K8S部署ES集群

[root@k8s-master01 部署]# kubectl exec -ti es-0 -nwiseco --/bin/bash
[elasticsearch@es-0 /]$curl http://es-svc.wiseco.svc.cluster.local:9200
{
“名称”：“es-0.es-svc.wiseco.svc.cluster.local”，
"cluster_name" : "es-cluster",
"cluster_uuid": "K-AFavs-RaKjq60rMQG1WQ",
“版本” ： {
“数字”：“7.6.2”，
"build_flavor" : "默认",
“构建类型”：“焦油”，“build_hash”：“ef48eb35cf30adf4db14086e8aabd07ef6fb113f”，
“构建日期”：“2020-03-26T06：34：37.794943Z”，
“build_snapshot”：假，
“lucene_version”：“8.4.0”，
"minimum_wire_compatibility_version": "6.8.0",
“minimum_index_compatibility_version”：“6.0.0-beta1”
},
"tagline" : "你知道，用于搜索"
}

[elasticsearch@es-0 /]$curl -XGET“http://es-svc.wiseco.svc.cluster.local:9200/_cat/nodes”
172.30.135.154 11 54 2 0.13 0.31 0.25 迪尔姆 - es-2.es-svc.wiseco.svc.cluster.local
172.30.85.230 10 66 2 0.11 0.29 0.46 迪尔姆 * es-0.es-svc.wiseco.svc.cluster.local
172.30.217.85 6 65 1 0.22 0.21 0.21 迪尔姆 - es-1.es-svc.wiseco.svc.cluster.local
查看集群详细信息，后面添加“?v”
注：*号表示当前主节点
[elasticsearch@es-0 /]$ curl -XGET 'http://es-svc.wiseco.svc.cluster.local:9200/_cat/nodes?v'
ip             heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name
172.30.135.154           12          54   2    0.09    0.29     0.25 dilm      -      es-2.es-svc.wiseco.svc.cluster.local
172.30.85.230            12          66   1    0.07    0.27     0.45 dilm      *      es-0.es-svc.wiseco.svc.cluster.local
172.30.217.85             8          65   3    0.22    0.21     0.21 dilm      -      es-1.es-svc.wiseco.svc.cluster.local
查询集群状态方法
[elasticsearch@es-0 /]$ curl -XGET 'http://es-svc.wiseco.svc.cluster.local:9200/_cluster/state/nodes?pretty'
{
"cluster_name" : "es-cluster",
"cluster_uuid" : "K-AFavs-RaKjq60rMQG1WQ",
"nodes" : {
"HTD4h0xZRcO3uypCzmxfpQ" : {
"name" : "es-2.es-svc.wiseco.svc.cluster.local",
"ephemeral_id" : "OyTHKFt9Ska6-XGp1ucRsQ",
"transport_address" : "172.30.135.154:9300",
"attributes" : {
"ml.machine_memory" : "8370167808",
"ml.max_open_jobs" : "20",
"xpack.installed" : "true"
}
},
"ZyL8_6pHTjOwLXCzJDRyVw" : {
"name" : "es-0.es-svc.wiseco.svc.cluster.local",
"ephemeral_id" : "JATRby-lTzicDZb9oBoqUQ",
"transport_address" : "172.30.85.230:9300",
"attributes" : {
"ml.machine_memory" : "8366628864",
"xpack.installed" : "true",
"ml.max_open_jobs" : "20"
}
},
"KGQQtVrqR0CeajjARZY4LQ" : {
"name" : "es-1.es-svc.wiseco.svc.cluster.local",
"ephemeral_id" : "5NKITiKTTMWUI0QAXXX6qg",
"transport_address" : "172.30.217.85:9300",
"attributes" : {
"ml.machine_memory" : "8370184192",
"ml.max_open_jobs" : "20",
"xpack.installed" : "true"
}
}
}
}
查询集群中的master（下面两个命令都可以）
[elasticsearch@es-0 /]$ curl -XGET 'http://es-svc.wiseco.svc.cluster.local:9200/_cluster/state/master_node?pretty'
{
"cluster_name" : "es-cluster",
"cluster_uuid" : "K-AFavs-RaKjq60rMQG1WQ",
"master_node" : "ZyL8_6pHTjOwLXCzJDRyVw"
}
[elasticsearch@es-0 /]$ curl -XGET 'http://es-svc.wiseco.svc.cluster.local:9200/_cat/master?v'
id                     host          ip            node
ZyL8_6pHTjOwLXCzJDRyVw 172.30.85.230 172.30.85.230 es-0.es-svc.wiseco.svc.cluster.local
查询集群的健康状态（一共三种状态：green、yellow，red；其中green表示健康）
下面两个命令都可以
[elasticsearch@es-0 /]$ curl -XGET 'http://es-svc.wiseco.svc.cluster.local:9200/_cat/health?v'
epoch      timestamp cluster    status m.gsm-guard.net m.gsm-guard.net shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent
1613915456 13:50:56  es-cluster green           3         3      0   0    0    0        0             0                  -                100.0%
[elasticsearch@es-0 /]$ curl -XGET 'http://es-svc.wiseco.svc.cluster.local:9200/_cluster/health?pretty'
{
"cluster_name" : "es-cluster",
"status" : "green",
"timed_out" : false,
"number_of_nodes" : 3,
"number_of_data_nodes" : 3,
"active_primary_shards" : 0,
"active_shards" : 0,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 0,
"active_shards_percent_as_number" : 100.0
}