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  2. RPG400-L
  3. October 2020

Re: ss_save in hssf appears to be hanging

On Mon, Oct 5, 2020 at 3:47 PM Smith, Mike <Mike_Smith@xxxxxxxxxxxxxxxx> wrote:

I have started converting programs that use poi/hssf to write to .xlsx files instead of .xls.
I have one program that writes over 800,000 records.

Even though the .xlsx format can, strictly speaking, handle that many
rows, it's still not well suited for that many.

What is the use case? Who/what is consuming the resulting workbook? Is
there really some human being waiting to open up an Excel file with
the better part of a million rows?

However when it gets to the ss_save function it appears to hang. Program has sat for hours at this statement.
I'm not getting any errors, nothing in job log.

Maybe it just takes that long to save, but, if so is there anything I can do to speed it up?

I have never attempted anything close to that size. I take it you have
already successfully created smaller .xlsx files?

John Y.

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