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https://issues.apache.org/jira/browse/HBASE-23306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rahul Kesharwani resolved HBASE-23306.
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Resolution: Not A Bug
The submitted behavior is working as expected hence marking this issue resolved.
> Add sanity check for Admin#deleteTables and other operations
> ------------------------------------------------------------
>
> Key: HBASE-23306
> URL: https://issues.apache.org/jira/browse/HBASE-23306
> Project: HBase
> Issue Type: Bug
> Components: Admin
> Reporter: Rahul Kesharwani
> Priority: Minor
>
> h3. Description:
> After taking a brief observation, It seems to be the following operation
> behaves in the opposite manner of what they should be doing in case `null
> argument.
> *For example:* `Admin#listTables(Pattern)` If its argument is `null` then all
> the tables would be returned. Also this very method is being used by rest of
> the listed operation like `deleteTables()`, `enableTables()`,
> `disableTables()` etc.
> h3. Affected operation:
> * Admin.listTables(Pattern)
> * Admin.listTableNames(Pattern)
> * Admin.deleteTables(Pattern)
> * Admin.enableTables(Pattern)
> * Admin.disableTables(Pattern)
> This could be a very rare scenario but I think it should either throw an
> exception or behave opposite of what current behavior is.
> *If this was not intentional* then I can quickly put together a patch with
> precondition check for these operations.
>
> Note: I tried to look for answers but I was not able to find any relevant
> issue/comments hence logging this issue. Feel free to close if this is
> intentional behavior.
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