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Memory usage constantly increases on Security Gateway running on Gaia OS and SecurePlatform OS Technical Level
Symptoms
  • Output of 'fw ctl pstat' command on Security Gateway shows that memory consumption constantly increases.

  • Security Gateway machine runs out of memory.

  • /var/log/messages files repeatedly show that Out-of-Memory (OOM) mechanism is invoked by Linux kernel:
    Daemon_Name invoked oom-killer

  • /var/log/messages files repeatedly show various issue with memory allocation:
    nmpd[PID]: Error allocating more space for arpcache.

Cause

There are scenarios, when the current FireWall memory allocation limit does not stop the FireWall from allocating additional memory on time - for example, during resiliency tests, and concurrent connections tests on traffic from IP range of Class B to IP range of Class B.


Solution
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