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https://issues.apache.org/jira/browse/TEZ-3330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15556137#comment-15556137
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TezQA commented on TEZ-3330:
----------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12832178/TEZ-3330.01.patch
against master revision dceb365.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 8 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}. There were no new javadoc warning messages.
{color:red}-1 findbugs{color}. The patch appears to introduce 1 new
Findbugs (version 3.0.1) 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 .
Test results:
https://builds.apache.org/job/PreCommit-TEZ-Build/2025//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-TEZ-Build/2025//artifact/patchprocess/newPatchFindbugsWarningstez-dag.html
Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/2025//console
This message is automatically generated.
> Error on avro M/R job with Tez: missing configuration property
> --------------------------------------------------------------
>
> Key: TEZ-3330
> URL: https://issues.apache.org/jira/browse/TEZ-3330
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Manuel Godbert
> Assignee: Siddharth Seth
> Labels: newbie
> Attachments: TEZ-3330.01.patch, TEZ-3330.temp.2.patch,
> TEZ-3330.temp.patch
>
>
> I tried running the simple avro M/R job MapredColorCount, that I found in the
> examples of avro release 1.7.7.
> It failed with the following trace:
> {code}
> errorMessage=Shuffle Runner
> Failed:org.apache.tez.runtime.library.common.shuffle.orderedgrouped.Shuffle$ShuffleError:
> Error while doing final merge
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.Shuffle$RunShuffleCallable.callInternal(Shuffle.java:378)
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.Shuffle$RunShuffleCallable.callInternal(Shuffle.java:337)
> at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:744)
> Caused by: java.lang.NullPointerException
> at java.io.StringReader.<init>(StringReader.java:50)
> at org.apache.avro.Schema$Parser.parse(Schema.java:917)
> at org.apache.avro.Schema.parse(Schema.java:966)
> at org.apache.avro.mapred.AvroJob.getMapOutputSchema(AvroJob.java:78)
> at
> org.apache.avro.mapred.AvroKeyComparator.setConf(AvroKeyComparator.java:39)
> at
> org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:76)
> at
> org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:136)
> at
> org.apache.tez.runtime.library.common.ConfigUtils.getIntermediateInputKeyComparator(ConfigUtils.java:133)
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.MergeManager.finalMerge(MergeManager.java:915)
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.MergeManager.close(MergeManager.java:540)
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.Shuffle$RunShuffleCallable.callInternal(Shuffle.java:376)
> ... 6 more
> {code}
> Digging a bit I saw that during shuffle Tez can't access some of the
> configuration properties of the job. In our example it is the
> avro.output.schema that is missing.
> With some more complicated code I could get one step further and a similar
> issue happened when the valuesIterator for the reducer was being built:
> {code}
> java.lang.NullPointerException
> at java.io.StringReader.<init>(StringReader.java:50)
> at org.apache.avro.Schema$Parser.parse(Schema.java:917)
> at org.apache.avro.Schema.parse(Schema.java:966)
> at org.apache.avro.mapred.AvroJob.getMapOutputSchema(AvroJob.java:78)
> at
> org.apache.avro.mapred.AvroSerialization.getDeserializer(AvroSerialization.java:53)
> at
> org.apache.hadoop.io.serializer.SerializationFactory.getDeserializer(SerializationFactory.java:90)
> at
> org.apache.tez.runtime.library.common.ValuesIterator.<init>(ValuesIterator.java:80)
> at
> org.apache.tez.runtime.library.input.OrderedGroupedKVInput.createValuesIterator(OrderedGroupedKVInput.java:287)
> {code}
> I am using HDP2.4, Tez 0.7.0, avro 1.7.4
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