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Posted to mapreduce-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2013/11/26 21:45:36 UTC
[jira] [Commented] (MAPREDUCE-5656) bzip2 codec can drop records
when reading data in splits
[ https://issues.apache.org/jira/browse/MAPREDUCE-5656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13833031#comment-13833031 ]
Hadoop QA commented on MAPREDUCE-5656:
--------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12615899/MAPREDUCE-5656.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author tags.
{color:green}+1 tests included{color}. The patch appears to include 2 new or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests in hadoop-common-project/hadoop-common hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core:
org.apache.hadoop.mapred.TestLineRecordReader
org.apache.hadoop.mapreduce.lib.input.TestLineRecordReader
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4232//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4232//console
This message is automatically generated.
> bzip2 codec can drop records when reading data in splits
> --------------------------------------------------------
>
> Key: MAPREDUCE-5656
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5656
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.0.4-alpha, 0.23.8
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Priority: Critical
> Attachments: HADOOP-9622-2.patch, HADOOP-9622-testcase.patch, HADOOP-9622.patch, MAPREDUCE-5656.patch, blockEndingInCR.txt.bz2, blockEndingInCRThenLF.txt.bz2
>
>
> Bzip2Codec.BZip2CompressionInputStream can cause records to be dropped when reading them in splits based on where record delimiters occur relative to compression block boundaries.
> Thanks to [~knoguchi] for discovering this problem while working on PIG-3251.
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