charm does not restart cinder-volume after creating LVM

[Nobuto Murata]

How to reproduce:
 1. deploy openstack services including cinder with local LVM iSCSI without setting overwrite=true(Bug #1383795)
 2. set overwrite=true in cinder after deploying openstack services

Expected result:
 charm setup LVM and restart cinder-volume service

Actual result:
 cinder charm does not restart cinder-volume after setting up LVM, then volumes cannot be created unless restarting cinder-volume service manually.

[Nobuto Murata (nobuto)]

The first try to create LVM was skipped due to missing overwrite=true (Bug #1383795).
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2014-10-21 15:00:52 INFO config-changed No physical volume label read from /dev/vdb
2014-10-21 15:00:52 INFO config-changed Failed to read physical volume "/dev/vdb"
2014-10-21 15:00:52 INFO worker.uniter.jujuc server.go:103 running hook tool "config-get" ["openstack-origin" "--format=json"]
====

Then setting overwrite=true after the deployment.
====
2014-10-21 15:09:13 INFO config-changed No physical volume label read from /dev/vdb
2014-10-21 15:09:13 INFO config-changed Failed to read physical volume "/dev/vdb"
2014-10-21 15:09:13 INFO config-changed No physical volume label read from /dev/vdb
2014-10-21 15:09:13 INFO config-changed Failed to read physical volume "/dev/vdb"
2014-10-21 15:09:15 INFO config-changed Creating new GPT entries.
2014-10-21 15:09:15 INFO config-changed GPT data structures destroyed! You may now partition the disk using fdisk or
2014-10-21 15:09:15 INFO config-changed other utilities.
2014-10-21 15:09:15 INFO config-changed The operation has completed successfully.
2014-10-21 15:09:15 INFO config-changed 1+0 records in
2014-10-21 15:09:15 INFO config-changed 1+0 records out
2014-10-21 15:09:15 INFO config-changed 1048576 bytes (1.0 MB) copied, 0.00334951 s, 313 MB/s
2014-10-21 15:09:15 INFO config-changed 100+0 records in
2014-10-21 15:09:15 INFO config-changed 100+0 records out
2014-10-21 15:09:15 INFO config-changed 51200 bytes (51 kB) copied, 0.00120039 s, 42.7 MB/s
2014-10-21 15:09:15 INFO config-changed Physical volume "/dev/vdb" successfully created
2014-10-21 15:09:15 INFO config-changed Volume group "cinder-volumes" successfully created
2014-10-21 15:09:15 INFO worker.uniter.jujuc server.go:103 running hook tool "config-get" ["openstack-origin" "--format=json"]
====

LVM was created, but no restart for cinder-volume service.

[Liang Chen (cbjchen)]

Fix for bug #1383795 has been merged, and will be back-ported to trunk later. As the first step to reproduce this bug involves the presence of that bug, is this bug still reproducible after that one being fixed?

[Seyeong Kim (seyeongkim)]

http://pastebin.ubuntu.com/11953242/

it seems that cinder-volume is not started after set overwrite=true.