Zabbix3.2-Proxy超时的问题（first network error, wait for 15 seconds）

  1885:20170623:162728.307 Zabbix agent item "system.cpu.util[,nice]" on host "********" failed: first network error, wait for 15 seconds
  1917:20170623:162732.022 cannot send list of active checks to "××××××××": host ******** not found
  1916:20170623:162732.217 resuming Zabbix agent checks on host "********": connection restored
  1909:20170623:162745.184 Zabbix agent item "vfs.fs.inode[/boot,pfree]" on host "********" failed: first network error, wait for 15 seconds
  1916:20170623:162747.145 resuming Zabbix agent checks on host "********": connection restored
  1894:20170623:162752.395 Zabbix agent item "vfs.fs.size[/,used]" on host "********" failed: first network error, wait for 15 seconds

  1892:20170623:162753.448 Zabbix agent item "system.cpu.util[,system]" on host "********" failed: first network error, wait for 15 seconds

解决办法

这样的错误日志，并且在web端也没有画出图来。
解决方法：
1、编辑zabbix服务器端的配置文件/etc/zabbix/zabbix_proxy.conf找到"Timeout"把它定义为30秒或小于30秒。
2、如果还有类似提示则应该是zabbix服务器的内存设置得太小了，加大服务器内存便可。