搭建了本地yum源，用yum list 测试报如下错误：
[root@heguol ~]# yum list
error: rpmdb: BDB0113 Thread/process ye67ww/139716328233400 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
解决方案：
1、删除/var/lib/rpm下的db文件
rm -rf /var/lib/rpm/__db.*
2、执行
rpm --rebuilddb