Last Modified: Oct 28, 2019
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Known Affected Versions:
14.1.0, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 14.1.2, 15.0.0, 15.0.1
Opened: Apr 24, 2019
When BIG-IP system running under low memory situation, Out-Of-Memory killer more likely selects tmm to kill and release the resources.
Traffic disrupted while tmm restarts.
BIG-IP version 13.0.x or later installed and system running with low memory. AFM provisioned makes the tmm process more likely to be selected by the oom killer
Adjust OOM score of "tmm" process through oom_score_adj proc setting. echo "-500" > /proc/<pid_of_tmm>/oom_score_adj
OOM score for "tmm" process is adjusted such that OOM killer will not prioritize "tmm" during system low memory condition.