- Elasticsearch Guide: other versions:
- Getting Started
- Setup Elasticsearch
- Breaking changes
- Breaking changes in 5.1
- Breaking changes in 5.0
- Search and Query DSL changes
- Mapping changes
- Percolator changes
- Suggester changes
- Index APIs changes
- Document API changes
- Settings changes
- Allocation changes
- HTTP changes
- REST API changes
- CAT API changes
- Java API changes
- Packaging
- Plugin changes
- Filesystem related changes
- Path to data on disk
- Aggregation changes
- Script related 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
- Children 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
- 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
- Serial Differencing Aggregation
- Matrix Aggregations
- Caching heavy aggregations
- Returning only aggregation results
- Aggregation Metadata
- Metrics Aggregations
- Indices APIs
- Create Index
- Delete Index
- Get Index
- Indices Exists
- Open / Close Index API
- Shrink Index
- Rollover Index
- Put Mapping
- Get Mapping
- Get Field Mapping
- Types Exists
- Index Aliases
- Update Indices Settings
- Get Settings
- Analyze
- Index Templates
- Shadow replica indices
- 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
- Tokenizers
- Token Filters
- Standard Token Filter
- ASCII Folding 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
- 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
- Compound Word Token Filter
- 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
- Lowercase Processor
- Remove Processor
- Rename Processor
- Script Processor
- Set Processor
- Split Processor
- Sort Processor
- Trim Processor
- Uppercase Processor
- Dot Expander Processor
- How To
- Testing
- Glossary of terms
- Release Notes
- 5.1.2 Release Notes
- 5.1.1 Release Notes
- 5.1.0 Release Notes
- 5.0.2 Release Notes
- 5.0.1 Release Notes
- 5.0.0 Combined Release Notes
- 5.0.0 GA Release Notes
- 5.0.0-rc1 Release Notes
- 5.0.0-beta1 Release Notes
- 5.0.0-alpha5 Release Notes
- 5.0.0-alpha4 Release Notes
- 5.0.0-alpha3 Release Notes
- 5.0.0-alpha2 Release Notes
- 5.0.0-alpha1 Release Notes
- 5.0.0-alpha1 Release Notes (Changes previously released in 2.x)
WARNING: Version 5.1 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.
cat thread pool
editcat thread pool
editThe thread_pool
command shows cluster wide thread pool statistics per node. By default the active, queue and rejected
statistics are returned for all thread pools.
% curl 192.168.56.10:9200/_cat/thread_pool 0EWUhXe bulk 0 0 0 0EWUhXe fetch_shard_started 0 0 0 0EWUhXe fetch_shard_store 0 0 0 0EWUhXe flush 0 0 0 0EWUhXe force_merge 0 0 0 0EWUhXe generic 0 0 0 0EWUhXe get 0 0 0 0EWUhXe index 0 0 0 0EWUhXe listener 0 0 0 0EWUhXe management 1 0 0 0EWUhXe refresh 0 0 0 0EWUhXe search 0 0 0 0EWUhXe snapshot 0 0 0 0EWUhXe warmer 0 0 0
The first column is the node name
node_name 0EWUhXe
The second column is the thread pool name
name
bulk
fetch_shard_started
fetch_shard_store
flush
force_merge
generic
get
index
listener
management
refresh
search
snapshot
warmer
The next three columns show the active, queue, and rejected statistics for each thread pool
active queue rejected 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0
The cat thread pool API accepts a thread_pool_patterns
URL parameter for specifying a
comma-separated list of regular expressions to match thread pool names.
% curl 'localhost:9200/_cat/thread_pool/generic?v&h=id,name,active,rejected,completed' id name active rejected completed 0EWUhXeBQtaVGlexUeVwMg generic 0 0 70
Here the host columns and the active, rejected and completed suggest thread pool statistic are displayed.
All built-in thread pools and custom thread pools are available.
Thread Pool Fields
editFor each thread pool, you can load details about it by using the field names in the table below.
Field Name | Alias | Description |
---|---|---|
|
|
The current (*) type of thread pool ( |
|
|
The number of active threads in the current thread pool |
|
|
The number of threads in the current thread pool |
|
|
The number of tasks in the queue for the current thread pool |
|
|
The maximum number of tasks permitted in the queue for the current thread pool |
|
|
The number of tasks rejected by the thread pool executor |
|
|
The highest number of active threads in the current thread pool |
|
|
The number of tasks completed by the thread pool executor |
|
|
The configured minimum number of active threads allowed in the current thread pool |
|
|
The configured maximum number of active threads allowed in the current thread pool |
|
|
The configured keep alive time for threads |
Other Fields
editIn addition to details about each thread pool, it is also convenient to get an
understanding of where those thread pools reside. As such, you can request
other details like the ip
of the responding node(s).
Field Name | Alias | Description |
---|---|---|
|
|
The unique node ID |
|
|
The ephemeral node ID |
|
|
The process ID of the running node |
|
|
The hostname for the current node |
|
|
The IP address for the current node |
|
|
The bound transport port for the current node |
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