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[LDM #QDO-825062]: Default nprod in a queue

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  • Subject: [LDM #QDO-825062]: Default nprod in a queue
  • Date: Wed, 20 Nov 2019 15:16:03 -0700
Hi Paul,

Thanks for sending this in.

> This page:
> https://www.unidata.ucar.edu/software/ldm/ldm-current/troubleshooting/pqmon.html
> 
> states it uses 4096 bytes to determine the number of product slots:
> 
> "By default, an average product size of 4096 bytes is assumed to compute
> the default number of product slots to allocate for a queue of a specified
> size."
> <https://www.unidata.ucar.edu/software/ldm/ldm-current/troubleshooting/pqmon.html>
> This did not seem correct on my systems, but after some digging in the
> release notes I found that this was changed back in 2014:
> 
> Changed the assumed mean product size (which is used to compute the
> default number of slots in the product-queue) from 4096 to 51000
> bytes to better match current reality.

You're absolutely right. I missed modifying this webpage. My bad.

> I thought I'd pass it along so you could update the pqmon page.  Also, I'd
> like to suggest a feature where you can set "/queue/slots" to "automatic"
> and set a new option "/queue/avg_prod_size" instead.

Good ideas.

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: QDO-825062
Department: Support LDM
Priority: Normal
Status: Closed
===================
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