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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11339) HBase MOB
Date Tue, 14 Jul 2015 11:11:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14626198#comment-14626198
] 

Hadoop QA commented on HBASE-11339:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12745213/11339-master-v8.patch
  against master branch at commit a3d30892b41f604ab5a62d4f612fa7c230267dfe.
  ATTACHMENT ID: 12745213

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

    {color:green}+1 tests included{color}.  The patch appears to include 102 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:red}-1 checkstyle{color}.  The applied patch generated 1889 checkstyle
errors (more than the master's current 1873 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:
    +      family.setMobEnabled(JBoolean.valueOf(arg.delete(org.apache.hadoop.hbase.HColumnDescriptor::IS_MOB)))
if arg.include?(org.apache.hadoop.hbase.HColumnDescriptor::IS_MOB)
+      family.setMobThreshold(JLong.valueOf(arg.delete(org.apache.hadoop.hbase.HColumnDescriptor::MOB_THRESHOLD)))
if arg.include?(org.apache.hadoop.hbase.HColumnDescriptor::MOB_THRESHOLD)
+        @admin.compactMob(org.apache.hadoop.hbase.TableName.valueOf(table_name), family.to_java_bytes)
+        @admin.majorCompactMob(org.apache.hadoop.hbase.TableName.valueOf(table_name), family.to_java_bytes)

  {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:
                       org.apache.hadoop.hbase.rest.client.TestRemoteTable

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/14764//testReport/
Release Findbugs (version 2.0.3) 	warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/14764//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/14764//artifact/patchprocess/checkstyle-aggregate.html

                Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/14764//console

This message is automatically generated.

> HBase MOB
> ---------
>
>                 Key: HBASE-11339
>                 URL: https://issues.apache.org/jira/browse/HBASE-11339
>             Project: HBase
>          Issue Type: Umbrella
>          Components: regionserver, Scanners
>    Affects Versions: 2.0.0
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>             Fix For: hbase-11339
>
>         Attachments: 11339-master-v3.txt, 11339-master-v4.txt, 11339-master-v5.txt, 11339-master-v6.txt,
11339-master-v7.txt, 11339-master-v8.patch, 11339-master-v9.patch, HBase MOB Design-v2.pdf,
HBase MOB Design-v3.pdf, HBase MOB Design-v4.pdf, HBase MOB Design-v5.pdf, HBase MOB Design.pdf,
MOB user guide.docx, MOB user guide_v2.docx, MOB user guide_v3.docx, MOB user guide_v4.docx,
MOB user guide_v5.docx, hbase-11339-150519.patch, hbase-11339-in-dev.patch, hbase-11339.150417.patch,
merge-150212.patch, merge.150212b.patch, merge.150212c.patch, merge.150710.patch
>
>
>   It's quite useful to save the medium binary data like images, documents into Apache
HBase. Unfortunately directly saving the binary MOB(medium object) to HBase leads to a worse
performance since the frequent split and compaction.
>   In this design, the MOB data are stored in an more efficient way, which keeps a high
write/read performance and guarantees the data consistency in Apache HBase.



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