Node js ECONNRESET

manpreet Best Answer 2 years ago

I m running an Express js application with socket.io for a chat webapp and I get the following error randomly around 5 times during 24h. The node process is wrapped in forever and it restarts itself immediately.

Problem is that restarting express kicks my users out of their rooms and nobody wants that.

The web server is proxied by HAProxy. There are no socket stability issues, just using websockets and flashsockets transports. I cannot reproduce this on https://forum.tuteehub.com/tag/purpose">purpose.

This is the error with node v0.10.11:

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: read ECONNRESET     //alternatively it s a 'write'
    at errnoException (net.js:900:11)
    at TCP.onread (net.js:555:19)
error: Forever detected https://forum.tuteehub.com/tag/script">script exited with code: 8
error: Forever restarting https://forum.tuteehub.com/tag/script">script for 2 time

EDIT (2013-07-22)

Added both socket.io client error handler and the uncaught https://forum.tuteehub.com/tag/exception">exception handler. Seems that this one catches the error:

process.on('uncaughtException', function (err) {
  console.error(err.stack);
  console.log("Node NOT Exiting...");
});

So I suspect it's not a socket.io issue but an http request to another server that I do or a mysql/redis connection. Problem is that the error stack doesn't help me identify my code issue. Here is the log output:

Error: read ECONNRESET
    at errnoException (net.js:900:11)
    at TCP.onread (net.js:555:19)

How do I know what causes this? How do I get more out of the error?

Ok, not very verbose but here s the stacktrace with "longjohn":

Exception caught: Error ECONNRESET
{ [Error: read ECONNRESET]
  code: 'ECONNRESET',
  errno: 'ECONNRESET',
  syscall: 'read',
  __cached_trace__:
   [ { receiver: [Object],
       fun: [Function: errnoException],
       pos: 22930 },
     { receiver: [Object], fun: [Function: onread], pos: 14545 },
     {},
     { receiver: [Object],
       fun: [Function: fireErrorCallbacks],
       pos: 11672 },
     { receiver: [Object], fun: [Function], pos: 12329 },
     { receiver: [Object], fun: [Function: onread], pos: 
                                                

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