linux查询进程被kill的日志 oom killer

OOM Killed

Linux内核有个机制叫OOM killer(Out Of Memory killer)，该机制会监控那些占用内存过大，尤其是瞬间占用内存很快的进程，然后防止内存耗尽而自动把该进程杀掉,内核检测到系统内存不足

log

"Out of memory"   /var/log/messages
"Killed process"

#filter logs
egrep -i -r 'out of memory' /var/log/messages   //-i ignore case   -r 逆序
egrep -i -r 'out of memory' /var/log/

egrep -i -r -v "level=debug" /var/log/messages