OS + Centos 7 rpm install exception / yum insall exception

[root@lindow yum.repos.d]# yum install nc

error: rpmdb: BDB0113 Thread/process 5886/140207620982784 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

[root@lindows yum.repos.d]# rpm -qa

error: rpmdb: BDB0113 Thread/process 5886/140207620982784 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: rpmdb: BDB0113 Thread/process 5886/140207620982784 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 database in /var/lib/rpm

https://www.cnblogs.com/rooney/archive/2009/06/01/1493922.html

你是否碰到如下情况：
error: db4 error(2) from dbenv->open: No such file or directory
error: cannot open Packages index using db3 - No such file or directory (2)
error: cannot open Packages database in /var/lib/rpm

那就对了，执行下面操作就能解决问题
rm -rf /var/lib/rpm/__db*

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