Elasticsearchのcat indicesについて記す。
公式ドキュメント cat indices を参考にした。 www.elastic.co
検証環境: Elasticsearch 6.0.0-rc1
cat indicesは各インデックスの詳細情報を示す。cat indicesの情報はノードにまたがる。
bash-3.2$ curl -XGET 'localhost:9200/_cat/indices?v&s=index&pretty' health status index uuid pri rep docs.count docs.deleted store.size pri.store.size yellow open bank yaVaZLiLT2G0RyA-vBn5nw 5 1 1000 0 488.3kb 488.3kb yellow open customer tl6qvdROTfuL380eLOxH0Q 5 1 2 0 8.3kb 8.3kb yellow open indexusertest EO9eYTNoT-i7_L3PBIb7dQ 5 1 1 0 4.7kb 4.7kb yellow open noindextest LseoEEkrSiGuMeWXJNEMrA 5 1 1 0 4.7kb 4.7kb
Note:
* これに表示されている情報はLucene levelである。文書と削除された文書の数は Lucene APIsからとってきた情報であるため、すべてのhidden documents（ネストされた文書など）も含まれる。
* Elasticsearch levelで文書の実際の数を取得するには、cat countまたはCount APIのどちらかを使用することをすすめる。
bash-3.2$ curl -XGET 'localhost:9200/_cat/indices?v&health=yellow&pretty' health status index uuid pri rep docs.count docs.deleted store.size pri.store.size yellow open customer tl6qvdROTfuL380eLOxH0Q 5 1 2 0 8.3kb 8.3kb yellow open bank yaVaZLiLT2G0RyA-vBn5nw 5 1 1000 0 488.3kb 488.3kb yellow open noindextest LseoEEkrSiGuMeWXJNEMrA 5 1 1 0 4.7kb 4.7kb yellow open indexusertest EO9eYTNoT-i7_L3PBIb7dQ 5 1 1 0 4.7kb 4.7kb bash-3.2$ curl -XGET 'localhost:9200/_cat/indices?v&s=docs.count:desc&pretty' health status index uuid pri rep docs.count docs.deleted store.size pri.store.size yellow open bank yaVaZLiLT2G0RyA-vBn5nw 5 1 1000 0 488.3kb 488.3kb yellow open customer tl6qvdROTfuL380eLOxH0Q 5 1 2 0 8.3kb 8.3kb yellow open noindextest LseoEEkrSiGuMeWXJNEMrA 5 1 1 0 4.7kb 4.7kb yellow open indexusertest EO9eYTNoT-i7_L3PBIb7dQ 5 1 1 0 4.7kb 4.7kb bash-3.2$ curl -XGET 'localhost:9200/_cat/indices?pri&v&h=health,index,pri,rep,docs.count,mt&pretty' health index pri rep docs.count mt pri.mt yellow customer 5 1 2 0 0 yellow bank 5 1 1000 0 0 yellow noindextest 5 1 1 0 0 yellow indexusertest 5 1 1 0 0 bash-3.2$ curl -XGET 'localhost:9200/_cat/indices?v&h=i,tm&s=tm:desc&pretty' i tm bank 40.7kb customer 2.7kb noindextest 1.3kb indexusertest 1.3kb bash-3.2$ curl -XGET 'localhost:9200/_cat/indices?help&pretty' health | h | current health status status | s | open/close status index | i,idx | index name uuid | id,uuid | index uuid pri | p,shards.primary,shardsPrimary | number of primary shards rep | r,shards.replica,shardsReplica | number of replica shards docs.count | dc,docsCount | available docs docs.deleted | dd,docsDeleted | deleted docs creation.date | cd | index creation date (millisecond value) creation.date.string | cds | index creation date (as string) store.size | ss,storeSize | store size of primaries & replicas pri.store.size | | store size of primaries completion.size | cs,completionSize | size of completion pri.completion.size | | size of completion fielddata.memory_size | fm,fielddataMemory | used fielddata cache pri.fielddata.memory_size | | used fielddata cache fielddata.evictions | fe,fielddataEvictions | fielddata evictions pri.fielddata.evictions | | fielddata evictions query_cache.memory_size | qcm,queryCacheMemory | used query cache pri.query_cache.memory_size | | used query cache query_cache.evictions | qce,queryCacheEvictions | query cache evictions pri.query_cache.evictions | | query cache evictions request_cache.memory_size | rcm,requestCacheMemory | used request cache pri.request_cache.memory_size | | used request cache request_cache.evictions | rce,requestCacheEvictions | request cache evictions pri.request_cache.evictions | | request cache evictions request_cache.hit_count | rchc,requestCacheHitCount | request cache hit count pri.request_cache.hit_count | | request cache hit count request_cache.miss_count | rcmc,requestCacheMissCount | request cache miss count pri.request_cache.miss_count | | request cache miss count flush.total | ft,flushTotal | number of flushes pri.flush.total | | number of flushes flush.total_time | ftt,flushTotalTime | time spent in flush pri.flush.total_time | | time spent in flush get.current | gc,getCurrent | number of current get ops pri.get.current | | number of current get ops get.time | gti,getTime | time spent in get pri.get.time | | time spent in get get.total | gto,getTotal | number of get ops pri.get.total | | number of get ops get.exists_time | geti,getExistsTime | time spent in successful gets pri.get.exists_time | | time spent in successful gets get.exists_total | geto,getExistsTotal | number of successful gets pri.get.exists_total | | number of successful gets get.missing_time | gmti,getMissingTime | time spent in failed gets pri.get.missing_time | | time spent in failed gets get.missing_total | gmto,getMissingTotal | number of failed gets pri.get.missing_total | | number of failed gets indexing.delete_current | idc,indexingDeleteCurrent | number of current deletions pri.indexing.delete_current | | number of current deletions indexing.delete_time | idti,indexingDeleteTime | time spent in deletions pri.indexing.delete_time | | time spent in deletions indexing.delete_total | idto,indexingDeleteTotal | number of delete ops pri.indexing.delete_total | | number of delete ops indexing.index_current | iic,indexingIndexCurrent | number of current indexing ops pri.indexing.index_current | | number of current indexing ops indexing.index_time | iiti,indexingIndexTime | time spent in indexing pri.indexing.index_time | | time spent in indexing indexing.index_total | iito,indexingIndexTotal | number of indexing ops pri.indexing.index_total | | number of indexing ops indexing.index_failed | iif,indexingIndexFailed | number of failed indexing ops pri.indexing.index_failed | | number of failed indexing ops merges.current | mc,mergesCurrent | number of current merges pri.merges.current | | number of current merges merges.current_docs | mcd,mergesCurrentDocs | number of current merging docs pri.merges.current_docs | | number of current merging docs merges.current_size | mcs,mergesCurrentSize | size of current merges pri.merges.current_size | | size of current merges merges.total | mt,mergesTotal | number of completed merge ops pri.merges.total | | number of completed merge ops merges.total_docs | mtd,mergesTotalDocs | docs merged pri.merges.total_docs | | docs merged merges.total_size | mts,mergesTotalSize | size merged pri.merges.total_size | | size merged merges.total_time | mtt,mergesTotalTime | time spent in merges pri.merges.total_time | | time spent in merges refresh.total | rto,refreshTotal | total refreshes pri.refresh.total | | total refreshes refresh.time | rti,refreshTime | time spent in refreshes pri.refresh.time | | time spent in refreshes refresh.listeners | rli,refreshListeners | number of pending refresh listeners pri.refresh.listeners | | number of pending refresh listeners search.fetch_current | sfc,searchFetchCurrent | current fetch phase ops pri.search.fetch_current | | current fetch phase ops search.fetch_time | sfti,searchFetchTime | time spent in fetch phase pri.search.fetch_time | | time spent in fetch phase search.fetch_total | sfto,searchFetchTotal | total fetch ops pri.search.fetch_total | | total fetch ops search.open_contexts | so,searchOpenContexts | open search contexts pri.search.open_contexts | | open search contexts search.query_current | sqc,searchQueryCurrent | current query phase ops pri.search.query_current | | current query phase ops search.query_time | sqti,searchQueryTime | time spent in query phase pri.search.query_time | | time spent in query phase search.query_total | sqto,searchQueryTotal | total query phase ops pri.search.query_total | | total query phase ops search.scroll_current | scc,searchScrollCurrent | open scroll contexts pri.search.scroll_current | | open scroll contexts search.scroll_time | scti,searchScrollTime | time scroll contexts held open pri.search.scroll_time | | time scroll contexts held open search.scroll_total | scto,searchScrollTotal | completed scroll contexts pri.search.scroll_total | | completed scroll contexts segments.count | sc,segmentsCount | number of segments pri.segments.count | | number of segments segments.memory | sm,segmentsMemory | memory used by segments pri.segments.memory | | memory used by segments segments.index_writer_memory | siwm,segmentsIndexWriterMemory | memory used by index writer pri.segments.index_writer_memory | | memory used by index writer segments.version_map_memory | svmm,segmentsVersionMapMemory | memory used by version map pri.segments.version_map_memory | | memory used by version map segments.fixed_bitset_memory | sfbm,fixedBitsetMemory | memory used by fixed bit sets for nested object field types and type filters for types referred in _parent fields pri.segments.fixed_bitset_memory | | memory used by fixed bit sets for nested object field types and type filters for types referred in _parent fields warmer.current | wc,warmerCurrent | current warmer ops pri.warmer.current | | current warmer ops warmer.total | wto,warmerTotal | total warmer ops pri.warmer.total | | total warmer ops warmer.total_time | wtt,warmerTotalTime | time spent in warmers pri.warmer.total_time | | time spent in warmers suggest.current | suc,suggestCurrent | number of current suggest ops pri.suggest.current | | number of current suggest ops suggest.time | suti,suggestTime | time spend in suggest pri.suggest.time | | time spend in suggest suggest.total | suto,suggestTotal | number of suggest ops pri.suggest.total | | number of suggest ops memory.total | tm,memoryTotal | total used memory pri.memory.total | | total user memory