yum update 报错

使用yum update更新时突然出现一个奇怪的问题，记录一下解决方法。

0、错误内容：

[root@VM_0_2_centos ~]# yum  update
error: rpmdb: BDB0113 Thread/process 14918/139641861982272 failed: BDB1507 Thread died in Berkeley DB library
error: db5 error(-30973) from dbenv->failchk: BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery
error: cannot open Packages index using db5 -  (-30973)
error: cannot open Packages database in /var/lib/rpm
CRITICAL:yum.main:

Error: rpmdb open failed

1、解决方法

[root@VM_0_2_centos ~]# cd /var/lib/rpm
[root@VM_0_2_centos rpm]# ls
Basenames     __db.001  __db.003  Group       Name          Packages     Requirename  Sigmd5
Conflictname  __db.002  Dirnames  Installtid  Obsoletename  Providename  Sha1header   Triggername
[root@VM_0_2_centos rpm]# rm -rf __db*
[root@VM_0_2_centos rpm]# rpm --rebuilddb
[root@VM_0_2_centos rpm]# yum update