Memory exception - JavaScript heap out of memory #517
Description
Hello all,
I am running maildev 2.1.0 on rocky linux 9. I've setup multiple services for multiple environments and I store mails for each environment in their own directory. Today I was having issue with one of the environments..
There were ~1250 mails in the directory. When I opened web interface mails didn't want to load and I was getting error 500 on /email url if I remember correctly. There was enough free RAM and enough disk space.
The error in journalctl was
Feb 27 11:27:19 server.domain.com systemd[1]: maildev-staging.service: Consumed 27.436s CPU time.
Feb 27 11:27:19 server.domain.com systemd[1]: Started MailDev (staging environment).
Feb 27 11:27:20 server.domain.com maildev[23091]: MailDev using directory /var/maildev/staging
Feb 27 11:27:20 server.domain.com maildev[23091]: MailDev webapp running at http://0.0.0.0:8402/
Feb 27 11:27:20 server.domain.com maildev[23091]: MailDev SMTP Server running at 0.0.0.0:18402
Feb 27 11:27:40 server.domain.com maildev[23091]: <--- Last few GCs --->
Feb 27 11:27:40 server.domain.com maildev[23091]: [23091:0x55872cc7e250] 20327 ms: Mark-sweep (reduce) 1827.6 (1861.5) -> 1827.3 (1862.2) MB, 133.8 / 0.0 ms (+ 234.7 ms in 46 steps since start of marking, biggest step 15.0 ms, wallt>
Feb 27 11:27:40 server.domain.com maildev[23091]: <--- JS stacktrace --->
Feb 27 11:27:40 server.domain.com maildev[23091]: FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory
Feb 27 11:27:40 server.domain.com maildev[23091]: 1: 0x7f5d1a10e19c node::Abort() [/lib64/libnode.so.93]
Feb 27 11:27:40 server.domain.com maildev[23091]: 2: 0x7f5d19e555d6 node::OOMErrorHandler(char const*, bool) [/lib64/libnode.so.93]
Feb 27 11:27:40 server.domain.com maildev[23091]: 3: 0x7f5d1a720964 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [/lib64/libnode.so.93]
Feb 27 11:27:40 server.domain.com maildev[23091]: 4: 0x7f5d1a720c22 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [/lib64/libnode.so.93]
Feb 27 11:27:40 server.domain.com maildev[23091]: 5: 0x7f5d1a8bb7f9 [/lib64/libnode.so.93]
Feb 27 11:27:40 server.domain.com maildev[23091]: 6: 0x7f5d1a8d4d46 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [/lib64/libnode.so.93]
Feb 27 11:27:40 server.domain.com maildev[23091]: 7: 0x7f5d1a8d6fda v8::internal::Heap::AllocateRawWithLightRetrySlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/lib64/lib>
Feb 27 11:27:40 server.domain.com maildev[23091]: 8: 0x7f5d1a8d705b v8::internal::Heap::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/lib64/li>
Feb 27 11:27:40 server.domain.com maildev[23091]: 9: 0x7f5d1a89dad0 v8::internal::Factory::AllocateRaw(int, v8::internal::AllocationType, v8::internal::AllocationAlignment) [/lib64/libnode.so.93]
Feb 27 11:27:40 server.domain.com maildev[23091]: 10: 0x7f5d1a897238 v8::internal::FactoryBase<v8::internal::Factory>::AllocateRawWithImmortalMap(int, v8::internal::AllocationType, v8::internal::Map, v8::internal::AllocationAlignment) [>
Feb 27 11:27:40 server.domain.com maildev[23091]: 11: 0x7f5d1a898f47 v8::internal::FactoryBase<v8::internal::Factory>::NewRawOneByteString(int, v8::internal::AllocationType) [/lib64/libnode.so.93]
Feb 27 11:27:40 server.domain.com maildev[23091]: 12: 0x7f5d1abe3c57 v8::internal::Runtime_StringBuilderConcat(int, unsigned long*, v8::internal::Isolate*) [/lib64/libnode.so.93]
Feb 27 11:27:40 server.domain.com maildev[23091]: 13: 0x7f5d1a378eb9 [/lib64/libnode.so.93]
And this is second type of error I found
Feb 27 11:27:40 server.domain.com systemd[1]: Started MailDev (staging environment).
Feb 27 11:27:41 server.domain.com maildev[23107]: MailDev using directory /var/maildev/staging
Feb 27 11:27:41 server.domain.com maildev[23107]: MailDev webapp running at http://0.0.0.0:8402/
Feb 27 11:27:41 server.domain.com maildev[23107]: MailDev SMTP Server running at 0.0.0.0:18402
Feb 27 11:29:10 server.domain.com maildev[23107]: RangeError: Invalid string length
Feb 27 11:29:10 server.domain.com maildev[23107]: at JSON.stringify (<anonymous>)
Feb 27 11:29:10 server.domain.com maildev[23107]: at stringify (/usr/local/lib/node_modules/maildev/node_modules/express/lib/response.js:1160:12)
Feb 27 11:29:10 server.domain.com maildev[23107]: at ServerResponse.json (/usr/local/lib/node_modules/maildev/node_modules/express/lib/response.js:271:14)
Feb 27 11:29:10 server.domain.com maildev[23107]: at /usr/local/lib/node_modules/maildev/lib/routes.js:22:13
Feb 27 11:29:10 server.domain.com maildev[23107]: at Object.mailServer.getAllEmail (/usr/local/lib/node_modules/maildev/lib/mailserver.js:419:3)
Feb 27 11:29:10 server.domain.com maildev[23107]: at /usr/local/lib/node_modules/maildev/lib/routes.js:18:16
Feb 27 11:29:10 server.domain.com maildev[23107]: at Layer.handle [as handle_request] (/usr/local/lib/node_modules/maildev/node_modules/express/lib/router/layer.js:95:5)
Feb 27 11:29:10 server.domain.com maildev[23107]: at next (/usr/local/lib/node_modules/maildev/node_modules/express/lib/router/route.js:149:13)
Feb 27 11:29:10 server.domain.com maildev[23107]: at compression (/usr/local/lib/node_modules/maildev/node_modules/compression/index.js:215:5)
Feb 27 11:29:10 server.domain.com maildev[23107]: at Layer.handle [as handle_request] (/usr/local/lib/node_modules/maildev/node_modules/express/lib/router/layer.js:95:5)
Feb 27 11:29:14 server.domain.com maildev[23107]: RangeError: Invalid string length
Feb 27 11:29:14 server.domain.com maildev[23107]: at JSON.stringify (<anonymous>)
Feb 27 11:29:14 server.domain.com maildev[23107]: at stringify (/usr/local/lib/node_modules/maildev/node_modules/express/lib/response.js:1160:12)
Feb 27 11:29:14 server.domain.com maildev[23107]: at ServerResponse.json (/usr/local/lib/node_modules/maildev/node_modules/express/lib/response.js:271:14)
Feb 27 11:29:14 server.domain.com maildev[23107]: at /usr/local/lib/node_modules/maildev/lib/routes.js:22:13
Feb 27 11:29:14 server.domain.com maildev[23107]: at Object.mailServer.getAllEmail (/usr/local/lib/node_modules/maildev/lib/mailserver.js:419:3)
Feb 27 11:29:14 server.domain.com maildev[23107]: at /usr/local/lib/node_modules/maildev/lib/routes.js:18:16
Feb 27 11:29:14 server.domain.com maildev[23107]: at Layer.handle [as handle_request] (/usr/local/lib/node_modules/maildev/node_modules/express/lib/router/layer.js:95:5)
Feb 27 11:29:14 server.domain.com maildev[23107]: at next (/usr/local/lib/node_modules/maildev/node_modules/express/lib/router/route.js:149:13)
Feb 27 11:29:14 server.domain.com maildev[23107]: at compression (/usr/local/lib/node_modules/maildev/node_modules/compression/index.js:215:5)
Feb 27 11:29:14 server.domain.com maildev[23107]: at Layer.handle [as handle_request] (/usr/local/lib/node_modules/maildev/node_modules/express/lib/router/layer.js:95:5)
Anyway I couldn't get it to work until I deleted all mails stored on the file system. Is this some kind of bug?