Which process was killed by OOM killer?
The oracle process was killed by the OOM killer because of an out-of-memory condition. The capital K in Killed indicates that the process was killed with a -9 signal, and this is usually a good sign that the OOM killer might be the culprit.
How do I check my OOM killer log?
4 Answers. You can use “egrep -i -r ‘killed process’ /var/log/” to search it also in other places.
What’s happening when the Linux kernel is starting the OOM Killer?
The “OOM Killer” or “Out of Memory Killer” is a process that the Linux kernel employs when the system is critically low on memory. When a process starts it requests a block of memory from the kernel. This initial request is usually a large request that the process will not immediately or indeed ever use all of.
Why do processes have to be killed in Linux?
However, once processes start using this memory, Linux might realize that it has been too generous in allocating memory it doesn’t have, and will have to kill off a process to free some up. The process to be killed is based on a score taking into account runtime (long-running processes are safer), memory usage…
How to configure the Linux out of memory killer?
Configuring the OOM Killer The OOM killer on Linux has several configuration options that allow developers some choice as to the behavior the system will exhibit when it is faced with an out-of-memory condition. These settings and choices vary depending on the environment and applications that the system has configured on it.
Why was the Oracle Process killed by the OOM killer?
The oracle process was killed by the OOM killer because of an out-of-memory condition. The capital K in Killed indicates that the process was killed with a -9 signal, and this is usually a good sign that the OOM killer might be the culprit.
How to find out why process was killed on server?
The kernel log should show OOM killer actions, so use the “dmesg” command to see what happened, e.g. You will see a OOM killer messages, something like the following: However, this message may have been cleared from the kernel log, so one may need to inspect the kernel logs /var/log/kern.log*