IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Elasticsearch version 7.5.0
editElasticsearch version 7.5.0
editAlso see Breaking changes in 7.5.
Known issues
edit- Applying deletes or updates on an index after it has been shrunk may corrupt the index. In order to prevent this issue, it is recommended to stop shrinking read-write indices. For read-only indices, it is recommended to force-merge indices after shrinking, which significantly reduces the likeliness of this corruption in the case that deletes/updates would be applied by mistake. This bug is fixed in Elasticsearch 7.7 and later versions. More details can be found on the corresponding issue.
- Stop all transforms during a rolling upgrade to 7.5. If a transform is running during upgrade, the transform audit index might disappear. (issue: #49730)
-
Indices created in 6.x with
date
anddate_nanos
fields using formats that are incompatible with java.time patterns will cause parsing errors, incorrect date calculations or wrong search results. https://github.com/elastic/elasticsearch/pull/52555 This is fixed in Elasticsearch 7.7 and later versions.
Breaking changes
editDeprecations
edit- Aggregations
- Allocation
- Mapping
- Search
New features
edit- Features/ILM+SLM
- Features/Ingest
- Machine Learning
- SQL
-
- SQL: Implement DATEDIFF function #47920 (issue: #47919)
- SQL: Implement DATEADD function #47747 (issue: #47746)
- SQL: Implement DATE_PART function #47206 (issue: #46372)
- SQL: Add alias DATETRUNC to DATE_TRUNC function #47173 (issue: #46473)
- SQL: Add PIVOT support #46489
- SQL: Implement DATE_TRUNC function #46473 (issue: #46319)
Enhancements
edit- Aggregations
- Allocation
- Authorization
- CCR
- CRUD
-
- Allow optype CREATE for append-only indexing operations #47169
- Cluster Coordination
- Engine
-
- Do not warm up searcher in engine constructor #48605 (issue: #47186)
- Refresh should not acquire readLock #48414 (issue: #47186)
- Avoid unneeded refresh with concurrent realtime gets #47895
- sync before trimUnreferencedReaders to improve index preformance #47790 (issues: #46201, #46203)
- Limit number of retaining translog files for peer recovery #47414
- Remove isRecovering method from Engine #47039
- Features/ILM+SLM
-
- Separate SLM stop/start/status API from ILM #47710 (issue: #43663)
- Set default SLM retention invocation time #47604 (issue: #43663)
- ILM: Skip rolling indexes that are already rolled #47324 (issue: #44175)
- Add support for POST requests to SLM Execute API #47061
- Wait for snapshot completion in SLM snapshot invocation #47051 (issues: #38461, #43663)
- Add node setting for disabling SLM #46794 (issue: #38461)
- ILM: parse origination date from index name #46755 (issues: #42449, #46561)
- [ILM] Add date setting to calculate index age #46561 (issue: #42449)
- Features/Ingest
-
- Add the ability to require an ingest pipeline #46847
- Features/Java High Level REST Client
- Features/Java Low Level REST Client
- Features/Monitoring
-
- Remove hard coded version_created in default monitoring alerts #47744
- Infra/Circuit Breakers
- Infra/Core
- Infra/Packaging
- Infra/Scripting
-
- Add explanations to script score queries #46693
- Infra/Settings
- Machine Learning
-
- Throw an exception when memory usage estimation endpoint encounters empty data frame. #49143 (issue: #49140)
- Change format of MulticlassConfusionMatrix result to be more self-explanatory #48174 (issue: #46735)
- Make num_top_classes parameter’s default value equal to 2 #48119 (issue: #46735)
- [ML] Add option to stop datafeed that finds no data #47922
- Allow integer types for classification’s dependent variable #47902 (issue: #46735)
- [ML] Add lazy assignment job config option #47726
- [ML] Additional outlier detection parameters #47600
- [ML] More accurate job memory overhead #47516
- [ML] Throttle the delete-by-query of expired results #47177 (issues: #47003, #47103)
- Mapping
- Network
- Recovery
- SQL
-
- SQL: make date/datetime and interval types compatible in conditional functions #47595 (issue: #46674)
- SQL: use calendar interval of 1y instead of fixed interval for grouping by YEAR and HISTOGRAMs #47558 (issue: #40162)
- SQL: Support queries with HAVING over SELECT #46709 (issue: #37051)
- SQL: Add support for shape type #46464 (issues: #43644, #46412)
- Search
-
- Remove response search phase from ExpandSearchPhase #48401
- Add builder for distance_feature to QueryBuilders #47846 (issue: #47767)
- Fold InitialSearchPhase into AbstractSearchAsyncAction #47182
- max_children exist only in top level nested sort #46731
- First round of optimizations for vector functions. #46294 (issues: #45390, #45936, #46103, #46155, #46190, #46202)
-
Throw exception in scroll requests using
from
#46087 (issues: #26235, #44493, #9373)
- Snapshot/Restore
- Transform
Bug fixes
edit- Aggregations
- Allocation
- Analysis
- Audit
- Authentication
-
- Add owner flag parameter to the rest spec #48500 (issue: #48499)
- Add populate_user_metadata in OIDC realm #48357 (issue: #48217)
- Remove unnecessary details logged for OIDC #48271
- Fix AD realm additional metadata #47179 (issue: #45848)
- Fallback to realm authc if ApiKey fails #46538
- PKI realm accept only verified certificates #45590
- Authorization
-
- Fix security origin for TokenService#findActiveTokensFor… #47418 (issue: #47151)
- Use should clause instead of filter when querying native privileges #47019
- Do not rewrite aliases on remove-index from aliases requests #46989
- Validate index and cluster privilege names when creating a role #46361 (issue: #29703)
-
Validate
query
field when creating roles #46275 (issue: #34252)
- CCR
- CRUD
- Client
-
- Correct default refresh policy for security APIs #46896
- Cluster Coordination
- Distributed
- Engine
- Features/ILM+SLM
-
- Don’t halt policy execution on policy trigger exception #49128
- Don’t schedule SLM jobs when services have been stopped #48658 (issue: #47749)
- Ensure SLM stats does not block an in-place upgrade from 7.4 #48367
- Ensure SLM stats does not block an in-place upgrade from 7.4 #48361
- Add SLM support to xpack usage and info APIs #48096 (issue: #43663)
- Change policy_id to list type in slm.get_lifecycle #47766 (issue: #47765)
- Throw error retrieving non-existent SLM policy #47679 (issue: #47664)
- Handle partial failure retrieving segments in SegmentCountStep #46556
- Fixes for API specification #46522
- Features/Indices APIs
- Features/Ingest
- Features/Java High Level REST Client
-
- fix incorrect comparison #48208
- Fix ILM HLRC Javadoc→Documentation links #48083
- Change HLRC count request to accept a QueryBuilder #46904 (issue: #46829)
- [HLRC] Send min_score as query string parameter to the count API #46829 (issue: #46474)
- HLRC multisearchTemplate forgot params #46492 (issue: #46488)
- Added fields for MultiTermVectors (#42232) #42877 (issue: #42232)
- Features/Java Low Level REST Client
- Features/Monitoring
- Features/Watcher
- Geo
-
- Geo: implement proper handling of out of bounds geo points #47734 (issue: #43916)
- Geo: Fixes indexing of linestrings that go around the globe #47471 (issues: #43826, #43837)
- Provide better error when updating geo_shape field mapper settings #47281 (issue: #47006)
- Geo: fix indexing of west to east linestrings crossing the antimeridian #46601 (issue: #43775)
- Reset queryGeometry in ShapeQueryTests #45974 (issue: #45628)
- Highlighting
- Infra/Core
- Infra/Logging
- Infra/Scripting
- Machine Learning
-
- [ML] Fixes for stop datafeed edge cases #49191 (issues: #43670, #48931)
- [ML] Avoid NPE when node load is calculated on job assignment #49186 (issue: #49150)
- Do not throw exceptions resulting from persisting datafeed timing stats. #49044 (issue: #49032)
- [ML] Deduplicate multi-fields for data frame analytics #48799 (issues: #48756, #48770)
- [ML] Prevent fetching multi-field from source #48770 (issue: #48756)
- [ML] Fix detection of syslog-like timestamp in find_file_structure #47970
- Fix serialization of evaluation response. #47557
- [ML] Reinstate ML daily maintenance actions #47103 (issue: #47003)
- [ML] fix two datafeed flush lockup bugs #46982
- Network
- Recovery
-
- Ignore Lucene index in peer recovery if translog corrupted #49114
- Reindex
-
- Fix issues with serializing BulkByScrollResponse #45357
- SQL
-
- SQL: Fix issue with mins & hours for DATEDIFF #49252
- SQL: Fix issue with negative literels and parentheses #48113 (issue: #48009)
- SQL: add "format" for "full" date range queries #48073 (issue: #48033)
- SQL: Fix arg verification for DateAddProcessor #48041
- SQL: Fix Nullability of DATEADD #47921
- SQL: Allow whitespaces in escape patterns #47577 (issue: #47401)
- SQL: fix multi full-text functions usage with aggregate functions #47444 (issue: #47365)
- SQL: Check case where the pivot limit is reached #47121 (issue: #47002)
- SQL: Properly handle indices with no/empty mapping #46775 (issue: #46757)
- SQL: improve ResultSet behavior when no rows are available #46753 (issue: #46750)
- SQL: use the correct data type for types conversion #46574 (issue: #46090)
- SQL: Fix issue with common type resolution #46565 (issue: #46551)
- SQL: fix scripting for grouped by datetime functions #46421 (issue: #40241)
- SQL: Use null schema response #46386 (issue: #46381)
- SQL: Fix issue with IIF function when condition folds #46290 (issue: #46268)
- SQL: Fix issue with DataType for CASE with NULL #46173 (issue: #46032)
- SQL: Failing Group By queries due to different ExpressionIds #43072 (issues: #33361, #34543, #36074, #37044, #40001, #40240, #41159, #42041, #46316)
- SQL: wrong number of values for columns #42122
- Search
-
- Lucene#asSequentialBits gets the leadCost backwards. #48335
- Ensure that we don’t call listener twice when detecting a partial failures in _search #47694
- Fix alias field resolution in match query #47369
- Multi-get requests should wait for search active #46283 (issue: #27500)
- Resolve the incorrect scroll_current when delete or close index #45226
- Don’t apply the plugin’s reader wrapper in can_match phase #47816 (issue: #46817)
- Security
- Snapshot/Restore
-
- Fix RepoCleanup not Removed on Master-Failover #49217
- Make FsBlobContainer Listing Resilient to Concurrent Modifications #49142 (issue: #37581)
- Fix SnapshotShardStatus Reporting for Failed Shard #48556 (issue: #48526)
- Cleanup Concurrent RepositoryData Loading #48329 (issue: #48122)
- Fix Bug in Azure Repo Exception Handling #47968
- Make loadShardSnapshot Exceptions Consistent #47728 (issue: #47507)
- Fix Snapshot Corruption in Edge Case #47552 (issues: #46250, #47550)
- Fix Bug in Snapshot Status Response Timestamps #46919 (issue: #46913)
- Normalize Blob Store Repo Paths #46869 (issue: #41814)
- GCS deleteBlobsIgnoringIfNotExists should catch StorageException #46832 (issue: #46772)
- Execute SnapshotsService Error Callback on Generic Thread #46277
- Make Snapshot Logic Write Metadata after Segments #45689 (issue: #41581)
- Store
-
- Allow truncation of clean translog #47866
- Task Management
-
- Fix .tasks index strict mapping: parent_id should be parent_task_id #48393
- Transform
-
- [Transform] do not fail checkpoint creation due to global checkpoint mismatch #48423 (issue: #48379)
- [7.5][Transform] prevent assignment if any node is older than 7.4 #48055 (issue: #48019)
- [Transform] prevent assignment to nodes older than 7.4 #48044 (issue: #48019)
- [ML][Transforms] fix bwc serialization with 7.3 #48021
- [ML][Transforms] signal listener early on task _stop failure #47954
- [ML][Transform] Use field_caps API for mapping deduction #46703 (issue: #46694)
- [ML-DataFrame] Fix off-by-one error in checkpoint operations_behind #46235
Regressions
edit- Aggregations
- Infra/Core