简单命令监控elasticsearch集群状态


原理:

使用curl命令模拟访问任意一个es节点可以反馈的集群状态,集群的状态需要为green

curl -sXGET http://serverip:9200/_cluster/health/?pretty


{

  "cluster_name" : "yunva-es",

  "status" : "green",

  "timed_out" : false,

  "number_of_nodes" : 7,

  "number_of_data_nodes" : 6,

  "active_primary_shards" : 66,

  "active_shards" : 132,

  "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

}


前端使用了nginx验证,需要模拟登陆

curl模拟用户登录命令格式:

curl -u username:password -sXGET http://serverip:9200/_cluster/health/?pretty | grep "status"|awk -F '[ "]+' '{print $4}'


1.修改客户端zabbix配置:

vim /etc/zabbix/zabbix_agentd.conf


UserParameter=es_status,curl -u elkadmin:elkpass -sXGET http://serverip/_cluster/health/?pretty | grep "status"|awk -F '[ "]+' '{print $4}'|grep -c 'green'

zabbix通过简单shell命令监控elasticsearch集群状态_java

重启zabbix-agent使配置生效

service zabbix-agent restart


在zabbix-server端测试

zabbix_get -s ip -p 10050 -k es_status


2.在zabbix的web页面添加对应的监控:


添加监控项item

Confuguration --> Hosts --> 找到对应的主机,点开 Items --> Create item

zabbix通过简单shell命令监控elasticsearch集群状态_解决方法_02

zabbix通过简单shell命令监控elasticsearch集群状态_elasticsearch_03

创建触发器:

Name

es_status_check

es_cluster_status is not green

zabbix通过简单shell命令监控elasticsearch集群状态_触发器_04

3.针对es集群中的每个节点做进程监控,如果进程挂了自动重启

配置监控进程item

zabbix通过简单shell命令监控elasticsearch集群状态_bash_05

配置触发器

zabbix通过简单shell命令监控elasticsearch集群状态_java_06

配置action,看参考 


触发脚本:

/usr/local/zabbix-agent/scripts/start_es.sh

#!/bin/bash
# if elasticsearch exists kill it
source /etc/profile
count_es=`ps -ef|grep elasticsearch|grep -v grep|wc -l`
if [ $count_es -gt 1 ];then
ps -ef|grep elasticsearch|grep -v grep|/bin/kill `awk '{print $2}'`
fi
# start it

su yunva -c "cd /data/elasticsearch-5.0.1/bin && /bin/bash elasticsearch &"



执行:

sudo /bin/bash /usr/local/zabbix-agent/scripts/start_es.sh

报错:

which: no java in (/sbin:/bin:/usr/sbin:/usr/bin)

Could not find any executable java binary. Please install java in your PATH or set JAVA_HOME


解决办法:

在脚本中添加

source /etc/profile


以root用户运行elasticsearch


报错:

can not run elasticsearch as root


网上的方法,针对elasticsearch5.1不起作用

解决方法1:

在执行elasticSearch时加上参数-Des.insecure.allow.root=true,完整命令如下


./elasticsearch -Des.insecure.allow.root=true  

解决办法2:

用vi打开elasicsearch执行文件,在变量ES_JAVA_OPTS使用前添加以下命令


ES_JAVA_OPTS="-Des.insecure.allow.root=true"  


解决办法:

su yunva -c "cd /data/elasticsearch-5.0.1/bin && /bin/bash elasticsearch &"


自动拉起kibana服务的脚本:

cat /usr/local/zabbix/scripts/restart_kibana.sh

#!/bin/bash

# if kibana exists kill it


count_kibana=`ps -ef|grep kibana|grep -v grep|wc -l`

if [ $count_kibana -eq 1 ];then

    ps -ef|grep kibana|grep -v grep|/bin/kill `awk '{print $2}'`

fi

# start it


排错思路:

针对每台es的节点进行检查,发现有无法访问的,问题就出在这里了

# curl http://10.27.1.10:9200/

curl: (56) Recv failure: Connection reset by peer