- Elasticsearch Guide: other versions:
- Getting Started
- Setup
- Breaking changes
- Breaking changes in 2.3
- Breaking changes in 2.2
- Breaking changes in 2.1
- Breaking changes in 2.0
- Removed features
- Network changes
- Multiple
path.data
striping - Mapping changes
- CRUD and routing changes
- Query DSL changes
- Search changes
- Aggregation changes
- Parent/Child changes
- Scripting changes
- Index API changes
- Snapshot and Restore changes
- Plugin and packaging changes
- Setting changes
- Stats, info, and
cat
changes - Java API 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
- Filter Aggregation
- Filters Aggregation
- Geo Distance Aggregation
- GeoHash grid Aggregation
- Global Aggregation
- Histogram Aggregation
- IPv4 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
- 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
- Put Mapping
- Get Mapping
- Get Field Mapping
- Types Exists
- Index Aliases
- Update Indices Settings
- Get Settings
- Analyze
- Index Templates
- Warmers
- Shadow replica indices
- Indices Stats
- Indices Segments
- Indices Recovery
- Indices Shard Stores
- Clear Cache
- Flush
- Refresh
- Force Merge
- Optimize
- Upgrade
- cat APIs
- Cluster APIs
- Query DSL
- Mapping
- Field datatypes
- Meta-Fields
- Mapping parameters
analyzer
boost
coerce
copy_to
doc_values
dynamic
enabled
fielddata
format
geohash
geohash_precision
geohash_prefix
ignore_above
ignore_malformed
include_in_all
index
index_options
lat_lon
fields
norms
null_value
position_increment_gap
precision_step
properties
search_analyzer
similarity
store
term_vector
- Dynamic Mapping
- Transform
- Analysis
- 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
- Character Filters
- Modules
- Index Modules
- Testing
- Glossary of terms
- Release Notes
- 2.3.5 Release Notes
- 2.3.4 Release Notes
- 2.3.3 Release Notes
- 2.3.2 Release Notes
- 2.3.1 Release Notes
- 2.3.0 Release Notes
- 2.2.2 Release Notes
- 2.2.1 Release Notes
- 2.2.0 Release Notes
- 2.1.2 Release Notes
- 2.1.1 Release Notes
- 2.1.0 Release Notes
- 2.0.2 Release Notes
- 2.0.1 Release Notes
- 2.0.0 Release Notes
- 2.0.0-rc1 Release Notes
- 2.0.0-beta2 Release Notes
- 2.0.0-beta1 Release Notes
WARNING: Version 2.3 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.
Nodes Stats
editNodes Stats
editNodes statistics
editThe cluster nodes stats API allows to retrieve one or more (or all) of the cluster nodes statistics.
curl -XGET 'http://localhost:9200/_nodes/stats' curl -XGET 'http://localhost:9200/_nodes/nodeId1,nodeId2/stats'
The first command retrieves stats of all the nodes in the cluster. The
second command selectively retrieves nodes stats of only nodeId1
and
nodeId2
. All the nodes selective options are explained
here.
By default, all stats are returned. You can limit this by combining any
of indices
, os
, process
, jvm
, transport
, http
,
fs
, breaker
and thread_pool
. For example:
|
Indices stats about size, document count, indexing and deletion times, search times, field cache size, merges and flushes |
|
File system information, data path, free disk space, read/write stats (see FS information) |
|
HTTP connection information |
|
JVM stats, memory pool information, garbage collection, buffer pools, number of loaded/unloaded classes |
|
Operating system stats, load average, mem, swap (see OS statistics) |
|
Process statistics, memory consumption, cpu usage, open file descriptors (see Process statistics) |
|
Statistics about each thread pool, including current size, queue and rejected tasks |
|
Transport statistics about sent and received bytes in cluster communication |
|
Statistics about the field data circuit breaker |
# return indices and os curl -XGET 'http://localhost:9200/_nodes/stats/os' # return just os and process curl -XGET 'http://localhost:9200/_nodes/stats/os,process' # specific type endpoint curl -XGET 'http://localhost:9200/_nodes/stats/process' curl -XGET 'http://localhost:9200/_nodes/10.0.0.1/stats/process'
The all
flag can be set to return all the stats.
FS information
editThe fs
flag can be set to retrieve
information that concern the file system:
-
fs.timestamp
- Last time the file stores statistics have been refreshed
-
fs.total.total_in_bytes
- Total size (in bytes) of all file stores
-
fs.total.free_in_bytes
- Total number of unallocated bytes in all file stores
-
fs.total.available_in_bytes
- Total number of bytes available to this Java virtual machine on all file stores
-
fs.data
- List of all file stores
-
fs.data.path
- Path to the file store
-
fs.data.mount
- Mount point of the file store (ex: /dev/sda2)
-
fs.data.type
- Type of the file store (ex: ext4)
-
fs.data.total_in_bytes
- Total size (in bytes) of the file store
-
fs.data.free_in_bytes
- Total number of unallocated bytes in the file store
-
fs.data.available_in_bytes
- Total number of bytes available to this Java virtual machine on this file store
-
fs.data.spins
(Linux only) -
Indicates if the file store is backed by spinning storage.
null
means we could not determine it,true
means the device possibly spins andfalse
means it does not (ex: solid-state disks).
Operating System statistics
editThe os
flag can be set to retrieve statistics that concern
the operating system:
-
os.timestamp
- Last time the operating system statistics have been refreshed
-
os.percent
- Recent CPU usage for the whole system, or -1 if not supported
-
os.load_average
- System load average for the last minute, or -1 if not supported
-
os.mem.total_in_bytes
- Total amount of physical memory in bytes
-
os.mem.free_in_bytes
- Amount of free physical memory in bytes
-
os.mem.free_percent
- Percentage of free memory
-
os.mem.used_in_bytes
- Amount of used physical memory in bytes
-
os.mem.used_percent
- Percentage of used memory
-
os.swap.total_in_bytes
- Total amount of swap space in bytes
-
os.swap.free_in_bytes
- Amount of free swap space in bytes
-
os.swap.used_in_bytes
- Amount of used swap space in bytes
Process statistics
editThe process
flag can be set to retrieve statistics that concern
the current running process:
-
process.timestamp
- Last time the process statistics have been refreshed
-
process.open_file_descriptors
- Number of opened file descriptors associated with the current process, or -1 if not supported
-
process.max_file_descriptors
- Maximum number of file descriptors allowed on the system, or -1 if not supported
-
process.cpu.percent
- CPU usage in percent, or -1 if not known at the time the stats are computed
-
process.cpu.total_in_millis
- CPU time (in milliseconds) used by the process on which the Java virtual machine is running, or -1 if not supported
-
process.mem.total_virtual_in_bytes
- Size in bytes of virtual memory that is guaranteed to be available to the running process
Field data statistics
editYou can get information about field data memory usage on node level or on index level.
# Node Stats curl -XGET 'http://localhost:9200/_nodes/stats/indices/?fields=field1,field2&pretty' # Indices Stat curl -XGET 'http://localhost:9200/_stats/fielddata/?fields=field1,field2&pretty' # You can use wildcards for field names curl -XGET 'http://localhost:9200/_stats/fielddata/?fields=field*&pretty' curl -XGET 'http://localhost:9200/_nodes/stats/indices/?fields=field*&pretty'
Search groups
editYou can get statistics about search groups for searches executed on this node.
# All groups with all stats curl -XGET 'http://localhost:9200/_nodes/stats?pretty&groups=_all' # Some groups from just the indices stats curl -XGET 'http://localhost:9200/_nodes/stats/indices?pretty&groups=foo,bar'
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