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[8.4] [MOD-12694] [MOD-12069] Add active_coord_threads metric#7622

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meiravgri merged 1 commit into8.4from
backport-7546-to-8.4
Dec 3, 2025
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[8.4] [MOD-12694] [MOD-12069] Add active_coord_threads metric#7622
meiravgri merged 1 commit into8.4from
backport-7546-to-8.4

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@meiravgri meiravgri commented Dec 3, 2025

backport #7546 to 8.4


Note

Expose active coordinator thread count in INFO MODULES by adding active_coord_threads sourced from a new ConcurrentSearch pool counter, and update tests accordingly.

  • Info/Stats:
    • Add active_coord_threads to MultiThreadingStats and expose it in INFO MODULES (search_active_coord_threads).
    • GlobalStats_GetMultiThreadingStats() now populates active_coord_threads via ConcurrentSearchPool_WorkingThreadCount().
  • Concurrency:
    • Introduce ConcurrentSearchPool_WorkingThreadCount() in concurrent_ctx.{h,c}; add C++ linkage guards in the header.
  • Workers:
    • Remove workersThreadPool_isCreated() (and related assert usage).
  • Tests:
    • C++: initialize/destroy coordinator pool in ActiveIoThreadsMetric and include concurrent_ctx.h.
    • Python: validate search_active_coord_threads is reported (0 when idle; equals paused query count for coordinator in cluster FT.AGGREGATE).

Written by Cursor Bugbot for commit af961be. This will update automatically on new commits. Configure here.

* Add multi-threading statistics tracking for active I/O threads

* fix comment

* add cpp test

* fix spelling

* address comment

* remove unnecessary nre line

* add "active_worker_threads" metric

* fix comment
imp tests

* test cleanups

* add test comne about the num queries and cleanups

* fix declartion

* remove coord threads

* add active_coord_threads

expose ConcurrentSearchPool_WorkingThreadCount

* make the tests run...

* add "active_worker_threads" metric

* fix declartion

* remove coord threads

* make the tests run...

* introduce workersThreadPool_isInitialized
assert is initizlied in GlobalStats_GetMultiThreadingStats

* cleanup

* rename workersThreadPool_isCreated

* introduce ConcurrentSearchPool_IsCreated

* fix test

* we dont need workers

* remove ConcurrentSearchPool_IsCreated and workersThreadPool_isInitialized

* fix merge

(cherry picked from commit b0fc4ea)
@github-actions github-actions bot added the size:S label Dec 3, 2025
@meiravgri meiravgri requested a review from JoanFM December 3, 2025 04:55
@meiravgri meiravgri enabled auto-merge December 3, 2025 05:13
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codecov bot commented Dec 3, 2025

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.93%. Comparing base (6bbb4e8) to head (af961be).
⚠️ Report is 1 commits behind head on 8.4.

Additional details and impacted files
@@            Coverage Diff             @@
##              8.4    #7622      +/-   ##
==========================================
- Coverage   85.94%   85.93%   -0.01%     
==========================================
  Files         331      331              
  Lines       52824    52827       +3     
  Branches    12004    12004              
==========================================
  Hits        45399    45399              
- Misses       7258     7261       +3     
  Partials      167      167              
Flag Coverage Δ
flow 84.51% <100.00%> (-0.11%) ⬇️
unit 52.59% <83.33%> (+0.01%) ⬆️

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@meiravgri meiravgri added this pull request to the merge queue Dec 3, 2025
@github-merge-queue github-merge-queue bot removed this pull request from the merge queue due to failed status checks Dec 3, 2025
@meiravgri meiravgri added this pull request to the merge queue Dec 3, 2025
Merged via the queue into 8.4 with commit c476509 Dec 3, 2025
26 checks passed
@meiravgri meiravgri deleted the backport-7546-to-8.4 branch December 3, 2025 10:04
alonre24 added a commit to alonre24/redis that referenced this pull request Jan 26, 2026
**Bug Fixes:**

* [redis#7385](RediSearch/RediSearch#7385) Fix high temporary memory consumption when loading multiple search indexes from RDB
* [redis#7430](RediSearch/RediSearch#7430) Fix a potential deadlock in `FT.HYBRID` in cluster mode during updates.
* [redis#7454](RediSearch/RediSearch#7454) Fix a garbage collection performence regression
* [redis#7460](RediSearch/RediSearch#7460) Fix potential double-free in Fork GC error paths
* [redis#7455](RediSearch/RediSearch#7455) Fix internal cursors not being deleted promptly in cluster mode
* [redis#7667](RediSearch/RediSearch#7667) Fix a cursor logical leak upon dropping the index
* [redis#7796](RediSearch/RediSearch#7796) Fix a potential use-after-free when removing connections
* [redis#7792](RediSearch/RediSearch#7792) Fix string comparison for binary data with embedded NULLs in TOLIST reducer in FT.AGGREGATE
* [redis#7823](RediSearch/RediSearch#7823) Update `FT.HYBRID` to accept vector blobs only via parameters
* [redis#7903](RediSearch/RediSearch#7903) Fix a memory leak in Hybrid ASM
* [redis#8052](RediSearch/RediSearch#8052) Fix `FT.HYBRID` behavior when used with `LOAD *`
* [redis#8082](RediSearch/RediSearch#8082) Fix incorrect FULLTEXT field metric counts
* [redis#8089](RediSearch/RediSearch#8089) Fix an edge case in `CLUSTERSET` handling
* [redis#8152](RediSearch/RediSearch#8152) Fix configuration registration issues

**Improvements:**

* [redis#7427](RediSearch/RediSearch#7427) Enhance `FT.PROFILE` with vector search execution details
* [redis#7431](RediSearch/RediSearch#7431) Ensure full `FT.PROFILE` output is returned on timeout with RETURN policy
* [redis#7507](RediSearch/RediSearch#7507) Track timeout warnings and errors in INFO
* [redis#7576](RediSearch/RediSearch#7576) Track OOM warnings and errors in INFO
* [redis#7612](RediSearch/RediSearch#7612) Track `maxprefixexpansions` warnings and errors in INFO
* [redis#7960](RediSearch/RediSearch#7960) Persist query warnings across cursor reads
* [redis#7551](RediSearch/RediSearch#7551), [redis#7616](RediSearch/RediSearch#7616), [redis#7622](RediSearch/RediSearch#7622), [redis#7625](RediSearch/RediSearch#7625) Add runtime thread and pending-jobs metrics
* [redis#7589](RediSearch/RediSearch#7589) Support multiple slot ranges in `search.CLUSTERSET`
* [redis#7707](RediSearch/RediSearch#7707) Add `WITHCOUNT` support to `FT.AGGREGATE`
* [redis#7862](RediSearch/RediSearch#7862) Add support for subquery `COUNT` in `FT.HYBRID`
* [redis#8087](RediSearch/RediSearch#8087) Add warnings when cursor results may be affected by ASM and expose ASM warnings in `FT.PROFILE`
* [redis#8049](RediSearch/RediSearch#8049) Add logging for index-related commands
* [redis#8150](RediSearch/RediSearch#8150) Fix shard total profile time reporting in `FT.PROFILE`
YaacovHazan pushed a commit to redis/redis that referenced this pull request Jan 26, 2026
**Bug Fixes:**

* [#7385](RediSearch/RediSearch#7385) Fix high
temporary memory consumption when loading multiple search indexes from
RDB
* [#7430](RediSearch/RediSearch#7430) Fix a
potential deadlock in `FT.HYBRID` in cluster mode during updates.
* [#7454](RediSearch/RediSearch#7454) Fix a
garbage collection performence regression
* [#7460](RediSearch/RediSearch#7460) Fix
potential double-free in Fork GC error paths
* [#7455](RediSearch/RediSearch#7455) Fix
internal cursors not being deleted promptly in cluster mode
* [#7667](RediSearch/RediSearch#7667) Fix a
cursor logical leak upon dropping the index
* [#7796](RediSearch/RediSearch#7796) Fix a
potential use-after-free when removing connections
* [#7792](RediSearch/RediSearch#7792) Fix string
comparison for binary data with embedded NULLs in TOLIST reducer in
FT.AGGREGATE
* [#7704](RediSearch/RediSearch#7704) Use
asynchronous jobs for GC in SVS to accelerate execution
* [#7823](RediSearch/RediSearch#7823) Update
`FT.HYBRID` to accept vector blobs only via parameters
* [#7903](RediSearch/RediSearch#7903) Fix a
memory leak in Hybrid ASM
* [#8052](RediSearch/RediSearch#8052) Fix
`FT.HYBRID` behavior when used with `LOAD *`
* [#8082](RediSearch/RediSearch#8082) Fix
incorrect FULLTEXT field metric counts
* [#8089](RediSearch/RediSearch#8089) Fix an
edge case in `CLUSTERSET` handling
* [#8152](RediSearch/RediSearch#8152) Fix
configuration registration issues

**Improvements:**

* [#7427](RediSearch/RediSearch#7427) Enhance
`FT.PROFILE` with vector search execution details
* [#7431](RediSearch/RediSearch#7431) Ensure
full `FT.PROFILE` output is returned on timeout with RETURN policy
* [#7507](RediSearch/RediSearch#7507) Track
timeout warnings and errors in INFO
* [#7576](RediSearch/RediSearch#7576) Track OOM
warnings and errors in INFO
* [#7612](RediSearch/RediSearch#7612) Track
`maxprefixexpansions` warnings and errors in INFO
* [#7960](RediSearch/RediSearch#7960) Persist
query warnings across cursor reads
* [#7551](RediSearch/RediSearch#7551),
[#7616](RediSearch/RediSearch#7616),
[#7622](RediSearch/RediSearch#7622),
[#7625](RediSearch/RediSearch#7625) Add runtime
thread and pending-jobs metrics
* [#7589](RediSearch/RediSearch#7589) Support
multiple slot ranges in `search.CLUSTERSET`
* [#7707](RediSearch/RediSearch#7707) Add
`WITHCOUNT` support to `FT.AGGREGATE`
* [#7862](RediSearch/RediSearch#7862) Add
support for subquery `COUNT` in `FT.HYBRID`
* [#8087](RediSearch/RediSearch#8087) Add
warnings when cursor results may be affected by ASM and expose ASM
warnings in `FT.PROFILE`
* [#8049](RediSearch/RediSearch#8049) Add
logging for index-related commands
* [#8150](RediSearch/RediSearch#8150) Fix shard
total profile time reporting in `FT.PROFILE`
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