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 Ankush Tewari (AnkushTewari)
Bank of America
Ankush Tewari
Bank of America
IN
AnkushTewari Member since 2015 6 posts
Bank of America
Posted: December 1, 2019
Last activity: December 10, 2019
Posted: 1 Dec 2019 3:13 EST
Last activity: 10 Dec 2019 0:36 EST
Closed

Load-DataPage functioning

When we use Load-DataPage for async loading what happend behind the scene.?

Is it executed on seperate requestor?

Is it queued for any pega default agent?

Do same thing happen when we use call-async-activity?

Data Integration
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Posted: 1 year ago
Posted: 10 Dec 2019 0:36 EST
Sudha Sundeep Dornadula (SudhaSundeepD)
Viable Solutions
Principal Consultant
Viable Solutions
AU

Hi Ankush, 


when we use Load-DataPage method, system uses background thread to run asynchronously with the main thread.


  • It is not queued to any Agent (Because if it queues to Agent, then there will be a lot of dependency for your program on the agent and we also have to ensure the agent is running and will be returning the result with in microseconds.). 

  • With respect to requestor, as per this post https://community1.pega.com/community/product-support/question/load-datapage-requester-type looks like it creates a requestor of batch type. 

  • We can also configure Connect-Wait method to make the active thread wait for the background thread to complete successfully to proceed further. 

Also, it is the same behaviour when you invoke Call-Async-Activity. When you invoke any activity using this method, you can only use 2 methods i.e., Load-DataPage and Connect-Wait, which makes it an option where you can create an reusable activity to group and load a set of data pages.  


Hope, this helps.