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https://issues.apache.org/jira/browse/HADOOP-12194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14617070#comment-14617070
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Ravi Prakash commented on HADOOP-12194:
---------------------------------------
The stack trace when I run with {{mvn -X}} is:
{code}
Caused by: java.io.FileNotFoundException: Specified protoc include or source
does not exist:
/home/raviprak/Code/hadoop/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/proto/server
at
org.apache.hadoop.maven.plugin.protoc.ProtocMojo$ChecksumComparator.hasChanged(ProtocMojo.java:92)
at
org.apache.hadoop.maven.plugin.protoc.ProtocMojo.execute(ProtocMojo.java:203)
... 21 more
{code}
> Support for incremental generation in the protoc plugin
> -------------------------------------------------------
>
> Key: HADOOP-12194
> URL: https://issues.apache.org/jira/browse/HADOOP-12194
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 2.0.6-alpha
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Attachments: hadoop-12194.001.patch
>
>
> The protoc maven plugin currently generates new Java classes every time,
> which means Maven always picks up changed files in the build. It would be
> better if the protoc plugin only generated new Java classes when the source
> protoc files change.
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