在node.js中写入ECONNRESET错误和套接字连接检查

Question

I get this error occasionally when running my node.js script.

events.js:66
        throw arguments[1]; // Unhandled 'error' event
                       ^
Error: write ECONNRESET
    at errnoException (net.js:768:11)
    at Object.afterWrite (net.js:592:19)

What causes this error? I read someplace that this is caused due to attempting to write data to a closed socket. Is that right?

If that is the case, How do I check if a socket connection is active? I found this SO question here , but no one had answered there.

And thirdly, is a simple try catch around the socket.write statement, enough to handle this error? Or does it emit error events which I must handle?

Answer 1

we've seen it with http-proxy and the issue was reported here: https://github.com/nodejitsu/node-http-proxy/issues/331

nodejs would throw if there "error" (and only "error") event is not handled.