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ExecuteCommand throws error 110 under stress

Posted: 03/28/2013 09:02:40
by Ken Ivanov (Team)

Not to expose your e-mail address in the public forum, I've answered in your Helpdesk ticket.
Posted: 04/04/2013 11:28:45
by Michael Lovett (Standard support level)
Joined: 03/20/2013
Posts: 28

It turns out that raising the MaxStartups parameter of my OpenSSH daemon (on the host my stress program was connecting to) solved the problem.

Relevant text from the man page: "Specifies the maximum number of concurrent unauthenticated connections to the SSH daemon. Additional connections will be dropped until authentication succeeds.."

So the short interpretation of this is that if your code manages to create a lot of connections at the same time (which haven't yet gotten to the point of completing authentication) you can exceed MaxStartups and have future connections be dropped by the SSH daemon.

I still don't know why I'm not seeing this same problem during other kinds of stress testing (such as stress testing of UploadFile(), etc), which also have to connect and authenticate, but my guess is that it's coming down to timing..



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