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https://issues.apache.org/jira/browse/HBASE-7579?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-7579:
-------------------------
Resolution: Fixed
Fix Version/s: (was: 0.94.8)
0.98.0
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
Committed to trunk and 0.95. Not enough of an issue to backport I'd say (open
new issue if want to get it in to 0.94). Thanks Aleks and Matteo.
> HTableDescriptor equals method fails if results are returned in a different
> order
> ---------------------------------------------------------------------------------
>
> Key: HBASE-7579
> URL: https://issues.apache.org/jira/browse/HBASE-7579
> Project: HBase
> Issue Type: Bug
> Components: Admin
> Affects Versions: 0.94.6, 0.95.0
> Reporter: Aleksandr Shulman
> Assignee: Aleksandr Shulman
> Priority: Minor
> Fix For: 0.98.0, 0.95.1
>
> Attachments: HBASE-7579-0.94.patch, HBASE-7579-v1.patch,
> HBASE-7579-v2.patch, HBASE-7579-v3.patch, HBASE-7579-v4.patch,
> HBASE-7579-v5.patch
>
>
> HTableDescriptor's compareTo function compares a set of HColumnDescriptors
> against another set of HColumnDescriptors. It iterates through both, relying
> on the fact that they will be in the same order.
> In my testing, I may have seen this issue come up, so I decided to fix it.
> It's a straightforward fix. I convert the sets into a hashset for O(1)
> lookups (at least in theory), then I check that all items in the first set
> are found in the second.
> Since the sizes are the same, we know that if all elements showed up in the
> second set, then they must be equal.
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