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RE: [Xen-API] Resizing VDI with Local Caching enabled

To: Marco Sinhoreli <msinhore@xxxxxxxxx>, Jonathan Davies <Jonathan.Davies@xxxxxxxxxxxxx>
Subject: RE: [Xen-API] Resizing VDI with Local Caching enabled
From: Andrei Lifchits <Andrei.Lifchits@xxxxxxxxxx>
Date: Thu, 24 Mar 2011 12:15:03 -0700
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Thread-topic: [Xen-API] Resizing VDI with Local Caching enabled
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/5d095db5-4135-47f7-8118-3d9449965799.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
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