Re: Using HSSF & getting error

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

Hi Steve,

You must have a faster computer than I do :-)  My biggest spreadsheet is 
14000 rows and 18 columns, and it takes about 30 minutes.  And that's 
using SXSSF (lower memory footprint of XSSF)

But, anyway... I would go with the newest JVM that you can.  Unless 
you're having problems with jdk60, that's the one I'd use.

-SK



On 6/28/2012 1:56 PM, sjones@xxxxxxxxxxxxxxx wrote:
> Scott:
>
> It runs for about 20 minutes - would love for it to run quicker but don't
> have any ideas on how to achieve that.
>
> Your tip on looking at the QIBM_RPG_JAVA_PROPERTIES variable led me to our
> CL that is called before we build the spread sheets.  I found that it was
> changed to be pointing to the 64bit of jdk60 - It used to be jdk50/32bit
>
> So I changed it to the following & now my program runs.
>
> ADDENVVAR ENVVAR(JAVA_HOME) +
>         VALUE('/QOpenSys/QIBM/ProdData/JavaVM/jdk60/32bit') +
>         REPLACE(*YES)
>
> Is there any reason to go back to jdk50 or can I leave it at jdk60?
>
> Steve Jones
>
>
>
> From:   Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>
> To:     RPG programming on the IBM i / System i <rpg400-l@xxxxxxxxxxxx>,
> Date:   06/28/2012 02:05 PM
> Subject:        Re: Using HSSF & getting error
> Sent by:        rpg400-l-bounces@xxxxxxxxxxxx
>
>
>
> I haven't experienced this problem, myself, as I don't create
> spreadsheets that large with HSSF.  (It must take forever to run!)
>
> But, I do know that it's possible to tweak the amount of memory that
> Java allows programs to use in the QIBM_RPG_JAVA_PROPERTIES variable.
> Maybe worth try?
>
>
> On 6/28/2012 12:16 PM, sjones@xxxxxxxxxxxxxxx wrote:
> > Have been using Scott Klements HSSF programs to create some Excel spread
> > sheets & has been working great.  Today I add 2 new columns to be put on
> > the spread sheet & when I run the job it blows up with
> > "java.lang.OutOfMemoryError"  The spread sheet has 25 columns & contains
> > 37249 rows.  What do I need to do so that I can continue to run this?
> >
> > Thanks!!
> > Steve Jones
> > H-P Products, Inc