Exception while running mapreduce example in mongo-hadoop

Question

While am trying to run the example its showing some exception.I had referred the below link for reference

http://docs.mongodb.org/ecosystem/tutorial/getting-started-with-hadoop/

The exception as below,

 hduser@adminpc:/mongo-hadoop$ sudo ./gradlew jar testJar historicalYield
[sudo] password for hduser: 
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:jar UP-TO-DATE
:core:compileJava UP-TO-DATE
:core:processResources UP-TO-DATE
:core:classes UP-TO-DATE
:core:jar UP-TO-DATE
:examples/enron:compileJava UP-TO-DATE
:examples/enron:processResources UP-TO-DATE
:examples/enron:classes UP-TO-DATE
:examples/enron:jar UP-TO-DATE
:examples/sensors:compileJava UP-TO-DATE
:examples/sensors:processResources UP-TO-DATE
:examples/sensors:classes UP-TO-DATE
:examples/sensors:jar UP-TO-DATE
:examples/treasury_yield:compileJava UP-TO-DATE
:examples/treasury_yield:processResources UP-TO-DATE
:examples/treasury_yield:classes UP-TO-DATE
:examples/treasury_yield:jar UP-TO-DATE
:flume:compileJava UP-TO-DATE
:flume:processResources UP-TO-DATE
:flume:classes UP-TO-DATE
:flume:jar UP-TO-DATE
:hive:compileJava UP-TO-DATE
:hive:processResources UP-TO-DATE
:hive:classes UP-TO-DATE
:hive:jar UP-TO-DATE
:integration-tests:compileJava UP-TO-DATE
:integration-tests:processResources UP-TO-DATE
:integration-tests:classes UP-TO-DATE
:integration-tests:jar UP-TO-DATE
:pig:compileJava UP-TO-DATE
:pig:processResources UP-TO-DATE
:pig:classes UP-TO-DATE
:pig:jar UP-TO-DATE
:streaming:compileJava
:streaming:processResources UP-TO-DATE
:streaming:classes
:streaming:jar UP-TO-DATE
:core:compileTestJava UP-TO-DATE
:core:processTestResources UP-TO-DATE
:core:testClasses UP-TO-DATE
:core:testsJar UP-TO-DATE
:examples/enron:compileTestJava UP-TO-DATE
:examples/enron:processTestResources UP-TO-DATE
:examples/enron:testClasses UP-TO-DATE
:examples/enron:testsJar UP-TO-DATE
:examples/sensors:compileTestJava UP-TO-DATE
:examples/sensors:processTestResources UP-TO-DATE
:examples/sensors:testClasses UP-TO-DATE
:examples/sensors:testsJar UP-TO-DATE
:examples/treasury_yield:compileTestJava
:examples/treasury_yield:processTestResources UP-TO-DATE
:examples/treasury_yield:testClasses
:examples/treasury_yield:testsJar UP-TO-DATE
:flume:compileTestJava UP-TO-DATE
:flume:processTestResources UP-TO-DATE
:flume:testClasses UP-TO-DATE
:flume:testsJar UP-TO-DATE
:hive:compileTestJava UP-TO-DATE
:hive:processTestResources UP-TO-DATE
:hive:testClasses UP-TO-DATE
:hive:testsJar UP-TO-DATE
:integration-tests:compileTestJava UP-TO-DATE
:integration-tests:processTestResources UP-TO-DATE
:integration-tests:testClasses UP-TO-DATE
:integration-tests:testsJar UP-TO-DATE
:pig:compileTestJava UP-TO-DATE
:pig:processTestResources
:pig:testClasses
:pig:testsJar UP-TO-DATE
:streaming:compileTestJava UP-TO-DATE
:streaming:processTestResources UP-TO-DATE
:streaming:testClasses UP-TO-DATE
:streaming:testsJar UP-TO-DATE
:installHadoop
:installHive
:installPig
:copyFiles
Updating mongo jars
Updating cluster configuration
:startCluster FAILED

 FAILURE: Build failed with an exception.

 * Where:
 Script '/mongo-hadoop/gradle/hadoop.gradle' line: 96

 * What went wrong:
 Execution failed for task ':startCluster'.
> Cannot convert the provided notation to a File or URI: false.
The following types/formats are supported:
- A String or CharSequence path, e.g 'src/main/java' or '/usr/include'
- A String or CharSequence URI, e.g 'file:/usr/include'
- A File instance.
- A URI or URL instance.

* Try:
 Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

please help me to sort out this issue.

Any help is appreciated.

Answer 1

I suspect you may have hit the issue fixed by this commit

* Where:
 Script '/mongo-hadoop/gradle/hadoop.gradle' line: 96

Basically - the error message is telling you that the script failed on line 96 of hadoop.gradle. If you look at this file (either locally or on the mongodb github), you see it is trying to delete hadoop-tmpdir. The error message further tells you that it can't resolve the argument passed to delete to a file.

Note the most recent commit on the github is called "Fix gradle delete for hadoop-tmpdir"

Try editing your hadoop.gradle to match the one currently checked in on git.