Re: [nodejs] Re: Writing to closed connection = Boom!
I missed the 'writable' property. That's a big help. Thanks very much for your help! > What about listening for the 'error' event and/or checking if the > 'writable' property of the socket is set to false? > > > -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
Re: [nodejs] Re: Writing to closed connection = Boom!
On Sat, Apr 21, 2012 at 06:11:08AM -0700, P. Douglas Reeder wrote:
> In addition to dealing with this directly, make sure you have an
> uncaught exception handler:
>
> process.on('uncaughtException', function (err) {
> console.error("caught by event loop: ", err.stack);
> });
Don't do that. When this event fires, you should clean up everything that needs
to be cleaned up and exit. Just printing the error and going on is not a good
idea because your program might be in an inconsistent state. For example, look
at this piece of code:
user.firstname = uppercaseFirst(options.firstname)
user.lastname = uppercaseFirst(options.lastname)
However, options.lastname unfortunately is null for some weird reason and
uppercaseFirst crashes. Now, this users first name was changed but his last
name is unaltered. You don't want to go on working with data like that.
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[nodejs] Re: Writing to closed connection = Boom!
In addition to dealing with this directly, make sure you have an
uncaught exception handler:
process.on('uncaughtException', function (err) {
console.error("caught by event loop: ", err.stack);
});
On Apr 20, 6:43 pm, steven loe wrote:
> Node thinks the connection is still open. When node tries to write to that
> connection, node crashes.
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[nodejs] Re: Writing to closed connection = Boom!
On Apr 20, 7:10 pm, mscdex wrote: > On Apr 20, 6:43 pm, steven loe wrote: > > > However, if the network were to have a problem (for instance someone > > unplugs and replugs an ethernet cable on the client computer). The socket > > connection is broken, but the server does not get an 'end' 'close' or other > > event that I can see. > > What about listening for the 'error' event and/or checking if the > 'writable' property of the socket is set to false? Additionally, you may want to think about sending some kind of heartbeat/ping message every so often. -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
[nodejs] Re: Writing to closed connection = Boom!
On Apr 20, 6:43 pm, steven loe wrote: > However, if the network were to have a problem (for instance someone > unplugs and replugs an ethernet cable on the client computer). The socket > connection is broken, but the server does not get an 'end' 'close' or other > event that I can see. What about listening for the 'error' event and/or checking if the 'writable' property of the socket is set to false? -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
