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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13696) Prune retired hbase versions from ref guide prereq support tables
Date Mon, 24 Aug 2015 18:39:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14709821#comment-14709821
] 

Hadoop QA commented on HBASE-13696:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12751941/HBASE-13696.1.patch
  against master branch at commit 9334a47d4570f8adfc003f0fb2c5969a88c3bba0.
  ATTACHMENT ID: 12751941

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 5 new or modified
tests.

    {color:green}+1 hadoop versions{color}. The patch compiles with all supported hadoop versions
(2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.7.0)

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 protoc{color}.  The applied patch does not increase the total number of
protoc compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 checkstyle{color}.  The applied patch does not increase the total number
of checkstyle errors

    {color:green}+1 findbugs{color}.  The patch does not introduce any  new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:red}-1 lineLengths{color}.  The patch introduces the following lines longer than
100:
    +Coprocessors details are posted at link:https://blogs.apache.org/hbase/entry/coprocessor_introduction[Blog
Overview of CoProcessors].
+  The `hbase:meta` tables are forced into the block cache and have the in-memory priority
which means that they are harder to evict. 
+  The reason is that it's heavy on ZK usage, and it's not very async at the moment (could
really be improved).
+You can override the default split policy using a custom link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/regionserver/RegionSplitPolicy.html[RegionSplitPolicy].
Typically a custom split policy should extend
+The default split policy can be overwritten using a custom link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/regionserver/RegionSplitPolicy.html[RegionSplitPolicy].
Typically a custom split policy should extend HBase's default split policy: link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/regionserver/ConstantSizeRegionSplitPolicy.html[ConstantSizeRegionSplitPolicy].
+This section has been preserved for historical reasons. You can still use this behavior if
you enable <<compaction.ratiobasedcompactionpolicy.algorithm>>. For information
on the way that compactions work currently, see <<compaction>>.
+* `hbase.hstore.compaction.min` (files) Minimum number of StoreFiles per Store to be selected
for a compaction to occur (default 2).
+This configuration setting allows to check the Master to determine which data block encoders
are installed and configured on it, and assume that the entire cluster is configured the same.
+| | HBase-0.98.x (Support for Hadoop 1.1+ is deprecated.) | HBase-1.0.x (Hadoop 1.x is NOT
supported) | HBase-1.1.x | HBase-1.2.x
+HBase also offers `org.apache.hadoop.hbase.util.RegionSplitter`, providing a network-IO-safe
rolling split of all regions.

  {color:green}+1 site{color}.  The mvn post-site goal succeeds with this patch.

     {color:red}-1 core tests{color}.  The patch failed these unit tests:
     

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/15217//testReport/
Release Findbugs (version 2.0.3) 	warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/15217//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/15217//artifact/patchprocess/checkstyle-aggregate.html

  Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/15217//console

This message is automatically generated.

> Prune retired hbase versions from ref guide prereq support tables
> -----------------------------------------------------------------
>
>                 Key: HBASE-13696
>                 URL: https://issues.apache.org/jira/browse/HBASE-13696
>             Project: HBase
>          Issue Type: Task
>            Reporter: Sean Busbey
>            Assignee: Gabor Liptak
>              Labels: beginner
>         Attachments: HBASE-13696.1.patch
>
>
> the java table still contains HBase 0.96, and the Hadoop table still has HBase 0.92 and
0.96. We should remove these. Their details can still be found in their last release.



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