Get shard information Generally available
All methods and paths for this operation:
Get information about the shards in a cluster. For data streams, the API returns information about the backing indices. IMPORTANT: cat APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications.
Required authorization
- Index privileges:
monitor
- Cluster privileges:
monitor
Path parameters
-
A comma-separated list of data streams, indices, and aliases used to limit the request. Supports wildcards (
*
). To target all data streams and indices, omit this parameter or use*
or_all
.
Query parameters
-
The unit used to display byte values.
Values are
b
,kb
,mb
,gb
,tb
, orpb
. -
List of columns to appear in the response. Supports simple wildcards.
Supported values include:
completion.size
(orcs
,completionSize
): Size of completion. For example:0b
.dataset.size
: Disk space used by the shard’s dataset, which may or may not be the size on disk, but includes space used by the shard on object storage. Reported as a size value for example:5kb
.dense_vector.value_count
(ordvc
,denseVectorCount
): Number of indexed dense vectors.docs
(ord
,dc
): Number of documents in shard, for example:25
.fielddata.evictions
(orfe
,fielddataEvictions
): Fielddata cache evictions, for example:0
.fielddata.memory_size
(orfm
,fielddataMemory
): Used fielddata cache memory, for example:0b
.flush.total
(orft
,flushTotal
): Number of flushes, for example:1
.flush.total_time
(orftt
,flushTotalTime
): Time spent in flush, for example:1
.get.current
(orgc
,getCurrent
): Number of current get operations, for example:0
.get.exists_time
(orgeti
,getExistsTime
): Time spent in successful gets, for example:14ms
.get.exists_total
(orgeto
,getExistsTotal
): Number of successful get operations, for example:2
.get.missing_time
(orgmti
,getMissingTime
): Time spent in failed gets, for example:0s
.get.missing_total
(orgmto
,getMissingTotal
): Number of failed get operations, for example:1
.get.time
(orgti
,getTime
): Time spent in get, for example:14ms
.get.total
(orgto
,getTotal
): Number of get operations, for example:2
.id
: ID of the node, for example:k0zy
.index
(ori
,idx
): Name of the index.indexing.delete_current
(oridc
,indexingDeleteCurrent
): Number of current deletion operations, for example:0
.indexing.delete_time
(oridti
,indexingDeleteTime
): Time spent in deletions, for example:2ms
.indexing.delete_total
(oridto
,indexingDeleteTotal
): Number of deletion operations, for example:2
.indexing.index_current
(oriic
,indexingIndexCurrent
): Number of current indexing operations, for example:0
.indexing.index_failed_due_to_version_conflict
(oriifvc
,indexingIndexFailedDueToVersionConflict
): Number of failed indexing operations due to version conflict, for example:0
.indexing.index_failed
(oriif
,indexingIndexFailed
): Number of failed indexing operations, for example:0
.indexing.index_time
(oriiti
,indexingIndexTime
): Time spent in indexing, such as for example:134ms
.indexing.index_total
(oriito
,indexingIndexTotal
): Number of indexing operations, for example:1
.ip
: IP address of the node, for example:127.0.1.1
.merges.current
(ormc
,mergesCurrent
): Number of current merge operations, for example:0
.merges.current_docs
(ormcd
,mergesCurrentDocs
): Number of current merging documents, for example:0
.merges.current_size
(ormcs
,mergesCurrentSize
): Size of current merges, for example:0b
.merges.total
(ormt
,mergesTotal
): Number of completed merge operations, for example:0
.merges.total_docs
(ormtd
,mergesTotalDocs
): Number of merged documents, for example:0
.merges.total_size
(ormts
,mergesTotalSize
): Size of current merges, for example:0b
.merges.total_time
(ormtt
,mergesTotalTime
): Time spent merging documents, for example:0s
.node
(orn
): Node name, for example:I8hydUG
.prirep
(orp
,pr
,primaryOrReplica
): Shard type. Returned values areprimary
orreplica
.query_cache.evictions
(orqce
,queryCacheEvictions
): Query cache evictions, for example:0
.query_cache.memory_size
(orqcm
,queryCacheMemory
): Used query cache memory, for example:0b
.recoverysource.type
(orrs
): Type of recovery source.refresh.time
(orrti
,refreshTime
): Time spent in refreshes, for example:91ms
.refresh.total
(orrto
,refreshTotal
): Number of refreshes, for example:16
.search.fetch_current
(orsfc
,searchFetchCurrent
): Current fetch phase operations, for example:0
.search.fetch_time
(orsfti
,searchFetchTime
): Time spent in fetch phase, for example:37ms
.search.fetch_total
(orsfto
,searchFetchTotal
): Number of fetch operations, for example:7
.search.open_contexts
(orso
,searchOpenContexts
): Open search contexts, for example:0
.search.query_current
(orsqc
,searchQueryCurrent
): Current query phase operations, for example:0
.search.query_time
(orsqti
,searchQueryTime
): Time spent in query phase, for example:43ms
.search.query_total
(orsqto
,searchQueryTotal
): Number of query operations, for example:9
.search.scroll_current
(orscc
,searchScrollCurrent
): Open scroll contexts, for example:2
.search.scroll_time
(orscti
,searchScrollTime
): Time scroll contexts held open, for example:2m
.search.scroll_total
(orscto
,searchScrollTotal
): Completed scroll contexts, for example:1
.segments.count
(orsc
,segmentsCount
): Number of segments, for example:4
.segments.fixed_bitset_memory
(orsfbm
,fixedBitsetMemory
): Memory used by fixed bit sets for nested object field types and type filters for types referred in join fields, for example:1.0kb
.segments.index_writer_memory
(orsiwm
,segmentsIndexWriterMemory
): Memory used by index writer, for example:18mb
.segments.memory
(orsm
,segmentsMemory
): Memory used by segments, for example:1.4kb
.segments.version_map_memory
(orsvmm
,segmentsVersionMapMemory
): Memory used by version map, for example:1.0kb
.seq_no.global_checkpoint
(orsqg
,globalCheckpoint
): Global checkpoint.seq_no.local_checkpoint
(orsql
,localCheckpoint
): Local checkpoint.seq_no.max
(orsqm
,maxSeqNo
): Maximum sequence number.shard
(ors
,sh
): Name of the shard.dsparse_vector.value_count
(orsvc
,sparseVectorCount
): Number of indexed sparse vectors.state
(orst
): State of the shard. Returned values are:INITIALIZING
: The shard is recovering from a peer shard or gateway.RELOCATING
: The shard is relocating.STARTED
: The shard has started.UNASSIGNED
: The shard is not assigned to any node.
store
(orsto
): Disk space used by the shard, for example:5kb
.suggest.current
(orsuc
,suggestCurrent
): Number of current suggest operations, for example:0
.suggest.time
(orsuti
,suggestTime
): Time spent in suggest, for example:0
.suggest.total
(orsuto
,suggestTotal
): Number of suggest operations, for example:0
.sync_id
: Sync ID of the shard.unassigned.at
(orua
): Time at which the shard became unassigned in Coordinated Universal Time (UTC).unassigned.details
(orud
): Details about why the shard became unassigned. This does not explain why the shard is currently unassigned. To understand why a shard is not assigned, use the Cluster allocation explain API.unassigned.for
(oruf
): Time at which the shard was requested to be unassigned in Coordinated Universal Time (UTC).unassigned.reason
(orur
): Indicates the reason for the last change to the state of this unassigned shard. This does not explain why the shard is currently unassigned. To understand why a shard is not assigned, use the Cluster allocation explain API. Returned values include:ALLOCATION_FAILED
: Unassigned as a result of a failed allocation of the shard.CLUSTER_RECOVERED
: Unassigned as a result of a full cluster recovery.DANGLING_INDEX_IMPORTED
: Unassigned as a result of importing a dangling index.EXISTING_INDEX_RESTORED
: Unassigned as a result of restoring into a closed index.FORCED_EMPTY_PRIMARY
: The shard’s allocation was last modified by forcing an empty primary using the Cluster reroute API.INDEX_CLOSED
: Unassigned because the index was closed.INDEX_CREATED
: Unassigned as a result of an API creation of an index.INDEX_REOPENED
: Unassigned as a result of opening a closed index.MANUAL_ALLOCATION
: The shard’s allocation was last modified by the Cluster reroute API.NEW_INDEX_RESTORED
: Unassigned as a result of restoring into a new index.NODE_LEFT
: Unassigned as a result of the node hosting it leaving the cluster.NODE_RESTARTING
: Similar toNODE_LEFT
, except that the node was registered as restarting using the Node shutdown API.PRIMARY_FAILED
: The shard was initializing as a replica, but the primary shard failed before the initialization completed.REALLOCATED_REPLICA
: A better replica location is identified and causes the existing replica allocation to be cancelled.REINITIALIZED
: When a shard moves from started back to initializing.REPLICA_ADDED
: Unassigned as a result of explicit addition of a replica.REROUTE_CANCELLED
: Unassigned as a result of explicit cancel reroute command.
Values are
completion.size
,cs
,completionSize
,dataset.size
,dense_vector.value_count
,dvc
,denseVectorCount
,docs
,d
,dc
,fielddata.evictions
,fe
,fielddataEvictions
,fielddata.memory_size
,fm
,fielddataMemory
,flush.total
,ft
,flushTotal
,flush.total_time
,ftt
,flushTotalTime
,get.current
,gc
,getCurrent
,get.exists_time
,geti
,getExistsTime
,get.exists_total
,geto
,getExistsTotal
,get.missing_time
,gmti
,getMissingTime
,get.missing_total
,gmto
,getMissingTotal
,get.time
,gti
,getTime
,get.total
,gto
,getTotal
,id
,index
,i
,idx
,indexing.delete_current
,idc
,indexingDeleteCurrent
,indexing.delete_time
,idti
,indexingDeleteTime
,indexing.delete_total
,idto
,indexingDeleteTotal
,indexing.index_current
,iic
,indexingIndexCurrent
,indexing.index_failed_due_to_version_conflict
,iifvc
,indexingIndexFailedDueToVersionConflict
,indexing.index_failed
,iif
,indexingIndexFailed
,indexing.index_time
,iiti
,indexingIndexTime
,indexing.index_total
,iito
,indexingIndexTotal
,ip
,merges.current
,mc
,mergesCurrent
,merges.current_docs
,mcd
,mergesCurrentDocs
,merges.current_size
,mcs
,mergesCurrentSize
,merges.total
,mt
,mergesTotal
,merges.total_docs
,mtd
,mergesTotalDocs
,merges.total_size
,mts
,mergesTotalSize
,merges.total_time
,mtt
,mergesTotalTime
,node
,n
,prirep
,p
,pr
,primaryOrReplica
,query_cache.evictions
,qce
,queryCacheEvictions
,query_cache.memory_size
,qcm
,queryCacheMemory
,recoverysource.type
,rs
,refresh.time
,rti
,refreshTime
,refresh.total
,rto
,refreshTotal
,search.fetch_current
,sfc
,searchFetchCurrent
,search.fetch_time
,sfti
,searchFetchTime
,search.fetch_total
,sfto
,searchFetchTotal
,search.open_contexts
,so
,searchOpenContexts
,search.query_current
,sqc
,searchQueryCurrent
,search.query_time
,sqti
,searchQueryTime
,search.query_total
,sqto
,searchQueryTotal
,search.scroll_current
,scc
,searchScrollCurrent
,search.scroll_time
,scti
,searchScrollTime
,search.scroll_total
,scto
,searchScrollTotal
,segments.count
,sc
,segmentsCount
,segments.fixed_bitset_memory
,sfbm
,fixedBitsetMemory
,segments.index_writer_memory
,siwm
,segmentsIndexWriterMemory
,segments.memory
,sm
,segmentsMemory
,segments.version_map_memory
,svmm
,segmentsVersionMapMemory
,seq_no.global_checkpoint
,sqg
,globalCheckpoint
,seq_no.local_checkpoint
,sql
,localCheckpoint
,seq_no.max
,sqm
,maxSeqNo
,shard
,s
,sh
,dsparse_vector.value_count
,svc
,sparseVectorCount
,state
,st
,store
,sto
,suggest.current
,suc
,suggestCurrent
,suggest.time
,suti
,suggestTime
,suggest.total
,suto
,suggestTotal
,sync_id
,unassigned.at
,ua
,unassigned.details
,ud
,unassigned.for
,uf
,unassigned.reason
, orur
. -
A comma-separated list of column names or aliases that determines the sort order. Sorting defaults to ascending and can be changed by setting
:asc
or:desc
as a suffix to the column name. -
The period to wait for a connection to the master node.
Values are
-1
or0
. -
The unit used to display time values.
Values are
nanos
,micros
,ms
,s
,m
,h
, ord
.
GET _cat/shards?format=json
resp = client.cat.shards( format="json", )
const response = await client.cat.shards({ format: "json", });
response = client.cat.shards( format: "json" )
$resp = $client->cat()->shards([ "format" => "json", ]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/shards?format=json"
client.cat().shards();
[ { "index": "my-index-000001", "shard": "0", "prirep": "p", "state": "STARTED", "docs": "3014", "store": "31.1mb", "dataset": "249b", "ip": "192.168.56.10", "node": "H5dfFeA" } ]
[ { "index": "my-index-000001", "shard": "0", "prirep": "p", "state": "STARTED", "docs": "3014", "store": "31.1mb", "dataset": "249b", "ip": "192.168.56.10", "node": "H5dfFeA" } ]
[ { "index": "my-index-000001", "shard": "0", "prirep": "p", "state": "RELOCATING", "docs": "3014", "store": "31.1mb", "dataset": "249b", "ip": "192.168.56.10", "node": "H5dfFeA -> -> 192.168.56.30 bGG90GE" } ]
[ { "index": "my-index-000001", "shard": "0", "prirep": "p", "state": "STARTED", "docs": "3014", "store": "31.1mb", "dataset": "249b", "ip": "192.168.56.10", "node": "H5dfFeA" }, { "index": "my-index-000001", "shard": "0", "prirep": "r", "state": "INITIALIZING", "docs": "0", "store": "14.3mb", "dataset": "249b", "ip": "192.168.56.30", "node": "bGG90GE" } ]
[ { "index": "my-index-000001", "shard": "0", "prirep": "p", "state": "STARTED", "unassigned.reason": "3014 31.1mb 192.168.56.10 H5dfFeA" }, { "index": "my-index-000001", "shard": "0", "prirep": "r", "state": "STARTED", "unassigned.reason": "3014 31.1mb 192.168.56.30 bGG90GE" }, { "index": "my-index-000001", "shard": "0", "prirep": "r", "state": "STARTED", "unassigned.reason": "3014 31.1mb 192.168.56.20 I8hydUG" }, { "index": "my-index-000001", "shard": "0", "prirep": "r", "state": "UNASSIGNED", "unassigned.reason": "ALLOCATION_FAILED" } ]