Distributed Computing Cluster Machines

Each machine in a cluster is listed under the Machines node for that cluster. Clicking the Machines node will display a list of each machine associated with the cluster.

Adding Machines to a Distributed Computing Cluster Cluster

After registering a cluster, it will appear in the list on the left in the Distributed Computing Clusters section of the Web Administration Console.

To add machines to a Distributed Computing Cluster cluster

1. In the pane on the left, expand the Distributed Computing Cluster cluster that you want to add machines to and click Machines.
2. All of the machines in the cluster will be shown in a list in the middle of the page. Click the Add button on the toolbar. The Add Machine window will open.
3. In the Host Name field, enter the name of the machine where the Laserfiche Distributed Computing Cluster Service is installed.
4. In the Metadata Communication Port field, specify the port that Distributed Computing Cluster will use for metadata communication. By default, the service will use port 8108.
5. If the Worker should be able to perform tasks, select Allow this machine to perform tasks.
6. Click OK.

Removing Machines from a Distributed Computing Cluster Cluster

To remove a machine from a cluster

1. In the pane on the left, expand the cluster that you want to remove a machine from and click Machines.
2. All of the machines in the cluster will be shown in a list in the middle of the page. Click the Delete button on the toolbar. The Delete Machines window will open.
3. To remove the machine, click OK. Once removed, the machine will no longer be part of the cluster.

Enabling and Disabling Tasks on Multiple Machines

By default, the machine where the Distributed Computing Cluster Scheduler is installed is not configured to perform tasks.

Individual Machine Information and Settings

Clicking a machine from the list of machines will open its settings. There are four tabs where you can find information and configure settings for a machine.

• The Performance tab shows when the Laserfiche Distributed Computing Cluster Service started on this machine, how many tasks are currently assigned to this machine, the number of successfully completed tasks, the number of tasks that failed with errors, and the average task duration.
• The Information tab shows information about the Laserfiche Distributed Computing Cluster Service installed on that machine, including the Scheduler's location, the version of the service, whether the service is installed as a Scheduler, and the Distributed Computing Cluster modules installed on the machine. Distributed Computing Cluster modules, like OCR, are the types of work that the machine can perform.
• The Settings tab is where you can specify task and connection settings for the machine. By default, machines where the Laserfiche Distributed Computing Cluster Service is installed as a Scheduler will have the Allow machine to perform tasks radio button cleared.
  • When the Allow machine to perform tasks checkbox is selected, additional configuration options are available. Select Limit concurrent tasks based on the number of processor cores to limit concurrent tasks based on the machine's processor or select Set a custom limit to specify the number of concurrent tasks the machine will perform.

    Note: If the machine where the Laserfiche Distributed Computing Cluster Service is installed hosts other applications, consider setting a limit to the number of concurrent tasks to ensure that these other applications do not become resource starved. If the machine is dedicated to running Distributed Computing Cluster, limit the number of concurrent tasks based on the number of processor cores.

  • Under Connection Settings, you can specify the ports the machine will use for Distributed Computing Cluster communication, and you can specify the Authentication Mode and Encryption Type used by the machine. For more information about authentication and encryption, see Distributed Computing Cluster Machine Security.
• The Users tab will appear when Authentication Mode is set to Windows Users. In it, you'll see a list of users and their authentication roles for this machine. When authentication is enabled, you'll add the user that each Laserfiche Distributed Computing Cluster Service in the cluster runs as, as well as the users that the Laserfiche applications that will interact with the cluster are running as.Learn more about these users and their security roles.

Next Steps

Learn more about setting up machine security.