[EP-tech] Antwort: Re: upgrading IRStats to IRStats2

martin.braendle at id.uzh.ch martin.braendle at id.uzh.ch
Tue Apr 21 07:07:52 BST 2015

Dear Matthew,

this is from our last nightly IRStats2 process_stats log, it might give you
an estimate of how long a full statistics evaluation would run:

Access: it took 117 secs to parse 5665 records ( average = 48.42
records/sec )
Access: 3071 records kept out of 5665 ( ratio = 54.21% )

I can't comment on your initial question, though. No experience here with

(Idea: I would try to compare the irstats2_* and irstats_* database tables
on a small test repo to find out whether the old irstats tables could be

Best regards,


Dr. Martin Brändle
Zentrale Informatik
Universität Zürich
Winterthurerstr. 190
CH-8057 Zürich

mail: martin.braendle at id.uzh.ch
phone: +41 44 63 56705
fax: +41 44 63 54505

Von:	Matthew Kerwin <matthew.kerwin at qut.edu.au>
An:	"eprints-tech at ecs.soton.ac.uk" <eprints-tech at ecs.soton.ac.uk>
Datum:	21/04/2015 02:02
Betreff:	[EP-tech] Re: upgrading IRStats to IRStats2
Gesendet von:	eprints-tech-bounces at ecs.soton.ac.uk

I should also note that our ‘access’ table is multiple jiggle-bytes in
size, with hundreds of millions of records, so we’re not overly keen on
running a full IRStats regen. We’re currently working on strategies to
archive old records from the access table.

Matthew Kerwin  |  QUT Library eServices  |  matthew.kerwin at qut.edu.au

From: Matthew Kerwin
Sent: Tuesday, 21 April 2015 09:50
To: eprints-tech at ecs.soton.ac.uk
Subject: upgrading IRStats to IRStats2

Hi folks, sorry if this has been covered elsewhere but I haven’t seen
mention of it. One of our repositories was recently updated to 3.3, however
we’re still running the old IRStats (v1). We’re eager to update to
IRStats2, however we’re not sure what process to go through, nor what risks
are involved.

Is there any advice on upgrading IRStats to IRStats2?

Matthew Kerwin  |  Senior Web Developer  |  Applications & Development Team
|  Library eServices  |  Queensland University of Technology  |  Level 3, R
Block, Kelvin Grove  |  matthew.kerwin at qut.edu.au  |  CRICOS No 00213J
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