状态查询
获取所有 _cat 系列的操作
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curl http://localhost:9200/_cat
=^.^=
/_cat/allocation
/_cat/shards
/_cat/shards/{index}
/_cat/master
/_cat/nodes
/_cat/tasks
/_cat/indices
/_cat/indices/{index}
/_cat/segments
/_cat/segments/{index}
/_cat/count
/_cat/count/{index}
/_cat/recovery
/_cat/recovery/{index}
/_cat/health
/_cat/pending_tasks
/_cat/aliases
/_cat/aliases/{alias}
/_cat/thread_pool
/_cat/thread_pool/{thread_pools}
/_cat/plugins
/_cat/fielddata
/_cat/fielddata/{fields}
/_cat/nodeattrs
/_cat/repositories
/_cat/snapshots/{repository}
/_cat/templates
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集群状态
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curl -X GET "localhost:9200/_cluster/health?pretty"
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节点状态
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curl -X GET "localhost:9200/_cat/nodes?pretty&v"
ip heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name
172.25.64.5 38 97 6 0.18 0.14 0.56 cdfhilmrstw - es02
172.25.64.3 54 97 6 0.18 0.14 0.56 cdfhilmrstw - es03
172.25.64.2 52 97 6 0.18 0.14 0.56 cdfhilmrstw * es01
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curl -X GET "localhost:9200/_nodes/stats/http?pretty"
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后面的 http 是查看的属性，另外还有 indices, fs, http, jvm, os, process, thread_pool, discovery 等，支持组合（如 indices,fs,http）
分片状态
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curl -X GET "localhost:9200/_cat/shards?v&pretty"
index shard prirep state docs store ip node
elk-demo-2023.01.14 0 p STARTED 98 64.2kb 172.25.64.5 es02
elk-demo-2023.01.14 0 r STARTED 98 31.2kb 172.25.64.3 es03
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分片中如果存在未分配的分片， 可以查看未分片的原因：_cat/shards?h=index,shard,prirep,state,unassigned.reason&v
索引
索引管理
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curl -X GET "localhost:9200/_cat/indices?v"
health status index uuid pri rep docs.count docs.deleted store.size pri.store.size
green open elk-demo-2023.01.13 _NX6po1HSs6-z_j0wVqBOw 1 1 6 0 40.2kb 20.1kb
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条件过滤：_cat/indices?v&health=yellow
排序：_cat/indices?v&health=yellow&s=docs.count:desc
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curl -X GET "localhost:9200/elk-demo-2023.01.14/_stats?pretty"
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curl -X GET "localhost:9200/_cat/count/elk-demo-2023.01.14?v&pretty"
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curl -X PUT -H "content-type:application/json" "localhost:9200/my_index" -d '
{
"settings" : {
"index" : {
"number_of_shards" : 3,
"number_of_replicas" : 2
}
}
}'
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curl -X DELETE "localhost:9200/my_index"
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curl -X POST -H "content-type:application/json" "localhost:9200/elk-demo-2023.01.14/_search" -d '
{
"query": {
"match": {
"message": "测试"
}
}
}'
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curl -X POST -H "content-type:application/json" "localhost:9200/elk-demo-2023.01.14/_search?pretty" -d '
{
"query": {
"match_phrase": {
"message": "测试"
}
}
}'
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别名
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curl -X GET "localhost:9200/_alias/elk-demo-2023.01.14?pretty"
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curl -X PUT "localhost:9200/elk-demo-2023.01.14/_alias/elk-demo-2023.01.14_alias?pretty"
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curl -X POST -H "content-type:application/json" 'http://localhost:9200/_aliases' -d '
{
"actions": [
{"remove": {"index": "elk-demo-2023.01.14", "alias": "elk-demo-2023.01.14_alias"}}
]
}'
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curl -X POST -H "content-type:application/json" 'http://localhost:9200/_aliases' -d '
{
"actions" : [
{ "remove" : { "index" : "elk-demo-2023.01.14", "alias" : "elk-demo-2023.01.14_alias" } },
{ "add" : { "index" : "elk-demo-2023.01.14_v2", "alias" : "elk-demo-2023.01.14_alias" } }
]
}'
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参考