a3dc0123ed
=== Breaking changes Settings:: - Remove support for default settings === Breaking Java changes Aggregations:: - Move getProperty method out of MultiBucketsAggregation.Bucket interface - Remove getProperty method from Aggregations interface and impl - Move getProperty method out of Aggregation interface Java API:: - Fold InternalSearchHits and friends into their interfaces === Deprecations Aggregations:: - Deprecate Stats#getCountAsString Java API:: - Add BulkProcessor methods with XContentType parameter Network:: - Deprecate Netty 3 Packaging:: - Add deprecation warnings for $ES_USER and $ES_GROUP Plugin Delete By Query:: - Deprecate delete_by_query requests without an explicit query Plugin Repository Azure:: - Deprecate global `repositories.azure` settings Plugin Repository S3:: - Deprecate repositories.s3 settings REST:: - Deprecate ldjson support and document ndjson for bulk/msearch Stats:: - Deprecate `_field_stats` endpoint === New features Analysis:: - Adds pattern keyword marker filter support - Expose WordDelimiterGraphTokenFilter Index APIs:: - Add FieldCapabilities (`_field_caps`) API Search:: - Introduce incremental reduction of TopDocs Similarities:: - Adds boolean similarity to Elasticsearch === Enhancements Aggregations:: - Add BucketMetricValue interface - Move aggs CommonFields and TYPED_KEYS_DELIMITER from InternalAggregation to Aggregation - Use ParseField for aggs CommonFields rather than String - Share XContent rendering code in terms aggs - Add unit tests for ParentToChildAggregator - First step towards incremental reduction of query responses Allocation:: - Trigger replica recovery restarts by master when primary relocation completes - Makes the same_shard host dynamically updatable Analysis:: - Support Keyword type in Analyze API Cluster:: - Prevent nodes from joining if newer indices exist in the cluster Core:: - Detect remnants of path.data/default.path.data bug - Await termination after shutting down executors - Add early-access check - Adapter action future should restore interrupts - Disable bootstrap checks for single-node discovery - Enable explicitly enforcing bootstrap checks - Add equals/hashcode method to ReplicationResponse Dates:: - Improve error handling for epoch format parser with time zone (#22621) Discovery:: - Introduce single-node discovery - UnicastZenPing shouldn't ping the address of the local node - MasterFaultDetection can start after the initial cluster state has been processed Highlighting:: - Add support for fragment_length in the unified highlighter - Add BreakIteratorBoundaryScanner support Index APIs:: - Wildcard cluster names for cross cluster search Ingest:: - Lazy load the geoip databases Internal:: - Add a dedicated TransportRemoteInfoAction for consistency - Simplify sorted top docs merging in SearchPhaseController - Synchronized CollapseTopFieldDocs with lucenes relatives - Cleanup SearchPhaseController interface - Do not create String instances in 'Strings' methods accepting StringBuilder Java API:: - Added types options to DeleteByQueryRequest Java High Level REST Client:: - Convert suggestion response parsing to use NamedXContentRegistry - UpdateRequest implements ToXContent - Add javadoc for DocWriteResponse.Builders - Expose WriteRequest.RefreshPolicy string representation - Use `typed_keys` parameter to prefix suggester names by type in search responses - Add parsing methods to BulkItemResponse Logging:: - Warn on not enough masters during election Mapping:: - Improve error message for ipv6 on legacy ip fields Nested Docs:: - Avoid adding unnecessary nested filters when ranges are used. Network:: - Adjust default Netty receive predictor size to 64k - Keep the pipeline handler queue small initially - Set network receive predictor size to 32kb - TransportService.connectToNode should validate remote node ID Packaging:: - Introduce Java version check - Cleanup some things after removal of joda-time hack Percolator:: - Allowing range queries with now ranges inside percolator queries - Add term extraction support for MultiPhraseQuery Plugin Discovery EC2:: - Settings: Migrate ec2 discovery sensitive settings to elasticsearch keystore Plugin Lang Painless:: - Allow painless to load stored fields - Start on custom whitelists for Painless - Fix Painless's implementation of interfaces returning primitives - Allow painless to implement more interfaces Plugin Repository Azure:: - Add Backoff policy to azure repository Plugin Repository S3:: - Removes the retry mechanism from the S3 blob store - S3 Repository: Eagerly load static settings Plugins:: - Modify permissions dialog for plugins - Plugins: Add plugin cli specific exit codes - Plugins: Output better error message when existing plugin is incompatible Query DSL:: - Make it possible to validate a query on all shards instead of a single random shard REST:: - Validate top-level keys when parsing mget requests - Cluster stats should not render empty http/transport types - Add parameter to prefix aggs name with type in search responses Search:: - Set shard count limit to unlimited - Streamline shard index availability in all SearchPhaseResults - Search took time should use a relative clock - Prevent negative `from` parameter in SearchSourceBuilder - Remove unnecessary result sorting in SearchPhaseController - Expose `batched_reduce_size` via `_search` - Adding fromXContent to Suggest and Suggestion class - Adding fromXContent to Suggestion.Entry and subclasses - Add CollapseSearchPhase as a successor for the FetchSearchPhase - Integrate IndexOrDocValuesQuery. - Detach SearchPhases from AbstractSearchAsyncAction - Fix GraphQuery expectation after Lucene upgrade to 6.5 - Nested queries should avoid adding unnecessary filters when possible. - Add xcontent parsing to completion suggestion option - Add xcontent parsing to suggestion options - Separate reduce (aggs, suggest and profile) from merging fetched hits Settings:: - Add secure file setting to keystore - Add a setting which specifies a list of setting - Add a property to mark setting as final - Remove obsolete index setting `index.version.minimum_compatible`. - Provide a method to retrieve a closeable char[] from a SecureString - Update indices settings api to support CBOR and SMILE format - Improve setting deprecation message Snapshot/Restore:: - Change snapshot status error to use generic SnapshotException Stats:: - Add cross-cluster search remote cluster info API Task Manager:: - Allow task to be unregistered by ClusterStateApplier - Limit IndexRequest toString() length === Bug fixes Aggregations:: - Align behavior HDR percentiles iterator with percentile() method - The `filter` and `significant_terms` aggregations should parse the `filter` as a filter, not a query. - Completion suggestion should also consider text if prefix/regex is missing - Fixes the per term error in the terms aggregation - Fixes terms error count for multiple reduce phases - Restore support for the `include/pattern` syntax. Bulk:: - Reject empty IDs CRUD:: - Fix backport executing ops as single item bulk Cluster:: - Don't set local node on cluster state used for node join validation - Allow a cluster state applier to create an observer and wait for a better state - Cluster allocation explain to never return empty response body Core:: - Check for default.path.data included in path.data - Improve performance of extracting warning value - Reject duplicate settings on the command line - Restrict build info loading to ES jar, not any jar Discovery:: - ZenDiscovery - only validate min_master_nodes values if local node is master Index APIs:: - Fixes restore of a shrunken index when initial recovery node is gone - Honor update request timeout Ingest:: - Improve missing ingest processor error - update _ingest.timestamp to use new ZonedDateTime Inner Hits:: - Replace NestedChildrenQuery with ParentChildrenBlockJoinQuery - Changed DisMaxQueryBuilder to extract inner hits from leaf queries Internal:: - Add infrastructure to mark contexts as system contexts - Always restore the ThreadContext for operations delayed due to a block Java High Level REST Client:: - Correctly parse BulkItemResponse.Failure's status Java REST Client:: - Make buffer limit configurable in HeapBufferedConsumerFactory - RestClient asynchronous execution should not throw exceptions Mapping:: - Preserve response headers when creating an index - Improves disabled fielddata error message - Switch include_in_all in multifield to warning - Fix MapperService StackOverflowError - Fix NPE with scaled floats stats when field is not indexed Network:: - Fix possible hang in local transport when nodes get concurrently disconnected - Respect promises on pipelined responses - Ensure that releasing listener is called Packaging:: - Fall back to non-atomic move when removing plugins Percolator:: - Fix memory leak when percolator uses bitset or field data cache Plugin Ingest Attachment:: - Remove support for Visio and potm files Plugin Lang Painless:: - Fix painless's regex lexer and error messages - Replace Painless's Cast with casting strategies - Fix Bad Casts In Painless Plugin Repository Azure:: - Azure blob store's readBlob() method first checks if the blob exists Plugin Repository S3:: - Handle BlobPath's trailing separator case. Add test cases to BlobPathTests.java Plugins:: - Fix delete of plugin directory on remove plugin - Use a marker file when removing a plugin Query DSL:: - FuzzyQueryBuilder should error when parsing array of values REST:: - [API] change wait_for_completion default according to docs - Deprecate request_cache for clear-cache - HTTP transport stashes the ThreadContext instead of the RestController - Ensure we try to autodetect content type for handlers that support plain text - Fix date format in warning headers - Align REST specs for HEAD requests - Correct warning header to be compliant - Fix get HEAD requests - Fix search scroll request with a plain text body - Handle bad HTTP requests - Fix get source HEAD requests - Properly encode location header - Fix template HEAD requests - Fix index HEAD requests - Fix alias HEAD requests Recovery:: - Provide target allocation id as part of start recovery request Reindex API:: - Fix throttled reindex_from_remote - Fix reindex with a remote source on a version before 2.0.0 - Make reindex wait for cleanup before responding Scripting:: - Remove unnecessary Groovy deprecation logging - Convert script/template objects to json format internally - Script: Fix value of `ctx._now` to be current epoch time in milliseconds Search:: - Cross Cluster Search: propagate original indices per cluster - Query string default field - Speed up parsing of large `terms` queries. - IndicesQueryCache should delegate the scorerSupplier method. - Fork LRUQueryCache from Lucene to work around LUCENE-7749 - Disable graph analysis at query time for shingle and cjk filters producing tokens of different size - Fix cross-cluster remote node gateway attributes - Use a fixed seed for computing term hashCode in TermsSliceQuery - Honor max concurrent searches in multi-search - Avoid stack overflow in multi-search - Fix query_string_query to transform "foo:*" in an exists query on the field name - Factor out filling of TopDocs in SearchPhaseController - Replace blocking calls in ExpandCollapseSearchResponseListener by asynchronous requests Search Templates:: - No longer add illegal content type option to stored search templates Settings:: - Do not set path.data in environment if not set - Correct handling of default and array settings - Fix merge scheduler config settings - Settings: Fix keystore cli prompting for yes/no to handle console returning null Similarities:: - Fix similarity upgrade when "default" similarity is overridden Snapshot/Restore:: - Fixes maintaining the shards a snapshot is waiting on - Fixes snapshot status on failed snapshots - Fixes snapshot deletion handling on in-progress snapshot failure - Prioritize listing index-N blobs over index.latest in reading snapshots Stats:: - Avoid overflow when computing total FS stats - Handle existence of cgroup version 2 hierarchy - Handle long overflow when adding paths' totals - Fix control group pattern - Fix total disk bytes returning negative value === Regressions Bulk:: - Fix _bulk response when it can't create an index === Upgrades Aggregations:: - Upgrade HDRHistogram to 2.1.9 Core:: - Upgrade to Lucene 6.5.0 - Upgrade from JNA 4.2.2 to JNA 4.4.0 - Upgrade to lucene-6.5.0-snapshot-d00c5ca - Upgrade to lucene-6.5.0-snapshot-f919485. Logging:: - Upgrade to Log4j 2.8.2 Network:: - Upgrade to Netty 4.1.9 - Upgrade to Netty 4.1.8 Plugin Repository Azure:: - Update to Azure Storage 5.0.0 |
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