logfile

LOG:  database system shutdown was interrupted; last known up at 2015-05-23 04:59:04 PDT
LOG:  WAL file is from different database system: WAL file database system identifier is 6152015994153359636, pg_control database system identifier is 6145459833174240233.
LOG:  invalid primary checkpoint record
LOG:  WAL file is from different database system: WAL file database system identifier is 6152015994153359636, pg_control database system identifier is 6145459833174240233.
LOG:  invalid secondary checkpoint record
PANIC:  could not locate a valid checkpoint record
LOG:  startup process (PID 733) was terminated by signal 6: Abort trap
LOG:  aborting startup due to startup process failure