mahara-contributors team mailing list archive

[Aaron Wells <778254@xxxxxxxxxxxxxxxxxx>]

So it turns out the implementation in in patch 2729 still errored out
mahara.org. By placing a lot of log_info() statements throughout the
activity_process_queue() cron job, I was able to trace the crash to the
part where it does activity_get_users().

The reason this is a problem, is because patch 2729 doesn't actually
chunk the data pulled from the database; instead, it pulls the full
amount of data and then only processes a subset of it.

So, I've submitted a patch which actual alters
ActivityInteractionForumNewPost so that only pulls CHUNK_SIZE users from
the DB each time. With this patch, the mahara.org News forum actually
sends out notifications!

https://reviews.mahara.org/2790

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https://bugs.launchpad.net/bugs/778254

Title:
  Split multiple user activity notifications into chunks

Status in Mahara ePortfolio:
  In Progress

Bug description:
  See bug #716812.

  When there are lots of users that need to be notified about a single
  activity, they need to be chunked and processed over several cron runs
  to avoid running out of memory.

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