Zabbix报错:"Zabbix http poller processes more than 75% busy"的解决

一、钉钉收到告警

主机名称：Zabbix服务端-172.28.18.75
IP地址 ：127.0.0.1
告警时间：2019.10.22 13:34:39
告警信息：Zabbix http poller processes more than 75% busy
告警级别：Average
检查项 ：zabbix[process,http poller,avg,busy]
当前状态：PROBLEM
值=100 %
故障已持续8m

Zabbix的http轮询实例告警

二、修改配置文件

http poller processes跟配置文件中的StartHTTPPollers参数相关

打开配置文件搜索:StartHTTPPollers

[root@zabbix_server etc]# vim zabbix_server.conf

241 
242 ### Option: StartHTTPPollers
243 #   Number of pre-forked instances of HTTP pollers.
244 #
245 # Mandatory: no
246 # Range: 0-1000
247 # Default:
248 # StartHTTPPollers=1

系统还是默认配置，初始实例数为1，修改为10

242 ### Option: StartHTTPPollers
243 #   Number of pre-forked instances of HTTP pollers.
244 #
245 # Mandatory: no
246 # Range: 0-1000
247 # Default:
248 # StartHTTPPollers=1
249 StartHTTPPollers=10

三、重启Zabbix_server服务

[root@zabbix_server etc]# service zabbix_server restart
Shutting down zabbix_server: [确定]
Starting zabbix_server:  [确定]
[root@zabbix_server etc]# 

四、再次查看最新监控数据

 http poller 这一项最新数据已经降到17.18%了，告警解决。

五、Zabbix性能告警项对应的配置文件参数

当某个进程负载过高时调整相应的值：

Zabbix busy trapper processes, in % StartTrappers=5 
Zabbix busy poller processes, in % StartPollers=5 
Zabbix busy ipmi poller processes, in % StartIPMIPollers=0 
Zabbix busy discoverer processes, in % StartDiscoverers=1 
Zabbix busy icmp pinger processes, in % StartPingers=1 
Zabbix busy http poller processes, in % StartHTTPPollers=1 
Zabbix busy proxy poller processes, in % StartProxyPollers=1 
Zabbix busy unreachable poller processes, in % StartPollersUnreachable=1 
Zabbix busy java poller processes, in % StartJavaPollers=0 
Zabbix busy snmp trapper processes, in % StartSNMPTrapper=0 
Zabbix busy vmware collector processes, in % StartVMwareCollectors=0

当某项buffer不够时增大容量到合适的值：

Zabbix-server: Zabbix trend write cache, % free TrendCacheSize=4M 
Zabbix-server: Zabbix configuration cache, % free CacheSize=8M 
Zabbix-server: Zabbix text write cache, % free HistoryTextCacheSize=16M 
Zabbix-server: Zabbix history write cache, % free HistoryCacheSize=8M 
Zabbix-server: Zabbix value cache, % free ValueCacheSize=8M 
Zabbix-server: Zabbix vmware cache, % free VMwareCacheSize=8M