[Xen-users] Any tips on dealing with a super hung XAPI process?

[Jason Davis <scr512@xxxxxxxxx>]

One of the cluster nodes (XS 5.6 SP2/not master) became unresponsive to XAPI calls being sent from a CloudStack management server. In the past, a simple xe-toolstack-restart would do the trick but the script timed out while restarting the XAPI daemon.

I found the process and first tried to use a simple kill command but the process was in a "defunct" state. I tried a kill -9 but no joy. 

I then found the xapi.pid and manually deleted it and then tried to run xe-toolstack-restart. Unfortunately this did not work and ultimately I had to reboot the cluster node.

So... any other ideas on killing a zombie XAPI process? I've like to avoid rebooting a host :)

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