Elasticsearch的一些api随记

Health

/_cat/health

/_cluster/health

Indices health

/_cat/indices?health=red&v&s=store.size:desc,index

/_cat/indices?health=yellow&v&s=store.size:desc,index

/_cat/indices?health=green&v&s=store.size:desc,index

Nodes

/_cat/nodes?v

Cluster allocation explain related

/_cat/shards/index_name-*?v&s=state,index&h=index,shard,prirep,state,docs,store,ip,node,unassigned.reason

/_cluster/allocation/explain

Shards

/_cat/shards

/_cat/shards?index=index_name

Thread pool related

https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-thread-pool.html

/_cluster/settings?pretty&include_defaults=true | grep processors

get maximum number of threads info

curl "127.1:9200/_cat/thread_pool?v&h=ip,node_name,id,name,max,size,queue_size,queue,active,rejected&pretty"

Cluster settings

/_cluster/settings?include_defaults=true&pretty

/_cluster/settings?include_defaults=true

primaries recovery settings

{
    "transient": {
        "cluster": {
            "routing": {
                "allocation": {
                    "node_initial_primaries_recoveries": 10,
                    "node_concurrent_incoming_recoveries": null,
                    "node_concurrent_outgoing_recoveries": null,
                    "node_concurrent_recoveries": 20
                }
            }
        }
    }
}

- new version shard allocation config

cluster.routing.allocation.node_concurrent_recoveries

# es 6.8.2
# PUT /_cluster/settings
{
    "persistent": {
        "cluster": {
            "routing": {
                "allocation": {
                    "node_initial_primaries_recoveries": 8
                }
            }
        }
    }
}
   

Index settings

modify the number of replicas in bulk

{
  "index" : {
    "number_of_replicas" : 1
  }
}
 

get indices and order by number of replicas

/_cat/indices?health=green&v&s=rep:asc,store.size:desc,index