GitHub user karuturi opened a pull request:
https://github.com/apache/cloudstack/pull/901
CLOUDSTACK-8808: Successfully registered VHD template is downloaded again
due to missing virtualsize property in template.properties
We have multiple file processors to process different types of image
formats. The processor interface has two methods getVirtualSize() and
process().
1. getVirtualSize() as the name says, returns the virtual size of
the file and is used at get the size while copying files from NFS to s3
2. process() returns FormatInfo struct which has fileType, size,
virutalSize, filename. on successfully downloading a template, each
file is passed to all the processors.process() and whichever returns a
FormatInfo, that will be used to create template.properties file. If
process() throws an InternalErrorException, template installation fails.
But, if process() returns null, template registration is successful with
template.properties missing some attributes like virtualSize, file
format etc. which results in this bug on restart of ssvm/cloud
service/management server.
failing the template download if virutalsize or some other properties
cannot be determined.
The following changes are done:
getVirtualSize() to always return size(if it can calculate, get virtual
size else return file size). This would mean the following changes
1. QCOW2Processor.getVirtualSize() to return file size if virtual
size calculation fails
2. VHDProcessor.getVirtualSize() to return file size if virtual size
calculation fails
process() to throw InternalErrorException if virtual size calculation
fails or any other exceptions occur. This would mean the following
changes
1. OVAProcessor to throw InternalErrorException if untar fails
2. QCOW2Processor to throw InternalErrorException if virtual size
calculation fails
3. VHDProcessor to throw InternalErrorException if virtual size
calculation fails
Testing:
added unittests for the changes in the file processors.
manual test:
setup: host xenserver 6.5, management server centos 6.7
template: disk created using the process specified by andy at
https://issues.apache.org/jira/browse/CLOUDSTACK-8808?focusedCommentId=14933368
tried to register the template and it failed with an error. Template never
moved to Ready state.

You can merge this pull request into a Git repository by running:
$ git pull https://github.com/karuturi/cloudstack CLOUDSTACK-8808
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/cloudstack/pull/901.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #901
----
commit 1056171aca8816492c16c5bdf8f963745f968b5d
Author: Rajani Karuturi <[email protected]>
Date: 2015-09-29T16:25:23Z
CLOUDSTACK-8808: Successfully registered VHD template is downloaded
again due to missing virtualsize property in template.properties
We have multiple file processors to process different types of image
formats. The processor interface has two methods getVirtualSize() and
process().
1. getVirtualSize() as the name says, returns the virtual size of
the file and is used at get the size while copying files from NFS to s3
2. process() returns FormatInfo struct which has fileType, size,
virutalSize, filename. on successfully downloading a template, each
file is passed to all the processors.process() and whichever returns a
FormatInfo, that will be used to create template.properties file. If
process() throws an InternalErrorException, template installation fails.
But, if process() returns null, template registration is successful with
template.properties missing some attributes like virtualSize, file
format etc. which results in this bug on restart of ssvm/cloud
service/management server.
failing the template download if virutalsize or some other properties
cannot be determined.
The following changes are done:
getVirtualSize() to always return size(if it can calculate, get virtual
size else return file size). This would mean the following changes
1. QCOW2Processor.getVirtualSize() to return file size if virtual
size calculation fails
2. VHDProcessor.getVirtualSize() to return file size if virtual size
calculation fails
process() to throw InternalErrorException if virtual size calculation
fails or any other exceptions occur. This would mean the following
changes
1. OVAProcessor to throw InternalErrorException if untar fails
2. QCOW2Processor to throw InternalErrorException if virtual size
calculation fails
3. VHDProcessor to throw InternalErrorException if virtual size
calculation fails
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