Apache Zookeeper (Experimental)

Info:

This template creates, scale in and scale out a multinodes zk (zookeeper) cluster on top of Rancher. The configuration is generated with confd from Rancher metadata. Cluster size are variable after deployment, and get reconfigured if refresh interval > 0.

Usage:

Select Apache Zookeeper from catalog.

Enter the number of nodes, mem and refresh interval for the zk cluster. (set refresh data to 0 to disable dinamic config)

Change the following zookeeper default parameters, if you need:

ZK_DATA_DIR="/opt/zk/data"
ZK_INIT_LIMIT="10"
ZK_MAX_CLIENT_CXNS="500"
ZK_SYNC_LIMIT="5"
ZK_TICK_TIME="2000"

Click deploy.

Zookeeper can now be accessed over the Rancher network.

Note: When you scale the cluster, zero downtime is expected...