Chapter 18. Clustering (sahara) Parameters

NotificationDriver

Driver or drivers to handle sending notifications. The default value is messagingv2.

NtpServer

NTP servers list. Defaulted to a set of pool.ntp.org servers in order to have a sane default for Pacemaker deployments when not configuring this parameter by default. The default value is ['0.pool.ntp.org', '1.pool.ntp.org', '2.pool.ntp.org', '3.pool.ntp.org'].

SaharaPassword

The password for the clusting service and database account.

SaharaPlugins

Clustering enabled plugin list. The default value is ['ambari', 'cdh', 'mapr', 'vanilla', 'spark', 'storm'].

SaharaWorkers

Set the number of workers for the clustering service. Note that more workers creates a larger number of processes on systems, which results in excess memory consumption. It is recommended to choose a suitable non-default value on systems with high CPU core counts. 0 sets to the OpenStack internal default, which is equal to the number of CPU cores on the node. The default value is 0.