目标

Elasticsearch的健康检查

首先

elasticsearchの導入

$ brew install elasticsearch
$ echo "export ELASTICPATH=/usr/local/Cellar/elasticsearch/5.5.1/libexec/bin" >> .bashrc
# 起動
$ elasticsearch
# 確認
$ curl localhost:9200
{
  "name" : "MDffy-a",
  "cluster_name" : "elasticsearch_naopon",
  "cluster_uuid" : "Dzj28enNSkyAig0sZkyQZQ",
  "version" : {
    "number" : "5.5.1",
    "build_hash" : "19c13d0",
    "build_date" : "2017-07-18T20:44:24.823Z",
    "build_snapshot" : false,
    "lucene_version" : "6.6.0"
  },
  "tagline" : "You Know, for Search"
}

# cluster nameはここで設定されている
$ vim /usr/local/Cellar/elasticsearch/5.5.1/libexec/config/elasticsearch.yml
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: elasticsearch_naopon

# clusterの確認
$ curl localhost: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
1501895954 10:19:14  elasticsearch_naopon yellow          1         1      1   1    0    0        1             0                  -                 50.0%
# indexの確認
$ curl localhost:9200/_cat/indices?v
health status index   uuid                   pri rep docs.count docs.deleted store.size pri.store.size
yellow open   .kibana oFN9CZzIRASC5Eww1FFW0Q   1   1          1            0      3.1kb          3.1kb

clusterのstatus

集群健康状态有：绿色、黄色或红色。在分片层面上，红色状态表示特定分片未分配在集群中，黄色意味着主分片已分配但副本尚未分配，绿色表示所有分片都已分配。

kibana導入

$ mkdir ~/kibana && cd $_
$ wget https://artifacts.elastic.co/downloads/kibana/kibana-5.5.1-darwin-x86_64.tar.gz
$ tar zxvf kibana-5.5.1-darwin-x86_64.tar.gz
$ cd kibana-5.5.1-darwin-x86_64
$ bin/kibana

通过 http://localhost:5601/ 访问