Elasticsearch version 7.17.1

Elasticsearch version 7.17.1

Also see Breaking changes in 7.17.

Known issues

  • Parsing a request when the last element in an array is filtered out (for instance using _source_includes) fails. This is due to a bug in Jackson parser. Fixed in Elasticsearch 8.6.1 (#91456)
  • The deprecated index.mapper.dynamic setting can break your cluster. It can only be set using the Update index settings API. Symptoms include nodes failing to start or shards failing to allocate. Do not use this setting in versions prior to 7.17.22. The bug is fixed in 7.17.22. (issue: #109160)

Deprecations

Infra/Core

  • Deprecation info API for camel case date formats #83839

Enhancements

Authorization

  • Use same system index pattern in restricted names #84180

Infra/REST API

  • Update YAML REST tests to check for product header on all responses #83290

Recovery

  • Adjust indices.recovery.max_bytes_per_sec according to external settings #82819

Transform

  • Surface script deprecation warnings in deprecation info API #84040 (issue: #82936)

Bug fixes

Aggregations

Autoscaling

  • Fix autoscaling of follower data streams #83302 (issue: #82857)

Discovery-Plugins

  • Correcly handle large GCE zones with 500 or more instances #83785 (issue: #83783)

Geo

  • GeometryNormalizer should not fail if it cannot compute signed area #84051 (issue: #83946)

ILM+SLM

  • Do not allow negative age in ILM explain #84043

Infra/Core

  • Always re-run Feature migrations which have encountered errors #83918 (issue: #83917)
  • Copy trace.id in threadcontext stash #83218 (issue: #81381)
  • Correctly migrate system indices that are still using named types #83817 (issue: #83779)
  • Register Feature migration persistent task state named XContent #84192 (issue: #84115)
  • Update system index metadata if _meta is null #83896 (issue: #83890)

Infra/Scripting

  • Fix deprecated suggestions for JodaCompatibleZonedDateTime #83276

Ingest

  • Fix GeoIpDownloader startup during rolling upgrade #84000
  • Short circuit date patterns after first match #83764 (issue: #73918)

Machine Learning

  • Fix bug where initial scale from 0→1 could scale too high #84244
  • Retry anomaly detection job recovery during relocation #83456
  • Address cause of “[CStatisticalTests.cc@102] Test statistic is nan” log errors #2196
  • Address possible causes of “x = NaN, distribution = N5boost4math23students_t_distribution” log errors #2197
  • Fix bug restoring data gatherer state for time of day and week anomaly detection functions #2213

Recovery

  • Add missing indices.recovery.internal_action_retry_timeout to list of settings #83354 (issue: #55353)

SQL

  • Fix txt format for empty result sets #83376 (issue: #83371)

Search

  • Avoid eagerly loading StoredFieldsReader in fetch phase #83693 (issue: #82777)
  • Do not deserialise the document when not needed in the fields fetch phase #84184
  • Returns valid PIT when no index matched #83424

Transform

  • Prevent stopping of transforms due to threadpool limitation #81912 (issue: #81796)

Upgrades

Geo

  • Update vector tiles google protobuf to 3.16.1 #83402

Packaging

Transform