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https://issues.apache.org/jira/browse/HADOOP-16049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16747906#comment-16747906
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Steve Loughran commented on HADOOP-16049:
-----------------------------------------
checkstyle
{code}
./hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/RetriableFileCopyCommand.java:300:
private static int readBytes(ThrottledInputStream inStream, byte buf[]):71:
Array brackets at illegal position.
{code}
must be: {{byte[] buf}}}
ASF license is from a crashed jvm
{code}
Lines that start with ????? in the ASF License report indicate files that do
not have an Apache license header:
!????? /testptch/hadoop/hadoop-tools/hadoop-distcp/hs_err_pid2744.log
{code}
Don't see anything in the tests resembling failures., though there was a
timeout.
There is a warning in the logs about azure storage versions,
{code}
[WARNING] Some problems were encountered while building the effective model for
org.apache.hadoop:hadoop-distcp:jar:2.10.0-SNAPSHOT
[WARNING]
'dependencyManagement.dependencies.dependency.(groupId:artifactId:type:classifier)'
must be unique: com.microsoft.azure:azure-storage:jar -> version 7.0.0 vs
5.4.0 @ org.apache.hadoop:hadoop-project:2.10.0-SNAPSHOT,
/testptch/hadoop/hadoop-project/pom.xml, line 1151, column 19
{code}
How about you fix the checkstyle and resubmit it -we can see if that timeout
was a transient error or not
> DistCp result has data and checksum mismatch when blocks per chunk > 0
> ----------------------------------------------------------------------
>
> Key: HADOOP-16049
> URL: https://issues.apache.org/jira/browse/HADOOP-16049
> Project: Hadoop Common
> Issue Type: Bug
> Components: tools/distcp
> Affects Versions: 2.9.2
> Reporter: Kai Xie
> Assignee: Kai Xie
> Priority: Major
> Attachments: HADOOP-16049-branch-2-003.patch,
> HADOOP-16049-branch-2-003.patch, HADOOP-16049-branch-2-004.patch
>
>
> In 2.9.2 RetriableFileCopyCommand.copyBytes,
> {code:java}
> int bytesRead = readBytes(inStream, buf, sourceOffset);
> while (bytesRead >= 0) {
> ...
> if (action == FileAction.APPEND) {
> sourceOffset += bytesRead;
> }
> ... // write to dst
> bytesRead = readBytes(inStream, buf, sourceOffset);
> }{code}
> it does a positioned read but the position (`sourceOffset` here) is never
> updated when blocks per chunk is set to > 0 (which always disables append
> action). So for chunk with offset != 0, it will keep copying the first few
> bytes again and again, causing result to have data & checksum mismatch.
> To re-produce this issue, in branch-2, update BLOCK_SIZE to 10240 (> default
> copy buffer size) in class TestDistCpSystem and run it.
> HADOOP-15292 has resolved the issue reported in this ticket in
> trunk/branch-3.1/branch-3.2 by not using the positioned read, but has not
> been backported to branch-2 yet
>
>
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