Slow post request when updating identifiers (DOI)

Hi PKP community,

We have a journal running on OJS (last updated October 8, 2019) that is experiencing slowness when updating submissions metadata, specifically DOIs. These DOIs are being imported from outside of OJS, and updated in the submission metadata. These are articles that have already been published. I should also note this is a larger OJS instance (around 50 active journals).

When updating identifiers, I’ve noticed it takes about exactly 4 minutes per request. When looking at the browser console, I noted that the update-identifiers request was the issue, with a slow TTFB.

Any ideas on where to start looking/debugging this one? I didn’t see anything in the error logs that looked relevant here.

Screen Shot 2020-06-10 at 5.01.40 PM

Hi @kaitlin,

This has already been fixed in later releases; see DOI assignment performs poorly · Issue #5804 · pkp/pkp-lib · GitHub for details.

Alec Smecher
Public Knowledge Project Team

Amazing! Thanks for the quick reply @asmecher.