YUM故障

一、yum rdb错误

# 报错信息
~]# yum repolist
error: rpmdb: BDB0113 Thread/process 1267042/139919069162368 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
Error: Error: rpmdb open failed

解决方式一: 重启虚拟机
解决方式二: 
(1) Delete all files in /var/spool/up2date
# cd /var/spool/up2date
# rm *
# rm .*

(2) Ensure there are no processes with the RPM database files open. One way to do this is using lsof & ps as the root user:
# ps -aux | grep -e rpm -e yum -e up2date
# lsof | grep /var/lib/rpm


(3)If, and only if, there is no RPM database activity going on it is safe to delete the lock files.
WARNING: If the system is in multi-user mode it is possible that a process may open the RPM database at any time. Therefore, the recommended method for clearing stale locks is the reboot which cleans up the locks prior to entering multi-user mode.
# rm -f /var/lib/rpm/__db*