Arkindex 1.6.6

We are happy to announce that a new Arkindex release is available. You can explore Arkindex and try out the newest features on our demo instance, demo.arkindex.org.

Task execution time

The execution time of process tasks is now tracked. In the frontend, this execution time is now displayed for each task in the process status page.

Task with execution time
Figure 1. A task with its execution time

Frontend interface

In the children tree of any Arkindex element, it is now possible to load all children elements at once. The "load all" button displays a count of all the elements that would be loaded when clicking it. The regular "load more" button has been moved to the top of the tree.

Load all children button
Figure 2. "Load all" button in the element tree

Errors when renaming a worker configuration (which can happen if you try to rename an existing worker configuration to a name that is already used by another worker configuration) are now correctly handled and displayed by the frontend.

Command Line Interface

  • All objects created using the Page XML document import are now created with a worker run, not as manual results.

  • When publishing a tagged worker version using the worker version publication command, if a worker version with the same revision URL already exists, instead of failing the command now updates the existing version’s tag.

Miscellaneous updates

  • Enterprise Edition A new setting is now available on Ponos agent: using accept_tasks they can be configured to accept or not accept new tasks. This can be set from the Django administration interface.

  • The size of Model versions was previously limited to 2 Gb; they can now have a size of up to several terabytes.

Upgrade notes

To upgrade a development instance, follow this documentation.

To upgrade a production instance, you need to:

  • Deploy this release’s Docker image: registry.gitlab.teklia.com/arkindex/backend:1.6.6

  • Run the database migrations: docker exec ark-backend arkindex migrate

  • Update the system workers: docker exec ark-backend arkindex update_system_workers

The main changes impacting developers and system administrators are detailed below.

Warm shutdowns of Ponos agents

In Enterprise Edition only, a new Accept tasks field can be toggled on Ponos agents through the administration interface. New tasks are only assigned to an agent when this flag is set.

This allows system administrators to wait for currently running tasks to complete and shut a Ponos agent down without having any visible impact on process execution.

Maximum task TTL

In the backend configuration, a new ponos.maximum_task_ttl setting allows configuring a default for the maximum time-to-live of any task on a project. This can be overridden on any project through the administration interface.

This currently has no effect. In future releases, the execution time of each Ponos task will be limited by this maximum TTL to prevent abuse of system resources.