default report engine is not good for big report

Description

sometime my server is hung for a while.
i assume it's out of memory issue.
by investigate i see default report engine get a lot memory when it render a big report

I test by run idempiere with 3G memory.
I run report "Accounting Fact Details Report" with data of two year.
and PDFWriter get 2.3G memory to save object.

you can see detail on report on attach file

Environment

None

Status

Assignee

Hiep Lq

Reporter

Hiep Lq

Labels

Tested By

None

Priority

Major
Configure