[OPEN-ILS-GENERAL] Circ and Placing Holds

[Mike Rylander]

On Sat, Mar 15, 2008 at 5:37 PM, Grant Johnson <fgjohnson at upei.ca> wrote:
> Hey - So I run the proximity command and this is the output.
>  Doesn't seem to do much for me.
>  What am I missing?
>
>  Thanks
>
>  request open-ils.storage open-ils.storage.actor.org_unit.refresh_proximity
>
>  osls:/openils/bin# ./srfsh
>  srfsh# request open-ils.storage open-ils.storage.actor.org_unit.refresh_proximity
>
>  Received Data: 1
>
>  ------------------------------------
>  Request Completed Successfully
>  Request Time in seconds: 0.866824
>  ------------------------------------
>  srfsh#
>
>  --
>

This is the correct return value.  It just does it's thing and returns
'1'.  With a small org tree it will be very quick.

--miker

>
>  F. Grant Johnson
>  566-0630 / fgjohnson at upei.ca
>  Skype ID = jetsongeorge
>
>  Systems Coordinator
>   Robertson Library
>   University of Prince Edward Island
>
>  ***************
>  Attitude is IT!
>
>
>  >>> On 2/28/2008 at 9:44 AM, in message
>  <b918cf3d0802280544g42fd06fq8a0b0360efb376e6 at mail.gmail.com>, "Mike Rylander"
>
>
> <mrylander at gmail.com> wrote:
>  > On Wed, Feb 27, 2008 at 10:00 PM, Bill Erickson <erickson at esilibrary.com>
>  > wrote:
>  >>
>  >> Dan Scott wrote:
>  >>  > On 27/02/2008, Bill Erickson <erickson at esilibrary.com> wrote:
>  >>  >
>  >>  >> Grant Johnson wrote:
>  >>  >>  > Hey all,
>  >>  >>  >
>  >>  >>  > I'm still in a test mode and have discovered that placing Holds just
>  >>  >>  > freezes as a patron on the OPAC.
>  >>  >>  > Checking out a book throws a network error in the Staff Client.
>  >>  >>  >
>  >>  >>  > Are these known issues?
>  >>  >>  >
>  >>  >>  > Do I need to get the Circ rules setup before these functions will work?
>  >>  >>
>  >>  >> Hi Grant,
>  >>  >>
>  >>  >>  These functions should both work out of the box, provided you have
>  >>  >>  calculated the Org Unit proximities, as described in
>  >>  >>
>  >>  >>  http://open-ils.org/dokuwiki/doku.php?id=server_installation
>  >>  >>  ("Configuring the System")
>  >>  >>
>  >>  >
>  >>  > Hmm - I see the FIXME beside that OpenSRF call in the wiki. Would it
>  >>  > make sense to add that to autogen.sh (as we need to run autogen.sh
>  >>  > everytime the set of org units changes)?
>  >>  >
>  >>  >
>  >>
>  >>
>  >>  Indeed, I asked the same question.  The problem, as I understand it, is
>  >>  the proximity calculation is very CPU intensive for large sets of org
>  >>  units.  Perhaps we make autogen.sh build the proximities by default, but
>  >>  provide a flag to autogen.sh to avoid building the proximities when
>  >>  unnecessary.
>  >>
>  >
>  > It's not the CPU intensiveness that would concern me, but time in a
>  > critical path script.  The method is a blocking call (a DELETE and
>  > then a single INSERT ... SELECT) which calculates the vector proximity
>  > of each possible pairs of nodes in the org tree.  For a large org tree
>  > this can take a good, long while -- it uses the existing (tested,
>  > robust) real-time tree walker SPs, and is intended to be used in an
>  > after-hours, low-load maintenance situation in a production
>  > environment (which is where my priorities will always go first) -- so
>  > I'd be against having the default calculate proximities.
>  >
>  > So, having explained the situation a bit, I could get behind a
>  > (non-default) switch to autogen.sh which would request proximity
>  > recalculation.
>
>



-- 
Mike Rylander
 | VP, Research and Design
 | Equinox Software, Inc. / The Evergreen Experts
 | phone:  1-877-OPEN-ILS (673-6457)
 | email:  miker at esilibrary.com
 | web:  http://www.esilibrary.com