java在Google App Engine上部署webapp時調用了oom-killer

Question

我想將一個webapp部署到App Engine。這個webapp包含幾個啓動一些Google Dataflow作業的servlet。

我沒有問題在本地運行我的webapp（mvn jetty：run）並啓動調用我的servlet的數據流作業。但我很努力在App Engine中部署webapp。

的錯誤信息是：

A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.506921] java invoked oom-killer: gfp_mask=0xd0, order=0, oom_score_adj=0 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.514328] java cpuset=b888170c5457fc14d6375c3a890ae140db7e7c0103fc3f400fed0177bce46b2c mems_allowed=0 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.524285] CPU: 0 PID: 4159 Comm: java Tainted: G   C 3.16.0-4-amd64 #1 Debian 3.16.39-1 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.533382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.542888] 0000000000000000 ffffffff81514c11 ffff88003cd263d0 ffff88002ee41400 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.550958] ffffffff815127e9 ffff88003cd268e8 0000000100000000 ffff88003d5d4800 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.558957] ffff88003cd263d0 ffff88003fc12f40 ffff88003c76b080 ffff88003d5d4800 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.567115] Call Trace: 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.569688] [<ffffffff81514c11>] ? dump_stack+0x5d/0x78 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.575112] [<ffffffff815127e9>] ? dump_header+0x76/0x1e8 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.580812] [<ffffffff8114243d>] ? find_lock_task_mm+0x3d/0x90 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.586929] [<ffffffff8114287d>] ? oom_kill_process+0x21d/0x370 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.593048] [<ffffffff8114243d>] ? find_lock_task_mm+0x3d/0x90 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.599254] [<ffffffff811a292a>] ? mem_cgroup_oom_synchronize+0x52a/0x590 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.606417] [<ffffffff811a1eb0>] ? mem_cgroup_try_charge_mm+0xa0/0xa0 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.613333] [<ffffffff81143030>] ? pagefault_out_of_memory+0x10/0x80 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.619886] [<ffffffff81058515>] ? __do_page_fault+0x3c5/0x4f0 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.626010] [<ffffffff81173bbf>] ? mprotect_fixup+0x14f/0x270 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.631985] [<ffffffff8151cde8>] ? page_fault+0x28/0x30 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.637757] Task in /b888170c5457fc14d6375c3a890ae140db7e7c0103fc3f400fed0177bce46b2c killed as a result of limit of /b888170c5457fc14d6375c3a890ae140db7e7c0103fc3f400fed0177bce46b2c 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.654851] memory: usage 629760kB, limit 629760kB, failcnt 7625 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.660978] memory+swap: usage 0kB, limit 18014398509481983kB, failcnt 0 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.667813] kmem: usage 0kB, limit 18014398509481983kB, failcnt 0 
A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.674120] Memory cgroup stats for /b888170c5457fc14d6375c3a890ae140db7e7c0103fc3f400fed0177bce46b2c: cache:24KB rss:629736KB rss_huge:0KB mapped_file:0KB writeback:0KB inactive_anon:0KB active_anon:629760KB inactive_file:0KB active_file:0KB unevictable:0KB 
A Feb 27 19:16:07 aef-default-version20-xpjd kernel: [ 50.561039] [ pid ] uid tgid total_vm  rss nr_ptes swapents oom_score_adj name 
A Feb 27 19:16:07 aef-default-version20-xpjd kernel: [ 50.569102] [ 3912] 999 3912 746739 158540  567  0    0 java 
A Feb 27 19:16:07 aef-default-version20-xpjd kernel: [ 50.577122] Memory cgroup out of memory: Kill process 3912 (java) score 1010 or sacrifice child 
A Feb 27 19:16:07 aef-default-version20-xpjd kernel: [ 50.585961] Killed process 3912 (java) total-vm:2986956kB, anon-rss:627524kB, file-rss:6636kB 

的問題是可能的內存此限制（？）：

A Feb 28 09:26:05 aef-default-version22-rh34 kernel: [ 47.654851] memory: usage 629760kB, limit 629760kB, failcnt 7625 

你知道哪個記憶是什麼呢？它是否包含我需要運行填充超過629760kB內存的數據流管道的所有依賴關係的war文件？你有什麼想法在哪裏看？

Answer 1

是的，它看起來像你的應用程序需要比默認的0.6 GB的內存或更多，您需要在您的Resource settings配置更多的內存：

memory_gb

在GB RAM。請求的內存爲您的應用程序。每個CPU內核 需要0.9到6.5 GB的總內存，其中包括〜0.4 GB，用於某些進程的開銷（可能會發生變化）。至 計算請求的內存：memory_gb = NUM​​BER_CPU_CORES * [0.9 - 6.5] - 0.4。對於上面指定2個內核的示例，您可以請求1.4到12.6 GB。應用程序可用的內存總量 由運行時環境設置爲 環境變量GAE_MEMORY_MB。