Oom导致进程消失
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java哥反映有个进程老是不见了 [root@prodo-java03 log]# cat messages | grep oom Sep 20 05:32:10 prod-hello-java03 kernel: java invoked oom-killer: gfp_mask=0x201da, order=0, oom_score_adj=0 Sep 20 05:32:10 prod-hello-java03 kernel: [<ffffffffbd1ba4e4>] oom_kill_process+0x254/0x3d0 Sep 20 05:32:10 prod-hello-java03 kernel: [<ffffffffbd1b9f8d>] ? oom_unkillable_task+0xcd/0x120 Sep 20 05:32:10 prod-hello-java03 kernel: [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name Sep 24 00:01:22 prod-hello-java03 kernel: tuned invoked oom-killer: gfp_mask=0x201da, order=0, oom_score_adj=0 Sep 24 00:01:22 prod-hello-java03 kernel: [<ffffffffbd1ba4e4>] oom_kill_process+0x254/0x3d0 Sep 24 00:01:22 prod-hello-java03 kernel: [<ffffffffbd1b9f8d>] ? oom_unkillable_task+0xcd/0x120 Sep 24 00:01:22 prod-hello-java03 kernel: [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name Sep 24 00:01:22 prod-hello-java03 kernel: java invoked oom-killer: gfp_mask=0x201da, order=0, oom_score_adj=0 Sep 24 00:01:22 prod-hello-java03 kernel: [<ffffffffbd1ba4e4>] oom_kill_process+0x254/0x3d0 Sep 24 00:01:22 prod-hello-java03 kernel: [<ffffffffbd1b9f8d>] ? oom_unkillable_task+0xcd/0x120 Sep 24 00:01:22 prod-hello-java03 kernel: [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name 可见是 java Sep 24 00:01:22 prod-hello-java03 kernel: Out of memory: Kill process 46473 (java) score 250 or sacrifice child Sep 24 00:01:22 prod-hello-java03 kernel: Killed process 46473 (java) total-vm:5333504kB, anon-rss:2000260kB, file-rss:0kB, shmem-rss:0kB Sep 24 00:01:22 prod-hello-java03 kernel: java invoked oom-killer: gfp_mask=0x201da, order=0, oom_score_adj=0 Sep 24 00:01:22 prod-hello-java03 kernel: java cpuset=/ mems_allowed=0 Sep 24 00:01:22 prod-hello-java03 kernel: CPU: 1 PID: 54533 Comm: java Kdump: loaded Not tainted 3.10.0-957.1.3.el7.x86_64 #1 Sep 24 00:01:22 prod-hello-java03 kernel: Hardware name: Xen HVM domU, BIOS 4.2.amazon 08/24/2006 Sep 24 00:01:22 prod-hello-java03 kernel: Call Trace:
