[Archivesspace_Users_Group] Best Way to Reindex with PUI Live?

[Joshua D. Shaw]

Hey Blake-

I usually empty the indexer states directories and the data/solr_index/index directory when I do a fresh index run, but this is the first time I've had to do a re-index while the PUI is live. Staff I can give a heads up and they typically don't work weekends anyway. But students & faculty are a different ballgame!

Do you inform users of the PUI that its down? Or do your stats indicate that the use on weekends is low enough not to warrant that step? I'm loathe to completely take down an online resource - especially now when Dartmouth is in the middle of its spring quarter.

I guess I'll try a couple of different approaches on our dev site and see which turns out to be best. If none of those work, postponing the update till early June is probably the best option for us (when classes and finals end).

Thanks!
Joshua

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From: archivesspace_users_group-bounces at lyralists.lyrasis.org <archivesspace_users_group-bounces at lyralists.lyrasis.org> on behalf of Blake Carver <blake.carver at lyrasis.org>
Sent: Monday, April 27, 2020 2:47 PM
To: Archivesspace Users Group <archivesspace_users_group at lyralists.lyrasis.org>
Subject: Re: [Archivesspace_Users_Group] Best Way to Reindex with PUI Live?

Theoretically another way to do it is to update system_mtime on everything as well.

https://gist.github.com/Blake-/538c8d7cc7ade39efc372a3e3e190873<https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgist.github.com%2FBlake-%2F538c8d7cc7ade39efc372a3e3e190873&data=02%7C01%7Cjoshua.d.shaw%40dartmouth.edu%7C36c6220876864dc281b208d7eadb760e%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C637236100609796629&sdata=kvx17mtZbxsEiMT8nQPVJkLvY9sMvWAGe1bnTNcYqEw%3D&reserved=0>

Someplace in the official solr docs they say the best way to do it is to wipe everything. I've found it best to empty /data/.

We'll usually do the full reindexes on a Friday night, most sites will have finished up by Monday.
________________________________
From: archivesspace_users_group-bounces at lyralists.lyrasis.org <archivesspace_users_group-bounces at lyralists.lyrasis.org> on behalf of Joshua D. Shaw <Joshua.D.Shaw at dartmouth.edu>
Sent: Monday, April 27, 2020 1:01 PM
To: Archivesspace Users Group <archivesspace_users_group at lyralists.lyrasis.org>
Subject: [Archivesspace_Users_Group] Best Way to Reindex with PUI Live?

Hi all-

Just wondering what people have been doing when they need to do a total reindex and they have a live PUI? Our reindex takes about 4-6 hours typically and I'm looking to avoid 4-6 hours of PUI downtime if at all possible.

I'm planning to just wipe the indexer_state files and leave the index itself in place while the re-index occurs, but I'm wondering if there are better/alternate methods? Theoretically the PUI should still be functional while the reindex takes place if only the indexer_state files are wiped.

Thanks!
Joshua

___________________
Joshua Shaw (he, him)
Technology Coordinator
Rauner Special Collections Library & Digital Library Technologies Group
Dartmouth College
603.646.0405
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