ES 分片未分配处理

PUT _cluster/settings
{
  "persistent": {
    "cluster.routing.allocation.disk.watermark.low": "85%",
    "cluster.routing.allocation.disk.watermark.high": "90%",
    "cluster.routing.allocation.disk.watermark.flood_stage": "95%"
  }
}

GET /_cluster/settings?include_defaults&flat_settings
PUT /_cluster/settings
{
  "transient": {
    "cluster.max_shards_per_node":"1200"
  }
}

GET _cat/indices?v&health=yellow
GET _cat/shards/tms_waybill_xxx?v
PUT _cluster/settings
{
  "transient": {
    "cluster.routing.allocation.enable":"all"
  }
}
GET _cluster/allocation/explain?pretty

修复分片
POST _cluster/reroute?retry_failed=true
GET /_cat/indices?v&health=red
GET /_cat/shards?v&h=n,index,shard,prirep,state,sto,sc,unassigned.reason,unassigned.details&s=sto,index
GET /_cluster/allocation/explain
{
  "index":"crm_express_month_201901",
  "shard":"1",
  "primary":true
}

POST /_cluster/reroute
{
  "commands": [
    {
      "move": {
        "index": "test", "shard": 0,
        "from_node": "node1", "to_node": "node2"
      }
    },
    {
      "allocate_replica": {
        "index": "test", "shard": 1,
        "node": "node3"
      }
    },
	{
      "allocate_stale_primary": {
        "index": "<index_name>",
        "shard": <shard_id>,
        "node": "<node_name>",
        "accept_data_loss": true
      }
    }
  ]
}

POST localhost:9200/twitter/_close?pretty
{
  "acknowledged": true
}
POST localhost:9200/twitter/_open?pretty
{
  "acknowledged": true,
  "shards_acknowledged": true
}