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/pb/volume_server.proto

@@ -53,6 +53,8 @@ service VolumeServer {
     }
     rpc CopyFile (CopyFileRequest) returns (stream CopyFileResponse) {
     }
+    rpc ReceiveFile (stream ReceiveFileRequest) returns (ReceiveFileResponse) {
+    }
 
     rpc ReadNeedleBlob (ReadNeedleBlobRequest) returns (ReadNeedleBlobResponse) {
     }
@@ -87,6 +89,8 @@ service VolumeServer {
     }
     rpc VolumeEcShardsToVolume (VolumeEcShardsToVolumeRequest) returns (VolumeEcShardsToVolumeResponse) {
     }
+    rpc VolumeEcShardsInfo (VolumeEcShardsInfoRequest) returns (VolumeEcShardsInfoResponse) {
+    }
 
     // tiered storage
     rpc VolumeTierMoveDatToRemote (VolumeTierMoveDatToRemoteRequest) returns (stream VolumeTierMoveDatToRemoteResponse) {
@@ -285,6 +289,27 @@ message CopyFileResponse {
     int64 modified_ts_ns = 2;
 }
 
+message ReceiveFileRequest {
+    oneof data {
+        ReceiveFileInfo info = 1;
+        bytes file_content = 2;
+    }
+}
+
+message ReceiveFileInfo {
+    uint32 volume_id = 1;
+    string ext = 2;
+    string collection = 3;
+    bool is_ec_volume = 4;
+    uint32 shard_id = 5;
+    uint64 file_size = 6;
+}
+
+message ReceiveFileResponse {
+    uint64 bytes_written = 1;
+    string error = 2;
+}
+
 message ReadNeedleBlobRequest {
     uint32 volume_id = 1;
     int64 offset = 3; // actual offset
@@ -376,6 +401,7 @@ message VolumeEcShardsCopyRequest {
     string source_data_node = 5;
     bool copy_ecj_file = 6;
     bool copy_vif_file = 7;
+    uint32 disk_id = 8;  // Target disk ID for storing EC shards
 }
 message VolumeEcShardsCopyResponse {
 }
@@ -431,6 +457,19 @@ message VolumeEcShardsToVolumeRequest {
 message VolumeEcShardsToVolumeResponse {
 }
 
+message VolumeEcShardsInfoRequest {
+    uint32 volume_id = 1;
+}
+message VolumeEcShardsInfoResponse {
+    repeated EcShardInfo ec_shard_infos = 1;
+}
+
+message EcShardInfo {
+    uint32 shard_id = 1;
+    int64 size = 2;
+    string collection = 3;
+}
+
 message ReadVolumeFileStatusRequest {
     uint32 volume_id = 1;
 }