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https://issues.apache.org/jira/browse/MAPREDUCE-3039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13108312#comment-13108312
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Joep Rottinghuis commented on MAPREDUCE-3039:
---------------------------------------------
I think I have the answer. When compiling this on my Ubuntu 11.04 desktop with
JDK 1.6.0_26, Utf8 is allowed in place of Charsequence.
However, our jenkins server running 1.6.0_16 just spat out a bunch of
compilation errors:
compile-mapred-classes:
[jsp-compile] 11/09/19 18:20:40 WARN compiler.TldLocationsCache: Internal
Error: File /WEB-INF/web.xml not found
[javac]
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/build.xml:380:
warning: 'includeantruntime' was not set, defaulting to
build.sysclasspath=last; set to false for repeatable builds
[javac] Compiling 524 source files to
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/build/classes
[javac]
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/src/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java:87:
incompatible types
[javac] found : org.apache.avro.util.Utf8
[javac] required: java.lang.CharSequence
[javac] result.name = new Utf8(name);
[javac] ^
[javac]
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/src/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java:88:
incompatible types
[javac] found :
org.apache.avro.generic.GenericData.Array<org.apache.hadoop.mapreduce.jobhistory.JhCounterGroup>
[javac] required:
java.util.List<org.apache.hadoop.mapreduce.jobhistory.JhCounterGroup>
[javac] result.groups = new GenericData.Array<JhCounterGroup>(0,
GROUPS);
[javac] ^
[javac]
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/src/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java:92:
incompatible types
[javac] found : org.apache.avro.util.Utf8
[javac] required: java.lang.CharSequence
[javac] g.name = new Utf8(group.getName());
[javac] ^
[javac]
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/src/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java:93:
incompatible types
[javac] found : org.apache.avro.util.Utf8
[javac] required: java.lang.CharSequence
[javac] g.displayName = new Utf8(group.getDisplayName());
[javac] ^
[javac]
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/src/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java:94:
incompatible types
[javac] found :
org.apache.avro.generic.GenericData.Array<org.apache.hadoop.mapreduce.jobhistory.JhCounter>
[javac] required:
java.util.List<org.apache.hadoop.mapreduce.jobhistory.JhCounter>
[javac] g.counts = new GenericData.Array<JhCounter>(group.size(),
COUNTERS);
[javac] ^
[javac]
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/src/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java:97:
incompatible types
[javac] found : org.apache.avro.util.Utf8
[javac] required: java.lang.CharSequence
[javac] c.name = new Utf8(counter.getName());
[javac] ^
[javac]
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/src/java/org/apache/hadoop/mapreduce/jobhistory/EventWriter.java:98:
incompatible types
[javac] found : org.apache.avro.util.Utf8
[javac] required: java.lang.CharSequence
[javac] c.displayName = new Utf8(counter.getDisplayName());
[javac] ^
[javac]
/hadoop01/jenkins/jobs/hadoop-mapreduce-SNAPSHOT/workspace/mapreduce/src/java/org/apache/hadoop/mapreduce/jobhistory/TaskAttemptFinishedEvent.java:56:
incompatible types
etc. etc.
Will remove the UTf8 and submit new patch.
> Make mapreduce use same version of avro as HBase
> ------------------------------------------------
>
> Key: MAPREDUCE-3039
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3039
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/capacity-sched, contrib/fair-share,
> contrib/gridmix, contrib/mrunit, contrib/mumak, contrib/raid,
> contrib/streaming, jobhistoryserver
> Affects Versions: 0.22.0
> Reporter: Joep Rottinghuis
> Assignee: Joep Rottinghuis
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-3039-branch-0.22.patch
>
>
> HBase depends on avro 1.5.3 whereas hadoop-common depends on 1.3.2.
> When building HBase on top of hadoop, this should be consistent.
> Moreover, this should be consistent between common, hdfs, and mapreduce.
> Contribs seem to have declared a dependency on avro but are not in fact
> depending on it.
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