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问题现象

突然接到线上Zabbix告警信息,报MYSQL所在的主机/分区不足15%,内容如下: Trigger: app-ali-prod-db1 / 可用空间不足 15%

Trigger status: PROBLEM

Trigger severity: Warning

Trigger URL:

Item values:

1. Free disk space on / (percentage) (app-ali-prod-db1:vfs.fs.size[/,pfree]): 12.68 %

2. *UNKNOWN* (*UNKNOWN*:*UNKNOWN*): *UNKNOWN*

3. *UNKNOWN* (*UNKNOWN*:*UNKNOWN*): *UNKNOWN*

接受到告警信息,那就登录到服务器看看怎么回事,什么东西占用了/分区: [nock@app-ali-prod-db1 nock]# sudo df -h

Filesystem Size Used Avail Use% Mounted on

/dev/vda1 20G 15G 3.6G 87% /

tmpfs 7.8G 0 7.8G 0% /dev/shm

/dev/vdb 394G 124G 251G 34% /data

[nock@app-ali-prod-db1 nock]# sudo df -h

Filesystem Size Used Avail Use% Mounted on

/dev/vda1 20G 19G 511M 98% /

tmpfs 7.8G 0 7.8G 0% /dev/shm

/dev/vdb 394G 124G 251G 34% /data

[nock@app-

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