minni31 commented on pull request #3445:
URL: https://github.com/apache/hadoop/pull/3445#issuecomment-921631542
Thanks @ArkenKiran
With your changes, I tried running mapreduce pi example, it is failing with
NPE
hadoop jar
C:\RMCosmos\OpenTelemtryHadoop\hadoop\hadoop-dist\target\hadoop-3.4.0-SNAPSHOT\share\hadoop\mapreduce\hadoop-mapreduce-examples-3.4.0-SNAPSHOT.jar
pi 2 2
Number of Maps = 2
Samples per Map = 2
2021-09-17 14:27:37,367 WARN [DataStreamer for file
/user/mimittal/QuasiMonteCarlo_1631869056391_2017853234/in/part0 block
BP-346835553-172.20.0.1-1631788949347:blk_1073741834_1010] hdfs.DataStreamer
(DataStreamer.java:run(819)) - DataStreamer Exception
java.lang.NullPointerException
at org.apache.hadoop.tracing.Tracer.newSpan(Tracer.java:60)
at org.apache.hadoop.tracing.Tracer.newScope(Tracer.java:66)
at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:760)
java.io.IOException: java.lang.NullPointerException
at
org.apache.hadoop.hdfs.ExceptionLastSeen.set(ExceptionLastSeen.java:45)
at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:822)
Caused by: java.lang.NullPointerException
at org.apache.hadoop.tracing.Tracer.newSpan(Tracer.java:60)
at org.apache.hadoop.tracing.Tracer.newScope(Tracer.java:66)
at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:760)
Please help with debugging of the issue.
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