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>

weed/storage/store_ec.go

@@ -25,10 +25,10 @@ import (
 func (s *Store) CollectErasureCodingHeartbeat() *master_pb.Heartbeat {
 	var ecShardMessages []*master_pb.VolumeEcShardInformationMessage
 	collectionEcShardSize := make(map[string]int64)
-	for _, location := range s.Locations {
+	for diskId, location := range s.Locations {
 		location.ecVolumesLock.RLock()
 		for _, ecShards := range location.ecVolumes {
-			ecShardMessages = append(ecShardMessages, ecShards.ToVolumeEcShardInformationMessage()...)
+			ecShardMessages = append(ecShardMessages, ecShards.ToVolumeEcShardInformationMessage(uint32(diskId))...)
 
 			for _, ecShard := range ecShards.Shards {
 				collectionEcShardSize[ecShards.Collection] += ecShard.Size()
@@ -49,9 +49,9 @@ func (s *Store) CollectErasureCodingHeartbeat() *master_pb.Heartbeat {
 }
 
 func (s *Store) MountEcShards(collection string, vid needle.VolumeId, shardId erasure_coding.ShardId) error {
-	for _, location := range s.Locations {
+	for diskId, location := range s.Locations {
 		if ecVolume, err := location.LoadEcShard(collection, vid, shardId); err == nil {
-			glog.V(0).Infof("MountEcShards %d.%d", vid, shardId)
+			glog.V(0).Infof("MountEcShards %d.%d on disk ID %d", vid, shardId, diskId)
 
 			var shardBits erasure_coding.ShardBits
 
@@ -61,6 +61,7 @@ func (s *Store) MountEcShards(collection string, vid needle.VolumeId, shardId er
 				EcIndexBits: uint32(shardBits.AddShardId(shardId)),
 				DiskType:    string(location.DiskType),
 				ExpireAtSec: ecVolume.ExpireAtSec,
+				DiskId:      uint32(diskId),
 			}
 			return nil
 		} else if err == os.ErrNotExist {
@@ -75,7 +76,7 @@ func (s *Store) MountEcShards(collection string, vid needle.VolumeId, shardId er
 
 func (s *Store) UnmountEcShards(vid needle.VolumeId, shardId erasure_coding.ShardId) error {
 
-	ecShard, found := s.findEcShard(vid, shardId)
+	diskId, ecShard, found := s.findEcShard(vid, shardId)
 	if !found {
 		return nil
 	}
@@ -86,26 +87,27 @@ func (s *Store) UnmountEcShards(vid needle.VolumeId, shardId erasure_coding.Shar
 		Collection:  ecShard.Collection,
 		EcIndexBits: uint32(shardBits.AddShardId(shardId)),
 		DiskType:    string(ecShard.DiskType),
+		DiskId:      diskId,
 	}
 
-	for _, location := range s.Locations {
-		if deleted := location.UnloadEcShard(vid, shardId); deleted {
-			glog.V(0).Infof("UnmountEcShards %d.%d", vid, shardId)
-			s.DeletedEcShardsChan <- message
-			return nil
-		}
+	location := s.Locations[diskId]
+
+	if deleted := location.UnloadEcShard(vid, shardId); deleted {
+		glog.V(0).Infof("UnmountEcShards %d.%d", vid, shardId)
+		s.DeletedEcShardsChan <- message
+		return nil
 	}
 
 	return fmt.Errorf("UnmountEcShards %d.%d not found on disk", vid, shardId)
 }
 
-func (s *Store) findEcShard(vid needle.VolumeId, shardId erasure_coding.ShardId) (*erasure_coding.EcVolumeShard, bool) {
-	for _, location := range s.Locations {
+func (s *Store) findEcShard(vid needle.VolumeId, shardId erasure_coding.ShardId) (diskId uint32, shard *erasure_coding.EcVolumeShard, found bool) {
+	for diskId, location := range s.Locations {
 		if v, found := location.FindEcShard(vid, shardId); found {
-			return v, found
+			return uint32(diskId), v, found
 		}
 	}
-	return nil, false
+	return 0, nil, false
 }
 
 func (s *Store) FindEcVolume(vid needle.VolumeId) (*erasure_coding.EcVolume, bool) {