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https://issues.apache.org/jira/browse/HDFS-4046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13484313#comment-13484313
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Hadoop QA commented on HDFS-4046:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12550792/HDFS-4096-ChecksumTypeProto-NULL.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:green}+1 core tests{color}. The patch passed unit tests in
hadoop-hdfs-project/hadoop-hdfs.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/3399//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3399//console
This message is automatically generated.
> ChecksumTypeProto use NULL as enum value which is illegal in C/C++
> ------------------------------------------------------------------
>
> Key: HDFS-4046
> URL: https://issues.apache.org/jira/browse/HDFS-4046
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Binglin Chang
> Assignee: Binglin Chang
> Priority: Minor
> Attachments: HDFS-4046-ChecksumType-NULL-and-TestAuditLogs-bug.patch,
> HDFS-4046-ChecksumType-NULL.patch, HDFS-4096-ChecksumTypeProto-NULL.patch
>
>
> I tried to write a native hdfs client using protobuf based protocol, when I
> generate c++ code using hdfs.proto, the generated file can not compile,
> because NULL is an already defined macro.
> I am thinking two solutions:
> 1. refactor all DataChecksum.Type.NULL references to NONE, which should be
> fine for all languages, but this may breaking compatibility.
> 2. only change protobuf definition ChecksumTypeProto.NULL to NONE, and use
> enum integer value(DataChecksum.Type.id) to convert between ChecksumTypeProto
> and DataChecksum.Type, and make sure enum integer values are match(currently
> already match).
> I can make a patch for solution 2.
>
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