java在Google App Engine上部署webapp时调用了oom-killer

Question

我想将一个webapp部署到App Engine。这个webapp包含几个启动一些Google Dataflow作业的servlet。

我没有问题在本地运行我的webapp（mvn jetty：run）并启动调用我的servlet的数据流作业。但我很努力在App Engine中部署webapp。

的错误信息是：

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 

的问题是可能的内存此限制（？）：

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

你知道哪个记忆是什么呢？它是否包含我需要运行填充超过629760kB内存的数据流管道的所有依赖关系的war文件？你有什么想法在哪里看？

Answer 1

是的，它看起来像你的应用程序需要比默认的0.6 GB的内存或更多，您需要在您的Resource settings配置更多的内存：

memory_gb

在GB RAM。请求的内存为您的应用程序。每个CPU内核 需要0.9到6.5 GB的总内存，其中包括〜0.4 GB，用于某些进程的开销（可能会发生变化）。至 计算请求的内存：memory_gb = NUM​​BER_CPU_CORES * [0.9 - 6.5] - 0.4。对于上面指定2个内核的示例，您可以请求1.4到12.6 GB。应用程序可用的内存总量 由运行时环境设置为 环境变量GAE_MEMORY_MB。