PM2在崩溃后自动重新启动

Question

我有一些带有少量内存的DigitalOcean droplet，但我应该托管很多pm2进程(更准确地说，集群模式下有9-8个进程(使用提供的-i 0)，分叉模式下有1个进程)。这些进程是为React.js项目执行服务器端呈现的NodeJS Express服务器。

因此，正如预期的那样，有时pm2会因为内存不足而崩溃，并且在崩溃之后，尽管启用了启动守护进程，但显然无法恢复所有进程。

我知道，启动守护程序只在系统启动时起作用，所以现在每次当pm2崩溃时，我都应该手动转到droplet并在它上面重新启动系统。

有没有什么变通办法让这个过程自动化呢？或者，可能存在一些在pm2启动时工作的pm2守护进程？

感谢您的帮助！

提前感谢！

更新

这是最后的崩溃日志(与手动崩溃相关的部分)：

<--- 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

Answer 1

将PM2连接到PM2+，以便将PM2链接到PM2+的代理将充当第二个监视器。如果主PM2崩溃，PM2+代理将使用上一个进程列表重新生成PM2