Oracle вызывал oom-killer, даже когда RAM и SWAP достаточно свободны?
Не могли бы вы сказать мне, по какой причине этот процесс Oracle был убит? Похоже, много свободной RAM и много SWAP. Затем были убиты несколько других процессов оракула. Виртуальная машина имеет 16 ГБ vMem и 8 виртуальных ЦП. Но я публикую здесь первый процесс оракула, который был убит:
Mar 1 20:00:58 ******* kernel: oracle invoked oom-killer: gfp_mask=0x280da, order=0, oom_adj=0, oom_score_adj=0 Mar 1 20:00:58 ******* kernel: oracle cpuset=/ mems_allowed=0 Mar 1 20:00:58 ******* kernel: Pid: 2370, comm: oracle Not tainted 2.6.32-431.el6.x86_64 #1 Mar 1 20:00:58 ******* kernel: Call Trace: Mar 1 20:00:58 ******* kernel: [] ? cpuset_print_task_mems_allowed+0x91/0xb0 Mar 1 20:00:58 ******* kernel: [] ? dump_header+0x90/0x1b0 Mar 1 20:00:58 ******* kernel: [] ? security_real_capable_noaudit+0x3c/0x70 Mar 1 20:00:58 ******* kernel: [] ? oom_kill_process+0x82/0x2a0 Mar 1 20:00:58 ******* kernel: [] ? select_bad_process+0xe1/0x120 Mar 1 20:00:58 ******* kernel: [] ? out_of_memory+0x220/0x3c0 Mar 1 20:00:58 ******* kernel: [] ? __alloc_pages_nodemask+0x8ac/0x8d0 Mar 1 20:00:58 ******* kernel: [] ? alloc_pages_vma+0x9a/0x150 Mar 1 20:00:58 ******* kernel: [] ? handle_pte_fault+0x73d/0xb00 Mar 1 20:00:58 ******* kernel: [] ? free_pgtables+0xce/0x120 Mar 1 20:00:58 ******* kernel: [] ? unmap_region+0xcd/0x130 Mar 1 20:00:58 ******* kernel: [] ? vma_prio_tree_add+0x75/0xd0 Mar 1 20:00:58 ******* kernel: [] ? handle_mm_fault+0x22a/0x300 Mar 1 20:00:58 ******* kernel: [] ? __do_page_fault+0x138/0x480 Mar 1 20:00:58 ******* kernel: [] ? do_mmap_pgoff+0x335/0x380 Mar 1 20:00:58 ******* kernel: [] ? do_page_fault+0x3e/0xa0 Mar 1 20:00:58 ******* kernel: [] ? page_fault+0x25/0x30 Mar 1 20:00:58 ******* kernel: Mem-Info: Mar 1 20:00:58 ******* kernel: Node 0 DMA per-cpu: Mar 1 20:00:58 ******* kernel: CPU 0: hi: 0, btch: 1 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 1: hi: 0, btch: 1 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 2: hi: 0, btch: 1 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 3: hi: 0, btch: 1 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 4: hi: 0, btch: 1 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 5: hi: 0, btch: 1 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 6: hi: 0, btch: 1 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 7: hi: 0, btch: 1 usd: 0 Mar 1 20:00:58 ******* kernel: Node 0 DMA32 per-cpu: Mar 1 20:00:58 ******* kernel: CPU 0: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 1: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 2: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 3: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 4: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 5: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 6: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 7: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: Node 0 Normal per-cpu: Mar 1 20:00:58 ******* kernel: CPU 0: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 1: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 2: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 3: hi: 186, btch: 31 usd: 20 Mar 1 20:00:58 ******* kernel: CPU 4: hi: 186, btch: 31 usd: 32 Mar 1 20:00:58 ******* kernel: CPU 5: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: CPU 6: hi: 186, btch: 31 usd: 184 Mar 1 20:00:58 ******* kernel: CPU 7: hi: 186, btch: 31 usd: 0 Mar 1 20:00:58 ******* kernel: active_anon:2673615 inactive_anon:368657 isolated_anon:0 Mar 1 20:00:58 ******* kernel: active_file:3541 inactive_file:3962 isolated_file:32 Mar 1 20:00:58 ******* kernel: unevictable:0 dirty:3 writeback:2770 unstable:0 Mar 1 20:00:58 ******* kernel: free:33763 slab_reclaimable:16555 slab_unreclaimable:28221 Mar 1 20:00:58 ******* kernel: mapped:1517627 shmem:1730877 pagetables:906135 bounce:0 Mar 1 20:00:58 ******* kernel: Node 0 DMA free:15132kB min:60kB low:72kB high:88kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:14740kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes Mar 1 20:00:58 ******* kernel: lowmem_reserve[]: 0 3000 16130 16130 Mar 1 20:00:58 ******* kernel: Node 0 DMA32 free:64904kB min:12556kB low:15692kB high:18832kB active_anon:2064816kB inactive_anon:516452kB active_file:492kB inactive_file:188kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3072096kB mlocked:0kB dirty:0kB writeback:0kB mapped:2319432kB shmem:2352892kB slab_reclaimable:7420kB slab_unreclaimable:3620kB kernel_stack:832kB pagetables:24672kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:1 all_unreclaimable? no Mar 1 20:00:58 ******* kernel: lowmem_reserve[]: 0 0 13130 13130 Mar 1 20:00:58 ******* kernel: Node 0 Normal free:55016kB min:54964kB low:68704kB high:82444kB active_anon:8629644kB inactive_anon:958176kB active_file:13672kB inactive_file:15660kB unevictable:0kB isolated(anon):0kB isolated(file):128kB present:13445120kB mlocked:0kB dirty:12kB writeback:11080kB mapped:3751076kB shmem:4570616kB slab_reclaimable:58800kB slab_unreclaimable:109264kB kernel_stack:5360kB pagetables:3599868kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:160 all_unreclaimable? no Mar 1 20:00:58 ******* kernel: lowmem_reserve[]: 0 0 0 0 Mar 1 20:00:58 ******* kernel: Node 0 DMA: 3*4kB 2*8kB 2*16kB 3*32kB 2*64kB 2*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 3*4096kB = 15132kB Mar 1 20:00:58 ******* kernel: Node 0 DMA32: 1225*4kB 859*8kB 878*16kB 547*32kB 184*64kB 34*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 1*4096kB = 65596kB Mar 1 20:00:58 ******* kernel: Node 0 Normal: 9165*4kB 1804*8kB 46*16kB 2*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 55924kB Mar 1 20:00:58 ******* kernel: 1760824 total pagecache pages Mar 1 20:00:58 ******* kernel: 22460 pages in swap cache Mar 1 20:00:58 ******* kernel: Swap cache stats: add 6636857, delete 6614397, find 15635455/16141480 Mar 1 20:00:58 ******* kernel: Free swap = 33548340kB Mar 1 20:00:58 ******* kernel: Total swap = 36184056kB Mar 1 20:00:58 ******* kernel: 4194288 pages RAM Mar 1 20:00:58 ******* kernel: 111808 pages reserved Mar 1 20:00:58 ******* kernel: 59252583 pages shared Mar 1 20:00:58 ******* kernel: 2502605 pages non-shared Mar 1 20:00:58 ******* kernel: [ pid ] uid tgid total_vm rss cpu oom_adj oom_score_adj name Mar 1 20:00:58 ******* kernel: [ 612] 0 612 2769 42 2 -17 -1000 udevd Mar 1 20:00:58 ******* kernel: [ 1872] 0 1872 47365 204 7 0 0 vmtoolsd Mar 1 20:00:58 ******* kernel: [ 1980] 0 1980 23294 109 6 -17 -1000 auditd Mar 1 20:00:58 ******* kernel: [ 1996] 0 1996 62898 842 4 0 0 rsyslogd Mar 1 20:00:58 ******* kernel: [ 2025] 0 2025 2738 93 3 0 0 irqbalance Mar 1 20:00:58 ******* kernel: [ 2039] 32 2039 4744 68 4 0 0 rpcbind Mar 1 20:00:58 ******* kernel: [ 2071] 29 2071 5837 61 3 0 0 rpc.statd Mar 1 20:00:58 ******* kernel: [ 2092] 0 2092 5773 31 1 0 0 rpc.idmapd Mar 1 20:00:58 ******* kernel: [ 2211] 0 2211 39323 127 5 0 0 pbx_exchange Mar 1 20:00:58 ******* kernel: [ 2223] 0 2223 48106 158 5 0 0 winbindd Mar 1 20:00:58 ******* kernel: [ 2237] 0 2237 1020 48 4 0 0 acpid Mar 1 20:00:58 ******* kernel: [ 2323] 0 2323 49766 281 0 0 0 winbindd Mar 1 20:00:58 ******* kernel: [ 2540] 0 2540 26827 11 5 0 0 rpc.rquotad Mar 1 20:00:58 ******* kernel: [ 2544] 0 2544 5414 41 5 0 0 rpc.mountd Mar 1 20:00:58 ******* kernel: [ 2580] 0 2580 1570 23 0 0 0 mcelog Mar 1 20:00:58 ******* kernel: [ 2592] 0 2592 16651 78 5 -17 -1000 sshd Mar 1 20:00:58 ******* kernel: [ 2600] 0 2600 5545 105 3 0 0 xinetd Mar 1 20:00:58 ******* kernel: [ 2608] 38 2608 7147 132 5 0 0 ntpd Mar 1 20:00:58 ******* kernel: [ 2618] 498 2618 25741 57 2 0 0 uuidd Mar 1 20:00:58 ******* kernel: [ 2630] 0 2630 43170 139 3 0 0 vnetd Mar 1 20:00:58 ******* kernel: [ 2638] 0 2638 52398 158 2 0 0 bpcd Mar 1 20:00:58 ******* kernel: [ 2655] 0 2655 198335 478 4 0 0 nbdisco Mar 1 20:00:58 ******* kernel: [ 2676] 0 2676 76958 82 2 0 0 mtstrmd Mar 1 20:00:58 ******* kernel: [ 2707] 0 2707 22314 141 0 0 0 sendmail Mar 1 20:00:58 ******* kernel: [ 2716] 51 2716 19658 80 4 0 0 sendmail Mar 1 20:00:58 ******* kernel: [ 2734] 0 2734 200856 353 7 0 0 avagent.bin Mar 1 20:00:58 ******* kernel: [ 2747] 0 2747 44287 178 3 0 0 tuned Mar 1 20:00:58 ******* kernel: [ 2757] 0 2757 29333 103 6 0 0 crond Mar 1 20:00:58 ******* kernel: [ 2778] 0 2778 27431 167 7 0 0 saphostexec Mar 1 20:00:58 ******* kernel: [ 2805] 600 2805 545016 4031 5 0 0 sapstartsrv Mar 1 20:00:58 ******* kernel: [ 2885] 834 2885 100602 294 3 0 0 sapstartsrv Mar 1 20:00:58 ******* kernel: [ 2904] 0 2904 5385 31 6 0 0 atd Mar 1 20:00:58 ******* kernel: [ 2928] 0 2928 26005 69 5 0 0 rhsmcertd Mar 1 20:00:58 ******* kernel: [ 2935] 0 2935 8154 1110 0 0 0 saposcol Mar 1 20:00:58 ******* kernel: [ 3098] 834 3098 13538 50 3 0 0 sapstart Mar 1 20:00:58 ******* kernel: [ 3128] 834 3128 43278 119 5 0 0 jc.sapDAA_SMDA9 Mar 1 20:00:58 ******* kernel: [ 3144] 834 3144 1276839 57796 4 0 0 jstart Mar 1 20:00:58 ******* kernel: [ 3211] 703 3211 33752 378 5 0 0 perl Mar 1 20:00:58 ******* kernel: [ 3288] 703 3288 1181563 62355 0 0 0 java Mar 1 20:00:58 ******* kernel: [ 3497] 0 3497 1016 34 1 0 0 mingetty Mar 1 20:00:58 ******* kernel: [ 3499] 0 3499 1016 34 1 0 0 mingetty Mar 1 20:00:58 ******* kernel: [ 3502] 0 3502 1016 34 1 0 0 mingetty Mar 1 20:00:58 ******* kernel: [ 3504] 0 3504 1016 34 2 0 0 mingetty Mar 1 20:00:58 ******* kernel: [ 3506] 0 3506 1016 34 1 0 0 mingetty Mar 1 20:00:58 ******* kernel: [ 3508] 0 3508 1016 34 1 0 0 mingetty Mar 1 20:00:58 ******* kernel: [ 3515] 0 3515 3098 41 2 -17 -1000 udevd Mar 1 20:00:58 ******* kernel: [ 3516] 0 3516 3098 41 4 -17 -1000 udevd Mar 1 20:00:58 ******* kernel: [13764] 0 13764 48089 89 7 0 0 winbindd Mar 1 20:00:58 ******* kernel: [13765] 0 13765 48089 92 7 0 0 winbindd Mar 1 20:00:58 ******* kernel: [13873] 703 13873 2403434 6196 5 0 0 oracle Mar 1 20:00:58 ******* kernel: [13875] 703 13875 2402873 651 3 0 0 oracle Mar 1 20:00:58 ******* kernel: [13880] 703 13880 2402873 423 4 0 0 oracle Mar 1 20:00:58 ******* kernel: [13875] 703 13875 2402873 651 3 0 0 oracle Mar 1 20:00:58 ******* kernel: [13880] 703 13880 2402873 423 4 0 0 oracle .. Note: Removed bunch of oracle processes here so as to limit the character length for the posting here. Total of 296 oracle process running. .. Mar 1 20:00:59 ******* kernel: [18644] 0 18644 44207 371 1 0 0 bpclntcmd Mar 1 20:00:59 ******* kernel: [18647] 703 18647 57442 240 3 0 0 oracle Mar 1 20:00:59 ******* kernel: [18656] 703 18656 57442 185 6 0 0 oracle Mar 1 20:00:59 ******* kernel: [18657] 54329 18657 9279 196 1 0 0 nrpe Mar 1 20:00:59 ******* kernel: [18660] 54329 18660 9314 255 2 0 0 nrpe Mar 1 20:00:59 ******* kernel: [18662] 0 18662 39263 289 5 0 0 crond Mar 1 20:00:59 ******* kernel: [18663] 0 18663 5745 341 1 0 0 saposcol Mar 1 20:00:59 ******* kernel: [18664] 54329 18664 9315 146 3 0 0 nrpe Mar 1 20:00:59 ******* kernel: [18665] 54329 18665 5730 76 0 0 0 check_open_file Mar 1 20:00:59 ******* kernel: [18666] 54329 18666 6611 191 4 0 0 xinetd Mar 1 20:00:59 ******* kernel: [18667] 0 18667 8389 183 1 0 0 sapcimb Mar 1 20:00:59 ******* kernel: [18669] 0 18669 6610 171 0 0 0 xinetd Mar 1 20:00:59 ******* kernel: [18670] 0 18670 6610 171 0 0 0 xinetd Mar 1 20:00:59 ******* kernel: [18677] 0 18677 6610 177 5 0 0 xinetd Mar 1 20:00:59 ******* kernel: [18678] 703 18678 29497 275 4 0 0 perl Mar 1 20:00:59 ******* kernel: [18682] 703 18682 29497 252 7 0 0 perl Mar 1 20:00:59 ******* kernel: [18683] 703 18683 29497 231 0 0 0 perl Mar 1 20:00:59 ******* kernel: [18687] 0 18687 2620 92 1 0 0 .SAPOSCOL_00000 Mar 1 20:00:59 ******* kernel: [18688] 0 18688 6610 186 5 0 0 xinetd Mar 1 20:00:59 ******* kernel: [18689] 0 18689 6610 189 2 0 0 xinetd Mar 1 20:00:59 ******* kernel: [18690] 0 18690 6610 191 3 0 0 xinetd Mar 1 20:00:59 ******* kernel: [18691] 0 18691 6610 194 2 0 0 xinetd Mar 1 20:00:59 ******* kernel: Out of memory: Kill process 13900 (oracle) score 77 or sacrifice child Mar 1 20:00:59 ******* kernel: Killed process 13900, UID 703, (oracle) total-vm:9622308kB, anon-rss:5180kB, file-rss:4028040kB
Сверху, я думаю, что эти строки говорят, что у меня много оперативной памяти и свопинга. правильно?:
Node 0 DMA free:15132kB Node 0 DMA32 free:64904kB Node 0 Normal free:55016kB Free swap = 33548340kB Total swap = 36184056kB
Хотите знать, что означает "all_unreclaimable? yes" для DMA узла 0 и "all_unreclaimable? no" Node 0 DMA31 и Node 0 Normal!
Кроме того, вот информация, которая может дать дополнительную информацию о настройках сервера:
$sudo sysctl -p net.ipv4.ip_forward = 0 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.default.accept_source_route = 0 kernel.sysrq = 0 kernel.core_uses_pid = 1 net.ipv4.tcp_syncookies = 1 error: "net.bridge.bridge-nf-call-ip6tables" is an unknown key error: "net.bridge.bridge-nf-call-iptables" is an unknown key error: "net.bridge.bridge-nf-call-arptables" is an unknown key kernel.msgmnb = 65536 kernel.msgmax = 65536 kernel.shmmax = 68719476736 kernel.msgmni = 1024 kernel.sem = 1250 256000 100 8192 vm.max_map_count = 1000000 kernel.shmall = 1152921504606846720 fs.file-max = 19801952 net.core.rmem_default = 1048576 net.core.wmem_default = 262144 net.core.rmem_max = 4194304 net.core.wmem_max = 1048576 fs.aio-max-nr = 1048576 net.ipv4.ip_local_port_range = 9000 65500 vm.swappiness = 0 vm.dirty_background_ratio = 3 vm.dirty_ratio = 15 vm.dirty_expire_centisecs = 500 vm.dirty_writeback_centisecs = 100 kernel.shmmni = 4096
2
задан Community
10 March 2016 в 20:55
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1 ответ
У вас вообще мало свободной памяти.
Во-первых, vm.swappiness = 0 Сделайте это, только если вы точно уверены, что у вас достаточно памяти. Установка младшего значения в 10 или около того может предотвратить ситуацию с нехваткой памяти. И на самом деле вы будете использовать пространство для пейджинга.
Из краткого описания вершины 0, ваши 16 Гб - это примерно четверть страницы таблиц, четверть общей памяти, половина анонимной памяти программ, и несколько различных коэффициентов и концов. Обратите внимание, что легкодоступная файловая память, плюс свободная, составляет всего десятки мегабайт, не так уж и много. Она не сможет дать вам еще один гигабайт или около того общей памяти.
Таблицы страниц пожирают вас заживо. Возможно, у вас не включены огромные страницы, что Oracle рекомендует для баз данных, и Red Hat тоже.
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