Commit Graph
4 Commits
Author SHA1 Message Date
Chris Lu 532b088262 fix(ec): preserve source disk type across EC encoding (#9423) (#9449)
* fix(ec): carry source disk type on VolumeEcShardsMount (#9423)

When EC shards land on a target whose disk type differs from the
source volume's, master heartbeats wrongly reported under the target
disk's type. Add source_disk_type to VolumeEcShardsMountRequest; the
target server applies it to the in-memory EcVolume via SetDiskType so
the mount notification and steady-state heartbeat both carry the
source's disk type. Empty value falls back to the location's disk
type (used by disk-scan reload paths).

The override is not persisted with the volume — disk type stays an
environmental property and .vif remains portable.

* fix(ec): plumb source disk type through plugin worker (#9423)

Add source_disk_type to ErasureCodingTaskParams (field 8; 7 reserved),
populate it from the metric the detector already collects, thread it
through ec_task into the MountEcShards helper, and forward it on the
VolumeEcShardsMount RPC.

* fix(ec): mirror source disk type plumbing in rust volume server (#9423)

The volume_ec_shards_mount handler now forwards source_disk_type into
mount_ec_shard → DiskLocation::mount_ec_shards. When non-empty it
overrides ec_vol.disk_type (and each mounted shard's disk_type) via
the new set_disk_type method; empty value keeps the location's disk
type, so disk-scan reload and reconcile paths are unchanged.

Also picks up two pre-existing proto drifts that 'make gen' synced
from weed/pb (LockRingUpdate in master.proto, listing_cache_ttl_seconds
in remote.proto).

* feat(ec): bias placement toward preferred disk type (#9423)

Add DiskCandidate.DiskType and PlacementRequest.PreferredDiskType.
When PreferredDiskType is non-empty, SelectDestinations partitions
suitable disks into matching/fallback tiers and runs the rack/server/
disk-diversity passes on the matching tier first; the fallback tier
is only consulted if the matching pool can't satisfy ShardsNeeded.
PlacementResult.SpilledToOtherDiskType lets callers warn on spillover.

Empty PreferredDiskType keeps the existing single-pool behavior.

* fix(ec): plumb source disk type into placement planner (#9423)

diskInfosToCandidates now copies DiskInfo.DiskType into the placement
candidate, and ecPlacementPlanner.selectDestinations forwards
metric.DiskType as PreferredDiskType so EC shards land on disks
matching the source volume's disk type when possible. A glog warning
fires when placement had to spill to other disk types.

* test(ec): integration coverage for source-disk-type plumbing (#9423)

store_ec_disk_type_test exercises Store.MountEcShards end-to-end: a
shard physically lives on an HDD location, MountEcShards is called
with sourceDiskType="ssd", and the test asserts that the in-memory
EcVolume, the mounted shard, the NewEcShardsChan notification, and
the steady-state heartbeat all report under the source's disk type.
A companion test pins the empty-source path so disk-scan reload
keeps the location's disk type.

detection_disk_type_test exercises the worker plumbing: with a
cluster of nodes carrying both HDD and SSD disks, planECDestinations
must place every shard on SSD when metric.DiskType="ssd"; with only
one SSD node and 13 HDD nodes it must still satisfy a 10+4 layout
via spillover (and log a warning).

* revert(ec): drop unrelated proto drift in seaweed-volume/proto (#9423)

make gen pulled two pre-existing OSS changes into the rust proto
tree (LockRingUpdate / by_plugin in master.proto,
listing_cache_ttl_seconds in remote.proto). Reviewers flagged it as
scope creep — none of the rust EC fix references those fields.
Restore both files to origin/master so this branch only touches
EC-related symbols.

* fix(ec placement): treat empty disk type as hdd and skip used racks on spill (#9423)

partitionByDiskType used raw string comparison, so a PreferredDiskType
of "hdd" never matched candidates whose DiskType is "" (the
HardDriveType sentinel that weed/storage/types uses). EC encoding of
an HDD source would spill onto any HDD reporting "" even when the
cluster has plenty of matching capacity. Normalize both sides
through normalizeDiskType, which lowercases and folds "" → "hdd",
mirroring types.ToDiskType without taking a dependency on it.

selectFromTier's rack-diversity pass also kept revisiting racks the
preferred tier had already used when running on the fallback tier,
which negated PreferDifferentRacks on spillover. Skip racks already
in usedRacks so fallback placements still spread onto new racks.

* fix(ec): empty-source remount must not clobber existing disk type (#9423)

mount_ec_shards_with_idx_dir runs more than once per vid (RPC mount,
disk-scan reload, orphan-shard reconcile). After an RPC sets the
source-derived disk type, any later call passing source_disk_type=""
was resetting ec_vol.disk_type back to the location's value, which
reintroduces the heartbeat drift this PR is meant to fix. Only
default to the location's disk type when the EC volume is fresh
(no shards mounted yet); otherwise leave the recorded type alone so
empty-source reloads preserve whatever the original mount RPC set.
2026-05-11 20:21:50 -07:00
Chris Lu fd463155e4 fix(ec): planner treats each (server, disk_id) as a distinct target (#9369) (#9371)
* fix(ec): planner treats each (server, disk_id) as a distinct target (#9369)

master_pb.DataNodeInfo.DiskInfos is keyed by disk type, so a volume
server with multiple physical disks of the same type collapses into a
single DiskInfo. Per-disk attribution survives only inside the
VolumeInfos[].DiskId / EcShardInfos[].DiskId records, and the active
topology never put it back together. The EC planner saw N candidates
instead of N×disks, returned a short plan, and createECTargets
round-robined extra shards onto the same (server, disk_id) — colliding
with the #9185 disk_id-aware ReceiveFile.

Reconstruct per-physical-disk view in UpdateTopology by splitting each
DiskInfo into one entry per observed disk_id, and index volumes / EC
shards by their own DiskId so lookups stay aligned. Refuse to plan an
EC task when fewer than totalShards distinct disks are available rather
than packing shards onto the same disk.

Threads dataShards/parityShards through planECDestinations,
createECTargets and createECTaskParams so the helpers don't depend on
the OSS 10+4 constants — keeps enterprise merges clean.

* trim verbose comments

* align EC param signatures with enterprise

- dataShards/parityShards: uint32 → int (matches enterprise's ratio API)
- drop unused multiPlan from createECTaskParams
- minTotalDisks: total/parity+1 → ceil(total/parity), correct for non-default ratios

Reduces merge surface when this PR lands in seaweed-enterprise.
2026-05-08 12:59:02 -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
Chris Lu d2b92938ee Make EC detection context aware (#8449)
* Make EC detection context aware

* Update register.go

* Speed up EC detection planning

* Add tests for EC detection planner

* optimizations

detection.go: extracted ParseCollectionFilter (exported) and feed it into the detection loop so both detection and tracing share the same parsing/whitelisting logic; the detection loop now iterates on a sorted list of volume IDs, checks the context at every iteration, and only sets hasMore when there are still unprocessed groups after hitting maxResults, keeping runtime bounded while still scheduling planned tasks before returning the results.
erasure_coding_handler.go: dropped the duplicated inline filter parsing in emitErasureCodingDetectionDecisionTrace and now reuse erasurecodingtask.ParseCollectionFilter, and the summary suffix logic now only accounts for the hasMore case that can actually happen.
detection_test.go: updated the helper topology builder to use master_pb.VolumeInformationMessage (matching the current protobuf types) and tightened the cancellation/max-results tests so they reliably exercise the detection logic (cancel before calling Detection, and provide enough disks so one result is produced before the limit).

* use working directory

* fix compilation

* fix compilation

* rename

* go vet

* fix getenv

* address comments, fix error
2026-02-25 18:02:35 -08:00