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How to prevent total unavailability due Unable to fork [message #51204] Fri, 07 March 2014 22:09 Go to previous message
postcd is currently offline  postcd
Messages: 73
Registered: April 2013
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Cannot allocate memory: Unable to fork..

I mean some VM has high memory usage and it get totally locked so admin cant do commands in it, user cant login SSH, but websites working....

How can vps node admin can prevent this to happen allowing user to know what is happening with his VPS, or how to ensure user is able to use SSH?

Im not sure why this Unable to fork message appears. I thought it should be that load decrease and VPS becomes accessible, but it appears that this message is definite and VM must be manually restarted which makes customers unhappy. DOes XEN have same issues with inaccessibility and need restart?

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