32336 - Half Open Socket Limit

Alarm Group:
PLAT
Description:
This alarm indicates that the number of half open TCP sockets has reached the major threshold. This problem is caused by a remote system failing to complete the TCP 3-way handshake.
Severity:
Major
Instance:
May include AlarmLocation, AlarmId, AlarmState, AlarmSeverity, and bindVarNamesValueStr
HA Score:
Normal
Auto Clear Seconds:
0 (zero)
OID:
tpdHalfOpenSockLimit
Alarm ID:
TKSPLATMA37

Recovery:

  1. Run syscheck in verbose mode.
  2. Determine what process and address reports a state of SYN_RECV and collect data:
    • netstat -nap.
  3. It is recommended to contact My Oracle Support (MOS) and provide the system health check output and collected data.