崩溃后PM2自动重启

时间:2018-12-17 12:59:07

标签: node.js startup pm2 startupscript

我有一些带有少量RAM的DigitalOcean小滴,但是我应该在那里托管许多pm2进程(更准确地说,是9-8(在群集模式下(提供-i 0))和1(在fork中)模式)。这些进程是NodeJS Express服务器,它们为React.js项目执行服务器端渲染。

因此,正如预期的那样,有时pm2因没有足够的RAM而崩溃,并且崩溃后,尽管启用了启动守护程序,但显然无法还原所有进程。

我知道,启动守护进程仅在系统启动时起作用,因此,现在每次pm2崩溃时,我都应该手动转到Droplet并在其上重新启动系统。

是否有任何变通办法可以自动执行此过程?或者,也许存在一些在pm2启动时可以工作的pm2守护程序?

感谢任何帮助!
预先感谢!


更新

这是最后一个崩溃日志(与手动崩溃有关的部分):

<--- Last few GCs --->

[11194:0x3184710] 38854201 ms: Scavenge 24.7 (28.2) -> 23.8 (28.2) MB, 0.5 / 0.0 ms  allocation failure
[11194:0x3184710] 38888980 ms: Scavenge 24.8 (28.2) -> 23.9 (28.7) MB, 0.7 / 0.0 ms  allocation failure
[11194:0x3184710] 39006864 ms: Scavenge 24.8 (28.7) -> 23.9 (28.7) MB, 0.7 / 0.0 ms  allocation failure
[11194:0x3184710] 39131478 ms: Scavenge 24.8 (28.7) -> 23.9 (28.7) MB, 0.4 / 0.0 ms  allocation failure


<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0xa90e93a5879 <JSObject>
    0: builtin exit frame: parse(this=0xa90e93890a9 <Object map = 0x188eb7f82ba1>,0x33a45597fe41 <String[338]: {"type":"axm:monitor","data":{"Loop delay":{"value":"0.81ms","ag$

FATAL ERROR: Committing semi space failed. Allocation failed - process out of memory
1: node::Abort() [node /home/<private path>/frontend/dist-server/server.bundle.js]
2: 0x8c20ec [node /home/<private path>/frontend/dist-server/server.bundle.js]
3: v8::Utils::ReportOOMFailure(char const*, bool) [node /home/<private path>/frontend/dist-server/server.bundle.js]
4: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [node /home/<private path>/frontend/dist-server/server.bundle.js]
5: v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags) [node /home/<private path>/frontend/dist-server/server.bundle$
6: v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [node /home/<private path>/fronte$
7: v8::internal::Factory::NewJSObject(v8::internal::Handle<v8::internal::JSFunction>, v8::internal::PretenureFlag) [node /home/<private path>/frontend/dist-server$
8: v8::internal::JsonParser<true>::ParseJsonObject() [node /home/<private path>/frontend/dist-server/server.bundle.js]
9: v8::internal::JsonParser<true>::ParseJsonValue() [node /home/<private path>/frontend/dist-server/server.bundle.js]
10: v8::internal::JsonParser<true>::ParseJson() [node /home/<private path>/frontend/dist-server/server.bundle.js]
11: v8::internal::Builtin_JsonParse(int, v8::internal::Object**, v8::internal::Isolate*) [node /home/<private path>/frontend/dist-server/server.bundle.js]
12: 0x1d7ee3e8697d

1 个答案:

答案 0 :(得分:1)

将PM2连接到PM2+,以便将PM2链接到PM2 +的代理将充当第二看门狗。如果主PM2崩溃,则PM2 +代理将使用先前的进程列表重新生成PM2

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