[root@mysql-slave src]# yum clean all

error: db3 error(22) from dbenv->open: 无效的参数

error: cannot open Packages index using db3 - 无效的参数 (22)

error: cannot open Packages database in /var/lib/rpm

CRITICAL:yum.main:

Error: rpmdb open failed

[root@mysql-slave src]# cd /var/lib/rpm/

[root@mysql-slave rpm]# ls

Basenames __db.001 __db.003 Dirnames Group Name Packages Provideversion Requirename Sha1header Triggername

Conflictname __db.002 __db.004 Filedigests Installtid Obsoletename Providename Pubkeys Requireversion Sigmd5

 

解决办法如下

[root@mysql-slave rpm]# rm -f __db.00*

[root@mysql-slave rpm]# yum clean all

已加载插件：fastestmirror

Cleaning repos: base extras updates

清理一切

Cleaning up list of fastest mirrors

[root@mysql-slave rpm]# yum repolist

已加载插件：fastestmirror

Determining fastest mirrors

* base: mirrors.aliyun.com

* extras: mirrors.aliyun.com

* updates: mirrors.aliyun.com

base | 3.7 kB 00:00

base/primary_db | 4.7 MB 00:03

extras | 3.4 kB 00:00

extras/primary_db | 30 kB 00:00

updates | 3.4 kB 00:00

updates/primary_db | 7.0 MB 00:06

仓库标识 仓库名称 状态

base CentOS-6 - Base 6,706

extras CentOS-6 - Extras 53

updates CentOS-6 - Updates 1,175

repolist: 7,934