Out of Memory (OOM)

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wikipedia:Out of memory

EarlyOOM

OOM in Docker

• Docker: --oom-kill-disable=false To enable or disable OOM Killer for the container.

Use docker inspect CONTANINER_NAME | grep OOM to show options. For example:

docker inspect grafana | grep -i OOM
           "OOMKilled": false,
           "OomScoreAdj": 0,
           "OomKillDisable": false,

Kubernetes

• Pod The node had condition: [MemoryPressure].
• kubectl describe nodes | grep MemoryPressure

OOM Linux kernel logs

Jan 26 04:40:29 SERVER_NAME kernel: runc:[2:INIT] invoked oom-killer: gfp_mask=0x14000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=0

Jan 26 04:40:29 SERVER_NAME kernel: oom_reaper: reaped process 22572 (java), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB

Related terms

• Out of space
• /proc/sys/vm/panic_on_oom
• yarn: Error Command failed with exit code 137
• systemd-oomd

See also

• Memory: memory pages, RAM, virsh Memory Commands, OOM, meminfo, vmstat, NAND, DDR, lsmem, /dev/shm, /proc/meminfo, sar -r, IOMMU, pmem, Memory management, Garbage collector, THP, Linux Huge Page TLB
• OOM, EarlyOOM, OOM Killer, MemoryPressure (K8s), systemd-oomd, OOMKilled, oom-killer, memcpy, sar -r, Exit code: 137, Killed process
• ENOMEM