Connection Acquisition Timeout

Drivers & Stacks
1

We are getting this error intermittantly, a few times a day:

Neo4jError: Connection acquisition timed out in 60000 ms. Pool status: Active conn count = 0, Idle conn count = 0.

I do not see any pattern for when it occurs.

I gather that normally this error occurs because of an incompatible neo4j driver or outdated node version. But neither problem seems to be relevant:

  1. We are using Aura with a recent clone (5.20-aura) with the most recent neo4j driver (neo4j-driver 5.21.0).
  2. This is happening in production, where in Vercel we have selected the most recent version offered of node (20x).

Is there anything else that could be relevant here?

Help would be much appreciated. The problem is very intrusive, because we cannot know which query will fail.