Performance issue

[2005 IR Help]

By: mmaniaq - mmaniaq

Performance issue

2005-09-09 02:12

Hello,

 

I need some help with the following situation:

 

Got an aplication that has around 2000 users. The application has to generate: report with all the users, reports for every user , reports with groups of users. Also these reports have to be generated once and reviewed any time later.

 

So I said to myself that the solution is to generate a JasperPrint for each user and serialize it to the disk in a special folder in a file "report_userid". So I will have a lot of files with serialized objects.

So, when I need a report for a user I load the serialized report which has its user_id, when I want to show the report with all the users I load all the files and create a VERY BIG (:( ) JasperPrint object (using addPages from loaded items).

 

In fact here is the performance problem: this last action (load for all or for group) is VERY, VERY slow and VERY memory consuming.

Is there another way to create reports for one/all/many users and loaded VERY QUICKLY using JasperReports?

 

Any hint, any smallest ideea/suggestion is apreciated!!

 

Thanks

 

 

 

 

By: mmaniaq - mmaniaq

RE: Performance issue

2005-09-15 04:06

ok..so nobody has any ideea on the problem presented above?

 

It's just a simple "compute once slowly use it anytime fast" report approach which I want to use.

If my approach is not correct any suggestions are ok!!

 

 

Thanks

[martins.tuga]

8 years later I have the same problem.

Check this link http://community.jaspersoft.com/questions/817495/jasperreports-very-slow-when-loading-jasperprint-file

Any idea?