Ambari Troubleshooting Guide
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2014-04-22
Abstract
The Hortonworks Data Platform, powered by Apache Hadoop, is a massively scalable and 100% open source platform for storing, processing and analyzing large volumes of data. It is designed to deal with data from many sources and formats in a very quick, easy and cost-effective manner. The Hortonworks Data Platform consists of the essential set of Apache Hadoop projects including MapReduce, Hadoop Distributed File System (HDFS), HCatalog, Pig, Hive, HBase, Zookeeper and Ambari. Hortonworks is the major contributor of code and patches to many of these projects. These projects have been integrated and tested as part of the Hortonworks Data Platform release process and installation and configuration tools have also been included.
Unlike other providers of platforms built using Apache Hadoop, Hortonworks contributes 100% of our code back to the Apache Software Foundation. The Hortonworks Data Platform is Apache-licensed and completely open source. We sell only expert technical support, training and partner-enablement services. All of our technology is, and will remain free and open source. Please visit the Hortonworks Data Platform page for more information on Hortonworks technology. For more information on Hortonworks services, please visit either the Support or Training page. Feel free to Contact Us directly to discuss your specific needs.
Contents
- 1. Troubleshooting Ambari Deployments
- 1. Reviewing Ambari Log Files
- 2. Resolving Ambari Installer Problems
- 2.1. Problem: Browser crashed before Install Wizard completes
- 2.2. Problem: Install Wizard reports that the cluster install has failed
- 2.3. Problem: Ambari Agents May Fail to Register with Ambari Server.
- 2.4. Problem: The “yum install ambari-server” Command Fails
- 2.5. Problem: HDFS Smoke Test Fails
- 2.6. Problem: yum Fails on Free Disk Space Check
- 2.7. Problem: The HCatalog Daemon Metastore Smoke Test Fails
- 2.8. Problem: A service with a customized service user is not appearing properly in Ambari Web
- 3. Resolving Cluster Deployment Problems
- 3.1. Problem: Trouble Starting Ambari on System Reboot
- 3.2. Problem: Metrics and Host information display incorrectly in Ambari Web
- 3.3. Problem: On SUSE 11 Ambari Agent crashes within the first 24 hours
- 3.4. Problem: Attempting to Start HBase REST server causes either REST server or Ambari Web to fail
- 3.5. Problem: Multiple Ambari Agent processes are running, causing re-register
- 3.6. Problem: Some graphs do not show a complete hour of data until the cluster has been running for an hour
- 3.7. Problem: Ambari stops MySQL database during deployment, causing Ambari Server to crash.
- 3.8. Problem: Service Fails with Unknown Host Exception
- 4. Resolving General Problems
