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https://issues.apache.org/jira/browse/HDFS-2250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved HDFS-2250.
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Resolution: Fixed
I'm sure this is stale.
> open_read operation of NNbench is not working.
> ----------------------------------------------
>
> Key: HDFS-2250
> URL: https://issues.apache.org/jira/browse/HDFS-2250
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Reporter: Suman Sehgal
>
> NNBench's open_read operation is not working.
> On giving command "bin/hadoop hadoop-0.20.1-dev-test.jar nnbench -operation
> open_read", following error message is displayed :
> java.lang.ArithmeticException: / by zero
> at org.apache.hadoop.hdfs.NNBench.analyzeResults(NNBench.java:376)
> at org.apache.hadoop.hdfs.NNBench.main(NNBench.java:583)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> at org.apache.hadoop.test.AllTestDriver.main(AllTestDriver.java:81)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> map and reduce phases get completed and error comes while computing average
> execution time.
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