oom-killer Out-Of-Memory killer in the Linux kernel
A part of the Linux memory management that will sacrifice one or more processes in order to free up memory for the system when all else fails.
Questions tagged [oom-killer]
42 questions
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Kernel killing processes with memory available
We have a CentOS5.8 server with 64Gb RAM running normally around 700Mb RAM usage. When I try to do a tar -czf into about a 22Gb archive, the pagecache climbs up to about 22Gb, then the kernel starts killing processes. Eventually, the server becomes…
KennyD
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OOM Killer not triggering?
I'm working in an environment which has just been upgraded to Amazon Linux 2015.03 from Debian 6, quite a big jump.
On the new platform a server instance has locked up a few times due to running out of memory. This is due to a rogue apache process…
yoshiwaan
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Linux server loses network connectivity after an OOM event
We have a server runnnig Linux 5.15 and we've had multiple verified situations where a process is killed by OOM and that leaves the whole system inaccessible on the network, both for inbound and outbound traffic. This is a recent syslog trail for…
Délisson Junio
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Omm killer killed my python3 process when there was free memory
I am working on webserver on a linux embedded board without swap memory. Sometimes my webserver crashed when there was avaliable memory.
I set those configurations to prevent this but it didn't…
Selçuk Gök
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Implications of CPU limit on a docker run Java (tomcat) application?
I have had an ongoing problem running a Tomcat java web application in a docker container (which I refer to as a 'task' in this post) hosted in an ECS (elastic container service) on AWS.
We notice that the task climbs to 97% CPU usage (using the AWS…
RebRy
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Out of Memory Mismatch compared to what system rerports
Oct 25 07:41:32 KVM-BOX kernel: memory: usage 255216608kB, limit 255216640kB, failcnt 28058
[root@KVM-BOX ~]# free -hm
total used free shared buff/cache available
Mem: 282G 203G 78G …
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RHEL 8. linux OOM killer invoked to kill postgres process
Database is going to recovery mode whenever the OOM killer is invoked on the postgres process.
/var/log/messages output with respect to the…
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How do I track down a mysql memory issue on a server running a single WordPress site?
I'm having a weird issue. A few times a week, a website I'm running on Amazon Lightsail comes to a crashing halt and becomes IO bound (I can't usually use ssh when this happens) and the server runs out of memory. It's a lightly trafficked site with…
StevieD
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Monitoring apache workers that are being terminated by oomkiller (kubernetes)
I have a docker container based on php:7.2-apache-stretch running in kubernetes/rancher. The current k8s memory limit is excessively low, so users get errors and truncated pages when worker processes get oomkill'd. Since the httpd parent process…
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Slab SReclaimable memory can not be recycled?
CentOS Linux release 7.2.1511 (Core)
Linux version 3.10.0-514.26.2.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC) ) #1 SMP TueJul 4 15:04:05 UTC 2017
/proc/meminfo:
MemTotal: 16267428…
nuaa_tiger
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Kill the most memory-hungry process when memory gets low
Sometimes my Linux desktop, laptop, or server run out of RAM because the experimental software I work with occasionally tries to use more RAM than I have available.
When this happens, the system and console hangs for several minutes while Linux…
Vortico
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Is there a way for Apache to control how much memory it reserves?
Apache seems to have no control over how much memory it reserves. In MPM prefork you control the maximum number of processes you want to allow, but whatever number you use there, there is always a risk that existing processes will require more…
jacmkno
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