85 lines
2.9 KiB
Plaintext
85 lines
2.9 KiB
Plaintext
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[[indices-stats]]
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== Indices Stats
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Indices level stats provide statistics on different operations happening
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on an index. The API provides statistics on the index level scope
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(though most stats can also be retrieved using node level scope).
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The following returns high level aggregation and index level stats for
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all indices:
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[source,js]
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--------------------------------------------------
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curl localhost:9200/_stats
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--------------------------------------------------
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Specific index stats can be retrieved using:
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[source,js]
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--------------------------------------------------
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curl localhost:9200/index1,index2/_stats
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--------------------------------------------------
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By default, `docs`, `store`, and `indexing`, `get`, and `search` stats
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are returned, other stats can be enabled as well:
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[horizontal]
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`docs`:: The number of docs / deleted docs (docs not yet merged out).
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Note, affected by refreshing the index.
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`store`:: The size of the index.
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`indexing`:: Indexing statistics, can be combined with a comma
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separated list of `types` to provide document type level stats.
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`get`:: Get statistics, including missing stats.
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`search`:: Search statistics, including custom grouping using the
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`groups` parameter (search operations can be associated with one or more
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groups).
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`warmer`:: Warmer statistics.
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`merge`:: merge stats.
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`flush`:: flush stats.
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`refresh`:: refresh stats.
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`clear`:: Clears all the flags (first).
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Here are some samples:
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[source,js]
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--------------------------------------------------
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# Get back stats for merge and refresh on top of the defaults
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curl 'localhost:9200/_stats?merge=true&refresh=true'
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# Get back stats just for flush
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curl 'localhost:9200/_stats?clear=true&flush=true'
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# Get back stats for type1 and type2 documents for the my_index index
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curl 'localhost:9200/my_index/_stats?clear=true&indexing=true&types=type1,type2
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--------------------------------------------------
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The stats returned are aggregated on the index level, with
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`primaries` and `total` aggregations. In order to get back shard level
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stats, set the `level` parameter to `shards`.
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Note, as shards move around the cluster, their stats will be cleared as
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they are created on other nodes. On the other hand, even though a shard
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"left" a node, that node will still retain the stats that shard
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contributed to.
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[float]
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=== Specific stats endpoints
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Instead of using flags to indicate which stats to return, specific REST
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endpoints can be used, for example:
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[source,js]
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--------------------------------------------------
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# Merge stats across all indices
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curl localhost:9200/_stats/merge
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# Merge stats for the my_index index
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curl localhost:9200/my_index/_stats/merge
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# Indexing stats for my_index
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curl localhost:9200/my_index/_stats/indexing
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# Indexing stats for my_index for my_type1 and my_type2
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curl localhost:9200/my_index/_stats/indexing/my_type1,my_type2
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--------------------------------------------------
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