[testdb1@ip-testdb1~]$# yum install gcc Loaded plugins: amazon-id, rhui-lb, security Existing lock /var/run/yum.pid: another copy is running as pid 4447. Another app is currently holding the yum lock; waiting for it to exit... The other application is: yum Memory : 368 M RSS (933 MB VSZ) Started: Mon May 8 18:19:54 2017 - 11:45:55 ago State : Traced/Stopped, pid: 4447 Another app is currently holding the yum lock; waiting for it to exit... The other application is: yum Memory : 368 M RSS (933 MB VSZ) Started: Mon May 8 18:19:54 2017 - 11:45:57 ago State : Traced/Stopped, pid: 4447 Solution: Kill running yum process. [testdb1@ip-testdb1~]# ps aux | grep yum root 1546 0.0 0.1 103272 832 pts/1 S+ 06:07 0:00 grep yum root 4447 1.0 62.2 955100 376404 pts/1 T May08 7:32 /usr/bin/python /usr/bin/yum install kmod-oracleasm
[testdb1@ip-testdb1~]$# kill -9 4447 [testdb1@ip-testdb1~]$]# ps aux | grep yum root 1557 0.0 0.1 103272 832 pts/1 S+ 06:07 0:00 grep yum [1]+ Killed yum install kmod-oracleasm
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