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Posted to issues@cloudstack.apache.org by "Rafael Weingärtner (JIRA)" <ji...@apache.org> on 2017/12/11 11:47:00 UTC
[jira] [Assigned] (CLOUDSTACK-10128) Template from snapshot not
merging vhd files
[ https://issues.apache.org/jira/browse/CLOUDSTACK-10128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rafael Weingärtner reassigned CLOUDSTACK-10128:
-----------------------------------------------
Assignee: Rafael Weingärtner
> Template from snapshot not merging vhd files
> --------------------------------------------
>
> Key: CLOUDSTACK-10128
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-10128
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the default.)
> Components: Management Server
> Affects Versions: 4.10.0.0, 4.9.2.0, 4.5.2.2, 4.9.3.0
> Environment: Production environment running ACS 4.5.2.2, 4.9.2.0, 4.9.3.0
> XenServer 6.5
> Primary Storage NFS and ISCSI
> Fresh install running 4.5.2.2, 4.9.2.0, 4.9.3.0 and 4.10
> Reporter: Marcelo Lima
> Assignee: Rafael Weingärtner
> Priority: Critical
>
> If we have two or more snapshots of a ROOT disk and try to create a template from differencial snapshots, CloudStack not merging the vhd files on secondary storage.
> Steps to reproduce
> 1. Create virtual machine - OK
> 2. Create a manual snapshot from ROOT volume - OK
> The vhd of first snapshot (snapshot-base) is stored on secondary storage correctly
> [root@acs01 6]# ls -l /exports/secondary/snapshots/2/6/011a7650-a13f-4332-8c72-2428a002affc.vhd
> -rw-r--r-- 1 root root 1767191040 Nov 1 12:12 /exports/secondary/snapshots/2/6/011a7650-a13f-4332-8c72-2428a002affc.vhd
> [root@acs01 6]# md5sum /exports/secondary/snapshots/2/6/011a7650-a13f-4332-8c72-2428a002affc.vhd
> 240e5e424552d44b5d297895b064beee /exports/secondary/snapshots/2/6/011a7650-a13f-4332-8c72-2428a002affc.vhd
> 3. Create a template from snapshot-base - OK
> [root@acs01 6]# ls -l /exports/secondary/template/tmpl/2/206/be3311d9-8e59-4240-968d-73d7a6eecfdd.vhd
> -rw-r--r-- 1 root root 1767191040 Nov 1 12:17 /exports/secondary/template/tmpl/2/206/be3311d9-8e59-4240-968d-73d7a6eecfdd.vhd
> [root@acs01 6]# md5sum /exports/secondary/template/tmpl/2/206/be3311d9-8e59-4240-968d-73d7a6eecfdd.vhd
> 240e5e424552d44b5d297895b064beee /exports/secondary/template/tmpl/2/206/be3311d9-8e59-4240-968d-73d7a6eecfdd.vhd
> This template from snapshot-base boot normally
> 4. Create new file (1GB) on ROOT volume
> 5. Create new snapshot (snapshot-diff) from ROOT volume - OK
> [root@acs01 6]# ls -l /exports/secondary/snapshots/2/6/
> total 2840056
> -rw-r--r-- 1 root root 1767191040 Nov 1 12:12 011a7650-a13f-4332-8c72-2428a002affc.vhd <- snapshot-base
> -rw-r--r-- 1 root root 1141019136 Nov 1 12:21 1503adaa-4f6e-4f9c-8d80-68663baa86b8.vhd <- snapshot-diff
> 6. Create a template from second snapshot - NOK
> [root@acs01 6]# ls -lh /exports/secondary/template/tmpl/2/207/4c5c51a1-fcb4-4cc8-8f97-1664a63af262.vhd
> -rw-r--r-- 1 root root 1141019136 Nov 1 12:30 /exports/secondary/template/tmpl/2/207/4c5c51a1-fcb4-4cc8-8f97-1664a63af262.vhd
> CloudStack not merging snapshot-base and snapshot-diff. Template from second snapshot is corrupted because is based just on differential vhd.
> Volume from snapshot work very well
> 1. Create a volume from snapshot-diff - OK
> CloudStack merge two snapshots in one file
> [root@acs01 primary]# ls -l /exports/primary/70f1db23-cc59-4ec7-b8d4-ed036228593b.vhd
> -rw-r--r-- 1 root root 2843030016 Nov 1 12:34 /exports/primary/70f1db23-cc59-4ec7-b8d4-ed036228593b.vhd
> 2. Download the new volume to check vhd on secondary storage
> [root@acs01 9]# ls -l /exports/secondary/volumes/2/9/ec6e0f65-bb71-4c91-bac3-287cde2106b7.vhd
> -rw-r--r-- 1 root root 2843030016 Nov 1 12:35 /exports/secondary/volumes/2/9/ec6e0f65-bb71-4c91-bac3-287cde2106b7.vhd
> We test on 4.5.2.2, 4.9.2.0, 4.9.3.0 and 4.10. XenServer 6.5 with SP1 and XenServer 6.5 with all patches.
> A workaround is create a volume (data-disk) from latest snapshot, create new snapshot from data-disk and convert to template.
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