Configuring for very large clusters

OpsCenter can manage clusters containing multiple hundreds of nodes. When managing very large clusters with up to 1000 nodes, adjusting cluster configuration settings improves performance.

cluster_name.conf 

The location of the cluster_name.conf file depends on the type of installation:

  • Installer-Services or package installations: /etc/opscenter/clusters/cluster_name.conf
  • Installer-No Services or tarball installations: install_location/conf/clusters/cluster_name.conf
  • Windows installations: Program Files (x86)\DataStax Community\opscenter\conf\clusters\cluster_name.conf

OpsCenter can manage very large clusters up to 1000 nodes. When working with very large clusters, the performance of OpsCenter decreases with the default settings. To improve performance, adjust the cluster settings to increase the time period between polls of a cluster's nodes and token lists.

After a very large cluster has been added to OpsCenter, change the following setting in cluster_name.conf.

Procedure

  1. Increase the node list poll period to 30 minutes by setting the nodelist_poll_period option to 1800 under [collection].
    [collection]
    nodelist_poll_period = 1800
  2. Restart OpsCenter.