Tuning Ambari performance

Ambari-managed clusters larger that 100 nodes may require tuning to perform optimally.

For clusters larger than 100 nodes, consider the following tuning options:

• Increase available memory by adjusting heap size based on the number of cluster nodes.
• Set a new, larger cache size.
• Adjust the JDBC connection pool settings.
• Increase Wait Timeout and Interacitve Timeout Settings.
• Increase available memory by adjusting heap size based on the number of cluster nodes.
• For clusters larger than 1500 nodes, configure Ambari agents for optimum performance

After performing one or more of these options, restart Ambari server for the option(s) to take effect.

ambari-server restart

If you are using the Ambari Metrics service, you might want to consider switching from the default embedded mode to distributed mode, as well as other tuning options.