Issues

• [BUG] [ML] Deployment of text embedding msmarco-distilbert-base-tas-b fails in CPU only cluster

  bugPluginsuntriaged
  opensearch-project/OpenSearch#23219 · Filter by author chberti opened on Oct 2, 2026
  1

• [BUG] Adaptive Replica Selection can persistently prefer a reconnected / restarted data node with DFS_QUERY_THEN_FETCH and dedicated coordinators

  bugSearch:Performanceuntriaged
  opensearch-project/OpenSearch#23204 · Filter by author p1trson opened on Oct 1, 2026

• Use bulk iteration for index-sorted scroll ranges

  untriaged
  opensearch-project/OpenSearch#23199 · Filter by author AndreKurait opened on Oct 1, 2026

• [BUG] _field_caps with index_filter silently omits indices whose shards could not be checked

  Searchuntriaged
  opensearch-project/OpenSearch#23193 · Filter by author ahkcs opened on Sep 30, 2026

• [Parquet] Sustained bulk ingest into a composite index with index.sort.field fails the shard with a native allocator out-of-memory

  buguntriaged
  opensearch-project/OpenSearch#23187 · Filter by author linuxpi opened on Sep 30, 2026

• [Analytics/DataFusion] Sort on an index-sorted Parquet shard returns wrong null order: declared file ordering ignores index.sort.missing

  buguntriaged
  opensearch-project/OpenSearch#23186 · Filter by author linuxpi opened on Sep 30, 2026

• Avoid stale feature types in the auto-tagging registry

  Search:Workload Managementuntriaged
  opensearch-project/OpenSearch#23177 · Filter by author dzane17 opened on Sep 29, 2026

• RFC: Native Document-Vector Lookup with Graph-Aware Candidate Routing for k-NN

  enhancementSearchuntriaged
  opensearch-project/OpenSearch#23173 · Filter by author sumantapakira opened on Sep 29, 2026
  2

• [BUG] Radial KNN search with date range - inconsistent results

  bugSearchuntriaged
  opensearch-project/OpenSearch#23170 · Filter by author work-account637 opened on Sep 29, 2026
  1

• [Feature Request] Make the histogram aggregation in telemetry-otel configurable (exponential histograms are rejected by common OTLP receivers)

  Other (telemetry / telemetry-otel plugin)untriaged
  opensearch-project/OpenSearch#23166 · Filter by author DdangJin opened on Sep 29, 2026
  2

• [PERFORMANCE] max_clause_count unexpectedly changes keyword-sort latency since 2.12; persists in 3.8

  bugSearch:Performance
  opensearch-project/OpenSearch#23162 · Filter by author camerondurham opened on Sep 29, 2026
  1

• [Feature Request] Modernize Thai Language Analysis in modules/analysis-common

  Search:Relevance
  opensearch-project/OpenSearch#23151 · Filter by author kamthorn opened on Sep 28, 2026
  4

• [RELEASE] Release version 3.10.0

  untriagedv3.10.0
  opensearch-project/OpenSearch#23149 · Filter by author opensearch-ci-bot opened on Sep 28, 2026

• [RFC] Remove the experimental views feature from OpenSearch

  RFCuntriaged
  Feature

  opensearch-project/OpenSearch#23145 · Filter by author peternied opened on Sep 26, 2026
  2

  

• [RFC] Pressure-Driven Full-File Demotion for Writable Warm Indexes

  enhancementIndexing:Performanceuntriaged
  opensearch-project/OpenSearch#23141 · Filter by author RamakrishnaChilaka opened on Sep 25, 2026

• [BUG] Remote store segment upload fails with NullPointerException when an S3-compatible endpoint does not return a CRC32 checksum on UploadPart

  bugStorage:Remoteuntriaged
  opensearch-project/OpenSearch#23128 · Filter by author razvan opened on Sep 24, 2026

• [BUG] WLM: Breaking schema change of search_settings to settings causes upgrade failure from 3.6.0 to 3.7.0

  bugPluginsuntriaged
  opensearch-project/OpenSearch#23122 · Filter by author cinhtau opened on Sep 23, 2026
  3

• [Remote Store] Full remote translog is downloaded twice (and wiped between) during primary relocation handoff

  bugResiliencyStorage:Remote
  opensearch-project/OpenSearch#23111 · Filter by author linuxpi opened on Sep 22, 2026
  5

• [BUG] filter aggregation with now date math intermittently fails with "DateRangeIncludingNowQuery ... does not implement createWeight" under concurrent segment search

  bugSearch:Aggregations
  opensearch-project/OpenSearch#23104 · Filter by author marevol opened on Sep 21, 2026
  1

  

• [Feature Request] Record per-row reduced sort-key bounds for LIST sort fields so segment chain / sort-aware scan can fire

  enhancementuntriaged
  opensearch-project/OpenSearch#23095 · Filter by author linuxpi opened on Sep 19, 2026

• [Feature Request] Support configuring universe_domain in repository-gcs for Google Cloud trusted cloud environments

  enhancementPluginsuntriaged
  opensearch-project/OpenSearch#23083 · Filter by author ipierre1 opened on Sep 18, 2026

• [RFC] Tiered remote-store recovery: serve reads through block fetches while hydrating

  discussenhancementStorage:Remoteuntriaged
  opensearch-project/OpenSearch#23066 · Filter by author gbbafna opened on Sep 17, 2026

• [BUG] Direct buffer OOM on many-core nodes: CopyBytesSocketChannel pins 1MB per IO thread

  bugOtheruntriaged
  opensearch-project/OpenSearch#23064 · Filter by author zhuang-keju opened on Sep 17, 2026
  1

• [BUG][Sandbox] Distributed sort+head on multi_value keyword intermittently returns an empty LIST for a fetched document

  buguntriaged
  opensearch-project/OpenSearch#23061 · Filter by author linuxpi opened on Sep 17, 2026

• [BUG][Sandbox] dc() over a multi_value keyword fails: approx_distinct not implemented for List

  buguntriaged
  opensearch-project/OpenSearch#23059 · Filter by author linuxpi opened on Sep 17, 2026