[HDFS-2250] open_read operation of NNbench is not working.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: test
• Tags: ygridqa
• Assignee: Unassigned
• Reporter: Suman Sehgal
• Created: 19/Mar/09 10:47
• Updated: 21/Jul/14 22:05
• Resolved: 21/Jul/14 22:05

Description

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.