Enhancementsedit
- CCR
-
- Prevent snapshot backed indices to be followed using CCR #70580
- Features/Data streams
- Machine Learning
-
- Make ML native processes work with glibc 2.33 on x86_64 #1828
- Snapshot/Restore
-
- Adapt frozen write buffer and thread pool #71172
- Add CFS index caching support for
full_copy
searchable snapshots #70646 - Adjust the length of blob cache docs for Lucene metadata files #69431 (issue: #69283)
- Always use
CacheService
for caching metadata blobs #70668 (issues: #70728, #70763) - Lazily load soft-deletes for searchable snapshot shards #69203
Bug fixesedit
- Aggregations
-
- Fix percentiles agg in slow log after transport #70318
- Analysis
- CRUD
- Cluster Coordination
-
- Fully initialize cluster state on ephemeral nodes #71466
- Features/Features
- Features/ILM+SLM
-
- Delete data stream in ILM delete action if last index in data stream #69637
- Features/Ingest
-
- Fix handling of non-integer port values in
community_id
processor #70148 (issue: #70131) - Fix typo in validation for destination port of community ID processor #70883
- Templates match indices with date math expressions #71433 (issue: #69727)
- URI parts processor handles URLs containing spaces #71559 (issue: #70947)
- Fix handling of non-integer port values in
- Features/Stats
- Features/Watcher
-
- Enable setting master node timeout in Watcher start/stop requests #70425
- Geo
- Infra/Core
-
- Always wrap date parsing exception into
IllegalArgumentException
#71038
- Always wrap date parsing exception into
- Infra/Scripting
- Machine Learning
- Mapping
- SQL
-
- Enforce and document dedicated client version compatibility #70451 (issue: #70400)
- Fix manifest version tag in Tableau connector #71524
- Resolve attributes recursively for improved subquery support #69765 (issue: #67237)
- Verify binary fields found in non-project to have the
doc_values
#69128 (issue: #68229)
- Search
- Snapshot/Restore
-
- Avoid atomic overwrite tests on FS repositories #70483 (issue: #70303)
- Drop alloc filters on mount of searchable snapshot #70007 (issue: #69759)
- Fix source only snapshot permanently broken on broken
_snapshot
directory #71459 - Fix
isDedicatedVotingOnlyNode
#71358 (issue: #71352) - Fix human readable xcontent for snapshots in progress and deletion #70256
- Fix wrongly computed offset in checksum #69441 (issues: #69415, #69437)
- Only allocate partial shards to nodes with cache #69904
- Optimized read footer checksum from
FileInfo
#69415 - Reduce memory use of parallel Azure blob deletes #71330 (issue: #71267)
- Stop blocking snapshot deletes due to concurrency limits #71050
转自 https://www.elastic.co/guide/en/elasticsearch/reference/current/release-notes-7.12.1.html