hadoop►elasticsearch►elasticsearch exploring your cluster

elasticsearch exploring your cluster

  1. cluster health

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    penn@ubuntu:~$ curl -XGET http://127.0.0.1:9200/_cat/health?v
    epoch      timestamp cluster   status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent
    1478891791 03:16:31  escluster green           1         1      0   0    0    0        0             0                  -                100.0%

    cluster    cluster名字
    status     green表示正常;yellow表示data正常,但replica不正常;red表示有问题

  2. nodes check

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    penn@ubuntu:~$ curl -XGET http://127.0.0.1:9200/_cat/nodes?v
    ip        heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name
    127.0.0.1            6          98   0    0.00    0.00     0.00 mdi       *      esnode

  3. List All Indices

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    penn@ubuntu:~$ curl -XGET http://127.0.0.1:9200/_cat/indices?v
    health status index uuid pri rep docs.count docs.deleted store.size pri.store.size

  4. Create an index

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    penn@ubuntu:~$ curl -XPUT http://127.0.0.1:9200/customer?pretty
    {
      "acknowledged" : true,
      "shards_acknowledged" : true
    }

    penn@ubuntu:~$ curl -XGET http://127.0.0.1:9200/_cat/indices?v
    health status index    uuid                   pri rep docs.count docs.deleted store.size pri.store.size
    yellow open   customer QRuRC4l0QBGJlX3BWGI1yQ   5   1          0            0       260b           260b

  5. Index and Query a Document

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    penn@ubuntu:~$ curl -XPUT '127.0.0.1:9200/customer/external/1?pretty&pretty' -d'
    > {
    >   "name": "penn"
    > }'
    {
      "_index" : "customer",
      "_type" : "external",
      "_id" : "1",
      "_version" : 1,
      "result" : "created",
      "_shards" : {
        "total" : 2,
        "successful" : 1,
        "failed" : 0
      },
      "created" : true
    }
    penn@ubuntu:~$ curl -XGET '127.0.0.1:9200/customer/external/1?pretty'
    {
      "_index" : "customer",
      "_type" : "external",
      "_id" : "1",
      "_version" : 1,
      "found" : true,
      "_source" : {
        "name" : "penn"
      }
    }

  6. Delete an index

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    penn@ubuntu:~$ curl -XGET http://127.0.0.1:9200/_cat/indices?v
    health status index    uuid                   pri rep docs.count docs.deleted store.size pri.store.size
    yellow open   customer QRuRC4l0QBGJlX3BWGI1yQ   5   1          1            0      3.7kb          3.7kb

    penn@ubuntu:~$ curl -XDELETE http://127.0.0.1:9200/customer?pretty
    {
      "acknowledged" : true
    }

    penn@ubuntu:~$ curl -XGET http://127.0.0.1:9200/_cat/indices?v
    health status index uuid pri rep docs.count docs.deleted store.size pri.store.size