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 Benjamin Hui (BenjaminHui)
CGI
Pega Practice Lead
CGI
US
BenjaminHui Member since 2011 18 posts
CGI
Posted: April 1, 2020
Last activity: April 2, 2020
Posted: 1 Apr 2020 14:32 EDT
Last activity: 2 Apr 2020 12:37 EDT
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What agents clean up non-used node level data page?

For data page with a scope as Node, in the Load Management tab, there is an option to Clear Page after non-use. I understand the behavior of this setting but I want to know how it is done?  What process or agent is used to delete the expired pages?

 

Thanks

Pega Platform 7.1.3 System Administration
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Posted: 1 year ago
Updated: 1 year ago
Posted: 1 Apr 2020 17:01 EDT
Updated: 1 Apr 2020 17:03 EDT
Harish Gunneri (Harish_GCS)
PEGA
Senior Software Solutions Engineer
Pegasystems Inc.
US

Hi Benjamin,

 

I am sure there is no agent involved in clearing unused node data pages.

For data pages with a scope of Requestor or Node, selecting "Clear pages after non-use" checkbox will force the system to delete the clipboard instances of the data page after an interval passes with no access. 

  • Node scope – The system checks the Reload if older than fields on the Load Management tab of the data page rule. If the fields are blank, the system uses the value of the Dynamic System Setting DeclarePages/DefaultIdleTimeSeconds, which is set by default to 86400 seconds, or one day.

 

I think the system refers to a certain daemon process like PassivationDaemon OR passivation process itself.