Add multiple messages

[pgyogesh]

• Could not locate the leader master:
• the database system is shutting down
• The follower will never be able to catch up
• Transaction aborted

psql:/tmp/abtmp_u273259/util-152645-165937-123286.cmds:2: ERROR:  Operation expired: Heartbeat: Transaction a803320d-eff0-4652-93aa-8f3ccbf5be82 expired or aborted by a conflict: 40001: . Errors from tablet servers: [Operation expired (yb/tablet/transaction_coordinator.cc:1245): Heartbeat: Transaction a803320d-eff0-4652-93aa-8f3ccbf5be82 expired or aborted by a conflict: 40001 (pgsql error 40001) (transaction error 1)]

• cannot be used as the first segment to start replay
• Resource unavailable
• Write failed: Operation failed