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https://issues.apache.org/jira/browse/HBASE-14017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14614054#comment-14614054
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Hadoop QA commented on HBASE-14017:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12743600/HBASE-14017-v0.patch
against master branch at commit e640f1e76af8f32015f475629610da127897f01e.
ATTACHMENT ID: 12743600
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 3 new
or modified tests.
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/14664//console
This message is automatically generated.
> Procedure v2 - MasterProcedureQueue fix concurrency issue on table queue
> deletion
> ---------------------------------------------------------------------------------
>
> Key: HBASE-14017
> URL: https://issues.apache.org/jira/browse/HBASE-14017
> Project: HBase
> Issue Type: Sub-task
> Components: proc-v2
> Affects Versions: 2.0.0, 1.2.0, 1.1.1, 1.3.0
> Reporter: Matteo Bertozzi
> Assignee: Matteo Bertozzi
> Priority: Blocker
> Fix For: 2.0.0, 1.2.0, 1.1.2
>
> Attachments: HBASE-14017-v0.patch, HBASE-14017-v0.patch,
> HBASE-14017.v1-branch1.1.patch, HBASE-14017.v1-branch1.1.patch
>
>
> [~syuanjiang] found a concurrecy issue in the procedure queue delete where we
> don't have an exclusive lock before deleting the table
> {noformat}
> Thread 1: Create table is running - the queue is empty and wlock is false
> Thread 2: markTableAsDeleted see the queue empty and wlock= false
> Thread 1: tryWrite() set wlock=true; too late
> Thread 2: delete the queue
> Thread 1: never able to release the lock - NPE when trying to get the queue
> {noformat}
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