Details
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Bug
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Status: Resolved
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Minor
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Resolution: Won't Fix
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2.7.3, 3.0.0-alpha2
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None
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None
Description
When I use -seq arg to write files, TestDFSIO#sequentialTest throws java.lang.NullPointerException due to uninitialized stream inherited from IOMapperBase:
[root@7b65290f2609 hadoop-3.0.0-alpha3-SNAPSHOT]# bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-3.0.0-alpha3-SNAPSHOT-tests.jar TestDFSIO -seq -write 2017-04-20 15:50:43,505 INFO fs.TestDFSIO: TestDFSIO.1.8 2017-04-20 15:50:43,510 INFO fs.TestDFSIO: nrFiles = 1 2017-04-20 15:50:43,510 INFO fs.TestDFSIO: nrBytes (MB) = 1.0 2017-04-20 15:50:43,510 INFO fs.TestDFSIO: bufferSize = 1000000 2017-04-20 15:50:43,510 INFO fs.TestDFSIO: baseDir = /benchmarks/TestDFSIO 2017-04-20 15:50:43,655 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable java.lang.NullPointerException at org.apache.hadoop.fs.TestDFSIO$WriteMapper.doIO(TestDFSIO.java:427) at org.apache.hadoop.fs.TestDFSIO$WriteMapper.doIO(TestDFSIO.java:395) at org.apache.hadoop.fs.TestDFSIO.sequentialTest(TestDFSIO.java:722) at org.apache.hadoop.fs.TestDFSIO.run(TestDFSIO.java:846) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90) at org.apache.hadoop.fs.TestDFSIO.main(TestDFSIO.java:731) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71) at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144) at org.apache.hadoop.test.MapredTestDriver.run(MapredTestDriver.java:136) at org.apache.hadoop.test.MapredTestDriver.main(MapredTestDriver.java:144) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.util.RunJar.run(RunJar.java:239) at org.apache.hadoop.util.RunJar.main(RunJar.java:153)
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