Elasticsearch的一些api随记

health

/_cat/health

/_cluster/health

nodes

/_cat/nodes

cluster allocation explain

/_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,queue_size,size,queue,rejected"

cluster settings

/_cluster/settings?include_defaults=true&pretty

/_cluster/settings?include_defaults=true

- 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
                }
            }
        }
    }
}