ERROR OGG-01224 Address already in use.

PROBLEM:
mgr cannot start. "ERROR   OGG-01224  Address already in use and ERROR   OGG-01668  PROCESS ABENDING." appear in mgr.rpt

CAUSE:
Previous mgr process is still runing, which used port 7810 according to parameter file.

SOLUTION:

as root:
root> netstat -nap | grep 7810
tcp        0      0 :::7810                     :::*                        LISTEN      7590/./mgr
root> kill -9 7590

restart mgr process.

ERROR OGG-01668 Oracle GoldenGate Manager for Oracle, mgr.prm: PROCESS ABENDING.

PROBLEM:
mgr process can not start. "ERROR   OGG-01668  Oracle GoldenGate Manager for Oracle, mgr.prm:  PROCESS ABENDING" appears in ggserr.log. "ERROR   OGG-01091  Oracle GoldenGate Manager for Oracle, mgr.prm:  Unable to open file "/app/oracle/gg/bin/dirrpt/MGR.rpt" (error 2, No such file or directory)." appears in ggserr.log.

CAUSE:
subdirectory is not created.

SOLUTION:
create subdirectories.