FTP Connect Error 500 Again

[WxLee]

Found this morning:

10/11/2016 2:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 2:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 2:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 2:15:02 AM : FTP Connect Timeout
10/11/2016 2:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 2:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 2:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 2:30:02 AM : FTP Connect Timeout
10/11/2016 2:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 2:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 2:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 2:45:02 AM : FTP Connect Timeout
10/11/2016 3:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:00:02 AM : FTP Connect Timeout
10/11/2016 3:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:15:02 AM : FTP Connect Timeout
10/11/2016 3:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:30:02 AM : FTP Connect Error, Error code = 500
10/11/2016 3:30:02 AM : FTP Connect Timeout
10/11/2016 3:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 3:45:02 AM : FTP Connect Error, Error code = 500
10/11/2016 3:45:02 AM : FTP Connect Timeout
10/11/2016 4:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 4:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 4:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 4:00:02 AM : FTP Connect Timeout
10/11/2016 4:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 4:15:02 AM : FTP Connect Error, Error code = 500
10/11/2016 4:15:02 AM : FTP Connect Error, Error code = 500
10/11/2016 4:15:02 AM : FTP Connect Timeout
10/11/2016 4:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 4:45:02 AM : FTP Connect Error, Error code = 500
10/11/2016 4:45:02 AM : FTP Connect Error, Error code = 500
10/11/2016 4:45:02 AM : FTP Connect Timeout
10/11/2016 5:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 5:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 5:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 5:00:02 AM : FTP Connect Timeout
10/11/2016 5:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 5:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 5:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 5:15:01 AM : FTP Connect Timeout
10/11/2016 5:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 5:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 5:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 5:30:01 AM : FTP Connect Timeout
10/11/2016 5:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 5:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 5:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 5:45:01 AM : FTP Connect Timeout
10/11/2016 6:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 6:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 6:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 6:00:02 AM : FTP Connect Timeout
10/11/2016 6:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 6:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 6:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 6:15:02 AM : FTP Connect Timeout
10/11/2016 6:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 6:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 6:30:02 AM : FTP Connect Error, Error code = 500
10/11/2016 6:30:02 AM : FTP Connect Timeout
10/11/2016 6:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 6:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 6:45:02 AM : FTP Connect Error, Error code = 500
10/11/2016 6:45:02 AM : FTP Connect Timeout
10/11/2016 7:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 7:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 7:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 7:00:02 AM : FTP Connect Timeout
10/11/2016 7:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 7:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 7:15:02 AM : FTP Connect Error, Error code = 500
10/11/2016 7:15:02 AM : FTP Connect Timeout
10/11/2016 7:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 7:30:02 AM : FTP Connect Error, Error code = 500
10/11/2016 7:30:02 AM : FTP Connect Error, Error code = 500
10/11/2016 7:30:02 AM : FTP Connect Timeout
10/11/2016 7:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 7:45:02 AM : FTP Connect Error, Error code = 500
10/11/2016 7:45:02 AM : FTP Connect Error, Error code = 500
10/11/2016 7:45:02 AM : FTP Connect Timeout
10/11/2016 8:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 8:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 8:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 8:15:01 AM : FTP Connect Timeout
10/11/2016 8:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 8:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 8:30:01 AM : FTP Connect Error, Error code = 500
10/11/2016 8:30:02 AM : FTP Connect Timeout
10/11/2016 8:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 8:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 8:45:02 AM : FTP Connect Error, Error code = 500
10/11/2016 8:45:02 AM : FTP Connect Timeout
10/11/2016 9:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 9:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 9:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 9:00:02 AM : FTP Connect Timeout
10/11/2016 9:15:01 AM : FTP Connect Error, Error code = 500
10/11/2016 9:15:02 AM : FTP Connect Error, Error code = 500
10/11/2016 9:15:02 AM : FTP Connect Error, Error code = 500
10/11/2016 9:15:02 AM : FTP Connect Timeout
10/11/2016 9:30:02 AM : FTP Connect Error, Error code = 500
10/11/2016 9:30:02 AM : FTP Connect Error, Error code = 500
10/11/2016 9:30:02 AM : FTP Connect Error, Error code = 500
10/11/2016 9:30:02 AM : FTP Connect Timeout
10/11/2016 9:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 9:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 9:45:01 AM : FTP Connect Error, Error code = 500
10/11/2016 9:45:02 AM : FTP Connect Timeout
10/11/2016 10:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 10:00:01 AM : FTP Connect Error, Error code = 500
10/11/2016 10:00:02 AM : FTP Connect Error, Error code = 500
10/11/2016 10:00:02 AM : FTP Connect Timeout

[steve]

I've deleted the zero-length file and it's started uploading again. I don't really understand why the zero-length file causes a connect error, nor why it seems to happen to you in particular.

If someone can suggest a command I can run as a cron job to look for and delete the zero-length file periodically, I'd be happy to implement it.

[rogerthn]

Assuming Linux

Code: Select all

find -size 0 -exec rm -f {} \;

[steve]

Just to make sure it doesn't trample on a file currently being uploaded, would adding -mmin +1 to make sure it's at least a minute old work? And the crontab entry to do this for all of the directories under home, every 10 minutes would be:

Code: Select all

*/10 * * * * find /home -size 0 -mmin +1 -exec rm -f {} \;

Yes?

[rogerthn]

Looks OK
You could start with

Code: Select all

*/10 * * * * find /home -size 0 -mmin +1 -exec ls -l {} \; >> /tmp/list0files.log 2>&1

and once you're happy

Code: Select all

*/10 * * * * find /home -size 0 -mmin +1 -exec rm -fv {} \; >> /tmp/remove0files.log 2>&1

[steve]

Thanks, I'll give it a try.

[steve]

I added "-name *.?*tmp" to just catch the tmp files that Cumulus creates. Seems to work fine - thanks for your help.

[WxLee]

Thanks for looking into this. It seems to be working OK again.

[steve]

Hopefully when it happens again, it will sort itself out within 10 minutes or so.

[WxLee]

That should be reflected in the Error log, so I'll keep an eye on it and let you know if I see it. Thanks again!

[rogerthn]

I added "-name *.?*tmp" to just catch the tmp files that Cumulus creates. Seems to work fine - thanks for your help.

OK
NP

[mcrossley]

I've deleted the zero-length file and it's started uploading again. I don't really understand why the zero-length file causes a connect error

I think Cumulus starts a new session after each error, and runs into the server max. sessions per IP limit. Stopping Cumulus for 5 mins (or so) clears the error presumably as the sessions time out on the server, but if the zero length file is still there the error soon comes back.

[steve]

Yes, that sounds reasonable - the failure causes the connection to be broken, so MX reconnects, but the server still regards the connection as valid until it times out.

[WxLee]

I can't get my website to open at all....endlessly tries. Is your server down?

[mcrossley]

My site is working OK - same server.