[Archivesspace_Users_Group] Method to Pause Indexer during Job Run?

Joshua D. Shaw Joshua.D.Shaw at dartmouth.edu
Wed Feb 19 08:05:16 EST 2020

Thanks, James. I glanced at that, but somehow didn't realize those were endpoints I could hit. I'll give it a go!


From: archivesspace_users_group-bounces at lyralists.lyrasis.org <archivesspace_users_group-bounces at lyralists.lyrasis.org> on behalf of James Bullen <james at hudmol.com>
Sent: Tuesday, February 18, 2020 7:16 PM
To: Archivesspace Users Group <archivesspace_users_group at lyralists.lyrasis.org>
Subject: Re: [Archivesspace_Users_Group] Method to Pause Indexer during Job Run?

Hi Joshua,

I haven’t used it, but I see these endpoints in indexer/app/main.rb

  get "/" do
    if IndexerCommon.paused?
      "Indexers paused until #{IndexerCommon.class_variable_get(:@@paused_until)}"
      "Running every #{AppConfig[:solr_indexing_frequency_seconds].to_i} seconds. "

  # this pauses the indexer so that bulk update and migrations can happen
  # without bogging down the server
  put "/" do
    duration = params[:duration].nil? ? 900 : params[:duration].to_i
    IndexerCommon.pause duration

Seems to do what you want.


On Feb 19, 2020, at 6:29 AM, Joshua D. Shaw <Joshua.D.Shaw at dartmouth.edu<mailto:Joshua.D.Shaw at dartmouth.edu>> wrote:

Hey all-

I writing a job that may take a *long* time (hours) to complete which will be updating a *lot* of AO records. I'm wondering if there's a way to pause the Indexer during a job so that I can let the Indexer do its thing*after* the job completes. I know I can toggle the AppConfig value for the indexer and do a stop/start for the app, but ideally I'd like to do the pause/resume of the Indexer while the job runs.

I could also set this up as a migration, but the updates include a bunch of tables (I'm adding an instance to AOs which meet certain criteria) and I'd prefer to use the API to do things to be safe.

Any thoughts on pausing the Indexer during a job, or do I bite the bullet and do this as a migration?


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