JS7 JobScheduler

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Introduction

  • The JS7 - Download page provides information and links to download current releases of the product. For the initial installation procedure see the JS7 - Installation articles.
  • Any updates or upgrades are performed using the .tar.gz/.zip installer archive files provided for the initial installation of newer releases. Instructions provided by the JS7 - Installation section apply to updates and upgrades.
  • JS7 follows semantic versioning, with the wording being applied as follows:
    • Update to newer JS7 releases: switch to a maintenance release within the same branch, for example within minor release 2.2
      • update from 2.2.1 to 2.2.2
      • update from 2.2.0 to 2.2.2 (the latest maintenance release includes any fixes of previous maintenance releases)
    • JS7 - Upgrade to newer JS7 minor releases: switch to a newer minor release, for example from minor release 2.1 to 2.2
      • upgrade from 2.1.0 to 2.2.0
      • upgrade from 2.1.1 to 2.2.2

Update

Applicability

  • For any update the JOC Cockpit and the Controller are required to use the same maintenance release, for example 2.2.2.
  • Existing Agents can continue to be operated with newer Controller releases within the same minor release, for example 2.2.
    • Newer minor Agent releases cannot be used with an older minor Controller release: for example, an Agent 2.2 will not work with a Controller 2.1.
    • Older minor Agents releases cannot be used with newer minor Controller releases: for example, an Agent 2.1 will not work with a Controller 2.2.

Order of Components

  • First, update the JOC Cockpit.
  • In a second step, update Controller(s) and Agents.

Update Procedure for Use of Docker® Images

The following procedure applies for any Docker® images for the JOC Cockpit, Controller and Agents:

Note that the above procedure does not apply if you build your own images, see the JS7 - Build Docker Images article for more information. Consider mapping the steps explained in the Update Procedure for Headless Installation On Premises article.

Update Procedure for Headless Installation On Premises

JOC Cockpit

  • Refer to the instructions in the JS7 - JOC Cockpit Installation On Premises article.
  • Make a backup of the JOC Cockpit's installation directory.
  • Extract the installer archive .tar.gz/.zip file. It will create a sub-directory that includes the maintenance release number, for example joc.2.2.2.
    • Users can re-use an existing joc_install.xml installer response file from a previous installation for the same minor release.
    • Consider copying additional resources to the directory of the extracted installer archive, for example, to joc.2.2.2:
      • any JDBC Drivers that you downloaded individually for installation with a previous JOC Cockpit release,
      • the Hibernate configuration file that holds the database connection and that has been used for a previous installation,
      • the JS7 license key *.pem file if JS7 is operated with a Commercial License.
  • Stop the JOC Cockpit daemon (Linux) or service (Windows).
  • Run the JOC Cockpit installer:
    • Invoke the installer script in the same way as for installation of a previous release, for example:
      • ./setup.sh|.cmd joc_install.xml
      • ./setup.sh|.cmd -u joc_install.xml
  • Start the JOC Cockpit daemon (Linux) or service (Windows).

Controller

  • Refer to the follwing articles:
  • Make a backup of the Controller instance's installation directory.
  • Extract the .tar.gz/.zip installer archive file from a neutral directory not related to the current Controller installation. This will create a sub-directory that includes the maintenance release number, for example controller.2.2.2.
  • Stop the Controller:
    • Standalone Controller
      • Stop the Controller instance.
    • Controller Cluster
      • Take a note which Controller instance is the active node when stopping the Controller instances.
      • Stop both Controller instances.
      • Stop the Cluster Watch Agent.
  • Move or remove the lib sub-directory from the existing Controller installation directory.
  • Copy the lib and bin sub-directories from the extracted installer archive to the Controller instance's installation directory. This will replace the previous lib sub-directory and will overwrite the existing bin sub-directory from the new release. The Controller's instance start script that can contain individual settings is not included with the installer archive and therefore will not be overwritten, see JS7 - Controller - Command Line Operation for more inforamtion.
    • For a Controller Cluster consider performing this step for both Controller instances.
  • For a Controller Cluster update the Cluster Watch Agent as explained below and start the Cluster Watch Agent.
  • Start the Controller.

Agent

  • Refer to the following articles:
  • Make a backup of the Agent's installation directory.
  • Extract the .tar.gz/.zip installer archive file from a neutral directory not related to the current Agent installation. This will create a sub-directory that includes the maintenance release number, for example agent.2.2.2.
  • Stop the Agent.
  • Move or remove the lib sub-directory from the existing Agent installation directory.
  • Copy the lib and bin sub-directories from the extracted installer archive to the Agent's installation directory. This will replace the previous lib sub-directory and will overwrite the existing bin sub-directory from the new release. The Agent's instance start script that can contain individual settings is not included with the installer archive and therefore will not be overwritten, see JS7 - Controller - Command Line Operation for more inforamtion.
  • Start the Agent.

Troubleshooting

Controller Cluster

Should some of the steps to update/upgrade a Controller explained above have been missed, for example, if the Secondary Controller is still active while the Primary Controller is updated or upgraded, then the Cluster can become unavailable. In this situation apply the following procedure:

  • Determine the Controller instance that is active.
  • Stop both Controller instances.
  • From the Controller instance that was previously the active node copy the contents of the  state directory to the directory of the same name for the Controller instance that was previously the standby node. This operation can be considered a manual step for synchronization of the Controller Cluster.
  • Start both Controller instances.

Agent

Should some of the steps to update/upgrade an Agent explained above have been missed, then Reset the Agent having updated/upgraded the Agent's installation directory.

The user account's menu in the right upper corner of all JOC Cockpit pages offers the Manage Controller/Agents operation:


The relevant Controller/Agent management page provides a reset operation for Agents:


Explanation:

  • The Reset operation comes in two flavors:
    • Reset: the Agent is requested to perform a restart. This operation is applicable if no orders have been started or are running with the Agent.
    • Reset Forced: the Agent is forced to kill any running tasks, to perform a restart and to drop its journal. The Controller will then re-deploy scheduling objects such as workflows to the Agent.
  • The Reset operation can require 10 to 60 seconds depending on the time required to stop and to start the Agent.



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