Elasticsearch性能优化

GET _search
{
  "query": {
    "match_all": {}
  }
}

GET _cat/indices


GET _cat/shards

 PUT /server-2023.02.09/_settings
{
    "number_of_replicas": 0
}


PUT /_cluster/settings
{
  "persistent": {
    "cluster.routing.allocation.disk.watermark.low": "90%",
    "cluster.routing.allocation.disk.watermark.high": "96%",
    "cluster.info.update.interval": "1m",
    "cluster.routing.allocation.disk.threshold_enabled": true
  }
}



PUT _cluster/settings
{
  "persistent" : {
    "cluster.routing.allocation.exclude._ip" : "10.5.234.66"
  },
      "transient" :{
      "cluster.routing.allocation.exclude._ip" : "10.5.234.66"
   }
}


PUT _cluster/settings
{
  "persistent" : {
    "cluster.routing.allocation.exclude._ip" : null
  },
      "transient" :{
      "cluster.routing.allocation.exclude._ip" : null
   }
}


GET _cluster/allocation/explain


GET _cluster/health


GET _cluster/settings

POST /_cluster/reroute?retry_failed=true


PUT _cluster/settings
{
   "persistent" : {
"cluster.routing.rebalance.enable" : "all"
}
}
PUT /_cluster/settings
{
  "transient": {
    "cluster.routing.allocation.node_initial_primaries_recoveries": 20
  }
}


PUT /_all/_settings
{
  "index.blocks.read_only_allow_delete": null
}


PUT /device-api-backend-2022.10.12/_settings
{
  "index.blocks.read_only_allow_delete": null
}

PUT /_cluster/settings
{
  "persistent": {
    "indices.recovery.concurrent_streams": 8
  }
}

GET /_cluster/settings

GET /_cat/nodes?v

PUT /_cluster/settings
{
  "persistent": {
    "cluster.routing.allocation.cluster_concurrent_rebalance": 6
  }
}