qin

这些参数调大一些：
vim /usr/local/zabbix/etc/zabbix_server.conf
StartPollers=500
StartPollersUnreachable=50
StartTrappers=30
StartDiscoverers=6
CacheSize=1G
CacheUpdateFrequency=300
StartDBSyncers=20
HistoryCacheSize=512M
TrendCacheSize=256M
HistoryTextCacheSize=80M
ValueCacheSize=1G