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- [#concurrency]
- = Concurrency
- By default, OliveTin will allow you to run several instances of an action at the same time. For example, an action might take 20 seconds, and if you click the button 3 times, for a time there will be 3 actions running at the same time.
- Sometimes you don't want to allow this - an example case where it would not make sense is in the case of a backup script. To stop this, we can set `maxConcurrent` to `1`.
- [source,yaml]
- ----
- actions:
- - title: Run Backup Script
- icon: backup
- shell: /opt/backupScript.sh
- maxConcurrent: 1
- ----
- If you try and run a 2nd instance of this action while the first is currently running, you'll get a "blocked" message that looks like this;
- image::../blocked.png[]
- Additionally, OliveTin will log a message that looks like this;
- [source,log]
- .OliveTin log showing an action being blocked rom running.
- ----
- INFO Action requested actionTitle="Run backup script"
- WARN Blocked from executing. This would mean this action is running 2 times concurrently, but this action has maxExecutions set to 1. actionTitle="Run backup script"
- ----
- Naturally, you can set `maxConcurrent` to `3` or some other number, to limit the amount of times the action executes at once.
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