[jira] [Commented] (HBASE-4213) Support for fault tolerant, instant schema updates with out master's intervention (i.e with out enable/disable and bulk assign/unassign) through ZK.

["Subbu M Iyer (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102335#comment-13102335 ] 

Subbu M Iyer commented on HBASE-4213:
-------------------------------------

Ted,

I addressed all the issues + a merge conflict and also ran all the tests on my local. All tests pass except the following which has nothing to do with this effort.


Results :

Failed tests:   testWorkerAbort(org.apache.hadoop.hbase.master.TestDistributedLogSplitting): expected:<1> but was:<0>
  testMultipleResubmits(org.apache.hadoop.hbase.master.TestSplitLogManager): expected:<2> but was:<3>
  testMergeTool(org.apache.hadoop.hbase.util.TestMergeTool): 'merging regions 0 and 1' failed with errCode -1

Tests in error: 
  testScanMultipleVersions(org.apache.hadoop.hbase.TestScanMultipleVersions): Cannot lock storage /work/HBase0909/hbase/build/hbase/test/dfs/name1. The directory is already locked.
  testAll(org.apache.hadoop.hbase.thrift.TestThriftServer): Cannot lock storage /work/HBase0909/hbase/build/hbase/test/dfs/name2. The directory is already locked.

Tests run: 970, Failures: 3, Errors: 2, Skipped: 9


> Support for fault tolerant, instant schema updates with out master's intervention (i.e with out enable/disable and bulk assign/unassign) through ZK.
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4213
>                 URL: https://issues.apache.org/jira/browse/HBASE-4213
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Subbu M Iyer
>            Assignee: Subbu M Iyer
>             Fix For: 0.92.0
>
>         Attachments: 4213-Instant_Schema_change_through_ZK.patch, 4213-V5-Support_instant_schema_changes_through_ZK.patch, HBASE-4213-Instant_schema_change.patch, HBASE-4213_Instant_schema_change_-Version_2_.patch, HBASE_Instant_schema_change-version_3_.patch
>
>
> This Jira is a slight variation in approach to what is being done as part of 
> https://issues.apache.org/jira/browse/HBASE-1730
> Support instant schema updates such as Modify Table, Add Column, Modify Column operations:
> 1. With out enable/disabling the table.
> 2. With out bulk unassign/assign of regions.

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