open_read operation of NNbench is not working.
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Key: HADOOP-5535
URL: https://issues.apache.org/jira/browse/HADOOP-5535
Project: Hadoop Core
Issue Type: Bug
Components: test
Affects Versions: 0.20.0
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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