[Gluster-users] NFS client blocking reboot

haiwei.xie-soulinfo haiwei.xie at soulinfo.com
Thu Jul 25 13:22:20 UTC 2013

On Thu, 25 Jul 2013 14:52:19 +0200
Marcus Bointon <marcus at synchromedia.co.uk> wrote:

> This is a silly chicken-and-egg problem. I've found when I issue a reboot on a server that's mounted its own gluster volume via NFS (with the 'hard' option set), it stops gluster before unmounting volumes. This causes the NFS client to hang waiting for a response from the gluster server (which will never happen because it's stopped), blocking the reboot, leaving the server hanging indefinitely. The only way out seems to be to power-cycle the server.
> How is this supposed to work? Is there some way of scheduling unmounts before killing gluster?
> Marcus
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It's interesting. My experience, if you mount nfs on other computer, poweroff gluster node, your nfs client will hang too.

It looks like bug of gluster native nfs server. Maybe some masters can explain the reason. 

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