• [^] # Re: Script simplifié

    Posté par . En réponse au message fuite mémoire PHP. Évalué à 1.

    Ok j'ai essayé MaxRequestsPerChild à 1 et ça fonctionne,

    Une fois la requête finie, le processus apache qui a géré la requête se ferme et donc la mémoire est libérée.

    Je trouve ça étonnant que apache même si apache garde ses processus fils ouverts pour être plus réactif, ceux-ci ne libèrent pas leur mémoire automatiquement.

    Cela m'entrainait des erreurs de type OOM :

    [ 8810.445983] postgres invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
[ 8810.455017] Backtrace:
[ 8810.457611] [<c00416a8>] (dump_backtrace+0x0/0x110) from [<c03434d0>] (dump_stack+0x18/0x1c)
[ 8810.466491] r7:000201da r6:00000000 r5:de5af800 r4:0000006d
[ 8810.472412] [<c03434b8>] (dump_stack+0x0/0x1c) from [<c00a5454>] (T.356+0x54/0x154)
[ 8810.480407] [<c00a5400>] (T.356+0x0/0x154) from [<c00a5598>] (T.353+0x44/0x21c)
[ 8810.488006] r7:000201da r6:00000000 r5:de5af800 r4:0000006d
[ 8810.493927] [<c00a5554>] (T.353+0x0/0x21c) from [<c00a59b8>] (out_of_memory+0x248/0x300)
[ 8810.502380] [<c00a5770>] (out_of_memory+0x0/0x300) from [<c00a8a9c>] (__alloc_pages_nodemask+0x48c/0x57c)
[ 8810.512359] [<c00a8610>] (__alloc_pages_nodemask+0x0/0x57c) from [<c00aa6bc>] (__do_page_cache_readahead+0xa8/0x1ec)
[ 8810.523315] [<c00aa614>] (__do_page_cache_readahead+0x0/0x1ec) from [<c00aa828>] (ra_submit+0x28/0x30)
[ 8810.533020] [<c00aa800>] (ra_submit+0x0/0x30) from [<c00a4250>] (filemap_fault+0x16c/0x3b4)
[ 8810.541778] [<c00a40e4>] (filemap_fault+0x0/0x3b4) from [<c00b6fc8>] (__do_fault+0x58/0x3d4)
[ 8810.550598] [<c00b6f70>] (__do_fault+0x0/0x3d4) from [<c00b8100>] (handle_mm_fault+0x304/0x678)
[ 8810.559661] [<c00b7dfc>] (handle_mm_fault+0x0/0x678) from [<c0044b60>] (do_page_fault+0xe8/0x28c)
[ 8810.568908] [<c0044a78>] (do_page_fault+0x0/0x28c) from [<c00322a4>] (do_DataAbort+0x3c/0xa0)
[ 8810.577819] [<c0032268>] (do_DataAbort+0x0/0xa0) from [<c003d5e4>] (ret_from_exception+0x0/0x10)
[ 8810.586944] Exception stack(0xdd9f9fb0 to 0xdd9f9ff8)
[ 8810.592224] 9fa0: 40b11fd0 00000400 fffff166 40293f38
[ 8810.600738] 9fc0: befbeedc befbf1fc 00000000 000000c7 befbf51c 403cc10c 00000000 40b12250
[ 8810.609252] 9fe0: 00000000 befbee78 400f170d 400e1496 00000030 ffffffff
[ 8810.616149] r7:000000c7 r6:00000000 r5:befbf1fc r4:ffffffff
[ 8810.622039] Mem-info:
[ 8810.624420] Normal per-cpu:
[ 8810.627319] CPU 0: hi: 186, btch: 31 usd: 31
[ 8810.632324] active_anon:109444 inactive_anon:661 isolated_anon:0
[ 8810.632324] active_file:41 inactive_file:115 isolated_file:0
[ 8810.632324] unevictable:10146 dirty:0 writeback:0 unstable:0
[ 8810.632324] free:698 slab_reclaimable:592 slab_unreclaimable:1639
[ 8810.632354] mapped:8380 shmem:7141 pagetables:998 bounce:0
[ 8810.662750] Normal free:2792kB min:2844kB low:3552kB high:4264kB active_anon:437776kB inactive_anon:2644kB active_file:164kB inactive_file:460kB unevictable:40584kB isolated(anon):0kB isolated(file):0kB present:505856kB mlocked:40584kB dirty:0kB writeback:0kB mapped:33520kB shmem:28564kB slab_reclaimable:2368kB slab_unreclaimable:6556kB kernel_stack:808kB pagetables:3992kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:953 all_unreclaimable? yes
[ 8810.704620] lowmem_reserve[]: 0 0
[ 8810.708068] Normal: 650*4kB 14*8kB 3*16kB 1*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2792kB
[ 8810.718994] 8755 total pagecache pages
[ 8810.722900] 0 pages in swap cache
[ 8810.726348] Swap cache stats: add 0, delete 0, find 0/0
[ 8810.731781] Free swap = 0kB
[ 8810.734771] Total swap = 0kB
[ 8810.751281] 131072 pages of RAM
[ 8810.754547] 986 free pages
[ 8810.757385] 5877 reserved pages
[ 8810.760650] 2231 slab pages
[ 8810.763549] 78479 pages shared
[ 8810.766723] 0 pages swap cached
[ 8810.769989] [ pid ] uid tgid total_vm rss cpu oom_adj oom_score_adj name
[ 8810.777709] [ 1566] 0 1566 572 214 0 -17 -1000 udevd
[ 8810.785522] [ 2960] 0 2960 6876 273 0 0 0 rsyslogd
[ 8810.793609] [ 3011] 103 3011 1069 159 0 0 0 dnsmasq
[ 8810.801635] [ 3124] 0 3124 846 175 0 0 0 cron
[ 8810.809356] [ 3161] 104 3161 11130 1527 0 -13 -900 postgres
[ 8810.817443] [ 3169] 104 3169 11130 2385 0 0 0 postgres
[ 8810.825531] [ 3170] 104 3170 11130 499 0 0 0 postgres
[ 8810.833587] [ 3171] 104 3171 11130 452 0 0 0 postgres
[ 8810.841644] [ 3172] 104 3172 3640 304 0 0 0 postgres
[ 8810.849731] [ 3188] 0 3188 1521 216 0 -17 -1000 sshd
[ 8810.857452] [ 3240] 0 3240 416 144 0 0 0 getty
[ 8810.865234] [ 3242] 0 3242 2277 539 0 0 0 sshd
[ 8810.872955] [ 3246] 0 3246 667 178 0 0 0 sftp-server
[ 8810.881286] [ 3247] 0 3247 2277 540 0 0 0 sshd
[ 8810.888977] [ 3255] 0 3255 1045 235 0 0 0 bash
[ 8810.896697] [ 3269] 0 3269 2277 540 0 0 0 sshd
[ 8810.904418] [ 3279] 0 3279 1085 243 0 0 0 bash
[ 8810.912109] [ 3646] 0 3646 2277 540 0 0 0 sshd
[ 8810.919830] [ 3658] 0 3658 1063 253 0 0 0 bash
[ 8810.927551] [ 4568] 0 4568 10336 10146 0 0 0 acquisition
[ 8810.935882] [ 4569] 104 4569 11451 1083 0 0 0 postgres
[ 8810.943939] [ 4575] 104 4575 11451 1423 0 0 0 postgres
[ 8810.952026] [ 4576] 104 4576 11195 2383 0 0 0 postgres
[ 8810.960083] [ 4695] 0 4695 2277 540 0 0 0 sshd
[ 8810.967803] [ 4709] 0 4709 1047 237 0 0 0 bash
[ 8810.975494] [ 4839] 0 4839 1048 237 0 0 0 top
[ 8810.983123] [ 5458] 0 5458 2277 540 0 0 0 sshd
[ 8810.990844] [ 5466] 0 5466 700 184 0 0 0 sftp-server
[ 8810.999176] [ 5825] 0 5825 5814 1236 0 0 0 apache2
[ 8811.007141] [ 5844] 33 5844 6090 1487 0 0 0 apache2
[ 8811.015136] [ 5845] 33 5845 12236 7625 0 0 0 apache2
[ 8811.023101] [ 5846] 33 5846 12244 7598 0 0 0 apache2
[ 8811.031097] [ 5847] 33 5847 8906 4222 0 0 0 apache2
[ 8811.039062] [ 5848] 33 5848 18130 13666 0 0 0 apache2
[ 8811.047058] [ 5849] 104 5849 11642 1548 0 0 0 postgres
[ 8811.055145] [ 5851] 104 5851 11898 5538 0 0 0 postgres
[ 8811.063232] [ 5852] 33 5852 18124 13645 0 0 0 apache2
[ 8811.071197] [ 5853] 33 5853 18124 13648 0 0 0 apache2
[ 8811.079193] [ 5858] 33 5858 18130 13651 0 0 0 apache2
[ 8811.087158] [ 5859] 104 5859 11804 5511 0 0 0 postgres
[ 8811.095275] [ 5860] 104 5860 11642 5287 0 0 0 postgres
[ 8811.103363] [ 5861] 104 5861 11642 6979 0 0 0 postgres
[ 8811.111419] [ 5862] 33 5862 18132 13652 0 0 0 apache2
[ 8811.119415] [ 5863] 33 5863 18124 13645 0 0 0 apache2
[ 8811.127380] [ 5870] 104 5870 11642 6728 0 0 0 postgres
[ 8811.135437] [ 5900] 104 5900 11642 6921 0 0 0 postgres
[ 8811.143524] [ 5994] 104 5994 11642 6925 0 0 0 postgres
[ 8811.151580] [ 6674] 104 6674 11642 6972 0 0 0 postgres
[ 8811.159667] [ 6689] 104 6689 11642 6918 0 0 0 postgres
[ 8811.167724] [ 6753] 0 6753 1552 373 0 0 0 vim
[ 8811.175354] Out of memory: Kill process 5848 (apache2) score 109 or sacrifice child
[ 8811.183319] Killed process 5848 (apache2) total-vm:72520kB, anon-rss:53380kB, file-rss:1284kB
[ 8967.585662] top invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
[ 8967.594299] Backtrace:
[ 8967.596893] [<c00416a8>] (dump_backtrace+0x0/0x110) from [<c03434d0>] (dump_stack+0x18/0x1c)
[ 8967.605682] r7:000201da r6:00000000 r5:dda30880 r4:0000008d
[ 8967.611602] [<c03434b8>] (dump_stack+0x0/0x1c) from [<c00a5454>] (T.356+0x54/0x154)
[ 8967.619598] [<c00a5400>] (T.356+0x0/0x154) from [<c00a5598>] (T.353+0x44/0x21c)
[ 8967.627197] r7:000201da r6:00000000 r5:dda30880 r4:0000008d
[ 8967.633117] [<c00a5554>] (T.353+0x0/0x21c) from [<c00a59b8>] (out_of_memory+0x248/0x300)
[ 8967.641571] [<c00a5770>] (out_of_memory+0x0/0x300) from [<c00a8a9c>] (__alloc_pages_nodemask+0x48c/0x57c)
[ 8967.651519] [<c00a8610>] (__alloc_pages_nodemask+0x0/0x57c) from [<c00aa6bc>] (__do_page_cache_readahead+0xa8/0x1ec)
[ 8967.662506] [<c00aa614>] (__do_page_cache_readahead+0x0/0x1ec) from [<c00aa828>] (ra_submit+0x28/0x30)
[ 8967.672210] [<c00aa800>] (ra_submit+0x0/0x30) from [<c00a4250>] (filemap_fault+0x16c/0x3b4)
[ 8967.680908] [<c00a40e4>] (filemap_fault+0x0/0x3b4) from [<c00b6fc8>] (__do_fault+0x58/0x3d4)
[ 8967.689697] [<c00b6f70>] (__do_fault+0x0/0x3d4) from [<c00b8100>] (handle_mm_fault+0x304/0x678)
[ 8967.698760] [<c00b7dfc>] (handle_mm_fault+0x0/0x678) from [<c0044b60>] (do_page_fault+0xe8/0x28c)
[ 8967.708038] [<c0044a78>] (do_page_fault+0x0/0x28c) from [<c0032204>] (do_PrefetchAbort+0x3c/0xa0)
[ 8967.717285] [<c00321c8>] (do_PrefetchAbort+0x0/0xa0) from [<c003d5e4>] (ret_from_exception+0x0/0x10)
[ 8967.726806] Exception stack(0xde683fb0 to 0xde683ff8)
[ 8967.732055] 3fa0: 000434c8 00920000 40299365 40118008
[ 8967.740570] 3fc0: 0001fd80 00000000 bed689b4 0001e7dc 0001d628 0001d1a0 0001db90 0001d1a0
[ 8967.749084] 3fe0: 4039c290 bed67ee0 0000e17f 0000e17e 20000030 ffffffff
[ 8967.755981] r7:0001e7dc r6:bed689b4 r5:00000000 r4:ffffffff
[ 8967.761871] Mem-info:
[ 8967.764251] Normal per-cpu:
[ 8967.767150] CPU 0: hi: 186, btch: 31 usd: 46
[ 8967.772155] active_anon:109550 inactive_anon:657 isolated_anon:0
[ 8967.772155] active_file:60 inactive_file:108 isolated_file:0
[ 8967.772155] unevictable:10146 dirty:0 writeback:0 unstable:0
[ 8967.772186] free:683 slab_reclaimable:584 slab_unreclaimable:1632
[ 8967.772186] mapped:8464 shmem:7141 pagetables:954 bounce:0
[ 8967.802612] Normal free:2732kB min:2844kB low:3552kB high:4264kB active_anon:438200kB inactive_anon:2628kB active_file:240kB inactive_file:432kB unevictable:40584kB isolated(anon):0kB isolated(file):0kB present:505856kB mlocked:40584kB dirty:0kB writeback:0kB mapped:33856kB shmem:28564kB slab_reclaimable:2336kB slab_unreclaimable:6528kB kernel_stack:792kB pagetables:3816kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:1018 all_unreclaimable? yes
[ 8967.844573] lowmem_reserve[]: 0 0
[ 8967.848022] Normal: 553*4kB 57*8kB 2*16kB 1*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2732kB
[ 8967.858947] 8767 total pagecache pages
[ 8967.862823] 0 pages in swap cache
[ 8967.866302] Swap cache stats: add 0, delete 0, find 0/0
[ 8967.871734] Free swap = 0kB
[ 8967.874725] Total swap = 0kB
[ 8967.891204] 131072 pages of RAM
[ 8967.894500] 978 free pages
[ 8967.897338] 5877 reserved pages
[ 8967.900604] 2216 slab pages
[ 8967.903503] 72890 pages shared
[ 8967.906677] 0 pages swap cached
[ 8967.909942] [ pid ] uid tgid total_vm rss cpu oom_adj oom_score_adj name
[ 8967.917694] [ 1566] 0 1566 572 214 0 -17 -1000 udevd
[ 8967.925476] [ 2960] 0 2960 6876 275 0 0 0 rsyslogd
[ 8967.933563] [ 3011] 103 3011 1069 159 0 0 0 dnsmasq
[ 8967.941528] [ 3124] 0 3124 846 175 0 0 0 cron
[ 8967.949249] [ 3161] 104 3161 11130 1527 0 -13 -900 postgres
[ 8967.957305] [ 3169] 104 3169 11130 2384 0 0 0 postgres
[ 8967.965393] [ 3170] 104 3170 11130 499 0 0 0 postgres
[ 8967.973449] [ 3171] 104 3171 11130 460 0 0 0 postgres
[ 8967.981536] [ 3172] 104 3172 3640 304 0 0 0 postgres
[ 8967.989593] [ 3188] 0 3188 1521 216 0 -17 -1000 sshd
[ 8967.997314] [ 3240] 0 3240 416 144 0 0 0 getty
[ 8968.005096] [ 3242] 0 3242 2277 539 0 0 0 sshd
[ 8968.012817] [ 3246] 0 3246 667 178 0 0 0 sftp-server
[ 8968.021148] [ 3247] 0 3247 2277 540 0 0 0 sshd
[ 8968.028869] [ 3255] 0 3255 1045 235 0 0 0 bash
[ 8968.036560] [ 3269] 0 3269 2277 540 0 0 0 sshd
[ 8968.044342] [ 3279] 0 3279 1085 243 0 0 0 bash
[ 8968.052062] [ 3646] 0 3646 2277 540 0 0 0 sshd
[ 8968.059783] [ 3658] 0 3658 1063 253 0 0 0 bash
[ 8968.067474] [ 4568] 0 4568 10336 10146 0 0 0 acquisition
[ 8968.075836] [ 4569] 104 4569 11451 1076 0 0 0 postgres
[ 8968.083892] [ 4575] 104 4575 11451 1498 0 0 0 postgres
[ 8968.091979] [ 4576] 104 4576 11195 2428 0 0 0 postgres
[ 8968.100036] [ 4695] 0 4695 2277 540 0 0 0 sshd
[ 8968.107727] [ 4709] 0 4709 1048 238 0 0 0 bash
[ 8968.115447] [ 4839] 0 4839 1048 241 0 0 0 top
[ 8968.123077] [ 5458] 0 5458 2277 540 0 0 0 sshd
[ 8968.130767] [ 5466] 0 5466 700 184 0 0 0 sftp-server
[ 8968.139129] [ 5825] 0 5825 5814 1236 0 0 0 apache2
[ 8968.147094] [ 5844] 33 5844 6090 1487 0 0 0 apache2
[ 8968.155090] [ 5845] 33 5845 12236 7625 0 0 0 apache2
[ 8968.163055] [ 5846] 33 5846 22485 17722 0 0 0 apache2
[ 8968.171051] [ 5847] 33 5847 12242 7597 0 0 0 apache2
[ 8968.179016] [ 5849] 104 5849 11642 1543 0 0 0 postgres
[ 8968.187103] [ 5851] 104 5851 11898 5525 0 0 0 postgres
[ 8968.195159] [ 5852] 33 5852 18124 13645 0 0 0 apache2
[ 8968.203155] [ 5853] 33 5853 18124 13648 0 0 0 apache2
[ 8968.211120] [ 5858] 33 5858 18130 13651 0 0 0 apache2
[ 8968.219146] [ 5859] 104 5859 11642 5376 0 0 0 postgres
[ 8968.227233] [ 5860] 104 5860 11771 7303 0 0 0 postgres
[ 8968.235290] [ 5862] 33 5862 18132 13652 0 0 0 apache2
[ 8968.243286] [ 5863] 33 5863 18124 13645 0 0 0 apache2
[ 8968.251251] [ 5870] 104 5870 11642 6719 0 0 0 postgres
[ 8968.259338] [ 5900] 104 5900 11642 6907 0 0 0 postgres
[ 8968.267395] [ 5994] 104 5994 11642 6915 0 0 0 postgres
[ 8968.275482] [ 6674] 104 6674 11642 6960 0 0 0 postgres
[ 8968.283538] [ 6689] 104 6689 11642 6904 0 0 0 postgres
[ 8968.291595] [ 6773] 0 6773 748 102 0 0 0 tail
[ 8968.299316] Out of memory: Kill process 5846 (apache2) score 141 or sacrifice child
[ 8968.307281] Killed process 5846 (apache2) total-vm:89940kB, anon-rss:69604kB, file-rss:1284kB

    Merci pour ton aide