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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-9570) Bug in listSnapshots for snapshots with deleted data stores
Date Tue, 03 Jan 2017 14:24:58 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-9570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15795173#comment-15795173
] 

ASF GitHub Bot commented on CLOUDSTACK-9570:
--------------------------------------------

Github user nvazquez commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/1735#discussion_r94412144
  
    --- Diff: api/src/org/apache/cloudstack/api/command/user/snapshot/ListSnapshotsCmd.java
---
    @@ -115,8 +115,10 @@ public void execute() {
             List<SnapshotResponse> snapshotResponses = new ArrayList<SnapshotResponse>();
             for (Snapshot snapshot : result.first()) {
                 SnapshotResponse snapshotResponse = _responseGenerator.createSnapshotResponse(snapshot);
    -            snapshotResponse.setObjectName("snapshot");
    -            snapshotResponses.add(snapshotResponse);
    +            if (snapshotResponse != null) {
    +                snapshotResponse.setObjectName("snapshot");
    --- End diff --
    
    This check is added as we introduced a case in `createSnapshotResponse` null is returned,
and in that case we should skip the response


> Bug in listSnapshots for snapshots with deleted data stores
> -----------------------------------------------------------
>
>                 Key: CLOUDSTACK-9570
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9570
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: API
>            Reporter: Nicolas Vazquez
>            Assignee: Nicolas Vazquez
>
> h3. Actual behaviour
> If there is snapshot on a data store that is removed, {{listSnapshots}} still tries to
enumerate it and gives error (in this example data store 2 has been removed):
> {code:xml|title=/client/api?command=listSnapshots&isrecursive=true&listall=true|borderStyle=solid}
> <listsnapshotsresponse cloud-stack-version="4.9.1.0-SNAPSHOT">
>    <errorcode>530</errorcode>
>    <cserrorcode>4250</cserrorcode>
>    <errortext>Unable to locate datastore with id 2</errortext>
> </listsnapshotsresponse>
> {code}
> h3. Reproduce error
> This steps can be followed to reproduce issue:
> * Take a snapshot of a volume (this creates a references for primary storage and secondary
storage in snapshot_store_ref table
> * Simulate retiring primary data storage where snapshot is cached (in this example X
is a fake data store and Y is snapshot id):
> {{UPDATE `cloud`.`snapshot_store_ref` SET `store_id`='X', `state`="Destroyed" WHERE `id`='Y';}}
> * List snapshots
> {{/client/api?command=listSnapshots&isrecursive=true&listall=true}}



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