yum install valgrind.x86_64

Reference: https://cloudlinux.zendesk.com/hc/en-us/articles/115004075294-Fix-rpmdb-Thread-died-in-Berkeley-DB-library

[installadmin@dnafexpapp003 ~]$ yum install valgrind.x86_64
Loaded plugins: fastestmirror
You need to be root to perform this command.
[installadmin@dnafexpapp003 ~]$ sudo yum install valgrind.x86_64
error: rpmdb: BDB0113 Thread/process 14224/140306258626624 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
[installadmin@dnafexpapp003 ~]$


solution:
mkdir /var/lib/rpm/backup
cp -a /var/lib/rpm/__db* /var/lib/rpm/backup/
rm -f /var/lib/rpm/__db.[0-9][0-9]*
rpm --quiet -qa
rpm --rebuilddb
yum clean all