Question
GovCIO
US
Last activity: 13 Sep 2017 21:31 EDT
Thread Level Parameterized Data Page not flushing out
Hi Experts,
We have seen some memory leakage in our application by using the DP of Thread scope and here is the details for your info.
A Data page which is configured at thread scope with Parameters is not getting flushed out and is showing up for multiple threads and the list of the data page is getting appended. You can take the example of out of the box D_AttachmentList which is a parameterized Thread level Data Page.
Steps to Reproduce:
2) Created multiple cases from the application and resolved them
3) Multiple threads were created on the DP and each thread points to a case's attachments
Attempted solutions:
1) Used the OOTB Data Page: D_AttachmentList of Thread scope
2) Did private checkout
3) Go to Load Management and select the checkbox -> Limit to a single data page
4) Ran the application from Developer portal
5) Created cases and checked the DP's from the clipboard and observed that only one DP is present for the recent case submitted
Hi Experts,
We have seen some memory leakage in our application by using the DP of Thread scope and here is the details for your info.
A Data page which is configured at thread scope with Parameters is not getting flushed out and is showing up for multiple threads and the list of the data page is getting appended. You can take the example of out of the box D_AttachmentList which is a parameterized Thread level Data Page.
Steps to Reproduce:
2) Created multiple cases from the application and resolved them
3) Multiple threads were created on the DP and each thread points to a case's attachments
Attempted solutions:
1) Used the OOTB Data Page: D_AttachmentList of Thread scope
2) Did private checkout
3) Go to Load Management and select the checkbox -> Limit to a single data page
4) Ran the application from Developer portal
5) Created cases and checked the DP's from the clipboard and observed that only one DP is present for the recent case submitted
For this issue, created an SR and awaiting response from engineer. Any thoughts about this?
Thanks,
Ravi Kumar Pisupati.
***Updated by moderator: Lochan to tag as SR Parallel***
Pegasystems Inc.
IN
Hi Ravi,
You can try flushing the data page manually using one of the below methods:
1. You can write a java step and use the following method :
pega.getDeclarativePageUtils().deleteAllInstancesOfDeclarativePage("yourdatapagename");
or
2. Follow below steps:
-Do a Page-Remove of Paramaterized page
-Call OOTB FlushDeclarativePage activity with page name just D_<Name> without parameters
Please let me know if this helps.
Regards,
Vikash
GovCIO
US
Hi vikash,
More or less similar steps were given by the engineer who is working on SR. But I don't want to flush the DP forcefully by an utility or an agent explicitly. Is there any Pega feature automatically can do this flush from the DP settings itself? I am thinking in this direction to resolve this. Anyways, thank you for your Solution options.
Thanks,
Ravi Kumar.
GovCIO
US
Here is the update after working with Pega engineer on that SR.
- Short term solution as update the DP configuration (checkbox option) as I mentioned and testing is in progress
- Long term solution is to give a fix and we are still analyzing.
Thanks,
Ravi Kumar.