- Elasticsearch Guide: other versions:
- Getting Started
- Set up Elasticsearch
- Installing Elasticsearch
- Configuring Elasticsearch
- Important Elasticsearch configuration
- Important System Configuration
- Bootstrap Checks
- Heap size check
- File descriptor check
- Memory lock check
- Maximum number of threads check
- Maximum size virtual memory check
- Max file size check
- Maximum map count check
- Client JVM check
- Use serial collector check
- System call filter check
- OnError and OnOutOfMemoryError checks
- Early-access check
- G1GC check
- Stopping Elasticsearch
- Upgrade Elasticsearch
- Set up X-Pack
- Breaking changes
- Breaking changes in 6.0
- Aggregations changes
- Analysis changes
- Cat API changes
- Clients changes
- Cluster changes
- Document API changes
- Indices changes
- Ingest changes
- Java API changes
- Mapping changes
- Packaging changes
- Percolator changes
- Plugins changes
- Reindex changes
- REST changes
- Scripting changes
- Search and Query DSL changes
- Settings changes
- Stats and info changes
- Breaking changes in 6.1
- Breaking changes in 6.0
- X-Pack Breaking Changes
- API Conventions
- Document APIs
- Search APIs
- Aggregations
- Metrics Aggregations
- Avg Aggregation
- Cardinality Aggregation
- Extended Stats Aggregation
- Geo Bounds Aggregation
- Geo Centroid Aggregation
- Max Aggregation
- Min Aggregation
- Percentiles Aggregation
- Percentile Ranks Aggregation
- Scripted Metric Aggregation
- Stats Aggregation
- Sum Aggregation
- Top Hits Aggregation
- Value Count Aggregation
- Bucket Aggregations
- Adjacency Matrix Aggregation
- Children Aggregation
- Composite Aggregation
- Date Histogram Aggregation
- Date Range Aggregation
- Diversified Sampler Aggregation
- Filter Aggregation
- Filters Aggregation
- Geo Distance Aggregation
- GeoHash grid Aggregation
- Global Aggregation
- Histogram Aggregation
- IP Range Aggregation
- Missing Aggregation
- Nested Aggregation
- Range Aggregation
- Reverse nested Aggregation
- Sampler Aggregation
- Significant Terms Aggregation
- Significant Text Aggregation
- Terms Aggregation
- Pipeline Aggregations
- Avg Bucket Aggregation
- Derivative Aggregation
- Max Bucket Aggregation
- Min Bucket Aggregation
- Sum Bucket Aggregation
- Stats Bucket Aggregation
- Extended Stats Bucket Aggregation
- Percentiles Bucket Aggregation
- Moving Average Aggregation
- Cumulative Sum Aggregation
- Bucket Script Aggregation
- Bucket Selector Aggregation
- Bucket Sort Aggregation
- Serial Differencing Aggregation
- Matrix Aggregations
- Caching heavy aggregations
- Returning only aggregation results
- Aggregation Metadata
- Returning the type of the aggregation
- Metrics Aggregations
- Indices APIs
- Create Index
- Delete Index
- Get Index
- Indices Exists
- Open / Close Index API
- Shrink Index
- Split Index
- Rollover Index
- Put Mapping
- Get Mapping
- Get Field Mapping
- Types Exists
- Index Aliases
- Update Indices Settings
- Get Settings
- Analyze
- Index Templates
- Indices Stats
- Indices Segments
- Indices Recovery
- Indices Shard Stores
- Clear Cache
- Flush
- Refresh
- Force Merge
- cat APIs
- Cluster APIs
- Query DSL
- Mapping
- Analysis
- Anatomy of an analyzer
- Testing analyzers
- Analyzers
- Normalizers
- Tokenizers
- Token Filters
- Standard Token Filter
- ASCII Folding Token Filter
- Flatten Graph Token Filter
- Length Token Filter
- Lowercase Token Filter
- Uppercase Token Filter
- NGram Token Filter
- Edge NGram Token Filter
- Porter Stem Token Filter
- Shingle Token Filter
- Stop Token Filter
- Word Delimiter Token Filter
- Word Delimiter Graph Token Filter
- Stemmer Token Filter
- Stemmer Override Token Filter
- Keyword Marker Token Filter
- Keyword Repeat Token Filter
- KStem Token Filter
- Snowball Token Filter
- Phonetic Token Filter
- Synonym Token Filter
- Synonym Graph Token Filter
- Compound Word Token Filters
- Reverse Token Filter
- Elision Token Filter
- Truncate Token Filter
- Unique Token Filter
- Pattern Capture Token Filter
- Pattern Replace Token Filter
- Trim Token Filter
- Limit Token Count Token Filter
- Hunspell Token Filter
- Common Grams Token Filter
- Normalization Token Filter
- CJK Width Token Filter
- CJK Bigram Token Filter
- Delimited Payload Token Filter
- Keep Words Token Filter
- Keep Types Token Filter
- Classic Token Filter
- Apostrophe Token Filter
- Decimal Digit Token Filter
- Fingerprint Token Filter
- Minhash Token Filter
- Character Filters
- Modules
- Index Modules
- Ingest Node
- Pipeline Definition
- Ingest APIs
- Accessing Data in Pipelines
- Handling Failures in Pipelines
- Processors
- Append Processor
- Convert Processor
- Date Processor
- Date Index Name Processor
- Fail Processor
- Foreach Processor
- Grok Processor
- Gsub Processor
- Join Processor
- JSON Processor
- KV Processor
- Lowercase Processor
- Remove Processor
- Rename Processor
- Script Processor
- Set Processor
- Split Processor
- Sort Processor
- Trim Processor
- Uppercase Processor
- Dot Expander Processor
- URL Decode Processor
- Monitoring Elasticsearch
- X-Pack APIs
- Info API
- Explore API
- Machine Learning APIs
- Close Jobs
- Create Datafeeds
- Create Jobs
- Delete Datafeeds
- Delete Jobs
- Delete Model Snapshots
- Flush Jobs
- Forecast Jobs
- Get Buckets
- Get Overall Buckets
- Get Categories
- Get Datafeeds
- Get Datafeed Statistics
- Get Influencers
- Get Jobs
- Get Job Statistics
- Get Model Snapshots
- Get Records
- Open Jobs
- Post Data to Jobs
- Preview Datafeeds
- Revert Model Snapshots
- Start Datafeeds
- Stop Datafeeds
- Update Datafeeds
- Update Jobs
- Update Model Snapshots
- Security APIs
- Watcher APIs
- Migration APIs
- Deprecation Info APIs
- Definitions
- X-Pack Commands
- How To
- Testing
- Glossary of terms
- Release Notes
- 6.1.4 Release Notes
- 6.1.3 Release Notes
- 6.1.2 Release Notes
- 6.1.1 Release Notes
- 6.1.0 Release Notes
- 6.0.1 Release Notes
- 6.0.0 Release Notes
- 6.0.0-rc2 Release Notes
- 6.0.0-rc1 Release Notes
- 6.0.0-beta2 Release Notes
- 6.0.0-beta1 Release Notes
- 6.0.0-alpha2 Release Notes
- 6.0.0-alpha1 Release Notes
- 6.0.0-alpha1 Release Notes (Changes previously released in 5.x)
- X-Pack Release Notes
WARNING: Version 6.1 of Elasticsearch has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
6.1.0 Release Notes
edit6.1.0 Release Notes
editAlso see Breaking changes in 6.0.
Breaking changes
edit- Network
- REST
- Scroll
-
- Fail queries with scroll that explicitely set request_cache #27342
- Search
Breaking Java changes
editDeprecations
edit- Aggregations
- Allocation
- Analysis
- Geo
-
- [GEO] 6x Deprecate ShapeBuilders and decouple geojson parse logic #27345
- Mapping
- Plugin Repository Azure
- Search
New features
editEnhancements
edit- Aggregations
- Allocation
-
- Tie-break shard path decision based on total number of shards on path #27039 (issue: #26654)
- Balance shards for an index more evenly across multiple data paths #26654 (issue: #16763)
- Expand "NO" decision message in NodeVersionAllocationDecider #26542 (issue: #10403)
- _reroute’s retry_failed flag should reset failure counter #25888 (issue: #25291)
- Analysis
- CRUD
- Core
-
- Fix classes that can exit #27518
- Replace empty index block checks with global block checks in template delete/put actions #27050 (issue: #10530)
- Allow Uid#decodeId to decode from a byte array slice #26987 (issue: #26931)
- Use separate searchers for "search visibility" vs "move indexing buffer to disk #26972 (issues: #15768, #26802, #26912, #3593)
- Add ability to split shards #26931
- Make circuit breaker mutations debuggable #26067 (issue: #25891)
- Dates
- Discovery
- Engine
- Geo
- Ingest
-
- add json-processor support for non-map json types #27335 (issue: #25972)
- Introduce templating support to timezone/locale in DateProcessor #27089 (issue: #24024)
- Add support for parsing inline script (#23824) #26846 (issue: #23824)
- Consolidate locale parsing. #26400
- Accept ingest simulate params as ints or strings #23885 (issue: #23823)
- Internal
- Java High Level REST Client
- Logging
- Mapping
- Nested Docs
- Network
- Percolator
-
- Use Lucene’s CoveringQuery to select percolate candidate matches #27271 (issues: #26081, #26307)
- Add support to percolate query to percolate multiple documents simultaneously #26418
- Hint what clauses are important in a conjunction query based on fields #26081
- Add support for selecting percolator query candidate matches containing range queries #25647 (issue: #21040)
- Plugin Discovery EC2
- Plugin Lang Painless
- Plugin Repository Azure
- Plugin Repository S3
- Plugins
- Query DSL
- Reindex API
- Rollover
- Scripting
-
- Script: Convert script query to a dedicated script context #26003
- Search
-
- Make fields optional in multi_match query and rely on index.query.default_field by default #27380
- fix unnecessary logger creation #27349
-
ObjectParser
: replaceIllegalStateException
withParsingException
#27302 (issue: #27147) - Uses norms for exists query if enabled #27237
- Cross-cluster search: make remote clusters optional #27182 (issues: #26118, #27161)
-
Enhances exists queries to reduce need for
_field_names
#26930 (issue: #26770) - Change ParentFieldSubFetchPhase to create doc values iterator once per segment #26815
- Change VersionFetchSubPhase to create doc values iterator once per segment #26809
- Change ScriptFieldsFetchSubPhase to create search scripts once per segment #26808 (issue: #26775)
- Make sure SortBuilders rewrite inner nested sorts #26532
- Extend testing of build method in ScriptSortBuilder #26520 (issues: #17286, #26490)
- Accept an array of field names and boosts in the index.query.default_field setting #26320 (issue: #25946)
- Reject IPv6-mapped IPv4 addresses when using the CIDR notation. #26254 (issue: #26078)
- Rewrite range queries with open bounds to exists query #26160 (issue: #22640)
- Sequence IDs
- Settings
-
- Allow affix settings to specify dependencies #27161
- Represent lists as actual lists inside Settings #26878 (issue: #26723)
- Remove Settings#getAsMap() #26845
- Replace group map settings with affix setting #26819
- Throw exception if setting isn’t recognized #26569 (issue: #25607)
- Settings: Move keystore creation to plugin installation #26329 (issue: #26309)
- Snapshot/Restore
- Stats
-
- Adds average document size to DocsStats #27117 (issue: #27004)
- Stats to record how often the ClusterState diff mechanism is used successfully #27107 (issue: #26973)
- Expose adaptive replica selection stats in /_nodes/stats API #27090
- Add cgroup memory usage/limit to OS stats on Linux #26166
-
Add segment attributes to the
_segments
API. #26157 (issue: #26130)
- Suggesters
Bug fixes
edit- Aggregations
- Cluster
- Core
-
- Do not set data paths on no local storage required #27587 (issue: #27572)
- Ensure threadcontext is preserved when refresh listeners are invoked #27565
- Ensure logging is configured for CLI commands #27523 (issue: #27521)
- Protect shard splitting from illegal target shards #27468 (issue: #26931)
- Avoid NPE when getting build information #27442
-
Fix
ShardSplittingQuery
to respect nested documents. #27398 (issue: #27378) - When building Settings do not set SecureSettings if empty #26988 (issue: #316)
- Engine
- Geo
- Index Templates
-
- Prevent constructing an index template without index patterns #27662
- Ingest
- Inner Hits
-
- Return an empty _source for nested inner hit when filtering on a field that doesn’t exist #27531
- Internal
- Java High Level REST Client
- Mapping
- Nested Docs
- Network
-
- Throw UOE from compressible bytes stream reset #27564 (issue: #24927)
- Bubble exceptions when closing compressible streams #27542 (issue: #27540)
- Do not set SO_LINGER on server channels #26997
- Do not set SO_LINGER to 0 when not shutting down #26871 (issue: #26764)
- Close TcpTransport on RST in some Spots to Prevent Leaking TIME_WAIT Sockets #26764 (issue: #26701)
- Packaging
- Percolator
- Plugin Analysis ICU
-
- Catch InvalidPathException in IcuCollationTokenFilterFactory #27202
- Plugin Lang Painless
- Plugin Repository GCS
- Recovery
- Reindex API
- Scroll
-
- Fix scroll query with a sort that is a prefix of the index sort #27498
- Search
-
- Fix profiling naming issues #27133
- Fix max score tracking with field collapsing #27122 (issue: #23840)
- Apply missing request options to the expand phase #27118 (issues: #26649, #27079)
- Calculate and cache result when advanceExact is called #26920 (issue: #26817)
- Filter unsupported relation for RangeQueryBuilder #26620 (issue: #26575)
- Handle leniency for phrase query on a field indexed without positions #26388
- Sequence IDs
- Settings
- Snapshot/Restore
-
- Do not swallow exception in ChecksumBlobStoreFormat.writeAtomic() #27597
- Delete shard store files before restoring a snapshot #27476 (issues: #20220, #26865)
- Fix snapshot getting stuck in INIT state #27214 (issue: #27180)
- Fix default value of ignore_unavailable for snapshot REST API (#25359) #27056 (issue: #25359)
- Do not create directory on readonly repository (#21495) #26909 (issue: #21495)
- Stats
Upgrades
edit- Core
- Plugin Discovery EC2
- Plugin Discovery GCE
- Plugin Lang Painless
-
- Upgrade Painless from ANTLR 4.5.1-1 to ANTLR 4.5.3. #27153
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