在beta环境中,俩个项目经常性的崩溃。PS查看进程,JAVA进程消失。
先加Dump、ErrorFile查看,再次发生时,俩个日志均未输出。
尝试复现,有时发生,有时正常,很不规律。
在这过程中,top查看java进程,发现发生时,JAVA的内存会从50%一直飙升到95%,然后JAVA进程就消失了。
查看linux日志,/var/log/message 发现这么一段日志。
Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: master invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: master cpuset=/ mems_allowed=0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Pid: 1287, comm: master Not tainted 2.6.32-358.23.2.el6.x86_64 #1 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: active_anon:338189 inactive_anon:123825 isolated_anon:0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: active_file:4595 inactive_file:15377 isolated_file:0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: unevictable:0 dirty:16077 writeback:0 unstable:0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: free:13246 slab_reclaimable:2669 slab_unreclaimable:6168 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: mapped:3376 shmem:0 pagetables:1888 bounce:0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Node 0 DMA free:8316kB min:332kB low:412kB high:496kB active_anon:748kB inactive_anon:6672kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15348kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:4kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:32 all_unreclaimable? no Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: lowmem_reserve[]: 0 2004 2004 2004 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Node 0 DMA32 free:44668kB min:44720kB low:55900kB high:67080kB active_anon:1352008kB inactive_anon:488628kB active_file:18380kB inactive_file:61508kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:2052308kB mlocked:0kB dirty:64308kB writeback:0kB mapped:13504kB shmem:0kB slab_reclaimable:10672kB slab_unreclaimable:24672kB kernel_stack:3352kB pagetables:7552kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:1559392 all_unreclaimable? no Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: lowmem_reserve[]: 0 0 0 0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Node 0 DMA: 3*4kB 2*8kB 2*16kB 2*32kB 12*64kB 6*128kB 8*256kB 1*512kB 2*1024kB 1*2048kB 0*4096kB = 8316kB Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Node 0 DMA32: 813*4kB 465*8kB 308*16kB 216*32kB 132*64kB 52*128kB 12*256kB 11*512kB 2*1024kB 0*2048kB 0*4096kB = 44668kB Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 34657 total pagecache pages Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 14553 pages in swap cache Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Swap cache stats: add 659065, delete 644512, find 159998/176201 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Free swap = 4091960kB Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Total swap = 4194296kB Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 524284 pages RAM Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 10683 pages reserved Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 22147 pages shared Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 475274 pages non-shared Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Out of memory: Kill process 6728 (java) score 286 or sacrifice child Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Killed process 6728, UID 40001, (java) total-vm:5041844kB, anon-rss:1773172kB, file-rss:11236kB Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: rsyslogd invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: rsyslogd cpuset=/ mems_allowed=0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Pid: 1158, comm: rsyslogd Not tainted 2.6.32-358.23.2.el6.x86_64 #1 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: active_anon:338189 inactive_anon:123825 isolated_anon:0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: active_file:4595 inactive_file:15407 isolated_file:0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: unevictable:0 dirty:16077 writeback:0 unstable:0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: free:13246 slab_reclaimable:2669 slab_unreclaimable:6168 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: mapped:3376 shmem:0 pagetables:1888 bounce:0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Node 0 DMA free:8316kB min:332kB low:412kB high:496kB active_anon:748kB inactive_anon:6672kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15348kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:4kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:32 all_unreclaimable? no Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: lowmem_reserve[]: 0 2004 2004 2004 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Node 0 DMA32 free:44668kB min:44720kB low:55900kB high:67080kB active_anon:1352008kB inactive_anon:488628kB active_file:18380kB inactive_file:61504kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:2052308kB mlocked:0kB dirty:64308kB writeback:0kB mapped:13504kB shmem:0kB slab_reclaimable:10672kB slab_unreclaimable:24672kB kernel_stack:3352kB pagetables:7552kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:2114272 all_unreclaimable? no Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: lowmem_reserve[]: 0 0 0 0 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Node 0 DMA: 3*4kB 2*8kB 2*16kB 2*32kB 12*64kB 6*128kB 8*256kB 1*512kB 2*1024kB 1*2048kB 0*4096kB = 8316kB Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Node 0 DMA32: 813*4kB 465*8kB 308*16kB 216*32kB 132*64kB 52*128kB 12*256kB 11*512kB 2*1024kB 0*2048kB 0*4096kB = 44668kB Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 34657 total pagecache pages Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 14553 pages in swap cache Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Swap cache stats: add 659065, delete 644512, find 159998/176201 Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Free swap = 4091960kB Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: Total swap = 4194296kB Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 524284 pages RAM Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 10683 pages reserved Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 22179 pages shared Mar 21 10:53:33 l-noahs687ktdv1.auto.beta.cn0 kernel: 475274 pages non-shared