number_of_shards的理解

2019-08-10  本文已影响0人  秦汉邮侠

分片理论知识

实验一

//添加索引setting
PUT twitter
{
    "settings" : {
        "number_of_shards" : 2,
        "number_of_replicas" : 0
    }
}
//查看索引setting
GET /twitter/_settings
//插入数据
PUT /twitter/_doc/1?pretty
{
  "name": "John Doe"
}
GET /_cat/indices/twitter?v

health status index   uuid                   pri rep docs.count docs.deleted store.size pri.store.size
green  open   twitter GQDcXrB7R0KwzHJnAcRePg   2   0          1            0      3.7kb          3.7kb
GET _cat/shards/twitter?v

index   shard prirep state   docs store ip            node
twitter 1     p      STARTED    0  283b 192.168.1.100 node-2
twitter 0     p      STARTED    1 3.5kb 192.168.1.104 node-3
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