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High CPU usage when using ProxyCommand #1080

mgedmin opened this Issue Feb 27, 2014 · 3 comments


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mgedmin commented Feb 27, 2014

It looks like the fix for the ProxyCommand hang on Fabric's exit has a side effect: Fabric now reliably eats 100% CPU after it runs a command on a host that needs ProxyCommand. This CPU usage continues until Fabric exits, even if you're not going to run any commands on this host.

I confirm, same bug for me, mostly visible on scp/put.
Is it related to #312 ?


bitprophet commented Nov 6, 2014

This is probably paramiko/paramiko#414 in action - once it's merged there and released, updating Paramiko should hopefully fix it. Please follow that ticket, thanks!

@bitprophet bitprophet closed this Nov 6, 2014


bitprophet commented Dec 18, 2014

Just merged to Paramiko, FWIW. Will be out in the 1.13.x and newer lines.

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