I'm happy to tweak the template. For users creating a template from a .bz2, does CreateTemplate use the checksum of decompressed image?
DL > -----Original Message----- > From: Edison Su [mailto:edison...@citrix.com] > Sent: 03 July 2013 10:18 PM > To: dev@cloudstack.apache.org > Subject: RE: Problems with using the TemplateObjectTO's checksum > > > > > -----Original Message----- > > From: Donal Lafferty [mailto:donal.laffe...@citrix.com] > > Sent: Wednesday, July 03, 2013 1:44 PM > > To: dev@cloudstack.apache.org > > Subject: Problems with using the TemplateObjectTO's checksum > > > > I'm trying to improve the performance of CopyCommand when copying a > > TemplateObjectTO to a TemplateObjectTO. On Hyper-V this happens > when > > a template is downloaded from S3 to the hypervisor's primary data store. > > > > I notice that the checksum on a TemplateObjectTO cannot be used to > > verify that an uncompressed image already exists on the destination. > > E.g. for a System VM template, the checksum corresponds to the .bz2 > > file, and not the .vhd > Do you update template.sql with the uncompressed template url, and > checksum? > > For example, the following entry should be updated properly for both > "checksum" field and "url" filed: > > INSERT INTO `cloud`.`vm_template` (id, uuid, unique_name, name, public, > created, type, hvm, bits, account_id, url, checksum, enable_password, > display_text, format, guest_os_id, featured, cross_zones, hypervisor_type) > VALUES (9, UUID(), 'routing-9', 'SystemVM Template (HyperV)', 0, now(), > 'SYSTEM', 0, 32, 1, 'http://download.cloud.com/templates/acton/acton- > systemvm-02062012.vhd.bz2', 'f613f38c96bf039f2e5cbf92fa8ad4f8', 0, > 'SystemVM Template (HyperV)', 'VHD', 15, 0, 1, 'Hyperv' ); > > > > > > > Should I store only the compressed image, and take a performance hit > > during uncompression? Or can I update the checksum for the > TemplateObjectTO? > > > > Any suggestions welcome, > > > > DL
