|
||||
created_at INTEGER NOT NULL,
|
||||
UNIQUE(partition_key, kafka_offset)
|
||||
)`,
|
||||
|
||||
// Indexes for performance
|
||||
`CREATE INDEX IF NOT EXISTS idx_partition_offset_checkpoints_partition
|
||||
ON partition_offset_checkpoints(partition_key)`,
|
||||
|
||||
`CREATE INDEX IF NOT EXISTS idx_offset_mappings_partition_offset
|
||||
ON offset_mappings(partition_key, kafka_offset)`,
|
||||
|
||||
`CREATE INDEX IF NOT EXISTS idx_offset_mappings_timestamp
|
||||
ON offset_mappings(partition_key, smq_timestamp)`,
|
||||
}
|
||||
|
||||
for _, query := range queries {
|
||||
if _, err := s.db.Exec(query); err != nil {
|
||||
return fmt.Errorf("failed to execute schema query: %w", err)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// SaveCheckpoint saves the checkpoint for a partition
|
||||
func (s *SQLOffsetStorage) SaveCheckpoint(partition *schema_pb.Partition, offset int64) error {
|
||||
partitionKey := partitionKey(partition)
|
||||
now := time.Now().UnixNano()
|
||||
|
||||
// TODO: Use UPSERT for better performance
|
||||
// ASSUMPTION: SQLite REPLACE syntax, may need adaptation for other databases
|
||||
query := `
|
||||
REPLACE INTO partition_offset_checkpoints
|
||||
(partition_key, ring_size, range_start, range_stop, unix_time_ns, checkpoint_offset, updated_at)
|
||||
VALUES (?, ?, ?, ?, ?, ?, ?)
|
||||
`
|
||||
|
||||
_, err := s.db.Exec(query,
|
||||
partitionKey,
|
||||
partition.RingSize,
|
||||
partition.RangeStart,
|
||||
partition.RangeStop,
|
||||
partition.UnixTimeNs,
|
||||
offset,
|
||||
now,
|
||||
)
|
||||
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to save checkpoint: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// LoadCheckpoint loads the checkpoint for a partition
|
||||
func (s *SQLOffsetStorage) LoadCheckpoint(partition *schema_pb.Partition) (int64, error) {
|
||||
partitionKey := partitionKey(partition)
|
||||
|
||||
query := `
|
||||
SELECT checkpoint_offset
|
||||
FROM partition_offset_checkpoints
|
||||
WHERE partition_key = ?
|
||||
`
|
||||
|
||||
var checkpointOffset int64
|
||||
err := s.db.QueryRow(query, partitionKey).Scan(&checkpointOffset)
|
||||
|
||||
if err == sql.ErrNoRows {
|
||||
return -1, fmt.Errorf("no checkpoint found")
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
return -1, fmt.Errorf("failed to load checkpoint: %w", err)
|
||||
}
|
||||
|
||||
return checkpointOffset, nil
|
||||
}
|
||||
|
||||
// GetHighestOffset finds the highest offset in storage for a partition
|
||||
func (s *SQLOffsetStorage) GetHighestOffset(partition *schema_pb.Partition) (int64, error) {
|
||||
partitionKey := partitionKey(partition)
|
||||
|
||||
// TODO: Use _index column for efficient querying
|
||||
// ASSUMPTION: kafka_offset represents the sequential offset we're tracking
|
||||
query := `
|
||||
SELECT MAX(kafka_offset)
|
||||
FROM offset_mappings
|
||||
WHERE partition_key = ?
|
||||
`
|
||||
|
||||
var highestOffset sql.NullInt64
|
||||
err := s.db.QueryRow(query, partitionKey).Scan(&highestOffset)
|
||||
|
||||
if err != nil {
|
||||
return -1, fmt.Errorf("failed to get highest offset: %w", err)
|
||||
}
|
||||
|
||||
if !highestOffset.Valid {
|
||||
return -1, fmt.Errorf("no records found")
|
||||
}
|
||||
|
||||
return highestOffset.Int64, nil
|
||||
}
|
||||
|
||||
// SaveOffsetMapping stores an offset mapping (extends OffsetStorage interface)
|
||||
func (s *SQLOffsetStorage) SaveOffsetMapping(partitionKey string, kafkaOffset, smqTimestamp int64, size int32) error {
|
||||
now := time.Now().UnixNano()
|
||||
|
||||
// TODO: Handle duplicate key conflicts gracefully
|
||||
// ASSUMPTION: Using INSERT OR REPLACE for conflict resolution
|
||||
query := `
|
||||
INSERT OR REPLACE INTO offset_mappings
|
||||
(partition_key, kafka_offset, smq_timestamp, message_size, created_at)
|
||||
VALUES (?, ?, ?, ?, ?)
|
||||
`
|
||||
|
||||
_, err := s.db.Exec(query, partitionKey, kafkaOffset, smqTimestamp, size, now)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to save offset mapping: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// LoadOffsetMappings retrieves all offset mappings for a partition
|
||||
func (s *SQLOffsetStorage) LoadOffsetMappings(partitionKey string) ([]OffsetEntry, error) {
|
||||
// TODO: Add pagination for large result sets
|
||||
// ASSUMPTION: Loading all mappings for now, should be paginated in production
|
||||
query := `
|
||||
SELECT kafka_offset, smq_timestamp, message_size
|
||||
FROM offset_mappings
|
||||
WHERE partition_key = ?
|
||||
ORDER BY kafka_offset ASC
|
||||
`
|
||||
|
||||
rows, err := s.db.Query(query, partitionKey)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to query offset mappings: %w", err)
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
var entries []OffsetEntry
|
||||
for rows.Next() {
|
||||
var entry OffsetEntry
|
||||
err := rows.Scan(&entry.KafkaOffset, &entry.SMQTimestamp, &entry.MessageSize)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to scan offset entry: %w", err)
|
||||
}
|
||||
entries = append(entries, entry)
|
||||
}
|
||||
|
||||
if err := rows.Err(); err != nil {
|
||||
return nil, fmt.Errorf("error iterating offset mappings: %w", err)
|
||||
}
|
||||
|
||||
return entries, nil
|
||||
}
|
||||
|
||||
// GetOffsetMappingsByRange retrieves offset mappings within a specific range
|
||||
func (s *SQLOffsetStorage) GetOffsetMappingsByRange(partitionKey string, startOffset, endOffset int64) ([]OffsetEntry, error) {
|
||||
// TODO: Use _index column for efficient range queries
|
||||
query := `
|
||||
SELECT kafka_offset, smq_timestamp, message_size
|
||||
FROM offset_mappings
|
||||
WHERE partition_key = ? AND kafka_offset >= ? AND kafka_offset <= ?
|
||||
ORDER BY kafka_offset ASC
|
||||
`
|
||||
|
||||
rows, err := s.db.Query(query, partitionKey, startOffset, endOffset)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to query offset range: %w", err)
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
var entries []OffsetEntry
|
||||
for rows.Next() {
|
||||
var entry OffsetEntry
|
||||
err := rows.Scan(&entry.KafkaOffset, &entry.SMQTimestamp, &entry.MessageSize)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to scan offset entry: %w", err)
|
||||
}
|
||||
entries = append(entries, entry)
|
||||
}
|
||||
|
||||
return entries, nil
|
||||
}
|
||||
|
||||
// GetPartitionStats returns statistics about a partition's offset usage
|
||||
func (s *SQLOffsetStorage) GetPartitionStats(partitionKey string) (*PartitionStats, error) {
|
||||
query := `
|
||||
SELECT
|
||||
COUNT(*) as record_count,
|
||||
MIN(kafka_offset) as earliest_offset,
|
||||
MAX(kafka_offset) as latest_offset,
|
||||
SUM(message_size) as total_size,
|
||||
MIN(created_at) as first_record_time,
|
||||
MAX(created_at) as last_record_time
|
||||
FROM offset_mappings
|
||||
WHERE partition_key = ?
|
||||
`
|
||||
|
||||
var stats PartitionStats
|
||||
var earliestOffset, latestOffset sql.NullInt64
|
||||
var totalSize sql.NullInt64
|
||||
var firstRecordTime, lastRecordTime sql.NullInt64
|
||||
|
||||
err := s.db.QueryRow(query, partitionKey).Scan(
|
||||
&stats.RecordCount,
|
||||
&earliestOffset,
|
||||
&latestOffset,
|
||||
&totalSize,
|
||||
&firstRecordTime,
|
||||
&lastRecordTime,
|
||||
)
|
||||
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to get partition stats: %w", err)
|
||||
}
|
||||
|
||||
stats.PartitionKey = partitionKey
|
||||
|
||||
if earliestOffset.Valid {
|
||||
stats.EarliestOffset = earliestOffset.Int64
|
||||
} else {
|
||||
stats.EarliestOffset = -1
|
||||
}
|
||||
|
||||
if latestOffset.Valid {
|
||||
stats.LatestOffset = latestOffset.Int64
|
||||
stats.HighWaterMark = latestOffset.Int64 + 1
|
||||
} else {
|
||||
stats.LatestOffset = -1
|
||||
stats.HighWaterMark = 0
|
||||
}
|
||||
|
||||
if firstRecordTime.Valid {
|
||||
stats.FirstRecordTime = firstRecordTime.Int64
|
||||
}
|
||||
|
||||
if lastRecordTime.Valid {
|
||||
stats.LastRecordTime = lastRecordTime.Int64
|
||||
}
|
||||
|
||||
if totalSize.Valid {
|
||||
stats.TotalSize = totalSize.Int64
|
||||
}
|
||||
|
||||
return &stats, nil
|
||||
}
|
||||
|
||||
// CleanupOldMappings removes offset mappings older than the specified time
|
||||
func (s *SQLOffsetStorage) CleanupOldMappings(olderThanNs int64) error {
|
||||
// TODO: Add configurable cleanup policies
|
||||
// ASSUMPTION: Simple time-based cleanup, could be enhanced with retention policies
|
||||
query := `
|
||||
DELETE FROM offset_mappings
|
||||
WHERE created_at < ?
|
||||
`
|
||||
|
||||
result, err := s.db.Exec(query, olderThanNs)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to cleanup old mappings: %w", err)
|
||||
}
|
||||
|
||||
rowsAffected, _ := result.RowsAffected()
|
||||
if rowsAffected > 0 {
|
||||
// Log cleanup activity
|
||||
fmt.Printf("Cleaned up %d old offset mappings\n", rowsAffected)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Close closes the database connection
|
||||
func (s *SQLOffsetStorage) Close() error {
|
||||
if s.db != nil {
|
||||
return s.db.Close()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// PartitionStats provides statistics about a partition's offset usage
|
||||
type PartitionStats struct {
|
||||
PartitionKey string
|
||||
RecordCount int64
|
||||
EarliestOffset int64
|
||||
LatestOffset int64
|
||||
HighWaterMark int64
|
||||
TotalSize int64
|
||||
FirstRecordTime int64
|
||||
LastRecordTime int64
|
||||
}
|
||||
|
||||
// GetAllPartitions returns a list of all partitions with offset data
|
||||
func (s *SQLOffsetStorage) GetAllPartitions() ([]string, error) {
|
||||
query := `
|
||||
SELECT DISTINCT partition_key
|
||||
FROM offset_mappings
|
||||
ORDER BY partition_key
|
||||
`
|
||||
|
||||
rows, err := s.db.Query(query)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to get all partitions: %w", err)
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
var partitions []string
|
||||
for rows.Next() {
|
||||
var partitionKey string
|
||||
if err := rows.Scan(&partitionKey); err != nil {
|
||||
return nil, fmt.Errorf("failed to scan partition key: %w", err)
|
||||
}
|
||||
partitions = append(partitions, partitionKey)
|
||||
}
|
||||
|
||||
return partitions, nil
|
||||
}
|
||||
|
||||
// Vacuum performs database maintenance operations
|
||||
func (s *SQLOffsetStorage) Vacuum() error {
|
||||
// TODO: Add database-specific optimization commands
|
||||
// ASSUMPTION: SQLite VACUUM command, may need adaptation for other databases
|
||||
_, err := s.db.Exec("VACUUM")
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to vacuum database: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
@@ -0,0 +1,516 @@
|
||||
package offset
|
||||
|
||||
import (
|
||||
"database/sql"
|
||||
"os"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
_ "github.com/mattn/go-sqlite3" // SQLite driver
|
||||
)
|
||||
|
||||
func createTestDB(t *testing.T) *sql.DB {
|
||||
// Create temporary database file
|
||||
tmpFile, err := os.CreateTemp("", "offset_test_*.db")
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create temp database file: %v", err)
|
||||
}
|
||||
tmpFile.Close()
|
||||
|
||||
// Clean up the file when test completes
|
||||
t.Cleanup(func() {
|
||||
os.Remove(tmpFile.Name())
|
||||
})
|
||||
|
||||
db, err := sql.Open("sqlite3", tmpFile.Name())
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to open database: %v", err)
|
||||
}
|
||||
|
||||
t.Cleanup(func() {
|
||||
db.Close()
|
||||
})
|
||||
|
||||
return db
|
||||
}
|
||||
|
||||
func createTestPartitionForSQL() *schema_pb.Partition {
|
||||
return &schema_pb.Partition{
|
||||
RingSize: 1024,
|
||||
RangeStart: 0,
|
||||
RangeStop: 31,
|
||||
UnixTimeNs: time.Now().UnixNano(),
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_InitializeSchema(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
// Verify tables were created
|
||||
tables := []string{
|
||||
"partition_offset_checkpoints",
|
||||
"offset_mappings",
|
||||
}
|
||||
|
||||
for _, table := range tables {
|
||||
var count int
|
||||
err := db.QueryRow("SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name=?", table).Scan(&count)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to check table %s: %v", table, err)
|
||||
}
|
||||
|
||||
if count != 1 {
|
||||
t.Errorf("Table %s was not created", table)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_SaveLoadCheckpoint(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
partition := createTestPartitionForSQL()
|
||||
|
||||
// Test saving checkpoint
|
||||
err = storage.SaveCheckpoint(partition, 100)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to save checkpoint: %v", err)
|
||||
}
|
||||
|
||||
// Test loading checkpoint
|
||||
checkpoint, err := storage.LoadCheckpoint(partition)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to load checkpoint: %v", err)
|
||||
}
|
||||
|
||||
if checkpoint != 100 {
|
||||
t.Errorf("Expected checkpoint 100, got %d", checkpoint)
|
||||
}
|
||||
|
||||
// Test updating checkpoint
|
||||
err = storage.SaveCheckpoint(partition, 200)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to update checkpoint: %v", err)
|
||||
}
|
||||
|
||||
checkpoint, err = storage.LoadCheckpoint(partition)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to load updated checkpoint: %v", err)
|
||||
}
|
||||
|
||||
if checkpoint != 200 {
|
||||
t.Errorf("Expected updated checkpoint 200, got %d", checkpoint)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_LoadCheckpointNotFound(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
partition := createTestPartitionForSQL()
|
||||
|
||||
// Test loading non-existent checkpoint
|
||||
_, err = storage.LoadCheckpoint(partition)
|
||||
if err == nil {
|
||||
t.Error("Expected error for non-existent checkpoint")
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_SaveLoadOffsetMappings(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
partition := createTestPartitionForSQL()
|
||||
partitionKey := partitionKey(partition)
|
||||
|
||||
// Save multiple offset mappings
|
||||
mappings := []struct {
|
||||
offset int64
|
||||
timestamp int64
|
||||
size int32
|
||||
}{
|
||||
{0, 1000, 100},
|
||||
{1, 2000, 150},
|
||||
{2, 3000, 200},
|
||||
}
|
||||
|
||||
for _, mapping := range mappings {
|
||||
err := storage.SaveOffsetMapping(partitionKey, mapping.offset, mapping.timestamp, mapping.size)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to save offset mapping: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Load offset mappings
|
||||
entries, err := storage.LoadOffsetMappings(partitionKey)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to load offset mappings: %v", err)
|
||||
}
|
||||
|
||||
if len(entries) != len(mappings) {
|
||||
t.Errorf("Expected %d entries, got %d", len(mappings), len(entries))
|
||||
}
|
||||
|
||||
// Verify entries are sorted by offset
|
||||
for i, entry := range entries {
|
||||
expected := mappings[i]
|
||||
if entry.KafkaOffset != expected.offset {
|
||||
t.Errorf("Entry %d: expected offset %d, got %d", i, expected.offset, entry.KafkaOffset)
|
||||
}
|
||||
if entry.SMQTimestamp != expected.timestamp {
|
||||
t.Errorf("Entry %d: expected timestamp %d, got %d", i, expected.timestamp, entry.SMQTimestamp)
|
||||
}
|
||||
if entry.MessageSize != expected.size {
|
||||
t.Errorf("Entry %d: expected size %d, got %d", i, expected.size, entry.MessageSize)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_GetHighestOffset(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
partition := createTestPartitionForSQL()
|
||||
partitionKey := partitionKey(partition)
|
||||
|
||||
// Test empty partition
|
||||
_, err = storage.GetHighestOffset(partition)
|
||||
if err == nil {
|
||||
t.Error("Expected error for empty partition")
|
||||
}
|
||||
|
||||
// Add some offset mappings
|
||||
offsets := []int64{5, 1, 3, 2, 4}
|
||||
for _, offset := range offsets {
|
||||
err := storage.SaveOffsetMapping(partitionKey, offset, offset*1000, 100)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to save offset mapping: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Get highest offset
|
||||
highest, err := storage.GetHighestOffset(partition)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get highest offset: %v", err)
|
||||
}
|
||||
|
||||
if highest != 5 {
|
||||
t.Errorf("Expected highest offset 5, got %d", highest)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_GetOffsetMappingsByRange(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
partition := createTestPartitionForSQL()
|
||||
partitionKey := partitionKey(partition)
|
||||
|
||||
// Add offset mappings
|
||||
for i := int64(0); i < 10; i++ {
|
||||
err := storage.SaveOffsetMapping(partitionKey, i, i*1000, 100)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to save offset mapping: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Get range of offsets
|
||||
entries, err := storage.GetOffsetMappingsByRange(partitionKey, 3, 7)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get offset range: %v", err)
|
||||
}
|
||||
|
||||
expectedCount := 5 // offsets 3, 4, 5, 6, 7
|
||||
if len(entries) != expectedCount {
|
||||
t.Errorf("Expected %d entries, got %d", expectedCount, len(entries))
|
||||
}
|
||||
|
||||
// Verify range
|
||||
for i, entry := range entries {
|
||||
expectedOffset := int64(3 + i)
|
||||
if entry.KafkaOffset != expectedOffset {
|
||||
t.Errorf("Entry %d: expected offset %d, got %d", i, expectedOffset, entry.KafkaOffset)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_GetPartitionStats(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
partition := createTestPartitionForSQL()
|
||||
partitionKey := partitionKey(partition)
|
||||
|
||||
// Test empty partition stats
|
||||
stats, err := storage.GetPartitionStats(partitionKey)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get empty partition stats: %v", err)
|
||||
}
|
||||
|
||||
if stats.RecordCount != 0 {
|
||||
t.Errorf("Expected record count 0, got %d", stats.RecordCount)
|
||||
}
|
||||
|
||||
if stats.EarliestOffset != -1 {
|
||||
t.Errorf("Expected earliest offset -1, got %d", stats.EarliestOffset)
|
||||
}
|
||||
|
||||
// Add some data
|
||||
sizes := []int32{100, 150, 200}
|
||||
for i, size := range sizes {
|
||||
err := storage.SaveOffsetMapping(partitionKey, int64(i), int64(i*1000), size)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to save offset mapping: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Get stats with data
|
||||
stats, err = storage.GetPartitionStats(partitionKey)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get partition stats: %v", err)
|
||||
}
|
||||
|
||||
if stats.RecordCount != 3 {
|
||||
t.Errorf("Expected record count 3, got %d", stats.RecordCount)
|
||||
}
|
||||
|
||||
if stats.EarliestOffset != 0 {
|
||||
t.Errorf("Expected earliest offset 0, got %d", stats.EarliestOffset)
|
||||
}
|
||||
|
||||
if stats.LatestOffset != 2 {
|
||||
t.Errorf("Expected latest offset 2, got %d", stats.LatestOffset)
|
||||
}
|
||||
|
||||
if stats.HighWaterMark != 3 {
|
||||
t.Errorf("Expected high water mark 3, got %d", stats.HighWaterMark)
|
||||
}
|
||||
|
||||
expectedTotalSize := int64(100 + 150 + 200)
|
||||
if stats.TotalSize != expectedTotalSize {
|
||||
t.Errorf("Expected total size %d, got %d", expectedTotalSize, stats.TotalSize)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_GetAllPartitions(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
// Test empty database
|
||||
partitions, err := storage.GetAllPartitions()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get all partitions: %v", err)
|
||||
}
|
||||
|
||||
if len(partitions) != 0 {
|
||||
t.Errorf("Expected 0 partitions, got %d", len(partitions))
|
||||
}
|
||||
|
||||
// Add data for multiple partitions
|
||||
partition1 := createTestPartitionForSQL()
|
||||
partition2 := &schema_pb.Partition{
|
||||
RingSize: 1024,
|
||||
RangeStart: 32,
|
||||
RangeStop: 63,
|
||||
UnixTimeNs: time.Now().UnixNano(),
|
||||
}
|
||||
|
||||
partitionKey1 := partitionKey(partition1)
|
||||
partitionKey2 := partitionKey(partition2)
|
||||
|
||||
storage.SaveOffsetMapping(partitionKey1, 0, 1000, 100)
|
||||
storage.SaveOffsetMapping(partitionKey2, 0, 2000, 150)
|
||||
|
||||
// Get all partitions
|
||||
partitions, err = storage.GetAllPartitions()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to get all partitions: %v", err)
|
||||
}
|
||||
|
||||
if len(partitions) != 2 {
|
||||
t.Errorf("Expected 2 partitions, got %d", len(partitions))
|
||||
}
|
||||
|
||||
// Verify partition keys are present
|
||||
partitionMap := make(map[string]bool)
|
||||
for _, p := range partitions {
|
||||
partitionMap[p] = true
|
||||
}
|
||||
|
||||
if !partitionMap[partitionKey1] {
|
||||
t.Errorf("Partition key %s not found", partitionKey1)
|
||||
}
|
||||
|
||||
if !partitionMap[partitionKey2] {
|
||||
t.Errorf("Partition key %s not found", partitionKey2)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_CleanupOldMappings(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
partition := createTestPartitionForSQL()
|
||||
partitionKey := partitionKey(partition)
|
||||
|
||||
// Add mappings with different timestamps
|
||||
now := time.Now().UnixNano()
|
||||
|
||||
// Add old mapping by directly inserting with old timestamp
|
||||
oldTime := now - (24 * time.Hour).Nanoseconds() // 24 hours ago
|
||||
_, err = db.Exec(`
|
||||
INSERT INTO offset_mappings
|
||||
(partition_key, kafka_offset, smq_timestamp, message_size, created_at)
|
||||
VALUES (?, ?, ?, ?, ?)
|
||||
`, partitionKey, 0, oldTime, 100, oldTime)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to insert old mapping: %v", err)
|
||||
}
|
||||
|
||||
// Add recent mapping
|
||||
storage.SaveOffsetMapping(partitionKey, 1, now, 150)
|
||||
|
||||
// Verify both mappings exist
|
||||
entries, err := storage.LoadOffsetMappings(partitionKey)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to load mappings: %v", err)
|
||||
}
|
||||
|
||||
if len(entries) != 2 {
|
||||
t.Errorf("Expected 2 mappings before cleanup, got %d", len(entries))
|
||||
}
|
||||
|
||||
// Cleanup old mappings (older than 12 hours)
|
||||
cutoffTime := now - (12 * time.Hour).Nanoseconds()
|
||||
err = storage.CleanupOldMappings(cutoffTime)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to cleanup old mappings: %v", err)
|
||||
}
|
||||
|
||||
// Verify only recent mapping remains
|
||||
entries, err = storage.LoadOffsetMappings(partitionKey)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to load mappings after cleanup: %v", err)
|
||||
}
|
||||
|
||||
if len(entries) != 1 {
|
||||
t.Errorf("Expected 1 mapping after cleanup, got %d", len(entries))
|
||||
}
|
||||
|
||||
if entries[0].KafkaOffset != 1 {
|
||||
t.Errorf("Expected remaining mapping offset 1, got %d", entries[0].KafkaOffset)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_Vacuum(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
// Vacuum should not fail on empty database
|
||||
err = storage.Vacuum()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to vacuum database: %v", err)
|
||||
}
|
||||
|
||||
// Add some data and vacuum again
|
||||
partition := createTestPartitionForSQL()
|
||||
partitionKey := partitionKey(partition)
|
||||
storage.SaveOffsetMapping(partitionKey, 0, 1000, 100)
|
||||
|
||||
err = storage.Vacuum()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to vacuum database with data: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSQLOffsetStorage_ConcurrentAccess(t *testing.T) {
|
||||
db := createTestDB(t)
|
||||
storage, err := NewSQLOffsetStorage(db)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create SQL storage: %v", err)
|
||||
}
|
||||
defer storage.Close()
|
||||
|
||||
partition := createTestPartitionForSQL()
|
||||
partitionKey := partitionKey(partition)
|
||||
|
||||
// Test concurrent writes
|
||||
const numGoroutines = 10
|
||||
const offsetsPerGoroutine = 10
|
||||
|
||||
done := make(chan bool, numGoroutines)
|
||||
|
||||
for i := 0; i < numGoroutines; i++ {
|
||||
go func(goroutineID int) {
|
||||
defer func() { done <- true }()
|
||||
|
||||
for j := 0; j < offsetsPerGoroutine; j++ {
|
||||
offset := int64(goroutineID*offsetsPerGoroutine + j)
|
||||
err := storage.SaveOffsetMapping(partitionKey, offset, offset*1000, 100)
|
||||
if err != nil {
|
||||
t.Errorf("Failed to save offset mapping %d: %v", offset, err)
|
||||
return
|
||||
}
|
||||
}
|
||||
}(i)
|
||||
}
|
||||
|
||||
// Wait for all goroutines to complete
|
||||
for i := 0; i < numGoroutines; i++ {
|
||||
<-done
|
||||
}
|
||||
|
||||
// Verify all mappings were saved
|
||||
entries, err := storage.LoadOffsetMappings(partitionKey)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to load mappings: %v", err)
|
||||
}
|
||||
|
||||
expectedCount := numGoroutines * offsetsPerGoroutine
|
||||
if len(entries) != expectedCount {
|
||||
t.Errorf("Expected %d mappings, got %d", expectedCount, len(entries))
|
||||
}
|
||||
}
|
||||
@@ -100,31 +100,4 @@ func (s *InMemoryOffsetStorage) Clear() {
|
||||
s.records = make(map[string]map[int64]bool)
|
||||
}
|
||||
|
||||
// SQLOffsetStorage provides a SQL-based implementation of OffsetStorage
|
||||
type SQLOffsetStorage struct {
|
||||
// TODO: Implement SQL-based storage with _index column
|
||||
// This will be implemented in a later phase
|
||||
}
|
||||
|
||||
// NewSQLOffsetStorage creates a new SQL-based storage
|
||||
func NewSQLOffsetStorage() *SQLOffsetStorage {
|
||||
return &SQLOffsetStorage{}
|
||||
}
|
||||
|
||||
// SaveCheckpoint saves the checkpoint for a partition
|
||||
func (s *SQLOffsetStorage) SaveCheckpoint(partition *schema_pb.Partition, offset int64) error {
|
||||
// TODO: Implement SQL checkpoint storage
|
||||
return fmt.Errorf("SQL storage not implemented yet")
|
||||
}
|
||||
|
||||
// LoadCheckpoint loads the checkpoint for a partition
|
||||
func (s *SQLOffsetStorage) LoadCheckpoint(partition *schema_pb.Partition) (int64, error) {
|
||||
// TODO: Implement SQL checkpoint loading
|
||||
return -1, fmt.Errorf("SQL storage not implemented yet")
|
||||
}
|
||||
|
||||
// GetHighestOffset finds the highest offset in storage for a partition
|
||||
func (s *SQLOffsetStorage) GetHighestOffset(partition *schema_pb.Partition) (int64, error) {
|
||||
// TODO: Implement SQL query to find highest _index value
|
||||
return -1, fmt.Errorf("SQL storage not implemented yet")
|
||||
}
|
||||
// Note: SQLOffsetStorage is now implemented in sql_storage.go
|
||||
|
||||
Reference in New Issue
Block a user