Bug 765437 - (GLUSTER-3705) [FEAT] Use uuid in volume info file for servers instead of hostname or ip address
[FEAT] Use uuid in volume info file for servers instead of hostname or ip add...
Status: ASSIGNED
Product: GlusterFS
Classification: Community
Component: glusterd (Show other bugs)
3.7.6
All Linux
medium Severity low
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Assigned To: bugs@gluster.org
: FutureFeature, Reopened, Triaged
Depends On:
Blocks:
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Reported: 2011-10-05 14:39 EDT by Joe Julian
Modified: 2016-04-19 03:55 EDT (History)
9 users (show)

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Doc Type: Enhancement
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Last Closed: 2015-10-22 11:46:38 EDT
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RHEL 7.3 requirements from Atomic Host:


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Description Joe Julian 2011-10-05 14:39:50 EDT
In the volume info file, if the servers were referenced by uuid if the hostnames or ip addresses of the hosts change, the bricks would still reference the correct machine.

In the IRC channel today, we had someone whose network had been renumbered. He had created his volumes using IP addresses instead of hostnames. He was able to peer probe which changed the host information to accurately reflect the new ip addresses, but the volumes still pointed at the old addresses. They could not run replace-brick to update the addresses of their bricks.

If the bricks were referenced by host uuid, the peer probe would have allowed the bricks to resolve to the new information without further changes.
Comment 1 Kaleb KEITHLEY 2015-10-22 11:46:38 EDT
because of the large number of bugs filed against mainline version\ is ambiguous and about to be removed as a choice.

If you believe this is still a bug, please change the status back to NEW and choose the appropriate, applicable version for it.
Comment 3 Logos01 2016-02-04 19:55:13 EST
I myself encountered a situation where this feature would have prevented a disruption in my gluster volumes' availability after a hostname-change. Although detaching and re-attaching the peer was successful against the new hostname, at some point it reverted to the old hostname (which was to a different IP address), and my brick-hosts became detached as a result.

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