[OPEN-ILS-GENERAL] 3.0.2-3.0.3 Upgrade DB script takes over a week to finish

Tue Apr 24 10:03:08 EDT 2018

Hello,  Thank you all for the great info in this thread.  I've been trying out some test upgrades from 2.10 -> 3.1 and  have some questions that I thought I would just add here.

I just want to make sure I understand which of the longer running updates do the same things as other updates for efficiency.

My notes on the upgrade scripts are at https://docs.google.com/document/d/1Rh-ei7ffm3BVeMaJSDFte6LGgP4xt5VU16YZSOJ4uzg/edit?usp=sharing

List of longer running updates

1.       2.10.7-2.11.0 – 901 field update via update set id=id method

2.       2.11.3-2.12.0 – Facet and Browse reingest  via metabib.reingest_metabib_field_entries

3.       2.12.0-2.12.1 – Browse reingest via metabib.reingest_metabib_field_entries

4.       2.12.6-3.0.0

a.       Display field reingest via metabib.reingest_metabib_field_entries

b.       Authority reingest via update set id=id method in a transaction

5.       3.0.6-3.1.0 – full reingest via update set id=id method in a function

So from what I think I understand, these updates can all be completed by performing the

1.       Authority reingest from 2.12.6-3.0.0.

2.       Full reingest from 3.0.6-3.1.0.  (should deal with all the indexes along with bre trigger updates for the 901 update).

I’m looking into breaking these updates into smaller chunks and running them in parallel to speed them up and allow the system to function somewhat normally.  I usually use the pingest.pl script, but I don’t think that script would take care of bre trigger based updates, since I think it calls metabib.reingest_metabib_field_entries to perform updates just on the indices.

But I think I may run into trouble running multiple instances of each of these updates because of the transactions.  I’m thinking that as is, the updating of the config.internal_flag and “alter table” will block other transactions.

So maybe I’m better off using pingest.pl for the search re-indexing, which can be run in parallel, and then a simpler query for the “update set id=id on bre” bre trigger updates, which should skip the indexing updates.

The authority update I should maybe just run serially, cut up into smaller chunks of records.  Is there a pingest.pl script for authority reindexing?

Also, could someone tell me the difference between using a “DO $FUNC$” for the 3.0.6-3.1.0 reingest verses how the 2.12.6-3.0.0 authority reingest uses commands in a transaction block?  Is one method superior to another?  Is the DO $FUNC$ method implicitly in a transaction?

Thanks

Josh Stompro - LARL IT Director

-----Original Message-----
From: Open-ils-general [mailto:open-ils-general-bounces at list.georgialibraries.org] On Behalf Of Jesse McCarty
Sent: Wednesday, April 04, 2018 2:10 PM
To: 'Evergreen Discussion Group' <open-ils-general at list.georgialibraries.org>
Subject: Re: [OPEN-ILS-GENERAL] 3.0.2-3.0.3 Upgrade DB script takes over a week to finish

Jason,

If the authority reingest is the one that runs in the 2.12.0-2.12.1 script, it looks like between an hour/hour and a half on our test system this morning. I don't know how many bib records we have, but our Database sits about 24GB if that helps for comparison.

Jesse McCarty

City of Burlington

Information Systems Technician

-----Original Message-----

From: Open-ils-general [mailto:open-ils-general-bounces at list.georgialibraries.org] On Behalf Of Jason Stephenson

Sent: Wednesday, April 04, 2018 11:58 AM

To: open-ils-general at list.georgialibraries.org<mailto:open-ils-general at list.georgialibraries.org>

Subject: Re: [OPEN-ILS-GENERAL] 3.0.2-3.0.3 Upgrade DB script takes over a week to finish

On 04/04/2018 02:46 PM, Jesse McCarty wrote:

> Thank you Kathy,

>

> Those changes seemed to work great. What seemed to never end completed

> in about a minute, and I was able to start up Evergreen and

> search/renew and otherwise interact with the test system as expected

> (in my limited IT testing role not being a library staff member that

> fully utilizes the system). Is this to be expected to complete that

> fast or should I be wondering if something didn't go as needed?

Jesse, I think you're OK. That update went from never finishing on my test system to running in just 12 minutes. (We have several million bib

records.) By never finishing, I mean I let it run for a few days before stopping it.

If there were any problems, you should see error messages in the console where the script was running. I like to pipe the output to "tee" so it also goes to a file:

psql -f upgrade_script.sql |& tee ~/upgrade_script.log

The "|&" is a shortcut to send both standard output and errors to the file.

Do you know how long the authority ingest part of the updrade scripts runs for you? That runs for over 30 hours on my test system, and it is already about as optimized as it can be.

Cheers,

Jason
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