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== 6.1.0 Release Notes === Breaking changes Network:: - Allow only a fixed-size receive predictor REST:: - Standardize underscore requirements in parameters Scroll:: - Fail queries with scroll that explicitely set request_cache Search:: - Add a limit to from + size in top_hits and inner hits. === Breaking Java changes Aggregations:: - Moves deferring code into its own subclass Core:: - Unify Settings xcontent reading and writing Settings:: - Return List instead of an array from settings - Remove `Settings,put(Map<String,String>)` === Deprecations Aggregations:: - Deprecate global_ordinals_hash and global_ordinals_low_cardinality Allocation:: - Add deprecation warning for negative index.unassigned.node_left.delayed_timeout Analysis:: - Add limits for ngram and shingle settings Geo:: - [GEO] 6x Deprecate ShapeBuilders and decouple geojson parse logic Mapping:: - Deprecate the `index_options` parameter for numeric fields Plugin Repository Azure:: - Azure repository: Move to named configurations as we do for S3 repository and secure settings Search:: - doc: deprecate _primary and _replica shard option === New features Aggregations:: - Aggregations: bucket_sort pipeline aggregation - Add composite aggregator Analysis:: - Added Bengali Analyzer to Elasticsearch with respect to the lucene update Ingest:: - add URL-Decode Processor to Ingest Java High Level REST Client:: - Added Delete Index support to high-level REST client Nested Docs:: - Multi-level Nested Sort with Filters Query DSL:: - Add terms_set query - Introduce sorted_after query for sorted index - Add support for auto_generate_synonyms_phrase_query in match_query, multi_match_query, query_string and simple_query_string Search:: - Expose `fuzzy_transpositions` parameter in fuzzy queries - Add upper limit for scroll expiry - Implement adaptive replica selection - configure distance limit Similarities:: - Add a scripted similarity. Suggesters:: - Expose duplicate removal in the completion suggester - Support must and should for context query in context suggester === Enhancements Aggregations:: - Allow aggregation sorting via nested aggregation Allocation:: - Tie-break shard path decision based on total number of shards on path - Balance shards for an index more evenly across multiple data paths - Expand "NO" decision message in NodeVersionAllocationDecider - _reroute's retry_failed flag should reset failure counter Analysis:: - Add configurable `max_token_length` parameter to whitespace tokenizer CRUD:: - Add wait_for_active_shards parameter to index open command Core:: - Fix classes that can exit - Replace empty index block checks with global block checks in template delete/put actions - Allow Uid#decodeId to decode from a byte array slice - Use separate searchers for "search visibility" vs "move indexing buffer to disk - Add ability to split shards - Make circuit breaker mutations debuggable Dates:: - DateProcessor Locale Discovery:: - Stop responding to ping requests before master abdication Engine:: - Ensure external refreshes will also refresh internal searcher to minimize segment creation - Move IndexShard#getWritingBytes() under InternalEngine - Refactor internal engine Geo:: - Add ignore_malformed to geo_shape fields Ingest:: - add json-processor support for non-map json types - Introduce templating support to timezone/locale in DateProcessor - Add support for parsing inline script (#23824) - Consolidate locale parsing. - Accept ingest simulate params as ints or strings Internal:: - Avoid uid creation in ParsedDocument - Upgrade to Lucene 7.1.0 snapshot version - Remove `_index` fielddata hack if cluster alias is present Java High Level REST Client:: - Adjust RestHighLevelClient method modifiers - Decouple BulkProcessor from ThreadPool Logging:: - Add more information on _failed_to_convert_ exception (#21946) - Improve shard-failed log messages. Mapping:: - Allow ip_range to accept CIDR notation - Deduplicate `_field_names`. - Throw a better error message for empty field names - Stricter validation for min/max values for whole numbers - Make FieldMapper.copyTo() always non-null. Nested Docs:: - Use the primary_term field to identify parent documents - Prohibit using `nested_filter`, `nested_path` and new `nested` Option at the same time in FieldSortBuilder Network:: - Remove manual tracking of registered channels - Remove tcp profile from low level nio channel - Decouple `ChannelFactory` from Tcp classes Percolator:: - Use Lucene's CoveringQuery to select percolate candidate matches - Add support to percolate query to percolate multiple documents simultaneously - Hint what clauses are important in a conjunction query based on fields - Add support for selecting percolator query candidate matches containing range queries Plugin Discovery EC2:: - update AWS SDK for ECS Task IAM support in discovery-ec2 Plugin Lang Painless:: - Painless: Only allow Painless type names to be the same as the equivalent Java class. - Allow for the Painless Definition to have multiple instances for white-listing - Separate Painless Whitelist Loading from the Painless Definition - Remove Sort enum from Painless Definition Plugin Repository Azure:: - Add azure storage endpoint suffix #26432 - Support for accessing Azure repositories through a proxy Plugin Repository S3:: - Remove S3 output stream - Update to AWS SDK 1.11.223 Plugins:: - Plugins: Add versionless alias to all security policy codebase properties - Allow plugins to plug rescore implementations Query DSL:: - Add support for wildcard on `_index` Reindex API:: - Update by Query is modified to accept short `script` parameter. - reindex: automatically choose the number of slices Rollover:: - Add size-based condition to the index rollover API - Add size-based condition to the index rollover API Scripting:: - Script: Convert script query to a dedicated script context Search:: - Make fields optional in multi_match query and rely on index.query.default_field by default - fix unnecessary logger creation - `ObjectParser` : replace `IllegalStateException` with `ParsingException` - Uses norms for exists query if enabled - Cross Cluster Search: make remote clusters optional - Enhances exists queries to reduce need for `_field_names` - Change ParentFieldSubFetchPhase to create doc values iterator once per segment - Change VersionFetchSubPhase to create doc values iterator once per segment - Change ScriptFieldsFetchSubPhase to create search scripts once per segment - Make sure SortBuilders rewrite inner nested sorts - Extend testing of build method in ScriptSortBuilder - Accept an array of field names and boosts in the index.query.default_field setting - Reject IPv6-mapped IPv4 addresses when using the CIDR notation. - Rewrite range queries with open bounds to exists query Sequence IDs:: - Only fsync global checkpoint if needed - Log primary-replica resync failures - Lazy initialize checkpoint tracker bit sets - Returns the current primary_term for Get/MultiGet requests Settings:: - Allow affix settings to specify dependencies - Represent lists as actual lists inside Settings - Remove Settings#getAsMap() - Replace group map settings with affix setting - Throw exception if setting isn't recognized - Settings: Move keystore creation to plugin installation Snapshot/Restore:: - Remove XContentType auto detection in BlobStoreRepository - Snapshot: Migrate TransportRequestHandler to TransportMasterNodeAction - Fix toString of class SnapshotStatus (#26851) Stats:: - Adds average document size to DocsStats - Stats to record how often the ClusterState diff mechanism is used successfully - Expose adaptive replica selection stats in /_nodes/stats API - Add cgroup memory usage/limit to OS stats on Linux - Add segment attributes to the `_segments` API. Suggesters:: - Improve error message for parse failures of completion fields - Support 'AND' operation for context query in context suggester === Bug fixes Aggregations:: - Disable the "low cardinality" optimization of terms aggregations. - scripted_metric _agg parameter disappears if params are provided Cluster:: - Properly format IndexGraveyard deletion date as date - Remove optimisations to reuse objects when applying a new `ClusterState` Core:: - Do not set data paths on no local storage required - Ensure threadcontext is preserved when refresh listeners are invoked - Ensure logging is configured for CLI commands - Protect shard splitting from illegal target shards - Avoid NPE when getting build information - Fix `ShardSplittingQuery` to respect nested documents. - When building Settings do not set SecureSettings if empty Engine:: - Reset LiveVersionMap on sync commit - Carry over version map size to prevent excessive resizing Geo:: - Correct two equality checks on incomparable types - [GEO] fix pointsOnly bug for MULTIPOINT Index Templates:: - Prevent constructing an index template without index patterns Ingest:: - Add pipeline support for REST API bulk upsert - Fixing Grok pattern for Apache 2.4 Inner Hits:: - Return an empty _source for nested inner hit when filtering on a field that doesn't exist Internal:: - When checking if key exists in ThreadContextStruct:putHeaders() method, should put requestHeaders in map first - Adding a refresh listener to a recovering shard should be a noop Java High Level REST Client:: - Register ip_range aggregation with the high level client - add top hits as a parsed aggregation to the rest high level client Mapping:: - Fix dynamic mapping update generation. - Fix merging of _meta field - Fixed rounding of bounds in scaled float comparison Nested Docs:: - Ensure nested documents have consistent version and seq_ids - Prevent duplicate fields when mixing parent and root nested includes Network:: - Throw UOE from compressible bytes stream reset - Bubble exceptions when closing compressible streams - Do not set SO_LINGER on server channels - Do not set SO_LINGER to 0 when not shutting down - Close TcpTransport on RST in some Spots to Prevent Leaking TIME_WAIT Sockets Packaging:: - Removes minimum master nodes default number - setgid on /etc/elasticearch on package install Percolator:: - Avoid TooManyClauses exception if number of terms / ranges is exactly equal to 1024 Plugin Analysis ICU:: - Catch InvalidPathException in IcuCollationTokenFilterFactory Plugin Lang Painless:: - Painless: Fix variable scoping issue in lambdas - Painless: Fix errors allowing void to be assigned to def. Plugin Repository GCS:: - Create new handlers for every new request in GoogleCloudStorageService Recovery:: - Flush old indices on primary promotion and relocation Reindex API:: - Reindex: Fix headers in reindex action Scroll:: - Fix scroll query with a sort that is a prefix of the index sort Search:: - Fix profiling naming issues - Fix max score tracking with field collapsing - Apply missing request options to the expand phase - Calculate and cache result when advanceExact is called - Filter unsupported relation for RangeQueryBuilder - Handle leniency for phrase query on a field indexed without positions Sequence IDs:: - Obey translog durability in global checkpoint sync - Fix resync request serialization Settings:: - Allow index settings to be reset by wildcards Snapshot/Restore:: - Do not swallow exception in ChecksumBlobStoreFormat.writeAtomic() - Delete shard store files before restoring a snapshot - Fix snapshot getting stuck in INIT state - Fix default value of ignore_unavailable for snapshot REST API - Do not create directory on readonly repository (#21495) Stats:: - Include internal refreshes in refresh stats - Make Segment statistics aware of segments hold by internal readers - Ensure `doc_stats` are changing even if refresh is disabled === Upgrades Core:: - Upgrade to Jackson 2.8.10 - Upgrade to Lucene 7.1 Plugin Discovery EC2:: - Upgrade AWS SDK Jackson Databind to 2.6.7.1 Plugin Discovery GCE:: - Update Google SDK to version 1.23.0 Plugin Lang Painless:: - Upgrade Painless from ANTLR 4.5.1-1 to ANTLR 4.5.3. == 6.0.1 Release Notes === Breaking changes Scroll:: - Fail queries with scroll that explicitely set request_cache === Enhancements Core:: - Fix classes that can exit Discovery:: - Stop responding to ping requests before master abdication Plugin Repository S3:: - Remove S3 output stream - Update to AWS SDK 1.11.223 Search:: - fix unnecessary logger creation Sequence IDs:: - Log primary-replica resync failures Snapshot/Restore:: - Remove XContentType auto detection in BlobStoreRepository === Bug fixes Cluster:: - Properly format IndexGraveyard deletion date as date Core:: - Do not set data paths on no local storage required - Ensure threadcontext is preserved when refresh listeners are invoked - Avoid NPE when getting build information - When building Settings do not set SecureSettings if empty Engine:: - Reset LiveVersionMap on sync commit - Carry over version map size to prevent excessive resizing Inner Hits:: - Return an empty _source for nested inner hit when filtering on a field that doesn't exist Mapping:: - Fix dynamic mapping update generation. - Fixed rounding of bounds in scaled float comparison Nested Docs:: - Ensure nested documents have consistent version and seq_ids Network:: - Throw UOE from compressible bytes stream reset - Bubble exceptions when closing compressible streams Plugin Lang Painless:: - Painless: Fix errors allowing void to be assigned to def. Plugin Repository GCS:: - Create new handlers for every new request in GoogleCloudStorageService Recovery:: - Flush old indices on primary promotion and relocation Reindex API:: - Reindex: Fix headers in reindex action Search:: - Fix profiling naming issues Sequence IDs:: - Fix resync request serialization Snapshot/Restore:: - Do not swallow exception in ChecksumBlobStoreFormat.writeAtomic() - Delete shard store files before restoring a snapshot - Fix snapshot getting stuck in INIT state - Fix default value of ignore_unavailable for snapshot REST API (#25359) - Do not create directory on readonly repository (#21495) === Upgrades Plugin Discovery EC2:: - Upgrade AWS SDK Jackson Databind to 2.6.7.1 Plugin Discovery GCE:: - Update Google SDK to version 1.23.0 |
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