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https://issues.apache.org/jira/browse/HBASE-15598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu updated HBASE-15598:
---------------------------
Attachment: 15598.v1.patch
There is more than one way to fix the issue.
Patch v1 adds a method to SnapshotManifest which returns the number of region
manifests.
> Potential null deference in CloneSnapshotProcedure#preCloneSnapshot()
> ---------------------------------------------------------------------
>
> Key: HBASE-15598
> URL: https://issues.apache.org/jira/browse/HBASE-15598
> Project: HBase
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Ted Yu
> Attachments: 15598.v1.patch
>
>
> In CloneSnapshotProcedure#preCloneSnapshot():
> {code}
> ProcedureSyncWait.getMasterQuotaManager(env)
> .checkNamespaceTableAndRegionQuota(getTableName(),
> manifest.getRegionManifestsMap().size());
> {code}
> Here is related code in SnapshotManifest#getRegionManifestsMap() :
> {code}
> if (regionManifests == null || regionManifests.size() == 0) return null;
> ...
> {code}
> When there is no region manifest, null would be returned, resulting in NPE in
> CloneSnapshotProcedure#preCloneSnapshot()
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