Oracle Linux: Troubleshoot Oracle Linux Server Unplanned Reboot/Restart Problems
(Doc ID 2289424.1)
Last updated on OCTOBER 13, 2022
Applies to:Linux OS - Version Oracle Linux 4.4 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux server gets unplanned reboot and one need to find out the cause. Normally, one will check the system log file (/var/log/messages) to identify if there is any presented clue before the reboot.
However, in case of kernel crash, cluster software eviction or even a Hardware failure, the system log may not have chance to record the fatal error messages.
This note provide a general guide on how one can validate cause of reboot of linux nodes in such situation.
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