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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-9025) Unable to deploy VM instance from template if template spin from linked clone snapshot
Date Wed, 15 Nov 2017 10:43:00 GMT


ASF GitHub Bot commented on CLOUDSTACK-9025:

anshul1886 commented on a change in pull request #2315: A comprehensive solution for #CLOUDSTACK-9025.

 File path: engine/schema/src/com/cloud/host/dao/
 @@ -1194,4 +1178,26 @@ public HostVO findByIp(final String ipAddress) {
         sc.setParameters("type", type);
         return listBy(sc);
+    String sqlFindHostConnectedToSnapshotStoragePoolToExecuteCommand = "select from
snapshots s join volumes v on = s.volume_id "
+            + "join storage_pool pool on = v.pool_id join cluster c on pool.cluster_id
= join host h on h.cluster_id = "
 Review comment:
   Yes, we only use secondary storage to build the template from snapshot. This might not
be applicable to managed store. But that's also available to all hosts in zone so any random
host in a zone will do.
   Also we can delete volume without deleting its snapshot (backup). We only delete VM snapshots
when we delete VM.
   Yes I meant using JPA queries.

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> Unable to deploy VM instance from template if template spin from linked clone snapshot
> --------------------------------------------------------------------------------------
>                 Key: CLOUDSTACK-9025
>                 URL:
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: XenServer
>    Affects Versions: 4.5.2
>         Environment: XenServer 6.5
>            Reporter: Anshul Gangwar
>            Assignee: Anshul Gangwar
>            Priority: Critical
>             Fix For: 4.6.0
> As default, CloudStack create linked clone snapshot for VM instance . When we take a
snapshot for the VM, and create a template based on such snapshot, CloudStack only download
incremental VHD as template file, as a result, the VM instance fail to deploy as it is incomplete.

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