[jira] [Updated] (HBASE-10576) Custom load balancer to co-locate the regions of two tables which are having same split keys

["rajeshbabu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-10576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

rajeshbabu updated HBASE-10576:
-------------------------------

    Attachment: HBASE-10536_v2.patch

[~yuzhihong@gmail.com]
bq.We should move away from Writables, right ?
Since ImmutableBytesWritable has equals and hashcode implementation for byte array using here as hashmap key, not used for any serialization. 
bq.What if mappedTable is the same as tableName ?
it will not return same table name. added some validation before adding to tables to colocate to avoid this.

Fixed findbugs and javadoc warnings.
Added test case for merge as well.

Thanks for review Ted.

> Custom load balancer to co-locate the regions of two tables which are having same split keys
> --------------------------------------------------------------------------------------------
>
>                 Key: HBASE-10576
>                 URL: https://issues.apache.org/jira/browse/HBASE-10576
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Balancer
>            Reporter: rajeshbabu
>            Assignee: rajeshbabu
>         Attachments: HBASE-10536_v2.patch, HBASE-10576.patch
>
>
> To support local indexing both user table and index table should have same split keys. This issue to provide custom balancer to colocate the regions of two tables which are having same split keys. 
> This helps in Phoenix as well.



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