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https://issues.apache.org/jira/browse/CLOUDSTACK-9570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15794258#comment-15794258
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ASF GitHub Bot commented on CLOUDSTACK-9570:
--------------------------------------------
Github user anshul1886 commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/1735#discussion_r94362243
--- 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 --
Is any issue observed here for which null check is added?
> 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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