I am starting a Sub Process (Async) from the main process. I would like to know

aayusha

Certified Senior Developer

over 10 years ago

I am starting a Sub Process (Async) from the main process. I would like to know that is there a limit of process that can be started at one moment?
I understand that all the process (Main and Async Sub Process) will be running on same engine. So would there any case of failure due to excessive loading? I am assuming that my Sub process will be having at least 2000 instances in one go.
Thanks...

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0 Sanjay over 10 years ago

As you rightly think, sub-process instances start on the same execution engine as the parent. In case of large number of instances, it is better to split them into smaller batches and use Appian messaging architecture to spread them across engines. Say for 2000 instances, initiate three message-listening processes and have each of them start 700 sub-processes.

Relevant Appian documentation:
forum.appian.com/.../Messaging_Best_Practices
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0 aayusha
Certified Senior Developer
over 10 years ago

So, Is there a specified number which one should not exceed while creating Async Sub-Process?
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0 Sanjay over 10 years ago

No hard and fast number I'm aware of. Depends on how much additional load each sub-process instance adds to the engine.
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0 aayusha
Certified Senior Developer
over 10 years ago

After going through the documentation, I got this useful link.
forum.appian.com/.../Post-Install_Configurations
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0 aayusha
Certified Senior Developer
over 10 years ago

And also this was useful.
forum.appian.com/.../Configuring_the_Process_Engine_Servers
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