Linux Out-of-memory Killer
The OOM Killer is the Linux kernel's built in mechanism for protecting a machine from using up all memory.
Questions tagged [oom]
107 questions
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Xen 4.0.1 Dom0 draws too much memory by nothing apparent - ooms out when streched under 900 MB
Greetings,
I've setup a new ubuntu 10.10 server for xen 4.0.1, though it included kernel compilation (creating PVOPS 2.6.32 kernel) and all the stuff by their guide - (generally include xen and download all packages needed and make world + add sata…
Qiqi
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How to find memory consuming request in mongodb
There is a small(4 replicas) mongodb cluster(replicaset). Every node is 24GB ram with 8GB wiredtiger cache size.
Cluster is used by many (about 100) applications which do few hundred requests per seconds. Most of queries are optimized.
From time to…
undefine
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Why does OOM killer works although memory is enough?
On one of the worker nodes of the Kubernetes cluster, a situation occurs periodically (several times a day) when the OOM killer is triggered, killing the "manager" process
I assume it's because configuration of cgroups. How do I configure it in the…
VladF
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Why MongoDB occurs out of memory (OOM) every few days
My Server Info
AWS Ubuntu 18.04
MongoDB 4.2.17
4 Cores
16 GRAM
This server only running mongodb, and allocated 10G memory to mongodb
wiredTiger:
engineConfig:
cacheSizeGB: 10
But this machine has OOM every few days.
Sys Log:
Oct 19…
ikool
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systemd out of memory log entry systemd-user:session
I have problem finding out reason of 'Out of memory' systemd log entry.
Log for particular PID looks as follows - line 2:
Sep 05 09:24:32 myServer systemd[24454]: pam_unix(systemd-user:session): session opened for user myUser by (uid=0)
Sep 05…
atapidriver
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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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MariaDB memory much higher than innodb_buffer_pool_size
I have a backend server with 1G RAM for my HTTP server and my MariaDB.
I noticed the database keeps getting killed by OOM once or twice a day. Most of the time the OOM is triggered by the HTTP server, but not always.
I tried limiting…
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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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mariadb oom-killer on CentOS8 in EC2 t2.micro instance
I seem to be having memory problems in my t2.micro instance (1GB) running nginx, mariadb, php and WordPress.
I can see that mariadb.service is being killed regularly (I have used grep -e kill /var/log/messages sample output below). As you can see…
dtw
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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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1 answer
Daily Apt Upgrade causing oom-killer to kill my java server
My server has died several times in the middle of the night because of this. How much memory is apt-upgrade asking for? Is it being reasonable? I'm trying to decipher the logs here. Any help or advice appreciated!
Amazon EC2 server with 1GB of…
satnam
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2 answers
Why cannot use buff/cache?
It seems mysqld allocates too much memory as buff/cache:
free -m
total used free shared buff/cache available
Mem: 990 448 96 36 445 326
Swap: 511 …
William
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When the kernel says "Out of memory: Killed proces..." does it mean real memory or virtual memory?
Looking at journal -xe for the reason(s) a process is killed, the message comes up in red "Out of memory: Killed process..." but it doesn't say whether the limiting resource is virtual memory or is real memory.
Which does it mean and why doesn't it…
James Bowery
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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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Kubernetes Pod OOMKilled Issue
The scenario is we run some web sites based on an nginx image in kubernetes cluster. When we had our cluster setup with nodes of 2cores and 4GB RAM each. The pods had the following configurations, cpu: 40m and memory: 100MiB. Later, we upgraded our…
