[Bug 1475247] Re: ceph-disk-prepare --zap-disk hang
James Page
james.page at ubuntu.com
Mon Aug 10 10:02:33 UTC 2015
** Description changed:
- During an Autopilot deployment on gMAAS, Juju had hung running a mon-
- relation-changed hook
+ [Impact]
+ Disks with invalid metadata can cause hangs during cleaning; resulting in stuck deployments.
- $ ps afxwww | grep -A 4 [m]on-relation-changed
- 29118 ? S 0:03 \_ /usr/bin/python /var/lib/juju/agents/unit-ceph-1/charm/hooks/mon-relation-changed
- 37996 ? S 0:00 \_ /bin/sh /usr/sbin/ceph-disk-prepare --fs-type xfs --zap-disk /dev/sdb
- 37998 ? S 0:00 \_ /usr/bin/python /usr/sbin/ceph-disk prepare --fs-type xfs --zap-disk /dev/sdb
- 38016 ? D 0:00 \_ /sbin/sgdisk --zap-all --clear --mbrtogpt -- /dev/sdb
+ [Test Case]
+ Initialize a disk with invalid metadata using the '--zap-disk' option.
+
+ [Regression Potential]
+ Minimal; already in later Ubuntu releases.
+
+ [Original Bug Report]
+ During an Autopilot deployment on gMAAS, Juju had hung running a mon-relation-changed hook
+
+ $ ps afxwww | grep -A 4 [m]on-relation-changed
+ 29118 ? S 0:03 \_ /usr/bin/python /var/lib/juju/agents/unit-ceph-1/charm/hooks/mon-relation-changed
+ 37996 ? S 0:00 \_ /bin/sh /usr/sbin/ceph-disk-prepare --fs-type xfs --zap-disk /dev/sdb
+ 37998 ? S 0:00 \_ /usr/bin/python /usr/sbin/ceph-disk prepare --fs-type xfs --zap-disk /dev/sdb
+ 38016 ? D 0:00 \_ /sbin/sgdisk --zap-all --clear --mbrtogpt -- /dev/sdb
This had been in this state for > 10m. The logs[1] from the unit in
question showed that something was up with the partition tables on that
disk.
I fixed this by hand using gdisk[2]
[1] https://pastebin.canonical.com/135426/
[2] http://paste.ubuntu.com/11887096/
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https://bugs.launchpad.net/bugs/1475247
Title:
ceph-disk-prepare --zap-disk hang
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