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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4055) TestAuditLogs has some chances to fail.
Date Mon, 15 Oct 2012 22:19:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13476518#comment-13476518
] 

Hadoop QA commented on HDFS-4055:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12549203/HDFS-4055-TestAuditLogs-bug.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 1 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-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.server.datanode.TestHSync

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/3334//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3334//console

This message is automatically generated.
                
> TestAuditLogs has some chances to fail.
> ---------------------------------------
>
>                 Key: HDFS-4055
>                 URL: https://issues.apache.org/jira/browse/HDFS-4055
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Binglin Chang
>            Assignee: Binglin Chang
>         Attachments: HDFS-4055-TestAuditLogs-bug.patch
>
>
> {code}
>     InputStream istream = webfs.open(file);
>     int val = istream.read();
>     istream.close();
>     verifyAuditLogsRepeat(true, 3);
>     assertTrue("failed to read from file", val >= 0);
> {code}
> {code}
>     byte[] toWrite = new byte[bufferLen];
>     Random rb = new Random(seed);
>     long bytesToWrite = fileLen;
>     while (bytesToWrite>0) {
>       rb.nextBytes(toWrite);
> {code}
> InputStream.read() return the first byte of the file, the bytes in the file is generated
in using Random.nextBytes(), so you get 1/256 chance the first byte is 0, so some times it
may fail.

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