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Posted to issues@hbase.apache.org by "Subbu M Iyer (Commented) (JIRA)" <ji...@apache.org> on 2011/10/13 05:43:11 UTC
[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.
[ https://issues.apache.org/jira/browse/HBASE-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13126326#comment-13126326 ]
Subbu M Iyer commented on HBASE-4213:
-------------------------------------
Latest patch supports:
1. LB aware schema change process.
2. Monitoring support to show the alter status/error etc.
3. Progress reporting.
4. Added extensive test scenarios to test various failover/failure scenarios. (17 test cases so far)
> 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: 4213-101211-Support_instant_schema_changes_through_ZK.patch, 4213-Instant_Schema_change_through_ZK.patch, 4213-V10-Support_instant_schema_changes_through_ZK.patch, 4213-V5-Support_instant_schema_changes_through_ZK.patch, 4213-V7-Support_instant_schema_changes_through_ZK.patch, 4213-V8-Support_instant_schema_changes_through_ZK.patch, 4213-V9-Support_instant_schema_changes_through_ZK.patch, 4213-v9.txt, 4213.v6, 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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