Commit Graph
4 Commits
Author SHA1 Message Date
Chris Lu 9a7cfaf371 admin: stop holding the shell admin lock across whole scheduler batches (#10290)
* admin: let waiting shell clients win the admin lock

The admin lock manager re-acquired the cluster shell lock immediately
after releasing it, while a waiting weed shell client only polls the
master once a second, so an operator could lose the race indefinitely.
Leave the lock free for slightly more than one poll interval before
re-acquiring, and once overlapping reference-counted holds have kept
the lock continuously held for over a minute, make new admin-side
acquires wait for a full release before piggybacking.

* admin/plugin: take the shell lock per detection and per job, not per batch

The default-lane scheduler acquired the cluster shell lock once and
held it across the whole pass: every due job type's detection plus all
of its dispatched jobs, each drained to completion. A manual weed
shell operation sharing that lock could stall behind the batch for up
to the extended execution window.

Hold the lock only while it protects something: around each detection
scan and around each dispatched job. Manual shell operations now wait
for at most one in-flight job. The admin UI detect+execute path stops
wrapping dispatch in an outer hold, since a nested acquire would
deadlock against the lock manager's fairness window; detection and
per-job dispatch take the lock themselves.

* admin/plugin: stop extending the dispatch window to the largest job estimate

When any proposal's estimated runtime exceeded the remaining
JobTypeMaxRuntime, the whole dispatch context was replaced with a
fresh one capped at eight hours, so a single balance backlog could
hold the default lane (and with it erasure_coding and vacuum
detection) for that long.

Keep the dispatch window at JobTypeMaxRuntime and instead detach each
started attempt onto its own estimated-runtime deadline. Large jobs
still get their full time once started; jobs not yet started when the
window closes are canceled and re-proposed by a later detection, so
sibling job types get a turn every window.

* worker/balance: re-check each planned move against the master before executing

A balance plan is computed at detection time, but the admin lock is
released between detection and execution, so a manual shell operation
can rearrange the volume in the gap. The task's own guards catch a
vanished source, but a target that gained a replica in the meantime
would be silently overwritten by VolumeCopy and the source delete
would then reduce the volume to a single copy.

Before executing each move, ask the master for the volume's current
locations (uncached) and skip the move if the volume has left the
source or the target already holds a replica. Skipped moves fail with
a stale-move error and the next detection replans them. Without master
addresses in the cluster context the check is skipped, preserving the
old behavior with older admins.

* admin: block re-acquire while the final lock release is in flight

Release dropped the manager mutex before calling ReleaseLock, so a
concurrent Acquire could see hold count zero and call RequestLock
while the locker still considered itself locked. That request no-ops,
leaving a hold with no live master lease. Track the in-flight release
and make Acquire wait for it.

Also normalize a nil release function from lock manager
implementations, and make the yield and fairness windows per-instance
fields so tests stop mutating globals.
2026-07-09 20:43:55 -07:00
Chris Lu e648c76bcf go fmt 2026-04-10 17:31:14 -07:00
Chris Lu a95b8396e4 plugin scheduler: run iceberg and lifecycle lanes concurrently (#8821)
* plugin scheduler: run iceberg and lifecycle lanes concurrently

The default lane serialises job types under a single admin lock
because volume-management operations share global state. Iceberg
and lifecycle lanes have no such constraint, so run each of their
job types independently in separate goroutines.

* Fix concurrent lane scheduler status

* plugin scheduler: address review feedback

- Extract collectDueJobTypes helper to deduplicate policy loading
  between locked and concurrent iteration paths.
- Use atomic.Bool instead of sync.Mutex for hadJobs in the concurrent
  path.
- Set lane loop state to "busy" before launching concurrent goroutines
  so the lane is not reported as idle while work runs.
- Convert TestLaneRequiresLock to table-driven style.
- Add TestRunLaneSchedulerIterationLockBehavior to verify the scheduler
  acquires the admin lock only for lanes that require it.
- Fix flaky TestGetLaneSchedulerStatusShowsActiveConcurrentLaneWork by
  not starting background scheduler goroutines that race with the
  direct runJobTypeIteration call.
2026-03-29 00:06:20 -07:00
Chris LuandCopilot Autofix powered by AI d95df76bca feat: separate scheduler lanes for iceberg, lifecycle, and volume management (#8787)
* feat: introduce scheduler lanes for independent per-workload scheduling

Split the single plugin scheduler loop into independent per-lane
goroutines so that volume management, iceberg compaction, and lifecycle
operations never block each other.

Each lane has its own:
- Goroutine (laneSchedulerLoop)
- Wake channel for immediate scheduling
- Admin lock scope (e.g. "plugin scheduler:default")
- Configurable idle sleep duration
- Loop state tracking

Three lanes are defined:
- default: vacuum, volume_balance, ec_balance, erasure_coding, admin_script
- iceberg: iceberg_maintenance
- lifecycle: s3_lifecycle (new, handler coming in a later commit)

Job types are mapped to lanes via a hardcoded map with LaneDefault as
the fallback. The SchedulerJobTypeState and SchedulerStatus types now
include a Lane field for API consumers.

* feat: per-lane execution reservation pools for resource isolation

Each scheduler lane now maintains its own execution reservation map
so that a busy volume lane cannot consume execution slots needed by
iceberg or lifecycle lanes. The per-lane pool is used by default when
dispatching jobs through the lane scheduler; the global pool remains
as a fallback for the public DispatchProposals API.

* feat: add per-lane scheduler status API and lane worker UI pages

- GET /api/plugin/lanes returns all lanes with status and job types
- GET /api/plugin/workers?lane=X filters workers by lane
- GET /api/plugin/scheduler-states?lane=X filters job types by lane
- GET /api/plugin/scheduler-status?lane=X returns lane-scoped status
- GET /plugin/lanes/{lane}/workers renders per-lane worker page
- SchedulerJobTypeState now includes a "lane" field

The lane worker pages show scheduler status, job type configuration,
and connected workers scoped to a single lane, with links back to
the main plugin overview.

* feat: add s3_lifecycle worker handler for object store lifecycle management

Implements a full plugin worker handler for S3 lifecycle management,
assigned to the new "lifecycle" scheduler lane.

Detection phase:
- Reads filer.conf to find buckets with TTL lifecycle rules
- Creates one job proposal per bucket with active lifecycle rules
- Supports bucket_filter wildcard pattern from admin config

Execution phase:
- Walks the bucket directory tree breadth-first
- Identifies expired objects by checking TtlSec + Crtime < now
- Deletes expired objects in configurable batches
- Reports progress with scanned/expired/error counts
- Supports dry_run mode for safe testing

Configurable via admin UI:
- batch_size: entries per filer listing page (default 1000)
- max_deletes_per_bucket: safety cap per run (default 10000)
- dry_run: detect without deleting
- delete_marker_cleanup: clean expired delete markers
- abort_mpu_days: abort stale multipart uploads

The handler integrates with the existing PutBucketLifecycle flow which
sets TtlSec on entries via filer.conf path rules.

* feat: add per-lane submenu items under Workers sidebar menu

Replace the single "Workers" sidebar link with a collapsible submenu
containing three lane entries:
- Default (volume management + admin scripts) -> /plugin
- Iceberg (table compaction) -> /plugin/lanes/iceberg/workers
- Lifecycle (S3 object expiration) -> /plugin/lanes/lifecycle/workers

The submenu auto-expands when on any /plugin page and highlights the
active lane. Icons match each lane's job type descriptor (server,
snowflake, hourglass).

* feat: scope plugin pages to their scheduler lane

The plugin overview, configuration, detection, queue, and execution
pages now filter workers, job types, scheduler states, and scheduler
status to only show data for their lane.

- Plugin() templ function accepts a lane parameter (default: "default")
- JavaScript appends ?lane= to /api/plugin/workers, /job-types,
  /scheduler-states, and /scheduler-status API calls
- GET /api/plugin/job-types now supports ?lane= filtering
- When ?job= is provided (e.g. ?job=iceberg_maintenance), the lane is
  auto-derived from the job type so the page scopes correctly

This ensures /plugin shows only default-lane workers and
/plugin/configuration?job=iceberg_maintenance scopes to the iceberg lane.

* fix: remove "Lane" from lane worker page titles and capitalize properly

"lifecycle Lane Workers" -> "Lifecycle Workers"
"iceberg Lane Workers" -> "Iceberg Workers"

* refactor: promote lane items to top-level sidebar menu entries

Move Default, Iceberg, and Lifecycle from a collapsible submenu to
direct top-level items under the WORKERS heading. Removes the
intermediate "Workers" parent link and collapse toggle.

* admin: unify plugin lane routes and handlers

* admin: filter plugin jobs and activities by lane

* admin: reuse plugin UI for worker lane pages

* fix: use ServerAddress.ToGrpcAddress() for filer connections in lifecycle handler

ClusterContext addresses use ServerAddress format (host:port.grpcPort).
Convert to the actual gRPC address via ToGrpcAddress() before dialing,
and add a Ping verification after connecting.

Fixes: "dial tcp: lookup tcp/8888.18888: unknown port"

* fix: resolve ServerAddress gRPC port in iceberg and lifecycle filer connections

ClusterContext addresses use ServerAddress format (host:httpPort.grpcPort).
Both the iceberg and lifecycle handlers now detect the compound format
and extract the gRPC port via ToGrpcAddress() before dialing. Plain
host:port addresses (e.g. from tests) are passed through unchanged.

Fixes: "dial tcp: lookup tcp/8888.18888: unknown port"

* align url

* Potential fix for code scanning alert no. 335: Incorrect conversion between integer types

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

* fix: address PR review findings across scheduler lanes and lifecycle handler

- Fix variable shadowing: rename loop var `w` to `worker` in
  GetPluginWorkersAPI to avoid shadowing the http.ResponseWriter param
- Fix stale GetSchedulerStatus: aggregate loop states across all lanes
  instead of reading never-updated legacy schedulerLoopState
- Scope InProcessJobs to lane in GetLaneSchedulerStatus
- Fix AbortMPUDays=0 treated as unset: change <= 0 to < 0 so 0 disables
- Propagate listing errors in lifecycle bucket walk instead of swallowing
- Implement DeleteMarkerCleanup: scan for S3 delete marker entries and
  remove them
- Implement AbortMPUDays: scan .uploads directory and remove stale
  multipart uploads older than the configured threshold
- Fix success determination: mark job failed when result.errors > 0
  even if no fatal error occurred
- Add regression test for jobTypeLaneMap to catch drift from handler
  registrations

* fix: guard against nil result in lifecycle completion and trim filer addresses

- Guard result dereference in completion summary: use local vars
  defaulting to 0 when result is nil to prevent panic
- Append trimmed filer addresses instead of originals so whitespace
  is not passed to the gRPC dialer

* fix: propagate ctx cancellation from deleteExpiredObjects and add config logging

- deleteExpiredObjects now returns a third error value when the context
  is canceled mid-batch; the caller stops processing further batches
  and returns the cancellation error to the job completion handler
- readBoolConfig and readInt64Config now log unexpected ConfigValue
  types at V(1) for debugging, consistent with readStringConfig

* fix: propagate errors in lifecycle cleanup helpers and use correct delete marker key

- cleanupDeleteMarkers: return error on ctx cancellation and SeaweedList
  failures instead of silently continuing
- abortIncompleteMPUs: log SeaweedList errors instead of discarding
- isDeleteMarker: use ExtDeleteMarkerKey ("Seaweed-X-Amz-Delete-Marker")
  instead of ExtLatestVersionIsDeleteMarker which is for the parent entry
- batchSize cap: use math.MaxInt instead of math.MaxInt32

* fix: propagate ctx cancellation from abortIncompleteMPUs and log unrecognized bool strings

- abortIncompleteMPUs now returns (aborted, errors, ctxErr) matching
  cleanupDeleteMarkers; caller stops on cancellation or listing failure
- readBoolConfig logs unrecognized string values before falling back

* fix: shared per-bucket budget across lifecycle phases and allow cleanup without expired objects

- Thread a shared remaining counter through TTL deletion, delete marker
  cleanup, and MPU abort so the total operations per bucket never exceed
  MaxDeletesPerBucket
- Remove early return when no TTL-expired objects found so delete marker
  cleanup and MPU abort still run
- Add NOTE on cleanupDeleteMarkers about version-safety limitation

---------

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
2026-03-26 19:28:13 -07:00