Bug ID 733585: Merged can use %100 of CPU if all stats snapshot files are in the future

Last Modified: May 14, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4

Fixed In:
14.1.0, 13.1.1.2

Opened: Jul 11, 2018
Severity: 3-Major

Symptoms

Merged uses %100 of CPU if it cannot remove the oldest snapshot file, due to all snapshot files having timestamps in the future.

Impact

Merged using %100 of the CPU.

Conditions

All stats snapshot file having timestamps in the future, release has the fix for issue 721740, but not this issue.

Workaround

Remove snapshot stats files that have timestamps in the future and restart merged.

Fix Information

Correctly exit cleanup logic when all stats snapshot files have timestamps in the future.

Behavior Change