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https://issues.apache.org/jira/browse/PHOENIX-4053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16107848#comment-16107848
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Hudson commented on PHOENIX-4053:
---------------------------------
FAILURE: Integrated in Jenkins build Phoenix-master #1723 (See
[https://builds.apache.org/job/Phoenix-master/1723/])
PHOENIX-4053 Lock row exclusively when necessary for mutable secondary
(jamestaylor: rev 54d9e1c36c46e7c50c29def08cf866599c7a4e45)
* (add)
phoenix-core/src/it/java/org/apache/phoenix/end2end/ConcurrentMutationsIT.java
* (edit) phoenix-core/src/test/java/org/apache/phoenix/util/TestUtil.java
* (add)
phoenix-core/src/main/java/org/apache/phoenix/hbase/index/LockManager.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/hbase/index/Indexer.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/hbase/index/builder/IndexBuildManager.java
> Lock row exclusively when necessary for mutable secondary indexing
> ------------------------------------------------------------------
>
> Key: PHOENIX-4053
> URL: https://issues.apache.org/jira/browse/PHOENIX-4053
> Project: Phoenix
> Issue Type: Bug
> Reporter: James Taylor
> Assignee: James Taylor
> Fix For: 4.12.0, 4.11.1
>
> Attachments: PHOENIX-4053_4.x-HBase-0.98_v2.patch,
> PHOENIX-4053_4.x-HBase-0.98_v3.patch, PHOENIX-4053-4.x-HBase-0.98_v4.patch,
> PHOENIX-4053-4.x-HBase-0.98_v6.patch, PHOENIX-4053_v2.patch,
> PHOENIX-4053_v3.patch, PHOENIX-4053_v4.patch, PHOENIX-4053_v5.patch,
> PHOENIX-4053_v6.patch, PHOENIX-4053_v7.patch, PHOENIX-4053_wip.patch
>
>
> From HBase 1.2 on, rows are not exclusively locked when the preBatchMutate
> call is made (see HBASE-18474). The mutable secondary index (global and
> local) depend on this to get a consistent snapshot of a row between the point
> when the current row value is looked up, and when the new row is written,
> until the mvcc is advanced. Otherwise, a subsequent update to a row may not
> see the current row state. Even with pre HBase 1.2 releases, the lock isn't
> held long enough for us. We need to hold the locks from the start of the
> preBatchMutate (when we read the data table to get the prior row values)
> until the mvcc is advanced (beginning of postBatchMutateIndispensably).
> Given the above, it's best if Phoenix manages the row locking itself
> (mimicing the current HBase mechanism).
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