Question
Accenture
IN
Last activity: 29 Dec 2015 0:12 EST
Is there a upper limit on the number of item a value list/ value group / pagelist / page group can store ?
Is there a upper limit on the number of item a value list/ value group / pagelist / page group can store ?
P.S
I m using Pega 7.1.7, If there is a limit then does that depends upon the PRPC version?
There is no limit for any of these property modes. However, PEGA0035 alert (Category: Clipboard List Size) appears if a Page List property has more than 10,000 entries. You can disable this alert or raise or lower the threshold.
You can find more details related to PEGA0035 alert @ https://community.pega.com/sites/default/files/help_v717/procomhelpmain.htm
As an alternative to an entry in prconfig.xml, we can also define the configuration setting (threshold) usingDynamic System Setting instance.
Infosys
AU
Elements of page list are accessed by using index which is an "int". I think page lists are implemented internally using ArrayList data structure in Pega, which is backed by object Array in Java.
So max limit should be INT_MAX value (2^31 - 1)!!!
Murali...
Pegasystems Inc.
IN
You are right Murali, we don't use Stack/Queue for implementation and there is no limit on number of items.
Is there any particular scenario which you are trying to evaluate here ? For all practical purposes list/groups should have unlimited storage(only limited by JVM memory) but will impact memory and performance issues.
I would also suggested to keep the recommended settings for PEGA0035 threshold for the same reasons.
Accenture
IN
Thanks Murali and Pankaj for the reply âº
Was analyzing the existing code of the system, where it is expected that the data will group pretty fast soon.
So was wondering will the pagelist break because of increase in the number of records, but seems from the above comment that it wont break
What kind of error will it show in log, if becase of jvm memory , the pagelist breaks up and we were unable to add records to the list ?
Updated: 29 Dec 2015 0:12 EST
Pegasystems Inc.
IN
Please refer to the article below to see the warning and error messages that you will get in logs for exceeding threshold values.
https://community.pega.com/sites/default/files/help_v717/procomhelpmain.htm
However if you try to remove/increase these thresholds to much higher value and substantial amount of memory is consumed, server will go down. And that's why keeping thresholds to a good limit helps controlling the performance and memory restrictions of server.