# yum clean allrpmdb: Thread/process 1319/139897616111360 failed: Thread died in Berkeley DB libraryerror: db3 error(-30974) from dbenv->failchk: DB_RUNRECOVERY: Fatal error, run database recoveryerror: cannot open Packages index using db3 - (-30974)error: cannot open Packages database in /var/lib/rpmCRITICAL:yum.main:Error: rpmdb open failed # rpm --rebuilddbrpmdb: Thread/process 1319/139897616..