Troubleshoot Azure HDInsight

Apache workload	Top questions
Troubleshoot Apache HBase	Unassigned regions Timeouts with 'hbase hbck' command in Azure HDInsight Apache Phoenix connectivity issues in Azure HDInsight What causes a primary server to fail to start? BindException - Address already in use
Troubleshoot Apache Hadoop HDFS	How do I access a local HDFS from inside a cluster? Local HDFS stuck in safe mode on Azure HDInsight cluster
Troubleshoot Apache Hive	How do I export a Hive metastore and import it on another cluster? How do I locate Apache Hive logs on a cluster? How do I launch the Apache Hive shell with specific configurations on a cluster? How do I analyze Apache Tez DAG data on a cluster-critical path? How do I download Apache Tez DAG data from a cluster?
Troubleshoot Apache Spark	How do I configure an Apache Spark application by using Apache Ambari on clusters? How do I configure an Apache Spark application by using a Jupyter Notebook on clusters? How do I configure an Apache Spark application by using Apache Livy on clusters? How do I configure an Apache Spark application by using spark-submit on clusters? How do I configure an Apache Spark application by using IntelliJ? How do I configure an Apache Spark application by using Eclipse? How do I configure an Apache Spark application by using VSCode? OutOfMemoryError exception for Apache Spark
Troubleshoot Apache Hadoop YARN	How do I create a new Apache Hadoop YARN queue on a cluster? How do I download Apache Hadoop YARN logs from a cluster?

HDInsight troubleshooting resources

For information about	See these articles
HDInsight on Linux and optimization	- Information about using HDInsight on Linux - Apache Hadoop memory and performance troubleshooting
Logs and dumps	- Access Apache Hadoop YARN application logs on Linux - Enable heap dumps for Apache Hadoop services on Linux
Errors	- Understand and resolve WebHCat errors - Apache Hive settings to fix OutofMemory error
Tools	- Optimize Apache Hive queries - HDInsight IntelliJ tool - HDInsight Eclipse tool - HDInsight VSCode tool - HDInsight Visual Studio tool

Next steps

If you didn't see your problem or are unable to solve your issue, visit one of the following channels for more support:

• Get answers from Azure experts through Azure Community Support.

• Connect with @AzureSupport - the official Microsoft Azure account for improving customer experience. Connecting the Azure community to the right resources: answers, support, and experts.

• If you need more help, you can submit a support request from the Azure portal. Select Support from the menu bar or open the Help + support hub. For more detailed information, review How to create an Azure support request. Access to Subscription Management and billing support is included with your Microsoft Azure subscription, and Technical Support is provided through one of the Azure Support Plans.