SSH tunneling hangs with many connections

Posted by middleofdreams on Server Fault See other posts from Server Fault or by middleofdreams
Published on 2012-06-22T08:31:58Z Indexed on 2012/06/22 9:17 UTC
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ssh

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ssh-tunnel

I am forced to use SSH tunneling to access many servers (over 100) via one gateway server. To keep connection alive I am using autossh. Everything works pretty well until there is high traffic (people are connecting to most of the servers at once). then ssh process reaches 12% of cpu (which is configured maximum for separate process) and no connection is working anymore - i have to restart autossh script. What could be the possible reason for that?

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