Cluster deployment

Agents can be deployed to a cluster, a cluster may contain a single server or multiple servers.

Please note that you need to set up your servers or/and clusters before you will be able to deploy your agents. Check Servers & Clusters for more information about servers and clusters, how to set them up, and differences between them.

Agents can be deployed to a cluster via the ACC Web Portal or the Sequentum Enterprise (Desktop). This article also covers how to view and manage cluster deployments.

Managing Cluster Deployments in ACC Web Portal

This section covers details on the management of cluster deployments in the Agent Control Center web portal.

Deploying an Agent to Cluster

In the Agent Repository page, find the agent you want to deploy. Then, select “Deploy to Cluster” from the context menu of the Latest Version.

In a pop-up window, select or type a cluster name you wish to deploy your agent to, and then finally click “Save”.

Deploy agent's latest version to cluster

If a new version of an agent becomes available, you may want to deploy the latest version to a cluster.
To deploy the latest version of your agent to a cluster, select “Deploy to Cluster” from the context menu of the Latest Version.

Run agent on cluster

To run your agent on a cluster, select “Run on Cluster” from a context menu.

Then, on the “Run Agent” pop up screen, set the run parameters and then press the “Run” button.

Environment - Allows users to choose an environment to run their agents, options are production (PROD), Development (DEV) and testing (QA).

Windowless – This feature is utilized for executing agents with or without headers. Certain websites, particularly those employing Flex applications, exhibit improved performance in windowless mode. Conversely, some websites may perform better in windowed mode. ACC offers users the flexibility to run their jobs in either windowed or windowless mode, with the default value set to 'Windowless = true'.

Job-  Enables the execution of a scrape within a single job, which can encompass multiple sessions. The status of a job is considered 'completed' only when all the sessions/runs associated with it have successfully concluded.

Session ID - Sessions provide the capability to simultaneously execute multiple instances of the same agent. To initiate an agent in a session, it's necessary to specify a session ID during the agent's execution, and the agent must be appropriately configured to support sessions, such as in performance or multiple session modes. For example, if aiming to run the agent in 5 performance sessions, you can specify session IDs as 1-5/5. This will initiate 5 sessions labeled 1/5, 2/5, 3/5, 4/5, and 5/5.

Log Level – Through this level of the logging can be set, there are mainly three types of logging in this,

1. Low

2. Medium

3. High

We can choose the logging level from this option.

Input Parameters – Customized input parameters that can be used in the agent as per the requirement of an agent (if required).

Change Cluster

To change the cluster of the deployed agent, select "Change Cluster" from the context menu of the deployments.

In a pop-up window, select or type a cluster name you wish to deploy your agent to and click “Save”.

A cluster consists of one or more servers. Therefore, when a cluster is modified by deploying an agent to another cluster, the deployment extends to all servers incorporated in the new cluster. Consequently, this action results in the removal of the agent deployment from all servers previously associated with the prior cluster.

Remove From Cluster

To remove a deployed agent from a cluster, choose the 'Remove From Cluster' option from the context menu of the deployments. Considering that a cluster may consist of one or more servers, deploying an agent to a cluster results in its deployment across all servers within that cluster. Therefore, utilizing the 'Remove From Cluster' option effectively removes the deployed agent from all servers associated with the cluster.

Managing Cluster Deployments in Sequentum Enterprise (Desktop)

This section covers details on the management of cluster deployments in the Sequentum Enterprise desktop application.

Deploying an Agent to a Cluster

Open Agent Repository and select an agent that you wish to deploy to a cluster. Right click on the agent then go to Cluster Deployment → Deploy Version x.x.x to Cluster.

Select a cluster from the drop-down list and click the Deploy button to deploy the agent to the selected cluster.

Deploy agent's latest version to cluster

To deploy the latest version of an agent to a cluster, use the Cluster Deployment → Deploy Version x.x.x to the Cluster context menu. Refer to the section above on deploying latest version to cluster for more details.

Run agent on cluster

To run an agent on a cluster, use the Run → Run Agent on <cluster name> - x.x.x context menu. Refer to the section above on running an agent on a cluster for more details.

Remove From Cluster

To remove an agent deployment from a cluster, go to Cluster Deployment → Remove Agent from Cluster context menu. Refer to the section above on removing agent deployment from a cluster for more details.