AWS EC2實例夜間崩潰....只運行Magento

我正在運行AWS EC2實例的普通亞馬遜linux風格。它目前正在運行Magento 2，只有1gb ram，因爲它只是一個測試服務器（一年免費！）。它似乎每天晚上崩潰，我必須重新啓動實例才能恢復SSH。檢查var/log/messages顯示OOM殺手可能會清除我的ssh。出於某種原因，php和crond顯示出很多次。有人能指出我正確的調試方向來縮小這些PHP和Crond進程的來源。以下是消息日誌中的剪切片段：AWS EC2實例夜間崩潰....只運行Magento

Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.923629] Mem-Info: 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.924640] active_anon:115361 inactive_anon:115370 isolated_anon:0 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.924640] active_file:708 inactive_file:495 isolated_file:0 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.924640] unevictable:0 dirty:0 writeback:0 unstable:0 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.924640] slab_reclaimable:2568 slab_unreclaimable:4748 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.924640] mapped:879 shmem:1 pagetables:9876 bounce:0 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.924640] free:1961 free_pcp:13 free_cma:0 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.938433] Node 0 DMA free:3972kB min:60kB low:72kB high:88kB active_anon:4832kB inactive_anon:4844kB active_file:96kB inactive_file:408kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15988kB managed:15904kB mlocked:0kB dirty:0kB writeback:0kB mapped:28kB shmem:0kB slab_reclaimable:244kB slab_unreclaimable:372kB kernel_stack:240kB pagetables:680kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:3212 all_unreclaimable? yes 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.957415] lowmem_reserve[]: 0 976 976 976 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.959655] Node 0 DMA32 free:3872kB min:3828kB low:4784kB high:5740kB active_anon:456612kB inactive_anon:456636kB active_file:2736kB inactive_file:1572kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:1032192kB managed:1003540kB mlocked:0kB dirty:0kB writeback:0kB mapped:3488kB shmem:4kB slab_reclaimable:10028kB slab_unreclaimable:18620kB kernel_stack:3712kB pagetables:38824kB unstable:0kB bounce:0kB free_pcp:52kB local_pcp:52kB free_cma:0kB writeback_tmp:0kB pages_scanned:46664 all_unreclaimable? yes 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.988129] lowmem_reserve[]: 0 0 0 0 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55106.998441] Node 0 DMA: 43*4kB (E) 63*8kB (EM) 46*16kB (EM) 22*32kB (UEMR) 5*64kB (MR) 2*128kB (R) 3*256kB (R) 1*512kB (R) 0*1024kB 0*2048kB 0*4096kB = 3972kB 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.008215] Node 0 DMA32: 274*4kB (UEMR) 19*8kB (R) 19*16kB (R) 13*32kB (R) 6*64kB (R) 2*128kB (R) 1*256kB (R) 2*512kB (R) 0*1024kB 0*2048kB 0*4096kB = 3888kB 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.018312] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.023195] 1266 total pagecache pages 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.025399] 52 pages in swap cache 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.027423] Swap cache stats: add 710804, delete 710752, find 168673/295578 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.031609] Free swap = 0kB 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.033507] Total swap = 1048572kB 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.035550] 262045 pages RAM 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.037322] 0 pages HighMem/MovableOnly 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.039675] 7184 pages reserved 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.041568] [ pid ] uid tgid total_vm  rss nr_ptes nr_pmds swapents oom_score_adj name 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.046576] [ 1508]  0 1508  2866  1  11  3  238   -1000 udevd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.051456] [ 2026]  0 2026  2340  26  10  3  97    0 dhclient 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.056623] [ 2067]  0 2067 28018  24  26  3  86   -1000 auditd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.061685] [ 2085]  0 2085 61847  62  23  3  176    0 rsyslogd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.066646] [ 2101]  0 2101  1095  3  8  3  34    0 rngd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.071259] [ 2115] 32 2115  8823  13  21  3  84    0 rpcbind 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.079086] [ 2132] 29 2132  9965  1  24  3  198    0 rpc.statd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.084942] [ 2155] 81 2155  5448  1  15  3  76    0 dbus-daemon 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.079086] [ 2132] 29 2132  9965  1  24  3  198    0 rpc.statd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.084942] [ 2155] 81 2155  5448  1  15  3  76    0 dbus-daemon 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.090856] [ 2255]  0 2255 19454  0  41  3  212   -1000 sshd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.095863] [ 2280] 38 2280  7321  30  18  3  110    0 ntpd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.100734] [ 2290]  0 2290 12027  0  26  3  145    0 vsftpd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.105680] [ 2704]  0 2704 22241  43  45  3  420    0 sendmail 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.110775] [ 2712] 51 2712 20105  0  39  3  387    0 sendmail 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.116132] [ 2741]  0 2741 109631  11  198  4  1827    0 httpd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.121252] [ 2749]  0 2749 29880  26  15  3  119    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.126542] [ 2759]  0 2759  4267  0  13  3  45    0 atd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.131429] [ 2786]  0 2786  1078  1  8  3  23    0 mingetty 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.136825] [ 2788]  0 2788  1078  1  8  3  23    0 mingetty 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.142284] [ 2790]  0 2790  1078  1  8  3  23    0 mingetty 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.147440] [ 2792]  0 2792  1078  1  8  3  22    0 mingetty 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.152566] [ 2794]  0 2794  1078  1  8  3  23    0 mingetty 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.157974] [ 2796]  0 2796  1078  1  8  3  23    0 mingetty 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.163385] [ 2801]  0 2801  2719  1  10  3  93   -1000 udevd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.168763] [ 2802]  0 2802  2719  1  10  3  93   -1000 udevd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.173841] [ 2804]  0 2804  1615  1  9  3  31    0 agetty 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.178963] [ 2841] 48 2841 118657  4  215  4 11156    0 httpd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.184133] [ 2842] 48 2842 118657  4  215  4 11156    0 httpd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.189346] [ 2843] 48 2843 118657  4  215  4 11156    0 httpd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.194472] [ 2844] 48 2844 118657  4  215  4 11156    0 httpd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.199467] [ 2845] 48 2845 118657  4  215  4 11156    0 httpd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.204794] [ 2964] 48 2964 118657  4  215  4 11156    0 httpd 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.210517] [14102] 501 14102 59070 14152  70  3  1633    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.215530] [14111] 501 14111 36683  4  28  3  176    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.220551] [14120] 501 14120 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.225583] [14126] 501 14126 107278  0  149  3 17380    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.231030] [14131] 501 14131 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.236207] [14136] 501 14136 107021  17  149  4 17152    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.241384] [14141] 501 14141 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.246511] [14145] 501 14145 107278  928  150  3 16478    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.251493] [14171] 501 14171 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.257445] [14175] 501 14175 106680  4726  145  3 12126    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.262515] [14179] 501 14179 106394  5093  144  4 11479    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.267307] [14182] 501 14182 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.272187] [14187] 501 14187 106397  6416  146  3 10136    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.277067] [14191] 501 14191 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.282002] [14195] 501 14195 106218  4022  146  3 12348    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.287346] [14199] 501 14199 106072  6103  148  3 10142    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.292576] [14205] 501 14205 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.297652] [14208] 501 14208 105941  7965  146  3  8150    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.302522] [14213] 501 14213 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.307727] [14215] 501 14215 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.313074] [14218] 501 14218 106857 12307  146  3  4547    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.317977] [14221] 501 14221 105659  9303  143  4  6486    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.322666] [14224] 501 14224 105136 10941  146  3  4292    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.327764] [14225] 501 14225 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.333212] [14226] 501 14226 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.338541] [14227] 501 14227 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.343450] [14230] 501 14230 104049  9848  139  3  4315    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.348530] [14231] 501 14231 91525  259  117  3  1141    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.353693] [14233] 501 14233 104752 10345  142  4  4562    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.358841] [14234] 501 14234 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.364203] [14235] 501 14235 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.369257] [14236] 501 14236 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.374474] [14240] 501 14240 103856  9789  140  3  4155    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.379243] [14241] 501 14241 91525  607  120  4  727    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.384435] [14242] 501 14242 104753 10925  141  4  3897    0 php 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.389379] [14272] 501 14272 36683  3  28  3  177    0 crond 
Mar 3 12:40:14 ip-172-31-31-176 kernel: [55107.394313] [14273] 501 14273 36683  3  28  3  177    0 crond

來源

2016-03-03 Brian B

你有一個運行PHP腳本的crontab嗎？ – Renan

是的，有3個腳本按照magento2的要求每分鐘運行一次。 –

-2

您可以嘗試添加多個實例並嘗試使用負載平衡。

來源

2016-03-04 02:51:19 prajosh

如果是無法使用的硬件，我寧願升級到更大的VPS。 –

我會說，t2.micro沒有必要的計算能力用於Magento。看起來你的cron腳本花費的時間太長，而cron最終會啓動更多的腳本，直到oom-killer必須啓動。

我會先檢查EC2監控中的CPU信用，看看你是否沒有耗盡他們。如果你有，你可能會想切換到t2.small或更大（這不是免費的）。

來源

2016-03-04 14:02:49 Renan

我將鏈接複製到下面的監控圖中。它顯示我的信用高達1.44然後下降，因爲我認爲OOM開始。 [EC2監控圖]（https://us-west-2.console.aws.amazon.com/cloudwatch/home？區域= US-西-2＃指標：圖表=〜（度量〜（〜（〜 'AWS * 2fEC2〜' CPUCreditUsage〜 'INSTANCEID〜' I-79c04dbe））〜期間〜3600〜STAT〜 '最大_起始_' -P1D〜end〜'P0D〜yAxis〜（left〜null〜right〜null）〜region〜'us-west-2）） –

你能發表一個截圖嗎？此鏈接似乎適用於您自己的AWS控制檯。但是，如果您的CPU信用值大約爲零，這意味着您需要的CPU數量比您目前的CPU數量多。 T2類實例一直沒有100％的CPU可用，只有當你有學分時。你可以在這裏閱讀更多關於它的信息：http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/t2-instances.html – Renan

AWS EC2實例夜間崩潰....只運行Magento

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