Hortonworks Data Platform

Ambari Troubleshooting Guide

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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.

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1. Troubleshooting Ambari Deployments
1. Troubleshooting Ambari Issues
2. Reviewing Ambari Log Files
3. Resolving Ambari Installer Problems
3.1. Problem: Browser crashed before Install Wizard completes
3.2. Problem: Install Wizard reports that the cluster install has failed
3.3. Problem: Ambari Agents May Fail to Register with Ambari Server.
3.4. Problem: The “yum install ambari-server” Command Fails
3.5. Problem: HDFS Smoke Test Fails
3.6. Problem: yum Fails on Free Disk Space Check
3.7. Problem: A service with a customized service user is not appearing properly in Ambari Web
4. Resolving Cluster Deployment Problems
4.1. Problem: Trouble Starting Ambari on System Reboot
4.2. Problem: Metrics and Host information display incorrectly in Ambari Web
4.3. Problem: On SUSE 11 Ambari Agent crashes within the first 24 hours
4.4. Problem: Attempting to Start HBase REST server causes either REST server or Ambari Web to fail
4.5. Problem: Multiple Ambari Agent processes are running, causing re-register
4.6. Problem: Ambari stops MySQL database during deployment, causing Ambari Server to crash.
4.7. Problem: Cluster Install Fails with Groupmod Error
4.8. Problem: Host registration fails during Agent bootstrap on SLES due to timeout.
4.9. Problem: Host Check Fails if Transparent Huge Pages (THP) is not disabled.
5. Resolving General Problems
5.1. During Enable Kerberos, the Check Kerberos operation fails.
5.2. Problem: Hive developers may encounter an exception error message during Hive Service Check
5.3. Problem: API calls for PUT, POST, DELETE respond with a "400 - Bad Request"

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