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From anil lakineni <>
Subject Download of ROOT Volume failed with exception after some time in CCP 4.5
Date Wed, 21 Oct 2015 13:18:20 GMT
Hi CloudStackers,

I am using CloudPlatform 4.5.0 and XenServer 6.2.0

I was initiated volume download process at ROOT volume but due to file size
i got time out exception error

*Unable to Serialize: Job is cancelled as it has been blocking others for
too long*

*After the exception i did below steps:*

1. Changed some parameters in Global Settings to with hold the time to
complete download process in order to prevent time out exception for future
(because i have initiated volume download process again).

2. Restarted management service to effect changes which i changed in Global

3. Before re-initiating volume download process, I had changed state entry
to 'Ready' of the desired volume in the Cloud Database *volumes *table,because
the state of the volume was not changed from 'migrating' state after job
failed. So for to see download volume button on desired volume to
re-initiate volume download process.

But it got failed with error "*Failed to copy the volume from the source
primary storage pool to secondary storage*"

4. Later when checked at cloud *volume store ref *table i saw that status
of entry is still in "Creating" state. So i just deleted this entire row
from the table.
But got the same error when initiated volume download process : 'Failed to
copy the volume from the source primary storage pool to secondary storage'

5. So that later i was removed .vhd (previously downloaded) file manually
from the volumes directory in secondary storage.

6. then i succeeded in re-initiating volume download process and it is
downloading now.

*Here my question is,*

a) Does all the steps which i have taken were true or not?

b) If job failed like the above error which i mentioned, should i wait for
some time to cleanup all the jobs by CloudStack automatically to
re-initiate job?

c) If the job failed with this type of timeout exception, does CloudStack
runs job in back ground irrespective of exceptions? because i have seen
that after this error exception the size of the .vhd file in volume
directory of secondary storage is keep on increasing.So i thought the job
was running in background after these type of timeout exceptions, am i

Could any one please post your valuable recommendations on this scenario
and much appreciation for your answers on my questions.


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