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xinitrc86 / zthread

Simple Thread implementation for ABAP. Based on JAVA Thread, its Runnable interface with some additional callback capabilities.
MIT License
39 stars 8 forks source link

destination 'NONE' when call function 'ZTHREAD_START' #2

Open victorizbitskiy opened 3 years ago

victorizbitskiy commented 3 years ago

There is currently no way to specify a server group (RZ12) when the FM ZTHREAD_START is called. Is this a bug or a feature?

xinitrc86 commented 3 years ago

Hi Victor, I have flavored simplicity here...I had no use for running in a group on a remote application server and didn't mind running on all groups of the current server. I see no problems of having an additional optional parameter on Thread and ThreadFactory with defaulting somewhere.

victorizbitskiy commented 3 years ago

Hi @xinitrc86!

Yes, this is exactly what I wanted to suggest 😊

xinitrc86 commented 1 year ago

Still no ability to define a group, but according to documentation destination in group is preferable over destination "none". Now destination in group is being used.

victorizbitskiy commented 1 year ago

Still no ability to define a group, but according to documentation destination in group is preferable over destination "none". Now destination in group is being used.

Hi @xinitrc86! Could you please provide a link to the documentation?

xinitrc86 commented 1 year ago

Sure, this has:

Parallel-processing is implemented with a special variant of asynchonous RFC. It is important that you use only the correct variant for your own parallel processing applications: the CALL FUNCTION STARTING NEW TASK DESTINATION IN GROUP keyword. Using other variants of asynchronous RFC circumvents the built-in safeguards in the correct keyword, and can bring your system to its knees.

I don't know what it does technically, I suspect it has less overhead or manage resources a bit better. With this addition, I am being able to slightly increase the number of threads and still have a performance gain where before the extra number of threads would actually decrease the time to complete the same process.