help me please with my apache problem. I got an droplet at DigitalOcean with 512mb of RAM (Debian). There are 3 sites on MODX CMS (works on php). Today morning as i think system discovered an out of memory problem and started to kill processes (There was about 43 of apache procesess). It killed mysqld and started kills of apache2 one by one. Can you please point me which config i have to tune? Tuning-primer.sh for mysql tells that there is no problems with memory allocation.
Here is my my.cnf:
key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size = 8
myisam-recover = BACKUP
max_connections = 70
max_heap_table_size = 25M
tmp_table_size = 25M
query_cache_limit = 1M
query_cache_size = 25M
[mysqldump]
quick quote-names
max_allowed_packet = 16M
[isamchk]
key_buffer = 16M
Here the logs:
Dec 10 06:41:27 cloud kernel: [1711384.052842] apache2 invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
Dec 10 06:41:27 cloud kernel: [1711384.053081] apache2 cpuset=/ mems_allowed=0
Dec 10 06:41:27 cloud kernel: [1711384.053177] Pid: 21594, comm: apache2 Not tainted 3.2.0-4-amd64 #1 Debian 3.2.41-2+deb7u2
Dec 10 06:41:27 cloud kernel: [1711384.053362] Call Trace:
Dec 10 06:41:27 cloud kernel: [1711384.053453] [<ffffffff810b6ac2>] ? dump_header+0x78/0x1bd
Dec 10 06:41:27 cloud kernel: [1711384.053580] [<ffffffff81163cae>] ? security_real_capable_noaudit+0x40/0x4f
Dec 10 06:41:27 cloud kernel: [1711384.053727] [<ffffffff810b6e8b>] ? oom_kill_process+0x49/0x271
Dec 10 06:41:27 cloud kernel: [1711384.053864] [<ffffffff810b7586>] ? out_of_memory+0x2ea/0x337
Dec 10 06:41:27 cloud kernel: [1711384.054043] [<ffffffff810bb214>] ? __alloc_pages_nodemask+0x629/0x7aa
Dec 10 06:41:27 cloud kernel: [1711384.054194] [<ffffffff810e470a>] ? alloc_pages_current+0xc7/0xe4
Dec 10 06:41:27 cloud kernel: [1711384.054326] [<ffffffff810b61c7>] ? filemap_fault+0x24f/0x33e
Dec 10 06:41:27 cloud kernel: [1711384.054454] [<ffffffff810ce344>] ? __do_fault+0xc8/0x3ac
Dec 10 06:41:27 cloud kernel: [1711384.054572] [<ffffffff810d08fb>] ? handle_pte_fault+0x298/0x79f
Dec 10 06:41:27 cloud kernel: [1711384.054700] [<ffffffff810cde99>] ? pte_offset_kernel+0x16/0x35
Dec 10 06:41:27 cloud kernel: [1711384.054840] [<ffffffff813509bd>] ? do_page_fault+0x312/0x337
Dec 10 06:41:27 cloud kernel: [1711384.054965] [<ffffffff810d5ce0>] ? mmap_region+0x353/0x44a
Dec 10 06:41:27 cloud kernel: [1711384.055086] [<ffffffff8134dfe5>] ? async_page_fault+0x25/0x30
Dec 10 06:41:27 cloud kernel: [1711384.055210] Mem-Info:
Dec 10 06:41:27 cloud kernel: [1711384.055265] Node 0 DMA per-cpu:
Dec 10 06:41:27 cloud kernel: [1711384.055346] CPU 0: hi: 0, btch: 1 usd: 0
Dec 10 06:41:27 cloud kernel: [1711384.055591] Node 0 DMA32 per-cpu:
Dec 10 06:41:27 cloud kernel: [1711384.055811] CPU 0: hi: 186, btch: 31 usd: 0
Dec 10 06:41:27 cloud kernel: [1711384.056074] active_anon:113121 inactive_anon:458 isolated_anon:0
Dec 10 06:41:27 cloud kernel: [1711384.056075] active_file:92 inactive_file:104 isolated_file:45
Dec 10 06:41:27 cloud kernel: [1711384.056076] unevictable:0 dirty:0 writeback:1 unstable:0
Dec 10 06:41:27 cloud kernel: [1711384.056077] free:1210 slab_reclaimable:1522 slab_unreclaimable:2999
Dec 10 06:41:27 cloud kernel: [1711384.056078] mapped:419 shmem:374 pagetables:5928 bounce:0
Dec 10 06:41:27 cloud kernel: [1711384.057383] Node 0 DMA free:2048kB min:84kB low:104kB high:124kB active_anon:13372kB inactive_anon:8kB active_file:0kB inactive_file:24kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15680kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:44kB slab_unreclaimable:136kB kernel_stack:120kB pagetables:96kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:902 all_unreclaimable? yes
Dec 10 06:41:27 cloud kernel: [1711384.059096] lowmem_reserve[]: 0 489 489 489
Dec 10 06:41:27 cloud kernel: [1711384.059359] Node 0 DMA32 free:2792kB min:2784kB low:3480kB high:4176kB active_anon:439112kB inactive_anon:1824kB active_file:368kB inactive_file:392kB unevictable:0kB isolated(anon):0kB isolated(file):180kB present:500948kB mlocked:0kB dirty:0kB writeback:4kB mapped:1676kB shmem:1496kB slab_reclaimable:6044kB slab_unreclaimable:11860kB kernel_stack:1320kB pagetables:23616kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:59064 all_unreclaimable? yes
Dec 10 06:41:27 cloud kernel: [1711384.065944] lowmem_reserve[]: 0 0 0 0
Dec 10 06:41:27 cloud kernel: [1711384.066199] Node 0 DMA: 12*4kB 0*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 2048kB
Dec 10 06:41:27 cloud kernel: [1711384.066781] Node 0 DMA32: 676*4kB 14*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2816kB
Dec 10 06:41:27 cloud kernel: [1711384.067365] 626 total pagecache pages
Dec 10 06:41:27 cloud kernel: [1711384.067585] 0 pages in swap cache
Dec 10 06:41:27 cloud kernel: [1711384.067797] Swap cache stats: add 0, delete 0, find 0/0
Dec 10 06:41:27 cloud kernel: [1711384.068060] Free swap = 0kB
Dec 10 06:41:27 cloud kernel: [1711384.068271] Total swap = 0kB
Dec 10 06:41:27 cloud kernel: [1711384.069956] 131053 pages RAM
Dec 10 06:41:27 cloud kernel: [1711384.070168] 3819 pages reserved
Dec 10 06:41:27 cloud kernel: [1711384.070379] 77878 pages shared
Dec 10 06:41:27 cloud kernel: [1711384.070682] 122871 pages non-shared
Dec 10 06:41:27 cloud kernel: [1711384.070899] [ pid ] uid tgid total_vm rss cpu oom_adj oom_score_adj name
Dec 10 06:41:27 cloud kernel: [1711384.071343] [ 311] 0 311 5355 157 0 -17 -1000 udevd
Dec 10 06:41:27 cloud kernel: [1711384.071782] [ 449] 0 449 5330 139 0 -17 -1000 udevd
Dec 10 06:41:27 cloud kernel: [1711384.072250] [ 450] 0 450 5361 156 0 -17 -1000 udevd
Dec 10 06:41:27 cloud kernel: [1711384.072695] [ 1866] 0 1866 13514 431 0 0 0 rsyslogd
Dec 10 06:41:27 cloud kernel: [1711384.073146] [ 1918] 0 1918 1028 35 0 0 0 acpid
Dec 10 06:41:27 cloud kernel: [1711384.073593] [ 1973] 0 1973 70397 2566 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.074044] [ 2000] 0 2000 4167 38 0 0 0 atd
Dec 10 06:41:27 cloud kernel: [1711384.074483] [ 2048] 0 2048 5101 63 0 0 0 cron
Dec 10 06:41:27 cloud kernel: [1711384.074921] [ 2078] 102 2078 7450 85 0 0 0 dbus-daemon
Dec 10 06:41:27 cloud kernel: [1711384.075370] [ 2487] 0 2487 12462 153 0 -17 -1000 sshd
Dec 10 06:41:27 cloud kernel: [1711384.075805] [ 2857] 101 2857 11182 108 0 0 0 exim4
Dec 10 06:41:27 cloud kernel: [1711384.076262] [ 2886] 0 2886 4063 39 0 0 0 getty
Dec 10 06:41:27 cloud kernel: [1711384.076720] [ 2887] 0 2887 4063 42 0 0 0 getty
Dec 10 06:41:27 cloud kernel: [1711384.077161] [ 2888] 0 2888 4063 40 0 0 0 getty
Dec 10 06:41:27 cloud kernel: [1711384.077603] [ 2889] 0 2889 4063 41 0 0 0 getty
Dec 10 06:41:27 cloud kernel: [1711384.078047] [ 2890] 0 2890 4063 41 0 0 0 getty
Dec 10 06:41:27 cloud kernel: [1711384.078536] [ 2891] 0 2891 4063 40 0 0 0 getty
Dec 10 06:41:27 cloud kernel: [1711384.078979] [ 3711] 0 3711 31922 278 0 0 0 console-kit-dae
Dec 10 06:41:27 cloud kernel: [1711384.079444] [21957] 0 21957 1044 37 0 0 0 mysqld_safe
Dec 10 06:41:27 cloud kernel: [1711384.079895] [22320] 105 22320 96631 19582 0 0 0 mysqld
Dec 10 06:41:27 cloud kernel: [1711384.080357] [22321] 0 22321 1396 26 0 0 0 logger
Dec 10 06:41:27 cloud kernel: [1711384.080835] [ 3086] 33 3086 41182 1994 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.081286] [21327] 33 21327 73497 5283 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.081731] [21404] 33 21404 73951 5828 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.082230] [21405] 33 21405 74016 5890 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.082675] [21419] 33 21419 73379 5166 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.083117] [21422] 33 21422 73312 5159 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.083558] [21526] 33 21526 73371 5187 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.083979] [21527] 33 21527 73433 5238 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.084425] [21528] 33 21528 73568 5335 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.084854] [21529] 33 21529 73184 5059 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.085285] [21547] 33 21547 73439 5220 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.085733] [21577] 33 21577 73459 5228 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.086223] [21578] 33 21578 73219 4983 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.086650] [21579] 33 21579 73464 5237 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.087091] [21580] 33 21580 73349 5082 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.087559] [21581] 33 21581 73349 5077 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.088043] [21582] 33 21582 73349 5100 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.088520] [21583] 33 21583 72404 4272 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.088972] [21584] 33 21584 72404 4272 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.089398] [21585] 33 21585 73349 5106 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.089821] [21586] 33 21586 73412 5192 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.090283] [21587] 33 21587 73242 5024 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.090748] [21588] 33 21588 73242 5023 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.091176] [21589] 33 21589 72652 4444 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.091602] [21590] 33 21590 71976 3758 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.092042] [21591] 33 21591 71381 3164 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.092501] [21592] 33 21592 70915 2766 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.092923] [21593] 33 21593 61758 2411 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.093349] [21594] 33 21594 70639 2497 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.093771] [21595] 33 21595 70639 2491 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.094235] [21596] 33 21596 70637 2490 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.094665] [21597] 33 21597 70628 2482 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.095096] [21598] 33 21598 70628 2483 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.095522] [21599] 33 21599 70628 2483 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.095951] [21600] 33 21600 70628 2482 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.096389] [21601] 33 21601 70628 2482 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.096827] [21602] 33 21602 70628 2482 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.097259] [21603] 33 21603 70628 2482 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.097684] [21604] 33 21604 70628 2482 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.098149] [21605] 33 21605 70628 2482 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.098575] [21606] 33 21606 70628 2482 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.099030] [21607] 33 21607 70628 2482 0 0 0 apache2
Dec 10 06:41:27 cloud kernel: [1711384.099451] Out of memory: Kill process 22320 (mysqld) score 154 or sacrifice child
Dec 10 06:41:27 cloud kernel: [1711384.099883] Killed process 22320 (mysqld) total-vm:386524kB, anon-rss:78328kB, file-rss:0kB
Dec 10 06:41:27 cloud mysqld_safe: Number of processes running now: 0
Dec 10 06:41:27 cloud mysqld_safe: mysqld restarted
Dec 10 06:41:28 cloud kernel: [1711385.712243] apache2 invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
Dec 10 06:41:28 cloud kernel: [1711385.712810] apache2 cpuset=/ mems_allowed=0
Dec 10 06:41:28 cloud kernel: [1711385.713046] Pid: 21595, comm: apache2 Not tainted 3.2.0-4-amd64 #1 Debian 3.2.41-2+deb7u2
Dec 10 06:41:28 cloud kernel: [1711385.718027] Mem-Info:
Dec 10 06:41:28 cloud kernel: [1711385.718222] Node 0 DMA per-cpu:
Dec 10 06:41:28 cloud kernel: [1711385.718440] CPU 0: hi: 0, btch: 1 usd: 0
Dec 10 06:41:28 cloud kernel: [1711385.718683] Node 0 DMA32 per-cpu:
Dec 10 06:41:28 cloud kernel: [1711385.718903] CPU 0: hi: 186, btch: 31 usd: 0
Dec 10 06:41:28 cloud kernel: [1711385.719148] active_anon:113844 inactive_anon:461 isolated_anon:2
Dec 10 06:41:28 cloud kernel: [1711385.719149] active_file:14 inactive_file:32 isolated_file:33
Dec 10 06:41:28 cloud kernel: [1711385.719150] unevictable:0 dirty:0 writeback:20 unstable:0
Dec 10 06:41:28 cloud kernel: [1711385.719151] free:1210 slab_reclaimable:1148 slab_unreclaimable:2950
Dec 10 06:41:28 cloud kernel: [1711385.719152] mapped:351 shmem:373 pagetables:5843 bounce:0
Dec 10 06:41:28 cloud kernel: [1711385.725329] Node 0 DMA free:2048kB min:84kB low:104kB high:124kB active_anon:13388kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15680kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:32kB slab_unreclaimable:136kB kernel_stack:120kB pagetables:108kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
Dec 10 06:41:28 cloud kernel: [1711385.726946] lowmem_reserve[]: 0 489 489 489
Dec 10 06:41:28 cloud kernel: [1711385.727208] Node 0 DMA32 free:2792kB min:2784kB low:3480kB high:4176kB active_anon:441988kB inactive_anon:1836kB active_file:56kB inactive_file:128kB unevictable:0kB isolated(anon):8kB isolated(file):132kB present:500948kB mlocked:0kB dirty:0kB writeback:80kB mapped:1404kB shmem:1492kB slab_reclaimable:4560kB slab_unreclaimable:11664kB kernel_stack:1144kB pagetables:23264kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:33394 all_unreclaimable? yes
Dec 10 06:41:28 cloud kernel: [1711385.728895] lowmem_reserve[]: 0 0 0 0
Dec 10 06:41:28 cloud kernel: [1711385.729147] Node 0 DMA: 14*4kB 0*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 2056kB
Dec 10 06:41:28 cloud kernel: [1711385.729730] Node 0 DMA32: 689*4kB 5*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2796kB
Dec 10 06:41:28 cloud kernel: [1711385.730347] 455 total pagecache pages
Dec 10 06:41:28 cloud kernel: [1711385.730567] 0 pages in swap cache
Dec 10 06:41:28 cloud kernel: [1711385.730782] Swap cache stats: add 0, delete 0, find 0/0
Dec 10 06:41:28 cloud kernel: [1711385.731031] Free swap = 0kB
Dec 10 06:41:28 cloud kernel: [1711385.731234] Total swap = 0kB
Dec 10 06:41:28 cloud kernel: [1711385.732988] 131053 pages RAM
Dec 10 06:41:28 cloud kernel: [1711385.733203] 3819 pages reserved
Dec 10 06:41:28 cloud kernel: [1711385.733412] 71552 pages shared
Dec 10 06:41:28 cloud kernel: [1711385.733649] 123160 pages non-shared
Dec 10 06:41:28 cloud kernel: [1711385.733952] [ pid ] uid tgid total_vm rss cpu oom_adj oom_score_adj name
Dec 10 06:41:28 cloud kernel: [1711385.734422] [ 311] 0 311 5355 157 0 -17 -1000 udevd
Dec 10 06:41:28 cloud kernel: [1711385.734866] [ 449] 0 449 5330 139 0 -17 -1000 udevd
Dec 10 06:41:28 cloud kernel: [1711385.735305] [ 450] 0 450 5361 156 0 -17 -1000 udevd
Dec 10 06:41:28 cloud kernel: [1711385.735750] [ 1866] 0 1866 13514 484 0 0 0 rsyslogd
Dec 10 06:41:28 cloud kernel: [1711385.736210] [ 1918] 0 1918 1028 35 0 0 0 acpid
Dec 10 06:41:28 cloud kernel: [1711385.736648] [ 1973] 0 1973 70397 2538 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.737091] [ 2000] 0 2000 4167 38 0 0 0 atd
Dec 10 06:41:28 cloud kernel: [1711385.737524] [ 2048] 0 2048 5101 63 0 0 0 cron
Dec 10 06:41:28 cloud kernel: [1711385.737964] [ 2078] 102 2078 7450 85 0 0 0 dbus-daemon
Dec 10 06:41:28 cloud kernel: [1711385.738413] [ 2487] 0 2487 12462 153 0 -17 -1000 sshd
Dec 10 06:41:28 cloud kernel: [1711385.738853] [ 2857] 101 2857 11182 108 0 0 0 exim4
Dec 10 06:41:28 cloud kernel: [1711385.739291] [ 2886] 0 2886 4063 39 0 0 0 getty
Dec 10 06:41:28 cloud kernel: [1711385.739736] [ 2887] 0 2887 4063 42 0 0 0 getty
Dec 10 06:41:28 cloud kernel: [1711385.740186] [ 2888] 0 2888 4063 40 0 0 0 getty
Dec 10 06:41:28 cloud kernel: [1711385.740634] [ 2889] 0 2889 4063 41 0 0 0 getty
Dec 10 06:41:28 cloud kernel: [1711385.741388] [ 2890] 0 2890 4063 41 0 0 0 getty
Dec 10 06:41:28 cloud kernel: [1711385.741828] [ 2891] 0 2891 4063 40 0 0 0 getty
Dec 10 06:41:28 cloud kernel: [1711385.742276] [ 3711] 0 3711 31922 278 0 0 0 console-kit-dae
Dec 10 06:41:28 cloud kernel: [1711385.742736] [21957] 0 21957 1044 37 0 0 0 mysqld_safe
Dec 10 06:41:28 cloud kernel: [1711385.743188] [ 3086] 33 3086 41182 1994 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.743627] [21327] 33 21327 73497 5280 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.744164] [21404] 33 21404 73951 5825 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.744607] [21405] 33 21405 74016 5890 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.745209] [21419] 33 21419 73379 5163 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.745721] [21422] 33 21422 73312 5159 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.746433] [21526] 33 21526 73371 5187 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.746880] [21527] 33 21527 73433 5235 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.747322] [21528] 33 21528 73568 5332 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.747765] [21529] 33 21529 73212 5059 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.748247] [21547] 33 21547 73439 5255 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.748691] [21577] 33 21577 73459 5240 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.749159] [21578] 33 21578 73219 4991 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.749602] [21579] 33 21579 73464 5245 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.750072] [21580] 33 21580 73349 5082 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.750515] [21581] 33 21581 73349 5077 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.750953] [21582] 33 21582 73349 5150 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.751393] [21583] 33 21583 72404 4272 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.751836] [21584] 33 21584 72404 4272 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.752294] [21585] 33 21585 73349 5106 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.752747] [21586] 33 21586 73412 5196 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.753210] [21587] 33 21587 73250 5042 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.753653] [21588] 33 21588 73250 5047 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.754100] [21589] 33 21589 73107 4943 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.754543] [21590] 33 21590 72544 4343 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.754980] [21591] 33 21591 72109 3947 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.755426] [21592] 33 21592 72109 3892 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.755868] [21594] 33 21594 71852 3674 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.756324] [21595] 33 21595 71929 3743 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.756771] [21596] 33 21596 71929 3742 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.757210] [21597] 33 21597 71763 3568 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.757652] [21598] 33 21598 71929 3743 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.758098] [21599] 33 21599 71929 3742 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.758541] [21600] 33 21600 71763 3570 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.758979] [21601] 33 21601 71763 3568 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.759430] [21602] 33 21602 71575 3406 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.759868] [21603] 33 21603 71123 2948 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.760327] [21604] 33 21604 71087 2857 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.760766] [21605] 33 21605 71087 2859 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.761210] [21606] 33 21606 71575 3406 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.761656] [21607] 33 21607 71087 2857 0 0 0 apache2
Dec 10 06:41:28 cloud kernel: [1711385.762101] [21620] 105 21620 30993 668 0 0 0 mysqld
Dec 10 06:41:28 cloud kernel: [1711385.762542] [21621] 0 21621 1396 23 0 0 0 logger
Dec 10 06:41:28 cloud kernel: [1711385.762978] Out of memory: Kill process 21405 (apache2) score 47 or sacrifice child
Dec 10 06:41:28 cloud kernel: [1711385.763420] Killed process 21405 (apache2) total-vm:296064kB, anon-rss:23560kB, file-rss:0kB
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 [Note] Plugin 'FEDERATED' is disabled.
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 InnoDB: The InnoDB memory heap is disabled
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 InnoDB: Mutexes and rw_locks use GCC atomic builtins
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 InnoDB: Compressed tables use zlib 1.2.7
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 InnoDB: Using Linux native AIO
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 InnoDB: Initializing buffer pool, size = 128.0M
Dec 10 06:41:29 cloud mysqld: InnoDB: mmap(137363456 bytes) failed; errno 12
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 InnoDB: Completed initialization of buffer pool
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 InnoDB: Fatal error: cannot allocate memory for the buffer pool
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 [ERROR] Plugin 'InnoDB' init function returned error.
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 [ERROR] Unknown/unsupported storage engine: InnoDB
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 [ERROR] Aborting
Dec 10 06:41:29 cloud mysqld:
Dec 10 06:41:29 cloud mysqld: 131210 6:41:28 [Note] /usr/sbin/mysqld: Shutdown complete
Dec 10 06:41:29 cloud mysqld:
Dec 10 06:41:30 cloud mysqld_safe: mysqld from pid file /var/run/mysqld/mysqld.pid ended
Best Answer
Configure nginx + php-fmp static pool and you will be able to have mostly stable ram usage.
If you use apache + php module, your max apache memory usage is MaxClients * average request ram usage. Count this and you will see, how much ram your setup are able to eat:) Alternatively you can limit MaxClients, but nginx + php-fmp works better.
At least make sure, that (max php proceses * php memory_limit) + max mysql memory usage from tuning-primer.sh is not much more then your vm RAM.