Cisco Cisco Workload Automation 6.3 Guida Utente
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Troubleshooting the MapReduce Adapter
Adapter Is Out-of-Memory
Verify your job can be run via the Hadoop CLI before running thru CWA.
Check the Adapter logs and verify how your job ran from the Hadoop Admin Console.
Verify the file paths and names are case-sensitive and that they exist on the HDFS.
Class Not Found Exception.
Verify that the job JAR, as well as all referenced library JARs, exists in HDFS and that the path specified is correct.
Adapter Is Out-of-Memory
Adapter memory sizes are verified on a 10-node cluster and can be increased in the Adapter service.props.
Output Files Cannot Be Viewed
The output file either contains binary data or its size is greater than default size 1MB.
MapReduce Job Runs Fine on the Hadoop Client but Fails via CWA
Adapter
Adapter
Most likely, your CWA MapReduce job configuration is not setup correctly. Compare the Hadoop job configuration file on the
cluster with CWA to resolve the problem (See your Cisco Workload Automation User Guide for capturing Hadoop job
configuration on CWA master.)
cluster with CWA to resolve the problem (See your Cisco Workload Automation User Guide for capturing Hadoop job
configuration on CWA master.)