[8.2] fix: remove draining from Flush callback#7470
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redisearch-backport-pull-request[bot] merged 2 commits into8.2from Nov 26, 2025
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[8.2] fix: remove draining from Flush callback#7470redisearch-backport-pull-request[bot] merged 2 commits into8.2from
redisearch-backport-pull-request[bot] merged 2 commits into8.2from
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* fix: remove draining from Flush callback * test: add test for query while flushall * improve testing with workers * improve test (cherry picked from commit e56bf5b)
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## 8.2 #7470 +/- ##
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Coverage 89.47% 89.47%
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Files 253 253
Lines 40915 40914 -1
Branches 3725 3725
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+ Hits 36607 36608 +1
+ Misses 4259 4257 -2
Partials 49 49
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alonre24
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**Bug Fixes:** * [redis#7219](RediSearch/RediSearch#7219) Fix a concurrency issue on Reducer in `FT.AGGREGATE` * [redis#7255](RediSearch/RediSearch#7255) Fix `BM25STD` underflow wraparound * [redis#7275](RediSearch/RediSearch#7275) Report used memory as `unsigned long long` to avoid underflows * [redis#7264](RediSearch/RediSearch#7264) Fix `totalDocsLen` updates * [redis#6995](RediSearch/RediSearch#6995) Do not fanout `FT.INFO` to replicas * [redis#7350](RediSearch/RediSearch#7350) Fix `FT.CREATE` failure with LeanVec parameters on non-Intel architectures * [redis#7384](RediSearch/RediSearch#7384) Fix index load from RDB temporary memory overhead * [redis#7459](RediSearch/RediSearch#7459) Fix Fork GC potential double-free on error path * [redis#7458](RediSearch/RediSearch#7458) Fix a GC performence regression * [redis#7470](RediSearch/RediSearch#7470) Avoid draining worker thread pool from FLUSH callback to avoid deadlocks * [redis#7554](RediSearch/RediSearch#7554) Handle the case where `SCORE` is sent alone without extra fields (coordinator) * [redis#7685](RediSearch/RediSearch#7685) Fix cursor logical leak * [redis#7794](RediSearch/RediSearch#7794) Fix `cmp_strings()` to correctly handle binary data with embedded NULLs in TOLIST reducer in FT.AGGREGATE * [redis#7873](RediSearch/RediSearch#7873) Handle warnings in empty `FT.AGGREGATE` replies (cluster) * [redis#7886](RediSearch/RediSearch#7886) Remove non-TEXT fields from the spec keys dictionary * [redis#7904](RediSearch/RediSearch#7904) Refactor keys dictionary handling * [redis#7901](RediSearch/RediSearch#7901) Support multiple warnings in reply * [redis#8083](RediSearch/RediSearch#8083) Fix incorrect FULLTEXT field metric counts * [redis#8153](RediSearch/RediSearch#8153) Fix configuration registration issues **Improvements:** * [redis#7154](RediSearch/RediSearch#7154) `FT.AGGREGATE` can return Background Indexing OOM warnings * [redis#7083](RediSearch/RediSearch#7083) Add the default text scorer as a configuration option * [redis#7341](RediSearch/RediSearch#7341) Rename `FT.PROFILE` counter fields * [redis#7436](RediSearch/RediSearch#7436) Enhance `FT.PROFILE` with vector search execution details * [redis#7435](RediSearch/RediSearch#7435) Ensure full `FT.PROFILE` output on timeout with RETURN policy * [redis#7534](RediSearch/RediSearch#7534) Reduce the number of worker threads asynchronously to avoid deadlocks during queries * [redis#7614](RediSearch/RediSearch#7614) Track timeout warnings and errors in INFO * [redis#7646](RediSearch/RediSearch#7646) Track `maxprefixexpansions` warnings and errors in INFO * [redis#7577](RediSearch/RediSearch#7577) Track query syntax/argument errors (basis for query error tracking) * [redis#7737](RediSearch/RediSearch#7737) Add `Internal cursor reads` metric to cluster `FT.PROFILE` output * [redis#7759](RediSearch/RediSearch#7759) Extend indexing metrics * [redis#7710](RediSearch/RediSearch#7710) Support `WITHCOUNT` keyword in `FT.AGGREGATE` * [redis#7957](RediSearch/RediSearch#7957) Persist query warnings across cursor reads * [redis#8054](RediSearch/RediSearch#8054) Add logging for index-related commands * [redis#8151](RediSearch/RediSearch#8151) Fix shard total profile time reporting in `FT.PROFILE` * [redis#8103](RediSearch/RediSearch#8103) Output current thread IndexSpec information on crash
YaacovHazan
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Jan 26, 2026
**Bug Fixes:** * [#7219](RediSearch/RediSearch#7219) Fix a concurrency issue on Reducer in `FT.AGGREGATE` * [#7255](RediSearch/RediSearch#7255) Fix `BM25STD` underflow wraparound * [#7275](RediSearch/RediSearch#7275) Report used memory as `unsigned long long` to avoid underflows * [#7264](RediSearch/RediSearch#7264) Fix `totalDocsLen` updates * [#6995](RediSearch/RediSearch#6995) Do not fanout `FT.INFO` to replicas * [#7350](RediSearch/RediSearch#7350) Fix `FT.CREATE` failure with LeanVec parameters on non-Intel architectures * [#7694](RediSearch/RediSearch#7694) Use asynchronous jobs for GC in SVS to accelerate execution * [#7384](RediSearch/RediSearch#7384) Fix index load from RDB temporary memory overhead * [#7459](RediSearch/RediSearch#7459) Fix Fork GC potential double-free on error path * [#7458](RediSearch/RediSearch#7458) Fix a GC performence regression * [#7470](RediSearch/RediSearch#7470) Avoid draining worker thread pool from FLUSH callback to avoid deadlocks * [#7554](RediSearch/RediSearch#7554) Handle the case where `SCORE` is sent alone without extra fields (coordinator) * [#7685](RediSearch/RediSearch#7685) Fix cursor logical leak * [#7794](RediSearch/RediSearch#7794) Fix `cmp_strings()` to correctly handle binary data with embedded NULLs in TOLIST reducer in FT.AGGREGATE * [#7873](RediSearch/RediSearch#7873) Handle warnings in empty `FT.AGGREGATE` replies (cluster) * [#7886](RediSearch/RediSearch#7886) Remove non-TEXT fields from the spec keys dictionary * [#7904](RediSearch/RediSearch#7904) Refactor keys dictionary handling * [#7901](RediSearch/RediSearch#7901) Support multiple warnings in reply * [#8083](RediSearch/RediSearch#8083) Fix incorrect FULLTEXT field metric counts * [#8153](RediSearch/RediSearch#8153) Fix configuration registration issues **Improvements:** * [#7154](RediSearch/RediSearch#7154) `FT.AGGREGATE` can return Background Indexing OOM warnings * [#7083](RediSearch/RediSearch#7083) Add the default text scorer as a configuration option * [#7341](RediSearch/RediSearch#7341) Rename `FT.PROFILE` counter fields * [#7436](RediSearch/RediSearch#7436) Enhance `FT.PROFILE` with vector search execution details * [#7435](RediSearch/RediSearch#7435) Ensure full `FT.PROFILE` output on timeout with RETURN policy * [#7534](RediSearch/RediSearch#7534) Reduce the number of worker threads asynchronously to avoid deadlocks during queries * [#7614](RediSearch/RediSearch#7614) Track timeout warnings and errors in INFO * [#7646](RediSearch/RediSearch#7646) Track `maxprefixexpansions` warnings and errors in INFO * [#7577](RediSearch/RediSearch#7577) Track query syntax/argument errors (basis for query error tracking) * [#7737](RediSearch/RediSearch#7737) Add `Internal cursor reads` metric to cluster `FT.PROFILE` output * [#7759](RediSearch/RediSearch#7759) Extend indexing metrics * [#7710](RediSearch/RediSearch#7710) Support `WITHCOUNT` keyword in `FT.AGGREGATE` * [#7957](RediSearch/RediSearch#7957) Persist query warnings across cursor reads * [#8054](RediSearch/RediSearch#8054) Add logging for index-related commands * [#8151](RediSearch/RediSearch#8151) Fix shard total profile time reporting in `FT.PROFILE` * [#8103](RediSearch/RediSearch#8103) Output current thread IndexSpec information on crash
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Description
Backport of #7420 to
8.2.Note
Removes
workersThreadPool_Drainfrom the FLUSHDB callback and adds a test that exercises concurrent queries duringFLUSHALL.workersThreadPool_Drain(ctx, 0)fromonFlushinsrc/spec.c.tests/pytests/test_query_while_flush.pyto stress concurrentFT.SEARCHduringFLUSHALL, validating error/success counts and new index behavior post-flush.Written by Cursor Bugbot for commit e89e411. This will update automatically on new commits. Configure here.