[BUG] Timer Trigger not respecting SingletoneStrategy about elsa-core HOT 4 OPEN

To address the issue you're experiencing with the SingletonStrategy not being respected when using the Timer activity in Elsa, it's important to ensure that the SingletonStrategy is properly configured and that there are no conflicting configurations that might cause the workflow to behave differently than expected.

Based on the information provided, it seems like you have already configured the SingletonStrategy for your workflow. However, the behavior you're observing suggests that new workflow instances are being created every 5 seconds, which is not the expected behavior for a singleton workflow.

Here are a few troubleshooting steps you can take:

1. Check for Conflicting Configurations: Ensure that there are no other configurations that might be overriding the SingletonStrategy. This includes checking for any other workflow definitions that might be using the same Timer activity with different activation strategies.

2. Review Elsa Version: Make sure you are using a version of Elsa that supports the SingletonStrategy as expected. If you are using an older version, consider upgrading to the latest stable release.

3. Review Quartz Configuration: Since you are using Quartz with Elsa, ensure that the Quartz configuration is correct and that it's not causing any unexpected behavior with the scheduling of the Timer activity.

4. Check for Known Issues: Review the Elsa GitHub issues and discussions to see if there are any known issues related to the SingletonStrategy and Timer activities. It's possible that you might be encountering a bug that has already been reported.

5. Create a Minimal Reproducible Example: If possible, create a minimal reproducible example that isolates the issue. This can help in identifying whether the problem is with your specific configuration or with Elsa itself.

6. Seek Support from the Community: If you're unable to resolve the issue on your own, consider reaching out to the Elsa community for support. You can ask questions on the Elsa GitHub repository, Stack Overflow, or the official Elsa Slack channel.

If you have any log output or error messages, please include them as they can provide additional context that might help diagnose the issue.

If you've already tried some of these steps, please let me know which ones and what the outcomes were, so we can further narrow down the problem.

This comment was generated by Glime.

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While poking around it seems like IWorkflowActivationStrategy.GetAllowActivationAsync is never reached.

Have I incorrectly configured the workflow?

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Same problem for me:

GetAllowActivationAsync() gets never called.

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IWorkflowActivationStrategy.GetAllowActivationAsync is called only from WorkflowHost.CanStartWorkflowAsync which is not called from anywhere across the codebase. All activities which trigger new workflow, like Event, Timer, etc. just create a new workflow and do not respect the activation strategy. It seems the activation strategy doesn't affect anything at all.

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