Люди знающие, помогите, пожалуйста:
несколько раз в день возникает ошибка httpd: page allocation failure. На апаче висит 10.000 редкопосещаемых сайтов, по нагрузке справляется. А с памятью что-то не так. Сервер CentOS 32bit, ОЗУ 4GB.
/var/log/messages: Apr 29 08:42:01 ded kernel: [<c045e590>] __alloc_pages+0x2bb/0x2cf Apr 29 08:42:02 ded kernel: [<c04748f8>] cache_alloc_refill+0x275/0x48a Apr 29 08:42:02 ded kernel: [<c0474b75>] __kmalloc+0x68/0x72 Apr 29 08:42:02 ded kernel: [<c04914b1>] alloc_fd_array+0x14/0x22 Apr 29 08:42:02 ded kernel: [<c049161c>] expand_files+0xf6/0x300 Apr 29 08:42:02 ded kernel: [<c042452e>] dup_fd+0x142/0x2d4 Apr 29 08:42:02 ded kernel: [<c044d0ea>] audit_alloc+0x99/0x169 Apr 29 08:42:02 ded kernel: [<c04246fd>] copy_files+0x3d/0x54 Apr 29 08:42:02 ded kernel: [<c0424f94>] copy_process+0x4e9/0x127e Apr 29 08:42:02 ded kernel: [<c0436795>] alloc_pid+0x1d3/0x236 Apr 29 08:42:02 ded kernel: [<c0425f67>] do_fork+0x41/0x168 Apr 29 08:42:02 ded kernel: [<c040318b>] sys_clone+0x28/0x2d Apr 29 08:42:02 ded kernel: [<c0404f9b>] syscall_call+0x7/0xb Apr 29 08:42:02 ded kernel: ======================= Apr 29 08:42:02 ded kernel: Mem-info: Apr 29 08:42:02 ded kernel: DMA per-cpu: Apr 29 08:42:02 ded kernel: cpu 0 hot: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 0 cold: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 1 hot: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 1 cold: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 2 hot: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 2 cold: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 3 hot: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 3 cold: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 4 hot: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 4 cold: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 5 hot: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 5 cold: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 6 hot: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 6 cold: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 7 hot: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: cpu 7 cold: high 0, batch 1 used:0 Apr 29 08:42:02 ded kernel: DMA32 per-cpu: empty Apr 29 08:42:02 ded kernel: Normal per-cpu: Apr 29 08:42:02 ded kernel: cpu 0 hot: high 186, batch 31 used:73 Apr 29 08:42:02 ded kernel: cpu 0 cold: high 62, batch 15 used:51 Apr 29 08:42:02 ded kernel: cpu 1 hot: high 186, batch 31 used:21 Apr 29 08:42:02 ded kernel: cpu 1 cold: high 62, batch 15 used:57 Apr 29 08:42:02 ded kernel: cpu 2 hot: high 186, batch 31 used:2 Apr 29 08:42:02 ded kernel: cpu 2 cold: high 62, batch 15 used:50 Apr 29 08:42:02 ded kernel: cpu 3 hot: high 186, batch 31 used:20 Apr 29 08:42:02 ded kernel: cpu 3 cold: high 62, batch 15 used:0 Apr 29 08:42:02 ded kernel: cpu 4 hot: high 186, batch 31 used:18 Apr 29 08:42:02 ded kernel: cpu 4 cold: high 62, batch 15 used:54 Apr 29 08:42:02 ded kernel: cpu 5 hot: high 186, batch 31 used:4 Apr 29 08:42:02 ded kernel: cpu 5 cold: high 62, batch 15 used:61 Apr 29 08:42:02 ded kernel: cpu 6 hot: high 186, batch 31 used:11 Apr 29 08:42:02 ded kernel: cpu 6 cold: high 62, batch 15 used:7 Apr 29 08:42:02 ded kernel: cpu 7 hot: high 186, batch 31 used:10 Apr 29 08:42:02 ded kernel: cpu 7 cold: high 62, batch 15 used:53 Apr 29 08:42:02 ded kernel: HighMem per-cpu: Apr 29 08:42:02 ded kernel: cpu 0 hot: high 186, batch 31 used:24 Apr 29 08:42:02 ded kernel: cpu 0 cold: high 62, batch 15 used:0 Apr 29 08:42:02 ded kernel: cpu 1 hot: high 186, batch 31 used:13 Apr 29 08:42:02 ded kernel: cpu 1 cold: high 62, batch 15 used:5 Apr 29 08:42:02 ded kernel: cpu 2 hot: high 186, batch 31 used:18 Apr 29 08:42:02 ded kernel: cpu 2 cold: high 62, batch 15 used:7 Apr 29 08:42:02 ded kernel: cpu 3 hot: high 186, batch 31 used:9 Apr 29 08:42:02 ded kernel: cpu 3 cold: high 62, batch 15 used:3 Apr 29 08:42:02 ded kernel: cpu 4 hot: high 186, batch 31 used:12 Apr 29 08:42:02 ded kernel: cpu 4 cold: high 62, batch 15 used:10 Apr 29 08:42:02 ded kernel: cpu 5 hot: high 186, batch 31 used:19 Apr 29 08:42:02 ded kernel: cpu 5 cold: high 62, batch 15 used:9 Apr 29 08:42:02 ded kernel: cpu 6 hot: high 186, batch 31 used:30 Apr 29 08:42:02 ded kernel: cpu 6 cold: high 62, batch 15 used:8 Apr 29 08:42:02 ded kernel: cpu 7 hot: high 186, batch 31 used:15 Apr 29 08:42:02 ded kernel: cpu 7 cold: high 62, batch 15 used:11 Apr 29 08:42:02 ded kernel: Free pages: 2075632kB (1423252kB HighMem) Apr 29 08:42:02 ded kernel: Active:366655 inactive:90107 dirty:741 writeback:1 unstable:0 free:518908 slab:26921 mapped-file:4748 mapped-anon:232168 pagetables:28603 Apr 29 08:42:02 ded kernel: DMA free:6484kB min:68kB low:84kB high:100kB active:0kB inactive:0kB present:16384kB pages_scanned:0 all_unreclaimable? yes Apr 29 08:42:02 ded kernel: lowmem_reserve[]: 0 0 880 5104 Apr 29 08:42:02 ded kernel: DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no Apr 29 08:42:02 ded kernel: lowmem_reserve[]: 0 0 880 5104 Apr 29 08:42:02 ded kernel: Normal free:645896kB min:3756kB low:4692kB high:5632kB active:45616kB inactive:60012kB present:901120kB pages_scanned:0 all_unreclaimable? no Apr 29 08:42:02 ded kernel: lowmem_reserve[]: 0 0 0 33792 Apr 29 08:42:02 ded kernel: HighMem free:1423252kB min:512kB low:5020kB high:9532kB active:1421004kB inactive:300416kB present:4325376kB pages_scanned:0 all_unreclaimable? no Apr 29 08:42:02 ded kernel: lowmem_reserve[]: 0 0 0 0 Apr 29 08:42:02 ded kernel: DMA: 137*4kB 124*8kB 97*16kB 64*32kB 21*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 6484kB Apr 29 08:42:02 ded kernel: DMA32: empty Apr 29 08:42:02 ded kernel: Normal: 25682*4kB 22352*8kB 12660*16kB 4062*32kB 495*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 645896kB Apr 29 08:42:02 ded kernel: HighMem: 48581*4kB 77802*8kB 29093*16kB 4063*32kB 138*64kB 15*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1423252kB Apr 29 08:42:02 ded kernel: 242933 pagecache pages Apr 29 08:42:02 ded kernel: Swap cache: add 871329, delete 852203, find 66471967/66535621, race 0+73 Apr 29 08:42:02 ded kernel: Free swap = 3695056kB Apr 29 08:42:02 ded kernel: Total swap = 4192956kB Apr 29 08:42:02 ded kernel: Free swap: 3695056kB Apr 29 08:42:02 ded kernel: 1310720 pages of RAM Apr 29 08:42:02 ded kernel: 1081344 pages of HIGHMEM Apr 29 08:42:02 ded kernel: 276021 reserved pages Apr 29 08:42:02 ded kernel: 11033774 pages shared Apr 29 08:42:02 ded kernel: 19126 pages swap cached Apr 29 08:42:02 ded kernel: 741 pages dirty Apr 29 08:42:02 ded kernel: 1 pages writeback Apr 29 08:42:02 ded kernel: 4748 pages mapped Apr 29 08:42:02 ded kernel: 26921 pages slab Apr 29 08:42:02 ded kernel: 28603 pages pagetables
в httpd.conf прописал: <IfModule prefork.c> StartServers 8 MinSpareServers 20 MaxSpareServers 25 ServerLimit 100 MaxClients 100 MaxRequestsPerChild 500 </IfModule> при старте процессы апача съедают 500МБ и во время работы эти особо не растут: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1903 apache 15 0 541m 450m 4512 S 0.0 11.1 0:09.32 /usr/sbin/httpd 1902 apache 22 0 540m 449m 4296 S 0.0 11.1 0:16.19 /usr/sbin/httpd ....
