Hadoop Troubleshooting Guide - Eric's Blog

Hadoop Troubleshooting Guide – Eric's Blog

How to Restrict Users From Updating Hive Settings

As an administrator to manage a Hive cluster, sometimes it is needed to restrict users from updating certain Hive settings from client side. One particular example is mapred.job.queue.name or newer name mapreduce.job.queuename, where we might not want users to blindly submitting to any queues in YARN. To achieve this, Hive …


Sqoop Job Failed with Error: java.lang.NoClassDefFoundError: org/json/JSONObject

If your Sqoop job fails with below error message: This is very likely caused by conflicting JAR files being loaded by sqoop, and mostly related to JAR files under /usr/lib/hive directory, which is normally created by package installation of Sqoop, rather than via Parcels through Cloudera Manager. The solution is …


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