- 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.
Plugins changes
editPlugins changes
editMapper attachments plugin
edit- The mapper attachments plugin has been deprecated in elasticsearch 5.0 and is now removed. You can use ingest attachment plugin instead.
S3 Repository plugin
edit- The bucket an s3 repository is configured with will no longer be created automatically. It must exist before the s3 repository is created.
-
Support for specifying s3 credentials through environment variables and
system properties has been removed. Use the
elasticsearch-keystore
tool to securely store the credentials. -
Specifying region has been removed. This includes the settings
cloud.aws.region
,cloud.aws.s3.region
,repositories.s3.region
, and specifying region inside the repository settings. Instead, specify the full endpoint if a custom s3 location is needed, or rely on the default behavior which automatically locates the region of the configured bucket. -
Specifying s3 signer type has been removed, including
cloud.aws.signer
andcloud.aws.s3.signer
. -
Global repositories settings have been removed. This includes
repositories.s3.bucket
,repositories.s3.server_side_encryption
,repositories.s3.buffer_size
,repositories.s3.max_retries
,repositories.s3.use_throttle_retries
,repositories.s3.chunk_size
,repositories.s3.compress
,repositories.s3.storage_class
,repositories.s3.canned_acl
,repositories.s3.base_path
, andrepositories.s3.path_style_access
. Instead, these settings should be set directly in the settings per repository. See S3 Repository settings. -
Shared client settings have been removed. This includes
cloud.aws.access_key
,cloud.aws.secret_key
,cloud.aws.protocol
,cloud.aws.proxy.host
,cloud.aws.proxy.port
,cloud.aws.proxy.username
,cloud.aws.proxy.password
,cloud.aws.signer
,cloud.aws.read_timeout
,cloud.aws.s3.access_key
,cloud.aws.s3.secret_key
,cloud.aws.s3.protocol
,cloud.aws.s3.proxy.host
,cloud.aws.s3.proxy.port
,cloud.aws.s3.proxy.username
,cloud.aws.s3.proxy.password
,cloud.aws.s3.signer
,cloud.aws.s3.read_timeout
,repositories.s3.access_key
,repositories.s3.secret_key
,repositories.s3.endpoint
andrepositories.s3.protocol
. Instead, use the new named client settings unders3.client.CLIENT_NAME.*
. -
The
path_style_access
setting has been removed. The repository will use the appropriate path style access based on the configured endpoint.
Azure Repository plugin
edit- The container an azure repository is configured with will no longer be created automatically. It must exist before the azure repository is created.
-
Global repositories settings you are able to set in elasticsearch config file under
repositories.azure
name space have been removed. This includesrepositories.azure.account
,repositories.azure.container
,repositories.azure.base_path
,repositories.azure.location_mode
,repositories.azure.chunk_size
andrepositories.azure.compress
. You must set those settings per repository instead. Respectivelyaccount
,container
,base_path
,location_mode
,chunk_size
andcompress
. See Azure Repository settings.
GCS Repository plugin
edit-
The
service_account
setting has been removed. A service account json credential file must now be specified in the elasticsearch keystore.
EC2 Discovery plugin
edit-
Specifying ec2 signer type has been removed, including
cloud.aws.signer
andcloud.aws.ec2.signer
. -
The region setting has been removed. This includes the settings
cloud.aws.region
andcloud.aws.ec2.region
. Instead, specify the full endpoint. -
All
cloud.aws.*
andcloud.aws.ec2.*
settings have been removed. Usediscovery.ec2.*
settings instead.
Ignoring hidden foldersedit
Previous versions of Elasticsearch would skip hidden files and directories when scanning the plugins folder. This leniency has been removed.
ICU Analysis plugin
editThe icu4j library has been upgraded to 59.1, Indices created in the previous major version will need to be reindexed in order to return correct (and correctly ordered) results, and to take advantage of new characters.
Plugins should not construct Environment
instances from Settings
editPreviously, plugins could construct an Environment
instance from Settings
to
discover the path to plugin-specific config files. This will no longer work in
all situations as the Settings
object does not carry the necessary information
for the config path to be set correctly. Instead, plugins that need to know the
config path should have a single constructor that accepts a pair of Settings
and Path
instances, and construct an Environment
using the corresponding
constructor on Environment
.
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