Commit Graph

3 Commits

Author SHA1 Message Date
Chris Lu
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
Chris Lu
13dcf445a4 Fix maintenance worker panic and add EC integration tests (#8068)
* Fix nil pointer panic in maintenance worker when receiving empty task assignment

When a worker requests a task and none are available, the admin server
sends an empty TaskAssignment message. The worker was attempting to log
the task details without checking if the TaskId was empty, causing a
nil pointer dereference when accessing taskAssign.Params.VolumeId.

This fix adds a check for empty TaskId before processing the assignment,
preventing worker crashes and improving stability in production environments.

* Add EC integration test for admin-worker maintenance system

Adds comprehensive integration test that verifies the end-to-end flow
of erasure coding maintenance tasks:
- Admin server detects volumes needing EC encoding
- Workers register and receive task assignments
- EC encoding is executed and verified in master topology
- File read-back validation confirms data integrity

The test uses unique absolute working directories for each worker to
prevent ID conflicts and ensure stable worker registration. Includes
proper cleanup and process management for reliable test execution.

* Improve maintenance system stability and task deduplication

- Add cross-type task deduplication to prevent concurrent maintenance
  operations on the same volume (EC, balance, vacuum)
- Implement HasAnyTask check in ActiveTopology for better coordination
- Increase RequestTask timeout from 5s to 30s to prevent unnecessary
  worker reconnections
- Add TaskTypeNone sentinel for generic task checks
- Update all task detectors to use HasAnyTask for conflict prevention
- Improve config persistence and schema handling

* Add GitHub Actions workflow for EC integration tests

Adds CI workflow that runs EC integration tests on push and pull requests
to master branch. The workflow:
- Triggers on changes to admin, worker, or test files
- Builds the weed binary
- Runs the EC integration test suite
- Uploads test logs as artifacts on failure for debugging

This ensures the maintenance system remains stable and worker-admin
integration is validated in CI.

* go version 1.24

* address comments

* Update maintenance_integration.go

* support seconds

* ec prioritize over balancing in tests
2026-01-20 15:07:43 -08:00
Chris Lu
891a2fb6eb Admin: misc improvements on admin server and workers. EC now works. (#7055)
* initial design

* added simulation as tests

* reorganized the codebase to move the simulation framework and tests into their own dedicated package

* integration test. ec worker task

* remove "enhanced" reference

* start master, volume servers, filer

Current Status
 Master: Healthy and running (port 9333)
 Filer: Healthy and running (port 8888)
 Volume Servers: All 6 servers running (ports 8080-8085)
🔄 Admin/Workers: Will start when dependencies are ready

* generate write load

* tasks are assigned

* admin start wtih grpc port. worker has its own working directory

* Update .gitignore

* working worker and admin. Task detection is not working yet.

* compiles, detection uses volumeSizeLimitMB from master

* compiles

* worker retries connecting to admin

* build and restart

* rendering pending tasks

* skip task ID column

* sticky worker id

* test canScheduleTaskNow

* worker reconnect to admin

* clean up logs

* worker register itself first

* worker can run ec work and report status

but:
1. one volume should not be repeatedly worked on.
2. ec shards needs to be distributed and source data should be deleted.

* move ec task logic

* listing ec shards

* local copy, ec. Need to distribute.

* ec is mostly working now

* distribution of ec shards needs improvement
* need configuration to enable ec

* show ec volumes

* interval field UI component

* rename

* integration test with vauuming

* garbage percentage threshold

* fix warning

* display ec shard sizes

* fix ec volumes list

* Update ui.go

* show default values

* ensure correct default value

* MaintenanceConfig use ConfigField

* use schema defined defaults

* config

* reduce duplication

* refactor to use BaseUIProvider

* each task register its schema

* checkECEncodingCandidate use ecDetector

* use vacuumDetector

* use volumeSizeLimitMB

* remove

remove

* remove unused

* refactor

* use new framework

* remove v2 reference

* refactor

* left menu can scroll now

* The maintenance manager was not being initialized when no data directory was configured for persistent storage.

* saving config

* Update task_config_schema_templ.go

* enable/disable tasks

* protobuf encoded task configurations

* fix system settings

* use ui component

* remove logs

* interface{} Reduction

* reduce interface{}

* reduce interface{}

* avoid from/to map

* reduce interface{}

* refactor

* keep it DRY

* added logging

* debug messages

* debug level

* debug

* show the log caller line

* use configured task policy

* log level

* handle admin heartbeat response

* Update worker.go

* fix EC rack and dc count

* Report task status to admin server

* fix task logging, simplify interface checking, use erasure_coding constants

* factor in empty volume server during task planning

* volume.list adds disk id

* track disk id also

* fix locking scheduled and manual scanning

* add active topology

* simplify task detector

* ec task completed, but shards are not showing up

* implement ec in ec_typed.go

* adjust log level

* dedup

* implementing ec copying shards and only ecx files

* use disk id when distributing ec shards

🎯 Planning: ActiveTopology creates DestinationPlan with specific TargetDisk
📦 Task Creation: maintenance_integration.go creates ECDestination with DiskId
🚀 Task Execution: EC task passes DiskId in VolumeEcShardsCopyRequest
💾 Volume Server: Receives disk_id and stores shards on specific disk (vs.store.Locations[req.DiskId])
📂 File System: EC shards and metadata land in the exact disk directory planned

* Delete original volume from all locations

* clean up existing shard locations

* local encoding and distributing

* Update docker/admin_integration/EC-TESTING-README.md

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* check volume id range

* simplify

* fix tests

* fix types

* clean up logs and tests

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
2025-07-30 12:38:03 -07:00