Hi Marco,
Thanks for providing the info. I was able to reproduce this, and it's actually
behaving the way it's supposed to: it's just that resizing of cloned images is
unsupported. What happens is that local cache images are automatically
snapshotted off of the parent VHD, which is never affected by the resize
operation, and this results in the virtual size mismatch between the cache
image and the corresponding original that was resized. We should probably
explicitly disallow vdi-resize in such situations - sorry for the confusion!
Andrei
-----Original Message-----
From: Marco Sinhoreli [mailto:msinhore@xxxxxxxxx]
Sent: Thursday, March 24, 2011 9:30 PM
To: Andrei Lifchits
Cc: Jonathan Davies; xen-api
Subject: Re: [Xen-API] Resizing VDI with Local Caching enabled
Hi Andrei:
I've 4 hosts on pool. The did it in host master.
Need more info? please let me know.
Thanks
On Thu, Mar 24, 2011 at 4:15 PM, Andrei Lifchits <Andrei.Lifchits@xxxxxxxxxx>
wrote:
> Hi Marco,
>
> Would you mind also providing detailed repro steps for this? How many hosts
> do you have in your pool? Which host did you do it on?
>
> Thanks,
> Andrei
>
> -----Original Message-----
> From: Marco Sinhoreli [mailto:msinhore@xxxxxxxxx]
> Sent: Thursday, March 24, 2011 5:04 PM
> To: Jonathan Davies
> Cc: Andrei Lifchits; xen-api
> Subject: Re: [Xen-API] Resizing VDI with Local Caching enabled
>
> Hi Jonathan:
>
> Bellow the /var/log/SMlog file content:
>
> <log>
>
> [6667] 2011-03-24 13:54:15.913428 ['/usr/sbin/tap-ctl', 'stats',
> '-p', '28818', '-m', '0'] [6667] 2011-03-24 13:54:15.917045 = 0
> [6904] 2011-03-24 13:55:11.249673 ['/usr/sbin/tap-ctl', 'list']
> [6904] 2011-03-24 13:55:11.253768 = 0 [6904] 2011-03-24
> 13:55:11.259516 ['/usr/sbin/tap-ctl', 'stats', '-p', '26360',
> '-m', '2'] [6904] 2011-03-24 13:55:11.263313 = 0 [6904]
> 2011-03-24 13:55:11.263955 ['/usr/sbin/tap-ctl', 'stats', '-p',
> '28818', '-m', '0'] [6904] 2011-03-24 13:55:11.267715 = 0
> [7257] 2011-03-24 13:56:06.571060 ['/usr/sbin/tap-ctl', 'list']
> [7257] 2011-03-24 13:56:06.574950 = 0 [7257] 2011-03-24
> 13:56:06.580724 ['/usr/sbin/tap-ctl', 'stats', '-p', '26360',
> '-m', '2'] [7257] 2011-03-24 13:56:06.584472 = 0 [7257]
> 2011-03-24 13:56:06.585132 ['/usr/sbin/tap-ctl', 'stats', '-p',
> '28818', '-m', '0'] [7257] 2011-03-24 13:56:06.588925 = 0
> [7538] 2011-03-24 13:57:01.902472 ['/usr/sbin/tap-ctl', 'list']
> [7538] 2011-03-24 13:57:01.906591 = 0 [7538] 2011-03-24
> 13:57:01.912364 ['/usr/sbin/tap-ctl', 'stats', '-p', '26360',
> '-m', '2'] [7538] 2011-03-24 13:57:01.916432 = 0 [7538]
> 2011-03-24 13:57:01.917099 ['/usr/sbin/tap-ctl', 'stats', '-p',
> '28818', '-m', '0'] [7538] 2011-03-24 13:57:01.921214 = 0
> [7931] 2011-03-24 13:57:57.242696 ['/usr/sbin/tap-ctl', 'list']
> [7931] 2011-03-24 13:57:57.246488 = 0 [7931] 2011-03-24
> 13:57:57.252225 ['/usr/sbin/tap-ctl', 'stats', '-p', '26360',
> '-m', '2'] [7931] 2011-03-24 13:57:57.256070 = 0 [7931]
> 2011-03-24 13:57:57.256718 ['/usr/sbin/tap-ctl', 'stats', '-p',
> '28818', '-m', '0'] [7931] 2011-03-24 13:57:57.260511 = 0
> [8329] 2011-03-24 13:58:52.568972 ['/usr/sbin/tap-ctl', 'list']
> [8329] 2011-03-24 13:58:52.573106 = 0 [8329] 2011-03-24
> 13:58:52.578847 ['/usr/sbin/tap-ctl', 'stats', '-p', '26360',
> '-m', '2'] [8329] 2011-03-24 13:58:52.582838 = 0 [8329]
> 2011-03-24 13:58:52.583487 ['/usr/sbin/tap-ctl', 'stats', '-p',
> '28818', '-m', '0'] [8329] 2011-03-24 13:58:52.587380 = 0
> [8523] 2011-03-24 13:59:47.905467 ['/usr/sbin/tap-ctl', 'list']
> [8523] 2011-03-24 13:59:47.909332 = 0 [8523] 2011-03-24
> 13:59:47.915058 ['/usr/sbin/tap-ctl', 'stats', '-p', '26360',
> '-m', '2'] [8523] 2011-03-24 13:59:47.918973 = 0 [8523]
> 2011-03-24 13:59:47.919625 ['/usr/sbin/tap-ctl', 'stats', '-p',
> '28818', '-m', '0'] [8523] 2011-03-24 13:59:47.923533 = 0
> [8766] 2011-03-24 14:00:16.874228 lock: acquired
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [8766] 2011-03-24 14:00:16.876175 ['/usr/sbin/td-util', 'query',
> 'vhd', '-vpf',
> '/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/5d095db5-4135-
> 47f7-8118-3d9449965799.vhd'] [8766] 2011-03-24 14:00:16.903674
> SUCCESS [8766] 2011-03-24 14:00:16.904485 lock: released
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [8766] 2011-03-24 14:00:16.904600 vdi_deactivate {'sr_uuid':
> 'b5631d2b-7931-c93c-39da-5a20978e823b', 'subtask_of':
> 'OpaqueRef:c7c8309d-f5fb-a97c-6443-a8b1f4b3dabe', 'vdi_ref':
> 'OpaqueRef:c602d033-57a7-bf8f-7d5d-ca76e2520402', 'vdi_on_boot':
> 'persist', 'args': [], 'vdi_location':
> '5d095db5-4135-47f7-8118-3d9449965799', 'host_ref':
> 'OpaqueRef:0ed3e74b-aee7-e262-61cd-fe18a9a6d360', 'session_ref':
> 'OpaqueRef:fcea3677-4e21-e61b-a171-4369039ffe22', 'device_config':
> {'options': '', 'SRmaster': 'true', 'serverpath':
> '/vol/vol6/orquestra', 'server': 'riofd06.globoi.com'}, 'command':
> 'vdi_deactivate', 'vdi_allow_caching': 'true', 'sr_ref':
> 'OpaqueRef:e5bbc8cc-f3d5-3cc5-3e11-2c68797c8c45', 'local_cache_sr':
> '5dea02ae-a488-829b-92d2-3eb5c288b90f', 'vdi_uuid':
> '5d095db5-4135-47f7-8118-3d9449965799'}
> [8766] 2011-03-24 14:00:16.904773 blktap2.deactivate [8766]
> 2011-03-24 14:00:16.904855 lock: acquired
> /var/lock/sm/5d095db5-4135-47f7-8118-3d9449965799/vdi
> [8766] 2011-03-24 14:00:16.913169 ['/usr/sbin/tap-ctl', 'list',
> '-m', '2'] [8766] 2011-03-24 14:00:16.916386 = 0 [8766]
> 2011-03-24 14:00:16.916680 ['/usr/sbin/tap-ctl', 'close', '-p',
> '26360', '-m', '2'] [8766] 2011-03-24 14:00:16.992138 = 0
> [8766] 2011-03-24 14:00:16.992272 ['/usr/sbin/tap-ctl',
> 'detach', '-p', '26360', '-m', '2'] [8766] 2011-03-24 14:00:16.996854
> = 0 [8766] 2011-03-24 14:00:16.997078 ['/usr/sbin/tap-ctl',
> 'free', '-m', '2'] [8766] 2011-03-24 14:00:16.999694 = 0 [8766]
> 2011-03-24 14:00:16.999870 tap.deactivate: Shut down
> Tapdisk(vhd:/var/run/sr-mount/5dea02ae-a488-829b-92d2-3eb5c288b90f/5d0
> 95db5-4135-47f7-8118-3d9449965799.vhdcache,
> pid=26360, minor=2, state=R)
> [8766] 2011-03-24 14:00:17.039695 ['/usr/sbin/vhd-util',
> 'query', '--debug', '-p', '-n',
> '/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/5d095db5-4135-
> 47f7-8118-3d9449965799.vhd'] [8766] 2011-03-24 14:00:17.052353
> SUCCESS [8766] 2011-03-24 14:00:17.058312 Tearing down the cache
> [8766] 2011-03-24 14:00:17.059648 ['/usr/sbin/td-util', 'query',
> 'vhd', '-vpf',
> '/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/7dde9a41-45bf-
> 4a4a-a17c-10b9ca93c41f.vhd'] [8766] 2011-03-24 14:00:17.102206
> SUCCESS [8766] 2011-03-24 14:00:17.449727 lock: acquired
> /var/lock/sm/7dde9a41-45bf-4a4a-a17c-10b9ca93c41f/cachesetup
> [8766] 2011-03-24 14:00:17.449808 lock: released
> /var/lock/sm/7dde9a41-45bf-4a4a-a17c-10b9ca93c41f/cachesetup
> [8766] 2011-03-24 14:00:17.449863 lock: closed
> /var/lock/sm/7dde9a41-45bf-4a4a-a17c-10b9ca93c41f/cachesetup
> [8766] 2011-03-24 14:00:17.449926 lock: closed
> /var/lock/sm/5dea02ae-a488-829b-92d2-3eb5c288b90f/sr
> [8766] 2011-03-24 14:00:17.734256 ['/usr/sbin/td-util', 'query',
> 'vhd', '-vpf',
> '/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/5d095db5-4135-
> 47f7-8118-3d9449965799.vhd'] [8766] 2011-03-24 14:00:17.746639
> SUCCESS [8766] 2011-03-24 14:00:17.762216 Removed host key
> host_OpaqueRef:0ed3e74b-aee7-e262-61cd-fe18a9a6d360 for
> 5d095db5-4135-47f7-8118-3d9449965799
> [8766] 2011-03-24 14:00:17.762311 lock: released
> /var/lock/sm/5d095db5-4135-47f7-8118-3d9449965799/vdi
> [8766] 2011-03-24 14:00:17.762378 lock: closed
> /var/lock/sm/5d095db5-4135-47f7-8118-3d9449965799/vdi
> [8766] 2011-03-24 14:00:17.762456 lock: closed
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [8766] 2011-03-24 14:00:17.762628 lock: closed
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [8822] 2011-03-24 14:00:17.884668 lock: acquired
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [8822] 2011-03-24 14:00:17.886117 ['/usr/sbin/td-util', 'query',
> 'vhd', '-vpf',
> '/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/5d095db5-4135-
> 47f7-8118-3d9449965799.vhd'] [8822] 2011-03-24 14:00:17.902571
> SUCCESS [8822] 2011-03-24 14:00:17.903878 vdi_detach {'sr_uuid':
> 'b5631d2b-7931-c93c-39da-5a20978e823b', 'subtask_of':
> 'OpaqueRef:c7c8309d-f5fb-a97c-6443-a8b1f4b3dabe', 'vdi_ref':
> 'OpaqueRef:c602d033-57a7-bf8f-7d5d-ca76e2520402', 'vdi_on_boot':
> 'persist', 'args': [], 'vdi_location':
> '5d095db5-4135-47f7-8118-3d9449965799', 'host_ref':
> 'OpaqueRef:0ed3e74b-aee7-e262-61cd-fe18a9a6d360', 'session_ref':
> 'OpaqueRef:28d24a42-044e-091a-6b31-a49a5b80b565', 'device_config':
> {'options': '', 'SRmaster': 'true', 'serverpath':
> '/vol/vol6/orquestra', 'server': 'riofd06.globoi.com'}, 'command':
> 'vdi_detach', 'vdi_allow_caching': 'true', 'sr_ref':
> 'OpaqueRef:e5bbc8cc-f3d5-3cc5-3e11-2c68797c8c45', 'local_cache_sr':
> '5dea02ae-a488-829b-92d2-3eb5c288b90f', 'vdi_uuid':
> '5d095db5-4135-47f7-8118-3d9449965799'}
> [8822] 2011-03-24 14:00:17.904166 lock: closed
> /var/lock/sm/5d095db5-4135-47f7-8118-3d9449965799/vdi
> [8822] 2011-03-24 14:00:17.904285 lock: released
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [8822] 2011-03-24 14:00:17.904565 lock: closed
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [8994] 2011-03-24 14:00:43.246717 ['/usr/sbin/tap-ctl', 'list']
> [8994] 2011-03-24 14:00:43.250366 = 0 [8994] 2011-03-24
> 14:00:43.256244 ['/usr/sbin/tap-ctl', 'stats', '-p', '28818',
> '-m', '0'] [8994] 2011-03-24 14:00:43.260298 = 0 [9095]
> 2011-03-24 14:01:12.462263 lock: acquired
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [9095] 2011-03-24 14:01:12.464090 ['/usr/sbin/td-util', 'query',
> 'vhd', '-vpf',
> '/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/5d095db5-4135-
> 47f7-8118-3d9449965799.vhd'] [9095] 2011-03-24 14:01:12.481012
> SUCCESS [9095] 2011-03-24 14:01:12.482403 lock: released
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [9095] 2011-03-24 14:01:12.482584 vdi_resize {'sr_uuid':
> 'b5631d2b-7931-c93c-39da-5a20978e823b', 'subtask_of':
> 'OpaqueRef:4e9f7429-4c78-35ca-3c35-aa2ba7e87b03', 'vdi_ref':
> 'OpaqueRef:c602d033-57a7-bf8f-7d5d-ca76e2520402', 'vdi_on_boot':
> 'persist', 'args': ['42949672960'], 'vdi_location':
> '5d095db5-4135-47f7-8118-3d9449965799', 'host_ref':
> 'OpaqueRef:0ed3e74b-aee7-e262-61cd-fe18a9a6d360', 'session_ref':
> 'OpaqueRef:f7ef4d98-e63d-d4cc-ea06-c1eefd721779', 'device_config':
> {'options': '', 'SRmaster': 'true', 'serverpath':
> '/vol/vol6/orquestra', 'server': 'riofd06.globoi.com'}, 'command':
> 'vdi_resize', 'vdi_allow_caching': 'true', 'sr_ref':
> 'OpaqueRef:e5bbc8cc-f3d5-3cc5-3e11-2c68797c8c45', 'local_cache_sr':
> '5dea02ae-a488-829b-92d2-3eb5c288b90f', 'vdi_uuid':
> '5d095db5-4135-47f7-8118-3d9449965799'}
> [9095] 2011-03-24 14:01:12.482785 ['/usr/sbin/vhd-util',
> 'resize', '--debug', '-s', '40960', '-n',
> '/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/5d095db5-4135-
> 47f7-8118-3d9449965799.vhd', '-j',
> '.journal-5d095db5-4135-47f7-8118-3d9449965799']
> [9095] 2011-03-24 14:01:12.702535 SUCCESS [9095] 2011-03-24
> 14:01:12.702738 ['/usr/sbin/vhd-util', 'query', '--debug', '-v',
> '-n',
> '/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/5d095db5-4135-
> 47f7-8118-3d9449965799.vhd'] [9095] 2011-03-24 14:01:12.716394
> SUCCESS [9095] 2011-03-24 14:01:12.749430 _db_update_sm_config:
> 5d095db5-4135-47f7-8118-3d9449965799 del sm-config:vhd-parent [9095]
> 2011-03-24 14:01:12.788894 lock: closed
> /var/lock/sm/b5631d2b-7931-c93c-39da-5a20978e823b/sr
> [9233] 2011-03-24 14:01:38.575962 ['/usr/sbin/tap-ctl', 'list']
> [9233] 2011-03-24 14:01:38.579594 = 0 [9233] 2011-03-24
> 14:01:38.585400 ['/usr/sbin/tap-ctl', 'stats', '-p', '28818',
> '-m', '0'] [9233] 2011-03-24 14:01:38.589243 = 0
>
> </log>
>
> On Thu, Mar 24, 2011 at 12:01 PM, Jonathan Davies
> <Jonathan.Davies@xxxxxxxxxxxxx> wrote:
>> Hi Marco,
>>
>> No, that's not the expected behaviour...
>>
>> Andrei (cc'd) has not been able to reproduce this. Are you able to provide
>> /var/log/SMlog and some more detailed reproduction steps?
>>
>> Thanks,
>>
>> Jonathan
>>
>>> -----Original Message-----
>>> From: xen-api-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-api-
>>> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Marco Sinhoreli
>>> Sent: 23 March 2011 15:03
>>> To: xen-api
>>> Subject: [Xen-API] Resizing VDI with Local Caching enabled
>>>
>>> Hello all:
>>>
>>> I'm trying resize a VDI cloned from a gold-image. I'm using storage
>>> local caching in my tests. After resize, the virtual machine isn't
>>> booting. Bellow the exception:
>>>
>>>
>>> <output>
>>> [root@server ~]# vdi=$(xe vbd-list
>>> vm-uuid=fa537d17-1b07-b472-74c7-67b2a2f5561f device=xvda
>>> params=vdi-uuid --minimal) [root@server ~]# xe vdi-resize uuid=$vdi
>>> disk-size=40GiB [root@server ~]# echo $?
>>> 0
>>> [root@server ~]# xe vm-start
>>> uuid=fa537d17-1b07-b472-74c7-67b2a2f5561f
>>> There was an SR backend failure.
>>> status: non-zero exit
>>> stdout:
>>> stderr: Traceback (most recent call last):
>>> File "/opt/xensource/sm/NFSSR", line 253, in ?
>>> SRCommand.run(NFSSR, DRIVER_INFO)
>>> File "/opt/xensource/sm/SRCommand.py", line 246, in run
>>> ret = cmd.run(sr)
>>> File "/opt/xensource/sm/SRCommand.py", line 94, in run
>>> return self._run_locked(sr)
>>> File "/opt/xensource/sm/SRCommand.py", line 131, in _run_locked
>>> return self._run(sr, target)
>>> File "/opt/xensource/sm/SRCommand.py", line 183, in _run
>>> caching_params)
>>> File "/opt/xensource/sm/blktap2.py", line 1280, in activate
>>> if self._activate_locked(sr_uuid, vdi_uuid, caching_params):
>>> File "/opt/xensource/sm/blktap2.py", line 29, in wrapper
>>> ret = op(self, *args)
>>> File "/opt/xensource/sm/blktap2.py", line 1312, in
>>> _activate_locked
>>> dev_path = self._activate(sr_uuid, vdi_uuid, caching_params)
>>> File "/opt/xensource/sm/blktap2.py", line 1326, in _activate
>>> dev_path = self.setup_cache(sr_uuid, vdi_uuid, caching_params)
>>> File "/opt/xensource/sm/blktap2.py", line 1468, in setup_cache
>>> local_sr_uuid, scratch_mode)
>>> File "/opt/xensource/sm/blktap2.py", line 1550, in _setup_cache
>>> standby=scratch_mode)
>>> File "/opt/xensource/sm/blktap2.py", line 711, in launch_on_tap
>>> raise TapdiskFailed(cls.Arg(_type, path), ctl)
>>> blktap2.TapdiskFailed:
>>> Tapdisk(vhd:/var/run/sr-mount/01cbd019-bd89-1296-a4bf-
>>> fd9d412f64f4/05732396-9466-4828-9926-2217a10a18c9.vhdcache):
>>> ['/usr/sbin/tap-ctl', 'open', '-p', '21483', '-m', '3', '-a',
>>> 'vhd:/var/run/sr-mount/01cbd019-bd89-1296-a4bf-fd9d412f64f4/05732396
>>> - 9466-4828-9926-2217a10a18c9.vhdcache',
>>> '-e', '0', '-2',
>>> 'vhd:/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/05732396
>>> -
>>> 9466-4828-9926-2217a10a18c9.vhd']
>>> failed: status=22, pid=21485, errmsg= </output>
>>>
>>> Is it a bug or could I have done something not permitted?
>>>
>>> Thoughts?
>>>
>>>
>>> Cheers!
>>>
>>> --
>>> Marco Sinhoreli
>>>
>>> _______________________________________________
>>> xen-api mailing list
>>> xen-api@xxxxxxxxxxxxxxxxxxx
>>> http://lists.xensource.com/mailman/listinfo/xen-api
>>
>
>
>
> --
> Marco Sinhoreli
>
--
Marco Sinhoreli
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