Commit Graph
6 Commits
Author SHA1 Message Date
Chris Lu 2d2fdeac3d volume: keep tier-uploaded volume reporting to master after volume.tier.upload (#10259)
volume: keep tier-uploaded volume reporting to master

A live volume.tier.upload removes the local .dat and swaps the data
backend to remote, but v.hasRemoteFile was only ever set when a volume
is loaded from disk, so the running volume kept it false. The phantom
.dat guard then saw fileCount>0, !HasRemoteFile, and a missing .dat, and
stopped reporting the volume to the master. The volume vanished from the
topology even though the upload succeeded and the data was in cloud
storage.

Set hasRemoteFile in LoadRemoteFile, the single point where a volume's
backend becomes remote, so it is true both on disk-scan load and after
an in-process tier upload. Route the backend reassignment through
SwapDataBackend so it happens under dataFileAccessLock, closing the old
backend and never racing the heartbeat's concurrent DataBackend read.
Make the field atomic since the heartbeat now reads it concurrently with
the tier-upload handler that writes it.
2026-07-07 23:00:22 -07:00
e3e02d3364 [CheckDisk]: implement disk health detection (#9560)
* [CheckDisk][GRPC]: implement MVP for disk health detection, added timeout for new grpc connections

* fix(volume): build disk health check on every platform

setDiskStatus only existed behind the statfs build tag, so disk.go failed
to compile on windows, openbsd, solaris, netbsd and plan9. Move the timeout
wrapper and failure tracking into the shared disk.go and have each platform's
fillInDiskStatus return an error, so every platform gets the same protection
from a stuck filesystem.

Also restore the uint64(fs.Bavail) cast: Bavail is int64 on freebsd, so the
unguarded multiply broke the freebsd build.

* fix(volume): keep one outstanding statfs probe per disk

A stuck statfs used to leave isChecking cleared by the timeout path, so the
next check spawned another goroutine while the previous one was still blocked
in the syscall, leaking one goroutine per minute on a hung disk. Clear the
flag only when statfs returns and treat an overlapping check as a failure, so
a hung filesystem keeps a single outstanding probe and still gets reported.

* fix(volume): assume disk available until the first health check

isDiskAvailable defaulted to false, and CollectHeartbeat skips locations that
are not available. A freshly started volume server would therefore omit every
volume from its first heartbeats until the async CheckDiskSpace ran, so the
master could briefly treat all of them as missing.

* fix(volume): label the disk error metric by data directory

The new gauge tagged the series with IdxDirectory while every neighbouring
resource gauge uses Directory, so the error series would not line up with them
in dashboards. Also log the underlying error instead of a generic message.

* test(volume): cover disk health success and repeated-failure paths

* fix(volume): make a healthy disk the zero-value default

Track the disk as isDiskUnavailable instead of isDiskAvailable so the safe
state is the zero value, matching isDiskSpaceLow. CollectHeartbeat only skips a
location once a check has actively marked it unavailable, so any DiskLocation
built without running CheckDiskSpace (tests, future call sites) still reports
its volumes instead of silently dropping them.

* feat(disk): detect degraded disks using IO latency probes

* feat(stats): introduce configurable disk I/O health probe with EWMA-based latency detection

* feat(disk): replace EWMA with sliding window algorithm for disk health detection and added user-friendly options

* feat(disk): improve disk health probing and recovery

* feat(volume): configure disk health checks via volume.toml

* fix(volume): Remove disk IO probe CLI options

---------

Co-authored-by: ptukha <ptukha@tochka.com>
Co-authored-by: Chris Lu <chris.lu@gmail.com>
2026-06-02 09:02:05 -07:00
f5c35240be Add volume dir tags and EC placement priority (#8472)
* Add volume dir tags to topology

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add preferred tag config for EC

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Prioritize EC destinations by tags

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add EC placement planner tag tests

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Refactor EC placement tests to reuse buildActiveTopology

Remove buildActiveTopologyWithDiskTags helper function and consolidate
tag setup inline in test cases. Tests now use UpdateTopology to apply
tags after topology creation, reusing the existing buildActiveTopology
function rather than duplicating its logic.

All tag scenario tests pass:
- TestECPlacementPlannerPrefersTaggedDisks
- TestECPlacementPlannerFallsBackWhenTagsInsufficient

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Consolidate normalizeTagList into shared util package

Extract normalizeTagList from three locations (volume.go,
detection.go, erasure_coding_handler.go) into new weed/util/tag.go
as exported NormalizeTagList function. Replace all duplicate
implementations with imports and calls to util.NormalizeTagList.

This improves code reuse and maintainability by centralizing
tag normalization logic.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add PreferredTags to EC config persistence

Add preferred_tags field to ErasureCodingTaskConfig protobuf with field
number 5. Update GetConfigSpec to include preferred_tags field in the
UI configuration schema. Add PreferredTags to ToTaskPolicy to serialize
config to protobuf. Add PreferredTags to FromTaskPolicy to deserialize
from protobuf with defensive copy to prevent external mutation.

This allows EC preferred tags to be persisted and restored across
worker restarts.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add defensive copy for Tags slice in DiskLocation

Copy the incoming tags slice in NewDiskLocation instead of storing
by reference. This prevents external callers from mutating the
DiskLocation.Tags slice after construction, improving encapsulation
and preventing unexpected changes to disk metadata.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add doc comment to buildCandidateSets method

Document the tiered candidate selection and fallback behavior. Explain
that for a planner with preferredTags, it accumulates disks matching
each tag in order into progressively larger tiers, emits a candidate
set once a tier reaches shardsNeeded, and finally falls back to the
full candidates set if preferred-tag tiers are insufficient.

This clarifies the intended semantics for future maintainers.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Apply final PR review fixes

1. Update parseVolumeTags to replicate single tag entry to all folders
   instead of leaving some folders with nil tags. This prevents nil
   pointer dereferences when processing folders without explicit tags.

2. Add defensive copy in ToTaskPolicy for PreferredTags slice to match
   the pattern used in FromTaskPolicy, preventing external mutation of
   the returned TaskPolicy.

3. Add clarifying comment in buildCandidateSets explaining that the
   shardsNeeded <= 0 branch is a defensive check for direct callers,
   since selectDestinations guarantees shardsNeeded > 0.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix nil pointer dereference in parseVolumeTags

Ensure all folder tags are initialized to either normalized tags or
empty slices, not nil. When multiple tag entries are provided and there
are more folders than entries, remaining folders now get empty slices
instead of nil, preventing nil pointer dereference in downstream code.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix NormalizeTagList to return empty slice instead of nil

Change NormalizeTagList to always return a non-nil slice. When all tags
are empty or whitespace after normalization, return an empty slice
instead of nil. This prevents nil pointer dereferences in downstream
code that expects a valid (possibly empty) slice.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add nil safety check for v.tags pointer

Add a safety check to handle the case where v.tags might be nil,
preventing a nil pointer dereference. If v.tags is nil, use an empty
string instead. This is defensive programming to prevent panics in
edge cases.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add volume.tags flag to weed server and weed mini commands

Add the volume.tags CLI option to both the 'weed server' and 'weed mini'
commands. This allows users to specify disk tags when running the
combined server modes, just like they can with 'weed volume'.

The flag uses the same format and description as the volume command:
comma-separated tag groups per data dir with ':' separators
(e.g. fast:ssd,archive).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <copilot@github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-03-01 10:22:00 -08:00
Ping QiuandClaude Opus 4.5 5c8de5e282 fix: close volumes and EC shards in tests for Windows compatibility (#8152)
* fix: close volumes and EC shards in tests to prevent Windows cleanup failures

On Windows, t.TempDir() cleanup fails when test files are still open
because Windows enforces mandatory file locking. Add defer v.Close(),
defer store.Close(), and EC volume cleanup to ensure all file handles
are released before temp directory removal.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* refactor: extract closeEcVolumes helper to reduce duplication

Address code review feedback by extracting the repeated EC volume
cleanup loop into a closeEcVolumes() helper function.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-28 17:21:14 -08:00
Chris Lu 5ed0b00fb9 Support separate volume server ID independent of RPC bind address (#7609)
* pb: add id field to Heartbeat message for stable volume server identification

This adds an 'id' field to the Heartbeat protobuf message that allows
volume servers to identify themselves independently of their IP:port address.

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487

* storage: add Id field to Store struct

Add Id field to Store struct and include it in CollectHeartbeat().
The Id field provides a stable volume server identity independent of IP:port.

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487

* topology: support id-based DataNode identification

Update GetOrCreateDataNode to accept an id parameter for stable node
identification. When id is provided, the DataNode can maintain its identity
even when its IP address changes (e.g., in Kubernetes pod reschedules).

For backward compatibility:
- If id is provided, use it as the node ID
- If id is empty, fall back to ip:port

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487

* volume: add -id flag for stable volume server identity

Add -id command line flag to volume server that allows specifying a stable
identifier independent of the IP address. This is useful for Kubernetes
deployments with hostPath volumes where pods can be rescheduled to different
nodes while the persisted data remains on the original node.

Usage: weed volume -id=node-1 -ip=10.0.0.1 ...

If -id is not specified, it defaults to ip:port for backward compatibility.

Fixes https://github.com/seaweedfs/seaweedfs/issues/7487

* server: add -volume.id flag to weed server command

Support the -volume.id flag in the all-in-one 'weed server' command,
consistent with the standalone 'weed volume' command.

Usage: weed server -volume.id=node-1 ...

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487

* topology: add test for id-based DataNode identification

Test the key scenarios:
1. Create DataNode with explicit id
2. Same id with different IP returns same DataNode (K8s reschedule)
3. IP/PublicUrl are updated when node reconnects with new address
4. Different id creates new DataNode
5. Empty id falls back to ip:port (backward compatibility)

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487

* pb: add address field to DataNodeInfo for proper node addressing

Previously, DataNodeInfo.Id was used as the node address, which worked
when Id was always ip:port. Now that Id can be an explicit string,
we need a separate Address field for connection purposes.

Changes:
- Add 'address' field to DataNodeInfo protobuf message
- Update ToDataNodeInfo() to populate the address field
- Update NewServerAddressFromDataNode() to use Address (with Id fallback)
- Fix LookupEcVolume to use dn.Url() instead of dn.Id()

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487

* fix: trim whitespace from volume server id and fix test

- Trim whitespace from -id flag to treat ' ' as empty
- Fix store_load_balancing_test.go to include id parameter in NewStore call

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487

* refactor: extract GetVolumeServerId to util package

Move the volume server ID determination logic to a shared utility function
to avoid code duplication between volume.go and rack.go.

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487

* fix: improve transition logic for legacy nodes

- Use exact ip:port match instead of net.SplitHostPort heuristic
- Update GrpcPort and PublicUrl during transition for consistency
- Remove unused net import

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487

* fix: add id normalization and address change logging

- Normalize id parameter at function boundary (trim whitespace)
- Log when DataNode IP:Port changes (helps debug K8s pod rescheduling)

Ref: https://github.com/seaweedfs/seaweedfs/issues/7487
2025-12-02 22:08:11 -08:00
Chris Lu ffd43218f6 create new volumes on less occupied disk locations (#7349)
* create new volumes on less occupied disk locations

* add unit tests

* address comments

* fixes
2025-10-20 16:11:29 -07:00