Zabbix报错信息及遇到的问题

1.　页面报错  Error connecting to database: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

我的数据库sock文件在这     /data/mysql/mysql.sock

[root@bash-5 ~]# mkdir /var/lib/mysql/

[root@bash-5 ~]# ln -s /data/mysql/mysql.sock /var/lib/mysql/mysql.sock  

[root@bash-5 ~]# ll /var/lib/mysql/mysql.sock  
lrwxrwxrwx 1 root root 22 Feb 14 19:30 /var/lib/mysql/mysql.sock -> /data/mysql/mysql.sock

2.　Zabbix ( proxy ) poller processes more than 75% busy 问题

一：重启zabbix-server 结合定时任务

service zabbix-server restart

 crontab -e 新加一个定时任务：

@daily service zabbix-server restart > /dev/null 2>&1

二：编辑Zabbix Server的配置文件/etc/zabbix/zabbix_server.conf，找到配置StartPollers的段落：

### Option: StartPollers

#       Number of pre-forked instances of pollers.

#

# Mandatory: no

# Range: 0-1000

# Default:

# StartPollers=5

 直接在这增加一行：   StartPollers=10

Proxy的在这里: 

### Option: StartProxyPollers
# Number of pre-forked instances of pollers for passive proxies.
#
# Mandatory: no
# Range: 0-250
# Default:
# StartProxyPollers=1
StartProxyPollers=5

将参数配置改成多少取决于服务器的性能和监控的数量。内存足够的话可以设置高些

3.　Zabbix value cache working in low memory mode

[root@localhost zabbix] vi /etc/zabbix/zabbix_server.conf
### Option: CacheSize
# Size of configuration cache, in bytes.
# Shared memory size for storing host, item and trigger data.
#
# Mandatory: no
# Range: 128K-2G
# Default:
# CacheSize=8M
CacheSize=256M

[root@localhost zabbix]# systemctl restart zabbix-server

4.　Zabbix value cache working in low memory mode 

修改 zabbix_server.conf配置文件，定位到ValueCacheSize，然后调高ValueCacheSize大小，大小根据自己环境调整

### Option: ValueCacheSize
# Size of history value cache, in bytes.
# Shared memory size for caching item history data requests.
# Setting to 0 disables value cache.
#
# Mandatory: no
# Range: 0,128K-64G
# Default:
ValueCacheSize=64M       ####默认为8M

5.error: Failed dependencies

fping is needed by zabbix-server-mysql-3.4.8-1.el7.x86_64
libOpenIPMI.so.0()(64bit) is needed by zabbix-server-mysql-3.4.8-1.el7.x86_64
libOpenIPMIposix.so.0()(64bit) is needed by zabbix-server-mysql-3.4.8-1.el7.x86_64
libevent-2.0.so.5()(64bit) is needed by zabbix-server-mysql-3.4.8-1.el7.x86_64
libiksemel.so.3()(64bit) is needed by zabbix-server-mysql-3.4.8-1.el7.x86_64
libodbc.so.2()(64bit) is needed by zabbix-server-mysql-3.4.8-1.el7.x86_64

安装依赖包

yum install fping  libevent OpenIPMI iksemel  unixODBC  dejavu-sans-fonts