This site contains the documentation that is relevant to older WSO2 product versions and offerings.
For the latest WSO2 documentation, visit https://wso2.com/documentation/.
Clustering Task Server
For clustering the WSO2 Task Server or configuring WSO2 products for task handling, you need to use the CLUSTERED mode. See here for more information on how to set this.
Excluding that change, you can follow the standard worker/manager separated clustering process to cluster the Task Server.