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https://issues.apache.org/jira/browse/HADOOP-7076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12978206#action_12978206
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Hadoop QA commented on HADOOP-7076:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12467585/HADOOP-7076.patch
against trunk revision 1055206.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 9 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
-1 javac. The applied patch generated 1049 javac compiler warnings (more
than the trunk's current 1048 warnings).
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
-1 release audit. The applied patch generated 2 release audit warnings
(more than the trunk's current 1 warnings).
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
+1 system test framework. The patch passed system test framework compile.
Test results:
https://hudson.apache.org/hudson/job/PreCommit-HADOOP-Build/159//testReport/
Release audit warnings:
https://hudson.apache.org/hudson/job/PreCommit-HADOOP-Build/159//artifact/trunk/patchprocess/patchReleaseAuditProblems.txt
Findbugs warnings:
https://hudson.apache.org/hudson/job/PreCommit-HADOOP-Build/159//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
https://hudson.apache.org/hudson/job/PreCommit-HADOOP-Build/159//console
This message is automatically generated.
> Splittable Gzip
> ---------------
>
> Key: HADOOP-7076
> URL: https://issues.apache.org/jira/browse/HADOOP-7076
> Project: Hadoop Common
> Issue Type: New Feature
> Components: io
> Reporter: Niels Basjes
> Attachments: HADOOP-7076.patch
>
>
> Files compressed with the gzip codec are not splittable due to the nature of
> the codec.
> This limits the options you have scaling out when reading large gzipped input
> files.
> Given the fact that gunzipping a 1GiB file usually takes only 2 minutes I
> figured that for some use cases wasting some resources may result in a
> shorter job time under certain conditions.
> So reading the entire input file from the start for each split (wasting
> resources!!) may lead to additional scalability.
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