Troubleshooting Oozie or other Hadoop errors with DEBUG logging

In troubleshooting Hadoop issues, we often need to review the logging of a specific Hadoop component. By default, the logging level is set to INFO or WARN for many Hadoop components like Oozie, Hive etc. and in many cases this level of logging is sufficient to trace the issue. However, in certain cases, INFO or…

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Problems When Using a Shared Default Storage Container with Multiple HDInsight Clusters

We have seen several cases come in to Microsoft Support that ended up being caused by having multiple HDInsight clusters using the same Azure Blob Storage container for default storage. While we don’t currently block you from creating clusters using the same default storage container, we do know that this can cause some specific problems….

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Some Commonly Used Yarn Memory Settings

We were recently working on an out of memory issue that was occurring with certain workloads on HDInsight clusters. I thought it might be a good time to write on this topic based on all the current experience troubleshooting some memory issues. There are a few memory settings that can be tuned to suit your specific…