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[TIGGE #YZT-357848]: queue size and pqmon
- Subject: [TIGGE #YZT-357848]: queue size and pqmon
- Date: Wed, 01 Nov 2006 09:20:13 -0700
Manuel,
> I'm looking into what should be the size of LDM product queue for TIGGE.
> I am running pqmon and get the following:
>
> ldm@tigge-ldm:~/etc> pqmon
> Nov 01 11:56:07 pqmon NOTE: Starting Up (22594)
> Nov 01 11:56:07 pqmon NOTE: nprods nfree nempty nbytes maxprods
> maxfree minempty maxext age
> Nov 01 11:56:07 pqmon NOTE: 10347 290 965925 3965980584 82186
> 5094 894302 520176 2584255
> Nov 01 11:56:07 pqmon NOTE: Exiting
>
>
> I do not understand the age = 2584255, => 29.9 days. We are supposed to
> send 10 GBytes/hour, which will evict produts from the queue very fast
> (current queue size is 4GBytes).
Data-products will not be removed from the product-queue if they are
locked. Products are locked when they are being inserted into the
queue and also when they are being read from the queue. It is possible
that a process (e.g., upstream LDM, pqact(1)) has a read-lock on the
product in question and the processing of the product is taking a very
long time.
You should be able to use the pqact(1) utility to discover the
metadata of the product in question. For example:
pqact -vl- -o 2584255 >/dev/null
Regards,
Steve Emmerson
Ticket Details
===================
Ticket ID: YZT-357848
Department: Support IDD TIGGE
Priority: Normal
Status: Closed