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milvus/internal/datacoord
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yihao.dai 5b97cb70a0
enhance: Support delaying scanner startup (#46369) 
Introduce a ScannerStartupDelay configuration to enable WAL write-only
recovery, allowing fence messages to be persisted during
primary–secondary switchover when the StreamingNode is trapped in crash
loops.

issue: https://github.com/milvus-io/milvus/issues/46368

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Added a configurable WAL scanner pause/resume and a consumer request
flag to optionally ignore pause signals.

* **Metrics**
* Added a scanner pause gauge and pause-duration tracking for WAL
scanning.

* **Tests**
* Added coverage for pause-consumption behavior and cleanup in stream
client tests.

* **Chores**
* Consolidated flush-all logging into a single field and added a helper
for bulk message conversion.

<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
2025-12-24 11:53:19 +08:00
..
allocator
enhance: Pooling for data tasks (#41256)
2025-05-20 21:06:24 +08:00
broker
enhance: Optimize FlushAll performance for multi-table scenarios (#43339)
2025-07-30 15:37:37 +08:00
session
enhance: remove redundant channel manager from datacoord (#44532)
2025-10-09 11:01:57 +08:00
task
fix: Skip running scalar index when segment was compacted (#44690)
2025-10-11 12:05:56 +08:00
.mockery.yaml
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
analyze_inspector.go
fix: Fix task getting stuck after recovery (#42114)
2025-05-28 12:46:28 +08:00
analyze_meta_test.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
analyze_meta.go
enhance: Pooling for data tasks (#41256)
2025-05-20 21:06:24 +08:00
build_index_policy.go
Format the code (#27275)
2023-09-21 09:45:27 +08:00
channel.go
enhance: remove redundant channel manager from datacoord (#44532)
2025-10-09 11:01:57 +08:00
compaction_inspector_test.go
enhance: Set latestDeletePos from L0 segments to bound L1 selection (#46436)
2025-12-23 11:55:19 +08:00
compaction_inspector.go
fix: Skip Finished tasks when recovery with compatibility (#46515)
2025-12-23 18:09:18 +08:00
compaction_l0_view_test.go
enhance: Set latestDeletePos from L0 segments to bound L1 selection (#46436)
2025-12-23 11:55:19 +08:00
compaction_l0_view.go
enhance: Set latestDeletePos from L0 segments to bound L1 selection (#46436)
2025-12-23 11:55:19 +08:00
compaction_policy_clustering_test.go
enhance: remove uncessary segment size estimation and make it configurable (#46302)
2025-12-13 02:58:46 +08:00
compaction_policy_clustering.go
enhance: remove uncessary segment size estimation and make it configurable (#46302)
2025-12-13 02:58:46 +08:00
compaction_policy_forcemerge_test.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
compaction_policy_forcemerge.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
compaction_policy_l0_test.go
enhance: Set latestDeletePos from L0 segments to bound L1 selection (#46436)
2025-12-23 11:55:19 +08:00
compaction_policy_l0.go
enhance: Set latestDeletePos from L0 segments to bound L1 selection (#46436)
2025-12-23 11:55:19 +08:00
compaction_policy_single_test.go
enhance: Move sort stats task to sort compaction (#42562)
2025-07-08 20:22:47 +08:00
compaction_policy_single.go
feat: Auto add namespace field data if namespace is enabled (#44933)
2025-10-24 18:40:05 +08:00
compaction_queue_test.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
compaction_queue.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
compaction_task_clustering_test.go
fix: Set task init when worker doesn't have task (#45675)
2025-11-19 18:03:07 +08:00
compaction_task_clustering.go
enhance: integrate Storage V2 FFI interface for unified storage access (#45723)
2025-11-24 19:57:07 +08:00
compaction_task_l0_test.go
fix: Set task init when worker doesn't have task (#45675)
2025-11-19 18:03:07 +08:00
compaction_task_l0.go
enhance: integrate Storage V2 FFI interface for unified storage access (#45723)
2025-11-24 19:57:07 +08:00
compaction_task_meta_test.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
compaction_task_meta.go
fix: Skip Finished tasks when recovery with compatibility (#46515)
2025-12-23 18:09:18 +08:00
compaction_task_mix_test.go
enhance: remove redundant channel manager from datacoord (#44532)
2025-10-09 11:01:57 +08:00
compaction_task_mix.go
enhance: Add log with segment size for tasks (#46118)
2025-12-05 16:45:11 +08:00
compaction_task.go
fix: Accidentally ignored sealed segments in L0 Compaction (#45340)
2025-11-06 16:53:38 +08:00
compaction_trigger_test.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
compaction_trigger_v2_test.go
enhance: Set latestDeletePos from L0 segments to bound L1 selection (#46436)
2025-12-23 11:55:19 +08:00
compaction_trigger_v2.go
enhance: Set latestDeletePos from L0 segments to bound L1 selection (#46436)
2025-12-23 11:55:19 +08:00
compaction_trigger.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
compaction_util.go
fix: Skip Finished tasks when recovery with compatibility (#46515)
2025-12-23 18:09:18 +08:00
compaction_view_forcemerge_test.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
compaction_view_forcemerge.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
compaction_view.go
feat: support mannual compact l0(#44439) (#44440)
2025-09-23 12:44:07 +08:00
const.go
enhance: pass partition key scalar info if enabled when build vector index (#29931)
2024-01-24 00:04:55 +08:00
create_meta_test.go
enhance: Pooling for data tasks (#41256)
2025-05-20 21:06:24 +08:00
ddl_callbacks_alter_index.go
enhance: support collection and index with WAL-based DDL framework (#45033)
2025-10-30 14:24:08 +08:00
ddl_callbacks_create_index.go
enhance: support collection and index with WAL-based DDL framework (#45033)
2025-10-30 14:24:08 +08:00
ddl_callbacks_drop_index.go
enhance: support collection and index with WAL-based DDL framework (#45033)
2025-10-30 14:24:08 +08:00
ddl_callbacks_flushall.go
enhance: Implement new FlushAllMessage and refactor flush all (#45920)
2025-12-10 19:27:13 +08:00
ddl_callbacks.go
enhance: Implement new FlushAllMessage and refactor flush all (#45920)
2025-12-10 19:27:13 +08:00
errors_test.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
errors.go
Refine DataCoord status (#27262)
2023-09-26 17:15:27 +08:00
external_collection_inspector.go
enhance: implement external collection update task with source change detection (#45690)
2025-11-27 15:33:08 +08:00
external_collection_task_meta.go
enhance: implement external collection update task with source change detection (#45690)
2025-11-27 15:33:08 +08:00
file_resource_manager_test.go
enhance: sync file resource to querynode and datanode (#44480)
2025-12-04 16:23:11 +08:00
file_resource_manager.go
enhance: sync file resource to querynode and datanode (#44480)
2025-12-04 16:23:11 +08:00
garbage_collector_test.go
enhance: support pause GC at collection level (#45943)
2025-12-08 19:33:15 +08:00
garbage_collector.go
fix: stack overflow when gc json or json key (#46317)
2025-12-12 20:05:15 +08:00
go_channel_singleton.go
fix: Fix improper use of offset in HybridSearch (#36244)
2024-09-13 22:05:15 +08:00
handler_test.go
enhance: support collection and index with WAL-based DDL framework (#45033)
2025-10-30 14:24:08 +08:00
handler.go
enhance: support AckSyncUp for broadcaster, and enable it in truncate api (#46313)
2025-12-17 16:55:17 +08:00
import_checker_test.go
enhance: sync file resource to querynode and datanode (#44480)
2025-12-04 16:23:11 +08:00
import_checker.go
enhance: Skip redundant failure marking for completed import jobs (#45767)
2025-11-25 11:21:07 +08:00
import_inspector_test.go
enhance: sync file resource to querynode and datanode (#44480)
2025-12-04 16:23:11 +08:00
import_inspector.go
enhance: Move sort stats task to sort compaction (#42562)
2025-07-08 20:22:47 +08:00
import_job.go
enhance: Show create time for import job (#45058)
2025-10-27 12:14:08 +08:00
import_meta_test.go
enhance: Pooling for data tasks (#41256)
2025-05-20 21:06:24 +08:00
import_meta.go
enhance: Enhance import context (#42021)
2025-05-23 12:58:27 +08:00
import_task_import_test.go
enhance: Enhance import context (#42021)
2025-05-23 12:58:27 +08:00
import_task_import.go
enhance: support useLoonFFI flag in import workflow (#46363)
2025-12-17 16:35:16 +08:00
import_task_preimport_test.go
enhance: Enhance import context (#42021)
2025-05-23 12:58:27 +08:00
import_task_preimport.go
fix: Fix task state is InProgress but payload is nil (#43777)
2025-08-11 14:13:42 +08:00
import_task.go
enhance: Move sort stats task to sort compaction (#42562)
2025-07-08 20:22:47 +08:00
import_util_test.go
enhance: sync file resource to querynode and datanode (#44480)
2025-12-04 16:23:11 +08:00
import_util.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
index_engine_version_manager_test.go
enhance: Implement rewatch mechanism for etcd failure scenarios (#43829)
2025-08-14 10:31:44 +08:00
index_engine_version_manager.go
enhance: Implement rewatch mechanism for etcd failure scenarios (#43829)
2025-08-14 10:31:44 +08:00
index_inspector_test.go
enhance: override index_type while creating segment index (#45416)
2025-11-11 07:27:36 +08:00
index_inspector.go
enhance: Estimate index task slot using field size instead of segment size (#46275)
2025-12-23 11:23:22 +08:00
index_meta_test.go
fix: ddl framework bug patch (#45290)
2025-11-04 22:25:33 +08:00
index_meta.go
enhance: override index_type while creating segment index (#45416)
2025-11-11 07:27:36 +08:00
index_service_test.go
fix: support upgrading from 2.6.x to 2.6.5 (#45264)
2025-11-04 18:31:32 +08:00
index_service.go
enhance: override index_type while creating segment index (#45416)
2025-11-11 07:27:36 +08:00
knapsack_test.go
enhance: refine compaction trigger to reduce read/write amplifaction(#41336) (#41728)
2025-06-04 11:24:38 +08:00
knapsack.go
enhance: refine compaction trigger to reduce read/write amplifaction(#41336) (#41728)
2025-06-04 11:24:38 +08:00
meta_test.go
feat: support TruncateCollection api to clear collection data (#46167)
2025-12-12 10:31:14 +08:00
meta_util.go
fix: make savebinlogpath idompotent at binlog level (#43615)
2025-07-29 19:47:36 +08:00
meta.go
feat: support TruncateCollection api to clear collection data (#46167)
2025-12-12 10:31:14 +08:00
metrics_info_test.go
enhance: sync file resource to querynode and datanode (#44480)
2025-12-04 16:23:11 +08:00
metrics_info.go
enhance: remove redundant channel manager from datacoord (#44532)
2025-10-09 11:01:57 +08:00
mock_collection_topology_querier.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
mock_compaction_inspector.go
enhance: Move sort stats task to sort compaction (#42562)
2025-07-08 20:22:47 +08:00
mock_compaction_meta.go
enhance: Fail compaction task to prevent data loss (#43545)
2025-07-25 16:24:54 +08:00
mock_handler.go
feat: Support add_function/alter_function/drop_function (#44895)
2025-11-13 20:53:39 +08:00
mock_import_meta.go
fix: Pre-check import message to prevent pipeline block indefinitely (#42415)
2025-06-11 13:40:38 +08:00
mock_index_engine_version_manager.go
enhance: Pooling for data tasks (#41256)
2025-05-20 21:06:24 +08:00
mock_segment_manager.go
feat: add NotifyDropPartition in mixcoord for droppartition in dc (#42029)
2025-05-23 18:32:26 +08:00
mock_stats_job_manager.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
mock_sub_cluster.go
enhance: Pooling for data tasks (#41256)
2025-05-20 21:06:24 +08:00
mock_test.go
feat: impl ComputePhraseMatchSlop for compute min slop for phrase match query (#45892)
2025-12-19 16:03:18 +08:00
mock_trigger_manager.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
mock_trigger.go
enhance: Pooling for data tasks (#41256)
2025-05-20 21:06:24 +08:00
OWNERS
[skip ci]Update OWNERS files (#11898)
2021-11-16 15:41:11 +08:00
partition_stats_meta_test.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
partition_stats_meta.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
README.md
[skip ci]Change etcd to lowercase (#9983)
2021-10-15 18:58:37 +08:00
segment_allocation_policy_test.go
enhance: remove uncessary segment size estimation and make it configurable (#46302)
2025-12-13 02:58:46 +08:00
segment_allocation_policy.go
enhance: remove uncessary segment size estimation and make it configurable (#46302)
2025-12-13 02:58:46 +08:00
segment_info_test.go
enhance: Estimate index task slot using field size instead of segment size (#46275)
2025-12-23 11:23:22 +08:00
segment_info.go
enhance: Estimate index task slot using field size instead of segment size (#46275)
2025-12-23 11:23:22 +08:00
segment_manager_test.go
feat: add NotifyDropPartition in mixcoord for droppartition in dc (#42029)
2025-05-23 18:32:26 +08:00
segment_manager.go
feat: add NotifyDropPartition in mixcoord for droppartition in dc (#42029)
2025-05-23 18:32:26 +08:00
segment_operator_test.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
segment_operator.go
enhance: Add json key inverted index in stats for optimization (#38039)
2025-04-10 15:20:28 +08:00
server_test.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
server.go
feat: Add force merge (#45556)
2025-12-19 18:03:18 +08:00
services_test.go
enhance: Return FlushAllMsg in response (#46347)
2025-12-16 10:35:16 +08:00
services.go
enhance: Support delaying scanner startup (#46369)
2025-12-24 11:53:19 +08:00
stats_inspector_test.go
enhance: Move sort stats task to sort compaction (#42562)
2025-07-08 20:22:47 +08:00
stats_inspector.go
enhance: support json stats with shredding design (#42534)
2025-09-01 10:49:52 +08:00
stats_task_meta_test.go
enhance: Move sort stats task to sort compaction (#42562)
2025-07-08 20:22:47 +08:00
stats_task_meta.go
enhance: Move sort stats task to sort compaction (#42562)
2025-07-08 20:22:47 +08:00
task_analyze_test.go
feat: Add CMEK cipher plugin (#43722)
2025-08-27 11:15:52 +08:00
task_analyze.go
feat: Add CMEK cipher plugin (#43722)
2025-08-27 11:15:52 +08:00
task_index_test.go
enhance: Pooling for data tasks (#41256)
2025-05-20 21:06:24 +08:00
task_index.go
enhance: Resolve issues integrating loon FFI (#45918)
2025-11-28 18:41:08 +08:00
task_stats_test.go
enhance: Move sort stats task to sort compaction (#42562)
2025-07-08 20:22:47 +08:00
task_stats.go
enhance: pass manifest path to stats task for storage v2 support (#46350)
2025-12-16 11:11:16 +08:00
task_update_external_collection.go
enhance: implement external collection update task with source change detection (#45690)
2025-11-27 15:33:08 +08:00
util_test.go
enhance: Use v2 package name for pkg module (#39990)
2025-02-22 23:15:58 +08:00
util.go
enhance: Estimate index task slot using field size instead of segment size (#46275)
2025-12-23 11:23:22 +08:00

README.md

Data Coordinator

Data cooridnator(datacoord for short) is the component to organize DataNodes and segments allocations.

Dependency

  • KV store: a kv store has all the meta info datacoord needs to operate. (etcd)
  • Message stream: a message stream to communicate statistics information with data nodes. (Pulsar)
  • Root Coordinator: timestamp, id and meta source.
  • Data Node(s): could be an instance or a cluster, actual worker group handles data modification operations.