ES集群重启

操作步骤：

1. Disable shard allocation

curl -XPUT 'localhost:9200/_cluster/settings?pretty' -d '
{
  "persistent": {
    "cluster.routing.allocation.enable": "none"
  }
}'

2. Perform a synced flush

curl -XPOST 'localhost:9200/_flush/synced?pretty'

3. Shutdown and upgrade all nodes

4. Upgrade any plugins

5. Start the cluster

建议优先启动node.master:true，node.data:false的节点，用

curl -XGET 'localhost:9200/_cat/health?pretty'
curl -XGET 'localhost:9200/_cat/nodes?pretty'

命令确认所有节点加入集群

6. Wait for yellow

用

curl -XGET 'localhost:9200/_cat/health?pretty'

命令确认集群所处于yellow状态

7. Reenable allocation

curl -XPUT 'localhost:9200/_cluster/settings?pretty' -d '
{
  "persistent": {
    "cluster.routing.allocation.enable": "all"
  }
}'

完成

官方链接：

https://www.elastic.co/guide/en/elasticsearch/reference/current/restart-upgrade.html