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https://issues.apache.org/jira/browse/HBASE-4424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13107028#comment-13107028
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Hudson commented on HBASE-4424:
-------------------------------
Integrated in HBase-TRUNK #2225 (See
[https://builds.apache.org/job/HBase-TRUNK/2225/])
HBASE-4424 Provide coprocessors access to createTable() via MasterServices
garyh :
Files :
* /hbase/trunk/CHANGES.txt
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/master/MasterServices.java
*
/hbase/trunk/src/test/java/org/apache/hadoop/hbase/master/TestCatalogJanitor.java
> Provide a means for coprocessors to create tables for internal use
> ------------------------------------------------------------------
>
> Key: HBASE-4424
> URL: https://issues.apache.org/jira/browse/HBASE-4424
> Project: HBase
> Issue Type: Improvement
> Components: coprocessors
> Reporter: Gary Helmling
> Assignee: Gary Helmling
> Fix For: 0.92.0
>
> Attachments: HBASE-4424.patch
>
>
> When developing access controls as a coprocessor, we needed to create an
> internal "_acl_" table for persisting the permission grants. We could have
> done this in the coprocessor through HBaseAdmin, but it seems silly to go
> through an RPC loop when we're already implementing a MasterObserver running
> on HMaster.
> So the simplest approach was to expose createTable() in MasterServices:
> {code}
> /**
> * Create a table using the given table definition.
> * @param desc The table definition
> * @param splitKeys Starting row keys for the initial table regions. If
> null
> * a single region is created.
> * @param sync If true, waits for all initial regions to be assigned before
> * returning
> */
> public void createTable(HTableDescriptor desc, byte [][] splitKeys)
> throws IOException;
> {code}
> Other coprocessor implementations will likely have similar needs, so I
> propose we add this to MasterServices.
> The alternative would be to expose some sort of HBaseAdmin like interface via
> MasterCoprocessorEnvironment, similar to what we do for HTable, but this
> would be a fair bit more work, and I still think we'll need a way to provide
> this capability in the short term.
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