Elasticsearch 1.4.0.Beta1

Release Notes

Breaking changes

  • Aggregations:
    • Only returned on the first page with scroll and forbidden with scan #7497 (issue: #1642)
  • Bulk UDP:
  • Circuit Breaker:
    • Add HierarchyCircuitBreakerService #6739 (issue: #6129)
  • Fielddata:
    • Remove soft/resident caches. #7443
  • Internal:
    • Simplify reading / writing from and to BlobContainer #7551
    • Refactor guice startup #7289
    • Fixed filters execution order and fix potential concurrency issue in filter chains #7023 (issues: #7019, #7021)
    • streamline use of IndexClosedException introduced with #6475 #6990 (issues: #6475, #6988)
  • Java API:
    • Remove operationThreaded setter from ExplainRequestBuilder #7186
  • Mapping:
    • Remove unsupported postings_format / doc_values_format #7604 (issues: #7238, #7566)
  • REST API:
    • Removed support for aliases as part of index settings #5545
  • Resiliency:
    • Forbid index names over 100 characters in length #7252 (issue: #4417)
    • Automatic verification of all files that are being snapshotted with Snapshot/Restore #7159 (issue: #5593)
  • Scripting:
    • Script with _score: remove dependency of DocLookup and scorer #7819 (issues: #7043, #7487)
    • Remove MVEL as a built-in scripting language #6610
    • Switch to Groovy as the default scripting language #6571 (issue: #6233)
  • Settings:
    • Add a index.query.parse.allow_unmapped_fields setting that fails if queries refer to unmapped fields. #6928 (issue: #6664)

New features

  • Aggregations:
    • Scriptable Metrics Aggregation #7075 (issue: #5923)
    • Added pre and post offset to histogram aggregation #6980 (issue: #6605)
    • Added Filters aggregation #6974 (issues: #6118, #6119)
    • Add children aggregation #6936
  • Analysis:
    • Add keep_types for filtering by token type #7120
  • Index templates:
    • Made template filtering generic and extensible #7454 (issue: #7459)
  • Indexing:
    • Switch auto-ids to Flake IDs from random UUIDs #7531 (issues: #5941, #6004)
  • Indices API:
  • Internal:
    • Added an option to add arbitrary headers to the client requests #7127
  • Java API:
    • Improved Suggest Client API #7507 (issue: #7435)
  • Mapping:
    • Add new default option for timestamp field #7036 (issue: #4718)
  • More Like This Query:
    • Adds the ability to specify the analyzer used for each Field #6329
  • Query Cache:
    • Support shard level query response caching #7161
  • Resiliency:
    • Add basic upgrade test script #7074
  • Search:
    • Add Exists API to check if any matching documents exist for a given query #7026 (issue: #6995)
    • Add an option to early terminate document collection when searching/counting #6885 (issue: #6876)
  • Significant Terms:
    • Add google normalized distance and chi square #6858
  • Sorting:
    • Allow _geo_distance to handle many to many geo point distance #7097 (issue: #3926)
  • Term Vectors:
    • Support for artificial documents #7530
    • Computes term vectors on the fly if not stored in index #6567 (issue: #5184)
  • Test:
    • Add ElasticsearchSingleNodeTest. #6874
  • Update API:
    • Add support for scripted upserts. #7144 (issue: #7143)
    • Detect noop updates when using doc #6862 (issue: #6822)

Enhancements

  • Aggregations:
    • Encapsulate AggregationBuilder name and make getter public #7425
    • Merge LongTermsAggregator and DoubleTermsAggregator. #7279
    • Remove the logic to optionally sort/dedup values on the fly. #7276
    • Make the list of buckets for terms and histogram returned as a java.util.List. #7275
    • Stops direct subclassing of InternalNumericMetricsAggregation #7058
    • Better JSON output scoping #6985 (issue: #7004)
    • Change to default shard_size in terms aggregation #6960 (issue: #6857)
    • Added an option to show the upper bound of the error for the terms aggregation #6778 (issue: #6696)
  • Analysis:
    • Expose Latvian analyzer #7542
  • Discovery:
    • Close ping handler's executor service properly #7903
    • Give a unique id to each ping response #7769
    • UnicastZenPing don't rename configure host name #7747 (issue: #7719)
    • node join requests should be handled at lower priority than master election #7733
    • not all master election related cluster state update task use Priority.IMMEDIATE #7718
    • back port #7558 to 1.x and add bwc protections of the new ping on master gone introduced in #7493 #7694 (issue: #7558)
  • Fielddata:
    • Remove custom comparators and use Lucene's instead #6981 (issue: #5980)
  • Flush:
    • Add wait_if_ongoing option to _flush requests #6996
  • Function Score:
    • Add optional weight parameter per function #7137 (issue: #6955)
    • Add missing whitespace in error message when throwing exception #6155
  • Geo:
    • Adds support for GeoJSON GeometryCollection #7123 (issue: #2796)
  • Get API:
    • Allow GET access to _all field (return value was always null before) #6924
  • Indexed Scripts/Templates:
    • Make sure headers are handed over to internal requests and streamline versioning support #7569
    • Use preference("_local") on get calls. #7477
  • Indexing:
  • Internal:
    • upgrade to Lucene 4.10.1 release #7905
    • split internal fetch request used within scroll and search #7870 (issues: #6933, #7319, #7856)
    • Never send requests after transport service is stopped #7862
    • split internal free context request used after scroll and search #7856 (issues: #6933, #7319)
    • Upgrade to Lucene 4.10.1 snapshot #7844
    • Add a listener thread pool #7837
    • Use internal time estimation for time limited search collector #7833
    • Chunk direct buffer usage by networking layer #7811
    • remove ForceSyncDirectory #7804
    • Try to increment store before searcher is acquired #7792
    • Check if from + size don't cause overflow and fail with a better error #7778 (issue: #7774)
    • make sure that internally generated percolate request re-uses the original headers and request context #7767
    • make sure that update internal requests share the same original headers and request context #7766
    • Add missing cluster blocks handling for master operations #7763 (issue: #7740)
    • make sure that all delete mapping internal requests share the same original headers and context #7736
    • Write translog opSize twice #7735
    • add indices setter to IndicesRequest interface #7734
    • Added scrollId/s setters to the different scroll requests/responses #7722
    • make sure that original headers are used when executing search as part of put warmer #7711
    • Improve exception from Store.failIfCorrupted #7695 (issue: #7596)
    • refactor copy headers mechanism to not require a client factory #7675 (issue: #7594)
    • In thread pools, use DirectExecutor instead of deprecated API #7636
    • Introduced a transient context to the rest request #7610
    • Refactor copy headers mechanism in REST API #7594 (issue: #6513)
    • Upgrade Guava to 18.0. #7593 (issue: #6268)
    • Deduplicate useful headers that get copied from REST to transport layer #7590
    • Upgrade to Lucene 4.10 #7584
    • Use FixedBitSetFilterCache for delete-by-query #7581 (issue: #7037)
    • Extract a common base class for (Master|Nodes)FaultDetection #7512 (issue: #7493)
    • Removing useless methods and method parameters from ObjectMapper.java and TypeParsers.java #7474 (issue: #7271)
    • Extended ActionFilter to also enable filtering the response side #7465
    • Removed ConcurrentHashMapV8 #7392 (issues: #6400, #7296)
    • move index templates api back to indices category and make put template and create index implement IndicesRequest #7378
    • Make sure that multi_search request hands over its context and headers to its corresponding search requests #7374
    • Make sure that multi_percolate request hands over its context and headers to its corresponding shard requests #7371
    • Clarify XContentParser/Builder interface for binary vs. utf8 values #7367
    • Upgrade to Apache HttpComponents client 4.3.5 #7346 (issue: #7342)
    • Get request while percolating existing documents to keep around headers and context of the original percolate request #7333
    • Auto create index to keep around headers and context of the request that caused it #7331
    • Upgrade to Netty 3.9.3.Final #7328
    • DistributorDirectory shouldn't search for directory when reading existing file #7323 (issue: #7306)
    • Switch to fixed thread pool by default for management threads #7320 (issue: #7318)
    • Make sure that all shard level requests hold the original indices #7319
    • Refactored TransportMessage context #7303
    • Made it possible to disable the main transport handler in TransportShardSingleOperationAction #7285
    • Introduced a new elasticsearch exception family that can hold headers #7269
    • Adjusted BroadcastShardOperationResponse subclasses visibility #7255
    • Add some @Nullable annotations and fix related compilation warnings. #7251
    • Adjusted visibility for BroadcastShardOperationRequest subclasses and their constructors #7235
    • changed every single index operation to not replace the index within the original request #7223
    • Adjusted TermVectorRequest serialization to not serialize and de-serialize the index twice #7221
    • Store index creation time in index metadata #7218 (issue: #7119)
    • refactored TransportSingleCustomOperationAction, subclasses and requests #7214
    • Removed needless serialization code from TransportIndexReplicationAction and corresponding request object #7211
    • Added transient header support for TransportMessage #7187
    • Check for null references that may be returned due to concurrent changes or inconsistent cluster state #7181
    • Version bump HPPC to 0.6.0 #7139
    • Randomized testing version bump #7138
    • Support "default" for tcpNoDelay and tcpKeepAlive #7136 (issue: #7115)
    • Better categorization for transport actions #7105
    • Added a cli infrastructure #7094
    • Introduced the notion of a FixedBitSetFilter that guarantees to produce a FixedBitSet #7037 (issue: #7031)
    • Add a periodic cleanup thread for IndexFieldCache caches #7015 (issue: #7010)
    • Remove use of recycled set in filters eviction #7012
    • Refactor TransportActions #6989
    • Change numeric data types to use SORTED_NUMERIC docvalues type #6967
    • With unicast discovery, only disconnect from temporary connected nodes #6966
    • Remove unneeded cluster state serialization during cluster join #6949
    • expose the indices names every action relates to if applicable #6933
    • Better message for invalid internal transport message format #6916
    • Refactoring to make MessageChannelHandler extensible #6915 (issue: #6889)
    • Switch fielddata to use Lucene doc values APIs. #6908
    • Added three frequency levels for resource watching #6896
    • Refactoring to make Netty MessageChannelHandler extensible #6889
    • Rename FieldMapper.termsFilter to fieldDataTermsFilter. #6888
    • Remove (mostly) unused 'failure' member from ShardSearchFailure. #6861 (issue: #6837)
    • Use KeyedLock in IndexFieldDataService #6855
    • Separate parsing implementation from setter in SearchParseElement #6758 (issue: #3602)
    • Add a best effort waiting for ongoing recoveries to cancel on close #6741
  • Java API:
    • allow nullable queryBuilder in FilteredQueryBuilder to match rest api #7398 (issue: #7365)
    • Some PercolateRequest "setters" allow for method chaining, some don't #7294
    • Throw IllegalStateException if you try to .addMapping for same type more than once #7243 (issue: #7231)
    • XContentBuilder.map(Map) method modified to use a wildcard for value's type. #7212
    • Add index, type and id to ExplainResponse #7201
    • Add a blocking variant of close() method to BulkProcessor #6586 (issues: #4158, #6314)
  • Mapping:
    • Report conflict when merging _all field mapping and throw exception when doc_values specified #7377 (issue: #777)
    • Enforce non-null settings. #7032
  • More Like This Query:
    • Default to all possible fields for items #7382
    • Switch to using the multi-termvectors API #7014
    • Fetch text from all possible fields if none are specified #6740
    • Added syntax for single item specification. #6311
  • Nested:
    • Fix support for named filters/queries inside nested filters. #6293
  • Netty:
    • Make sure channel closing never happens on i/o thread #7726
  • NodesFD:
    • simplify concurrency control to fully rely on a single map #7889
  • Packaging:
    • Make .zip and .tar.gz release artifacts contain same files #7578 (issue: #2793)
    • Add default oracle jdk 7 (x64) path to JDK_DIRS #7132
  • Parent/Child:
    • When parent doc is found stop iterating over segments and continue with the next top matching child doc #6895 (issue: #1843)
  • Percolator:
    • Percolator should cache index field data instances. #7081 (issue: #6806)
    • Reuse IndexFieldData instances between percolator queries #6845 (issue: #6806)
  • Plugins:
    • Add executable flag to every file in bin/ after install #7177
    • Lucene version checker should use Lucene.parseVersionLenient #7056
    • Introduced pluggable filter chain to be able to filter transport actions execution #6921
  • Query Cache:
    • Add hit and miss count #7355
    • Warmer (search) to support query cache #7326
    • Add a request level flag to control query cache #7167
  • Query DSL:
    • Add time zone setting for relative date math in range filter/query #7113 (issue: #3729)
    • Add support for the _name parameter to the simple_query_string query #6979
  • REST API:
    • Changed the root rest endpoint ('/') to use cluster service #7933 (issue: #7899)
    • Add the cluster name to the "/" endpoint #7524
    • A content decompressor that throws a human readable message when #7241
  • Recovery:
    • remove unneeded waits on recovery cancellation #7717
  • Resiliency:
    • During discovery, master fault detection should fall back to cluster state thread upon error #7908 (issue: #7834)
    • During discovery, remove any local state and use clusterService.state instead #7834
    • During recovery, mark last file chunk to fail fast if payload is truncated #7830
    • Update ZenDiscovery fields via the cluster service update task. #7790
    • Change LZFCompressedStreamOutput to use buffer recycler when allocating encoder #7613
    • Clean up translog interface #7564
    • Master election should demotes nodes which try to join the cluster for the first time #7558 (issue: #7493)
    • Do not use a background thread to disconnect node which are removed from the ClusterState #7543
    • Refactored ClusterStateUpdateTask protection against execution on a non master #7511 (issue: #7493)
    • Accumulated improvements to ZenDiscovery #7493 (issue: #2488)
    • Verify checksums on merge #7360
    • Discovery - UnicastZenPing should also ping last known discoNodes #7336
    • Add translog checksums #7232 (issue: #6554)
    • Do not use versions to optimize cluster state copying for a first update from a new master #6466
  • Scripting:
    • Add GroovyCollections to the sandbox whitelist #7250 (issues: #7088, #7089)
    • Make ScoreAccessor utility class plublicly available for other script engines #6898 (issue: #6864)
    • Remove setNextScore in SearchScript. #6864
  • Security:
    • Disable CORS by default #7642 (issue: #7151)
    • Allow to configure CORS allow-credentials header to work via SSL #7059 (issue: #6380)
    • Support regular expressions for CORS allow-origin to match against #6923 (issues: #5601, #6891)
  • Settings:
    • Make "cluster.routing.allocation.allow_rebalance" a dynamic setting #7095 (issue: #7092)
    • Allow index.merge.scheduler.max_thread_count to be dynamically changed #6925 (issue: #6882)
  • Snapshot/Restore:
    • Allow custom metadata to specify whether or not it sho... #7901 (issue: #7900)
    • Write Snapshots directly to the blobstore stream #7637
    • Add ability to restore partial snapshots #6368 (issue: #5742)
  • Sorting:
    • Speed up string sort with custom missing value #7005
  • Stats:
    • Add segments.index_writer_max_memory to stats #7440 (issues: #6483, #7438)
  • Suggesters:
    • add suggestRequest to Requests and fix broken javadocs in client #7207 (issue: #7206)
    • Collate option in PhraseSuggester should allow returning phrases with no matching docs #6929 (issue: #6927)
  • Term Vectors:
    • Return found: false for docs requested between index and refresh #7124 (issue: #7121)
  • Term Vectors API:
    • adds support for wildcards in selected fields #7061
  • Test:
    • use local random instance rather than thread local version #7665
    • Ensure BWC test run even if node.mode=local is set #7660
    • Allow SingleNodeTest to reset the node if really needed after test. #7608 (issue: #7550)
    • Randomly enable AggressiveOpts in builds #7533
    • Unify the randomization logic for number of shards and replicas #7522
    • Allow global test cluster to have configurable settings source #7482
    • Improve test coverage #7428
    • Use a default host name if localAddress is not available #7409
    • Use a dedicated port range per test JVM #7396
    • Only reset clients on nightly tests #7329
    • move plugin dir to plugins dir #7253
    • Allow CliTool to write out stacktraces #7222
    • Improved CLI testing infrastructure #7198
    • Added custom transport client settings to test infra #7129
    • Pick random version from backwards directory #7076
    • Remove HttpClient to only use one HTTP client implementation #7003
    • Maven reproductions should always include 'clean' target #6975
    • Add simple sort assertions for bwc tests #6968 (issue: #6967)
    • Randomize translog implementation #6658
    • Randomization script refactoring #5914
  • Translog:
    • remove unused stream #7683
  • TransportClient:
    • Mark transport client as such when instantiating #7552

Bug fixes

  • Aggregations:
    • Significant Terms Heuristics now registered correctly #7853 (issue: #7840)
    • Inconsistent sorting of top_hits fixed #7697
    • Fixes resize bug in Geo bounds Aggregator #7565 (issue: #7556)
    • The nested aggregator should iterate over the child doc ids in ascending order. #7514 (issue: #7505)
    • Fixes pre and post offset serialisation for histogram aggs #7313 (issue: #7312)
    • key_as_string only shown when format specified in terms agg #7160 (issue: #7125)
    • fixed value count so it can be used in terms order #7051 (issue: #7050)
    • The nested aggregator should also resolve and use the parentFilter of the closest reverse_nested aggregator. #7048 (issue: #6994)
    • Fix infinite loop in the histogram reduce logic. #7022 (issue: #6965)
    • Make _source parsing in top_hits aggregation and search api consistent #6997
    • More lenient type parsing in histo/cardinality aggs #6948 (issue: #6893)
    • Track scores should be applied properly for top_hits aggregation. #6934
    • Fixed Histogram key_as_string bug #6830 (issue: #6655)
  • Bulk API:
    • Bulk operation can create duplicates on primary relocation #7729
    • Cluster block with auto create index bulk action can cause bulk execution to not return #7109 (issue: #7086)
    • Do not fail whole request on closed index #6790 (issue: #6410)
  • Circuit Breaker:
    • Only set breaker when stats are retrieved #7721
  • Discovery:
    • UnicastZenPing - use temporary node ids if can't resolve node by it's address #7719
  • Function Score:
    • Refactor RandomScoreFunction to be consistent, and return values in range [0.0, 1.0] #7446 (issue: #6907)
    • Fix explain distance string #7248
    • Remove explanation of query score from functions #7245
  • GET API:
    • Add parameter to GET for checking if generated fields can be retrieved #6973 (issue: #6676)
  • Geo:
    • Fix circle radius calculation #7338 (issue: #7301)
    • Improved error handling in geo_distance #7272 (issue: #7260)
    • fixes computation of geohash neighbours #7247 (issue: #7226)
    • Better error for invalid multipolygon #7190 (issue: #7126)
    • Fix geo_shapes which intersect dateline #7188 (issue: #7016)
    • Fixes parse error with complex shapes #6976 (issue: #5773)
  • Indexed Scripts/Templates:
  • Indexing:
    • Don't throw DAEE on replica for create operation; use IW.updateDocument/s instead #7146 (issue: #7142)
  • Indices API:
    • fixes GET Alias API backwards compatibility #7892 (issue: #7793)
  • Internal:
    • Fix optimize behavior with 'force' and 'flush' flags. #7920 (issues: #7886, #7904)
    • Make close() synchronized during node shutdown #7885
    • ClusterHealthAPI does not respect waitForEvents when local flag is set #7731
    • Ensure GroupShardsIterator is consistent across requests, to ensure consistent sorting #7698
    • Turn unexpected exceptions when reading segments into CorruptedIndexException #7693
    • Fix ordering of Regex.simpleMatch() parameters #7661 (issue: #7651)
    • Unify search context cleanup #7643 (issue: #7625)
    • Use SEARCH threadpool for potentially blocking operations #7624 (issue: #7623)
    • Validate create index requests' number of primary/replica shards #7496 (issue: #7495)
    • Make network interface iteration order consistent #7494
    • Add all unsafe variants of LZF compress library functions to forbidden APIs. #7468
    • Wait until engine is started up when acquiring searcher #7456 (issue: #7455)
    • Fix discovery.id.seed #7439 (issue: #7437)
    • Indexes unuseable after upgrade from 0.2 to 1.3 and cluster restart #7430
    • Use node's cluster name as a default for an incoming cluster state who misses it #7414 (issue: #7386)
    • made original indices optional for broadcast delete and delete by query shard requests #7406
    • Force optimize was not passed to shard request #7405 (issue: #7404)
    • Ignore segments.gen on metadata snapshots #7379
    • Upgrade to Jackson Smile 2.4.1.1 #7327 (issue: #18)
    • Fixed a request headers bug in transport client #7302
    • Parsing command line args multiple times throws AlreadySelectedException #7282
    • Fix explanation streaming #7257
    • VerboseProgress(PrintWriter) does not set the writer #7254
    • Fix a very rare case of corruption in compression used for internal cluster communication. #7210
    • Fix BytesStreamInput(BytesReference) ctor with nonzero offset #7197
    • Fix serialization bug in reroute API #7135
    • Support parsing lucene minor version strings #7055
    • Use the provided cluster state instead of fetching a new cluster state from cluster service. #7013
    • Fix connect concurrency, can cause connection nodes to close #6964
    • Drop UnsafeUtils #6963 (issue: #6962)
    • When serializing HttpInfo, return null info if service is not started #6906
  • Java API:
    • get indexed script shouldn't allow to set the index #7553
    • Add back string op type to IndexRequest #7387
  • MLT Query:
    • fix percent_terms_to_match #7754
  • Mapping:
    • Add explicit error when PUT mapping API is given an empty request body. #7618 (issue: #7536)
    • Enable merging of properties in the _timestamp field #7614 (issues: #5772, #6958, #777)
    • Fix index setting in _boost field #7557
    • Keep parameters in mapping for _timestamp and _size even if disabled #7475
    • Report conflict when trying to disable _ttl #7316 (issues: #7293, #777)
    • Make sure that multi fields are serialized in a consistent order. #7220 (issue: #7215)
    • Fix dynamic mapping of geo_point fields #7175 (issue: #6939)
    • Improve IP address validation #7141 (issue: #7131)
    • Fix copy_to behavior on nested documents. #7079 (issue: #6701)
    • Add multi_field support for Mapper externalValue (plugins) #6867 (issue: #5402)
  • More Like This API:
    • remove unused search_query_hint parameter #7691
  • MultiGet:
    • Fail when using no routing on an alias to an index that requires routing #7145
  • Nested:
    • If the _type field isn't indexed nested inner docs must be filtered out. #7410
  • Packaging:
    • Move forbidden api signature files to dev-tools. #7921 (issue: #7917)
    • Don't remove ancestors on deb removal #7078 (issue: #5770)
  • Parent/Child:
    • has_child or other p/c query wrapped in a query filter may emit wrong results #7685
    • Add support for the field data loading option to the _parent field. #7402 (issue: #7394)
    • If _parent field points to a non existing parent type, then skip the has_parent query/filter #7362 (issue: #7349)
  • Percolator:
    • Pass down the types from the delete mapping request to the delete by query request #7091 (issue: #7087)
  • PluginManager:
    • Fix config path extraction from plugin handle #7935
  • Plugins:
    • bin and config only plugins do not install correctly #7154 (issue: #7152)
    • Properly quote $JAVA in bin/plugin #5765
  • Query DSL:
    • Fix NumberFormatException in Simple Query String Query #7876 (issue: #7875)
    • Empty bool {} should return match_all #7347 (issue: #7240)
    • Cache range filter on date field by default #7122 (issue: #7114)
  • REST:
    • Reroute API response didn't filter metadata #7523 (issue: #7520)
  • REST API:
    • Allows all options for expand_wildcards parameter #7290 (issue: #7258)
    • Added support for empty field arrays in mappings #7271 (issue: #6133)
  • Recovery:
    • mapping check during phase2 should be done in cluster state update task #7744
  • Resiliency:
    • Don't update indexShard if it has been removed before #7509
    • Add BWC layer to .si / segments_N hashing to identify segments accurately #7436 (issues: #7351, #7434)
    • Improve recovery / snapshot restoring file identity handling #7351
    • Do not execute cluster state changes if current node is no longer master #6230
  • Scan:
    • Use ConcurrentHashMap in scan search to keep track of the reader states. #7499 (issue: #7478)
  • Snapshot/Restore:
    • Allow to get metadata from arbitrary commit points #7376
    • Fix NPE in SnapshotsService on node shutdown #7322 (issue: #6506)
  • Sort:
    • Make ignore_unmapped work for cross-index queries. #7039 (issue: #2255)
  • Stats:
    • _status with #shards >> queue capacity failing with BroadcastShardOperationFailedException #7916
    • Fix NPE in /_cat/nodes #7815 (issue: #6297)
    • Update action returns before updating stats for NONE operations #7639
    • NPE in ShardStats when routing entry is not set yet on IndexShard #7358 (issue: #7356)
  • Suggesters:
    • infinite loop in GeolocationContextMapping #7433
    • Bugs with encoding multiple levels of geo precision #7369 (issue: #7368)
    • Completion mapping type throws a misleading error on null value #6926 (issue: #6399)
  • Test:
    • Fix circuit breaker tests for remote clusters and bwc #7062
  • Transport Client:
    • fixed the node retry mechanism which could fail without trying all the connected nodes #6829
  • Transport client:

Regression

  • Discovery:
    • restore preference to latest unicast pings describing the same node #7702 (issues: #5413, #7558)