Cassandra and hawkular-metrics pod continuously getting restarted after upgrading OpenShift

Issue

• Cassandra pod getting restarted at regular intervals

NAME                         READY     STATUS    RESTARTS   AGE
hawkular-cassandra-1-lpq9j   0/1       Running   176        21h
hawkular-metrics-jfxmw       0/1       Running   1007       14d
heapster-zj6xl               1/1       Running   0          3d

• Readiness probes for all the pods in openshift-infra namespace failing.
• Cassandra pod logs might show these error messages:

$ oc logs <cassandra-pod>
ERROR [MemtableFlushWriter:3] 2019-11-08 12:21:33,073 LogTransaction.java:262 - [/cassandra_data/data/hawkular_metrics/data_temp_2019110410-13869ff0fe4111e991c5dfe028fea12c/mc_txn_flush_4ce856a0-0222-11ea-b41b-b94758806e55.log]  was not completed, trying to abort it now
ERROR [MemtableFlushWriter:3] 2019-11-08 12:21:33,075 LogTransaction.java:265 - Failed to abort [/cassandra_data/data/hawkular_metrics/data_temp_2019110410-13869ff0fe4111e991c5dfe028fea12c/mc_txn_flush_4ce856a0-0222-11ea-b41b-b94758806e55.log] 
java.lang.RuntimeException: java.nio.file.AccessDeniedException: /cassandra_data/data/hawkular_metrics/data_temp_2019110410-13869ff0fe4111e991c5dfe028fea12c/mc_txn_flush_4ce856a0-0222-11ea-b41b-b94758806e55.log
Caused by: java.nio.file.AccessDeniedException: /cassandra_data/data/hawkular_metrics/data_temp_2019110410-13869ff0fe4111e991c5dfe028fea12c/mc_txn_flush_4ce856a0-0222-11ea-b41b-b94758806e55.log
    at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84) ~[na:1.8.0_222]
    at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[na:1.8.0_222]