I need to setup a temporal cron job (cannot use temporal schedule) using the Java SDK which generates daily reports so the workflow needs a context of date which can be passed to it. When a workflow execution fails, is there a way to restart it or do I start a new workflow execution? And do I remove the setCronSchedule from workflow options when restarting the workflow?
When a workflow execution fails, is there a way to restart it or do I start a new workflow execution?
To re-run a failed workflow execution, start a new workflow with the specific context date passed to it.
And do I remove the setCronSchedule from workflow options when restarting the workflow?
The workflow re-run doesn’t need a cron schedule set since it’s a once-off execution. Your original daily report cron job will continue to execute workflows on the schedule set in setCronSchedule. A Temporal Cron Job does not stop spawning Runs until it has been Terminated or until the Workflow Execution Timeout (set by you when defining the cron job) has been reached.
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If a workflow execution spawned by temporal cron job fails, how do I restart it from the point of failure?
You need to make sure in your workflow code that your new workflow can “resume” from a set state.
For example, your workflow does A B C D E and fails at C.
Write workflow code that allows you to create a new workflow with a payload that says “here is the information needed to resume from step C”.