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https://issues.apache.org/jira/browse/HBASE-14614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15958553#comment-15958553
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stack commented on HBASE-14614:
-------------------------------
v025 disables a bunch of tests -- tests that use mechanisms to simulate
conditions no longer supported in AMv2 -- or tests that fail because AMv2
enforces meta on master exclusively (current master seems loosey-goosey about
it). Write up coming.
> Procedure v2: Core Assignment Manager
> -------------------------------------
>
> Key: HBASE-14614
> URL: https://issues.apache.org/jira/browse/HBASE-14614
> Project: HBase
> Issue Type: Sub-task
> Components: proc-v2
> Affects Versions: 2.0.0
> Reporter: Stephen Yuan Jiang
> Assignee: Matteo Bertozzi
> Fix For: 2.0.0
>
> Attachments: HBASE-14614.master.001.patch,
> HBASE-14614.master.002.patch, HBASE-14614.master.003.patch,
> HBASE-14614.master.004.patch, HBASE-14614.master.005.patch,
> HBASE-14614.master.006.patch, HBASE-14614.master.007.patch,
> HBASE-14614.master.008.patch, HBASE-14614.master.009.patch,
> HBASE-14614.master.010.patch, HBASE-14614.master.011.patch,
> HBASE-14614.master.012.patch, HBASE-14614.master.012.patch,
> HBASE-14614.master.013.patch, HBASE-14614.master.014.patch,
> HBASE-14614.master.015.patch, HBASE-14614.master.016.patch,
> HBASE-14614.master.017.patch, HBASE-14614.master.018.patch,
> HBASE-14614.master.019.patch, HBASE-14614.master.020.patch,
> HBASE-14614.master.021.patch, HBASE-14614.master.022.patch,
> HBASE-14614.master.023.patch, HBASE-14614.master.024.patch,
> HBASE-14614.master.025.patch
>
>
> New AssignmentManager implemented using proc-v2.
> - AssignProcedure handle assignment operation
> - UnassignProcedure handle unassign operation
> - MoveRegionProcedure handle move/balance operation
> Concurrent Assign operations are batched together and sent to the balancer
> Concurrent Assign and Unassign operation ready to be sent to the RS are
> batched together
> This patch is an intermediate state where we add the new AM as
> AssignmentManager2() to the master, to be reached by tests. but the new AM
> will not be integrated with the rest of the system. Only new am unit-tests
> will exercise the new assigment manager. The integration with the master code
> is part of HBASE-14616
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