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CHANGELOG

All notable changes to this project are documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning. See the CONTRIBUTING guide for instructions on how to add changelog entries.

Unreleased 3.0

Added

  • Support for HTTP/2 (server-side) (#3847)
  • Add getter for path field in NestedQueryBuilder (#4636)
  • Allow mmap to use new JDK-19 preview APIs in Apache Lucene 9.4+ (#5151)
  • Add events correlation engine plugin (#6854)
  • Implement on behalf of token passing for extensions (#8679, #10664)
  • Provide service accounts tokens to extensions (#9618)
  • [AdmissionControl] Added changes for AdmissionControl Interceptor and AdmissionControlService for RateLimiting (#9286)
  • GHA to verify checklist items completion in PR descriptions (#10800)
  • Allow to pass the list settings through environment variables (like [], ["a", "b", "c"], ...) (#10625)
  • [Admission Control] Integrate CPU AC with ResourceUsageCollector and add CPU AC stats to nodes/stats (#10887)

Dependencies

  • Bump log4j-core from 2.18.0 to 2.19.0
  • Bump forbiddenapis from 3.3 to 3.4
  • Bump avro from 1.11.1 to 1.11.2
  • Bump woodstox-core from 6.3.0 to 6.3.1
  • Bump xmlbeans from 5.1.0 to 5.1.1 (#4354)
  • Bump reactor-netty-core from 1.0.19 to 1.0.22 (#4447)
  • Bump reactive-streams from 1.0.3 to 1.0.4 (#4488)
  • Bump jempbox from 1.8.16 to 1.8.17 (#4550)
  • Update to Gradle 7.6 and JDK-19 (#4973)
  • Update Apache Lucene to 9.5.0-snapshot-d5cef1c (#5570)
  • Bump maven-model from 3.6.2 to 3.8.6 (#5599)
  • Bump maxmind-db from 2.1.0 to 3.0.0 (#5601)
  • Bump wiremock-jre8-standalone from 2.33.2 to 2.35.0
  • Bump gson from 2.10 to 2.10.1
  • Bump com.google.code.gson:gson from 2.10 to 2.10.1
  • Bump com.maxmind.geoip2:geoip2 from 4.0.0 to 4.0.1
  • Bump com.avast.gradle:gradle-docker-compose-plugin from 0.16.11 to 0.16.12
  • Bump org.apache.commons:commons-configuration2 from 2.8.0 to 2.9.0
  • Bump com.netflix.nebula:nebula-publishing-plugin from 19.2.0 to 20.3.0
  • Bump io.opencensus:opencensus-api from 0.18.0 to 0.31.1 (#7291)
  • OpenJDK Update (April 2023 Patch releases) (#7344
  • Bump com.google.http-client:google-http-client:1.43.2 from 1.42.0 to 1.43.2 (7928))
  • Add Opentelemetry dependencies (#7543)
  • Bump org.bouncycastle:bcprov-jdk15on to org.bouncycastle:bcprov-jdk15to18 version 1.75 (#8247)
  • Bump org.bouncycastle:bcmail-jdk15on to org.bouncycastle:bcmail-jdk15to18 version 1.75 (#8247)
  • Bump org.bouncycastle:bcpkix-jdk15on to org.bouncycastle:bcpkix-jdk15to18 version 1.75 (#8247)
  • Bump JNA version from 5.5 to 5.13 (#9963)
  • Bump org.eclipse.jgit from 6.5.0 to 6.7.0 (#10147)
  • Bump OpenTelemetry from 1.30.1 to 1.31.0 (#10617)
  • Bump OpenTelemetry from 1.31.0 to 1.32.0 and OpenTelemetry Semconv from 1.21.0-alpha to 1.23.1-alpha (#11305)

Changed

  • [CCR] Add getHistoryOperationsFromTranslog method to fetch the history snapshot from translogs (#3948)
  • Relax visibility of the HTTP_CHANNEL_KEY and HTTP_SERVER_CHANNEL_KEY to make it possible for the plugins to access associated Netty4HttpChannel / Netty4HttpServerChannel instance (#4638)
  • Migrate client transports to Apache HttpClient / Core 5.x (#4459)
  • Change http code on create index API with bad input raising NotXContentException from 500 to 400 (#4773)
  • Improve summary error message for invalid setting updates (#4792)
  • Return 409 Conflict HTTP status instead of 503 on failure to concurrently execute snapshots (#8986)
  • Add task completion count in search backpressure stats API (#10028)
  • Deprecate CamelCase PathHierarchy tokenizer name in favor to lowercase path_hierarchy (#10894)
  • Switched to more reliable OpenSearch Lucene snapshot location(#11728)

Deprecated

Removed

  • Remove deprecated code to add node name into log pattern of log4j property file (#4568)
  • Unused object and import within TransportClusterAllocationExplainAction (#4639)
  • Remove LegacyESVersion.V_7_0_* and V_7_1_* Constants (#2768)
  • Remove LegacyESVersion.V_7_2_ and V_7_3_ Constants (#4702)
  • Always auto release the flood stage block (#4703)
  • Remove LegacyESVersion.V_7_4_ and V_7_5_ Constants (#4704)
  • Remove Legacy Version support from Snapshot/Restore Service (#4728)
  • Remove deprecated serialization logic from pipeline aggs (#4847)
  • Remove unused private methods (#4926)
  • Remove LegacyESVersion.V_7_8_ and V_7_9_ Constants (#4855)
  • Remove LegacyESVersion.V_7_6_ and V_7_7_ Constants (#4837)
  • Remove LegacyESVersion.V_7_10_ Constants (#5018)
  • Remove Version.V_1_ Constants (#5021)
  • Remove custom Map, List and Set collection classes (#6871)

Fixed

  • Fix 'org.apache.hc.core5.http.ParseException: Invalid protocol version' under JDK 16+ (#4827)
  • Fix compression support for h2c protocol (#4944)
  • Don't over-allocate in HeapBufferedAsyncEntityConsumer in order to consume the response (#9993)
  • Update supported version for max_shard_size parameter in Shrink API (#11439)
  • Fix typo in API annotation check message (11836)

Security

Unreleased 2.x

Added

  • [Admission control] Add Resource usage collector service and resource usage tracker (#9890)
  • [Admission control] Add enhancements to FS stats to include read/write time, queue size and IO time (#10541)
  • [Remote cluster state] Change file names for remote cluster state (#10557)
  • [Search Pipelines] Add request-scoped state shared between processors (and three new processors) (#9405)
  • Per request phase latency (#10351)
  • [Remote Store] Add repository stats for remote store(#10567)
  • [Remote cluster state] Upload global metadata in cluster state to remote store(#10404)
  • [Remote cluster state] Download functionality of global metadata from remote store (#10535)
  • [Remote cluster state] Restore global metadata from remote store when local state is lost after quorum loss (#10404)
  • [Remote cluster state] Make index and global metadata upload timeout dynamic cluster settings (#10814)
  • Add search query categorizer (#10255)
  • Per request phase latency (#10351)
  • Add cluster state stats (#10670)
  • [Tiered caching] Enabling serialization for IndicesRequestCache key object (#10275)
  • [Tiered caching] Defining interfaces, listeners and extending IndicesRequestCache with Tiered cache support (#10753)
  • [Remote cluster state] Restore cluster state version during remote state auto restore (#10853)
  • Update the indexRandom function to create more segments for concurrent search tests (10247)
  • Add support for query profiler with concurrent aggregation (#9248)
  • Introduce ConcurrentQueryProfiler to profile query using concurrent segment search path and support concurrency during rewrite and create weight (10352)
  • Implement on behalf of token passing for extensions (#8679)
  • Provide service accounts tokens to extensions (#9618)
  • [Streaming Indexing] Introduce new experimental server HTTP transport based on Netty 4 and Project Reactor (Reactor Netty) (#9672)
  • Enable must_exist parameter for update aliases API (#11210)
  • Add back half_float BKD based sort query optimization (#11024)
  • Request level coordinator slow logs (#10650)
  • Add template snippets support for field and target_field in KV ingest processor (#10040)
  • Allowing pipeline processors to access index mapping info by passing ingest service ref as part of the processor factory parameters (#10307)
  • Make number of segment metadata files in remote segment store configurable (#11329)
  • Allow changing number of replicas of searchable snapshot index (#11317)
  • Adding slf4j license header to LoggerMessageFormat.java (#11069)
  • [BWC and API enforcement] Introduce checks for enforcing the API restrictions (#11175)
  • Maintainer approval check (#11378)
  • Create separate transport action for render search template action (#11170)
  • Add additional handling in SearchTemplateRequest when simulate is set to true (#11591)
  • Introduce cluster level setting cluster.index.restrict.replication.type to prevent replication type setting override during index creations(#11583)
  • Add match_only_text field that is optimized for storage by trading off positional queries performance (#6836)
  • Introduce new feature flag "WRITEABLE_REMOTE_INDEX" to gate the writeable remote index functionality (#11717)

Dependencies

  • Bumps jetty version to 9.4.52.v20230823 to fix GMS-2023-1857 (#9822)
  • Bump Lucene from 9.7.0 to 9.8.0 (10276)
  • Bump commons-io:commons-io from 2.13.0 to 2.15.1 (#10294, #11001, #11002, #11446, #11554, #11560, #11796)
  • Bump com.google.api.grpc:proto-google-common-protos from 2.10.0 to 2.25.1 (#10208, #10298)
  • Bump com.netflix.nebula.ospackage-base from 11.4.0 to 11.6.0 (#10295, #11630)
  • Bump org.apache.zookeeper:zookeeper from 3.9.0 to 3.9.1 (#10506)
  • Bump de.thetaphi:forbiddenapis from 3.5.1 to 3.6 (#10508)
  • Bump org.codehaus.woodstox:stax2-api from 4.2.1 to 4.2.2 (#10639)
  • Bump org.bouncycastle:bc-fips from 1.0.2.3 to 1.0.2.4 (#10297)
  • Bump com.google.http-client:google-http-client from 1.43.2 to 1.43.3 (#10635)
  • Bump com.squareup.okio:okio from 3.5.0 to 3.7.0 (#10637, #11632)
  • Bump org.apache.logging.log4j:log4j-core from 2.20.0 to 2.22.1 (#10858, #11000, #11270, #11695)
  • Bump aws-actions/configure-aws-credentials from 2 to 4 (#10504)
  • Bump stefanzweifel/git-auto-commit-action from 4 to 5 (#11171)
  • Bump actions/github-script from 6 to 7 (#11271)
  • Bump jackson and jackson_databind from 2.15.2 to 2.16.0 (#11273)
  • Bump netty from 4.1.100.Final to 4.1.104.Final (#11294, #11775)
  • Bump com.avast.gradle:gradle-docker-compose-plugin from 0.16.12 to 0.17.6 (#10163, #11692)
  • Bump com.squareup.okhttp3:okhttp from 4.11.0 to 4.12.0 (#10861)
  • Bump org.apache.commons:commons-text from 1.10.0 to 1.11.0 (#11344)
  • Bump reactor-netty-core from 1.1.12 to 1.1.13 (#11350)
  • Bump com.gradle.enterprise from 3.14.1 to 3.16.1 (#11339, #11629)
  • Bump actions/setup-java from 3 to 4 (#11447)
  • Bump commons-net:commons-net from 3.9.0 to 3.10.0 (#11450)
  • Bump org.apache.maven:maven-model from 3.9.4 to 3.9.6 (#11445)
  • Bump org.apache.xmlbeans:xmlbeans from 5.1.1 to 5.2.0 (#11448)
  • Bump logback-core and logback-classic to 1.2.13 (#11521)
  • Bumps jetty version from 9.4.52.v20230823 to 9.4.53.v20231009 (#11539)
  • Bump org.wiremock:wiremock-standalone from 3.1.0 to 3.3.1 (#11555)
  • Bump org.apache.commons:commons-compress from 1.24.0 to 1.25.0 (#11556)
  • Bump actions/stale from 8 to 9 (#11557)
  • Bump com.netflix.nebula:nebula-publishing-plugin from 20.3.0 to 21.0.0 (#11671)
  • Bump commons-cli:commons-cli from 1.5.0 to 1.6.0 (#10996)
  • Bump com.maxmind.geoip2:geoip2 from 4.1.0 to 4.2.0 (#11559)
  • Bump org.apache.commons:commons-lang3 from 3.13.0 to 3.14.0 (#11691)
  • Bump com.maxmind.db:maxmind-db from 3.0.0 to 3.1.0 (#11693)
  • Bump net.java.dev.jna:jna from 5.13.0 to 5.14.0 (#11798)
  • Bump lycheeverse/lychee-action from 1.8.0 to 1.9.0 (#11795)
  • Bump Lucene from 9.8.0 to 9.9.1 (#11421)

Changed

  • Mute the query profile IT with concurrent execution (#9840)
  • Force merge with only_expunge_deletes honors max segment size (#10036)
  • Add the means to extract the contextual properties from HttpChannel, TcpCChannel and TrasportChannel without excessive typecasting (#10562), (#11751)
  • Introduce new dynamic cluster setting to control slice computation for concurrent segment search (#9107)
  • Search pipelines now support asynchronous request and response processors to avoid blocking on a transport thread (#10598)
  • [Remote Store] Add Remote Store backpressure rejection stats to _nodes/stats (#10524)
  • [BUG] Fix java.lang.SecurityException in repository-gcs plugin (#10642)
  • Add telemetry tracer/metric enable flag and integ test. (#10395)
  • Performance improvement for Datetime field caching (#4558)
  • Add instrumentation for indexing in transport bulk action and transport shard bulk action. (#10273)
  • Disallow removing some metadata fields by remove ingest processor (#10895, #11607)
  • Performance improvement for MultiTerm Queries on Keyword fields (#7057)
  • Refactor common parts from the Rounding class into a separate 'round' package (#11023)
  • Performance improvement for date histogram aggregations without sub-aggregations (#11083)
  • Disable concurrent aggs for Diversified Sampler and Sampler aggs (#11087)
  • Made leader/follower check timeout setting dynamic (#10528)
  • Improved performance of numeric exact-match queries (#11209)
  • Change error message when per shard document limit is breached (#11312)
  • Improve boolean parsing performance (#11308)
  • Interpret byte array as primitive using VarHandles (#11362)
  • Automatically add scheme to discovery.ec2.endpoint (#11512)
  • Restore support for Java 8 for RestClient (#11562)
  • Add deleted doc count in _cat/shards (#11678)
  • Capture information for additional query types and aggregation types (#11582)

Deprecated

Removed

  • Remove deprecated classes for Rounding (#10956)

Fixed

  • Fix failure in dissect ingest processor parsing empty brackets (#9225)
  • Fix class_cast_exception when passing int to _version and other metadata fields in ingest simulate API (#10101)
  • Fix Segment Replication ShardLockObtainFailedException bug during index corruption (10370)
  • Fix some test methods in SimulatePipelineRequestParsingTests never run and fix test failure (#10496)
  • Fix passing wrong parameter when calling newConfigurationException() in DotExpanderProcessor (#10737)
  • Delegating CachingWeightWrapper#count to internal weight object (#10543)
  • Fix per request latency last phase not tracked (#10934)
  • Fix SuggestSearch.testSkipDuplicates by forcing refresh when indexing its test documents (#11068)
  • [BUG] Fix the thread context that is not properly cleared and messes up the traces (#10873)
  • Handle canMatchSearchAfter for frozen context scenario (#11249)
  • Fix the issue with DefaultSpanScope restoring wrong span in the TracerContextStorage upon detach (#11316)
  • Remove shadowJar from lang-painless module publication (#11369)
  • Fix remote shards balancer and remove unused variables (#11167)
  • Fix parsing of flat object fields with dots in keys (#11425)
  • Fix bug where replication lag grows post primary relocation (#11238)
  • Fix for stuck update action in a bulk with retry_on_conflict property (#11152)
  • Fix template setting override for replication type (#11417)
  • Fix Automatic addition of protocol broken in #11512 (#11609)
  • Fix issue when calling Delete PIT endpoint and no PITs exist (#11711)
  • Fix tracing context propagation for local transport instrumentation (#11490)
  • Fix parsing of single line comments in lang-painless (#11815)

Security