We are running EventStore 126.96.36.199 in an docker container and make heavy use of the build in projections (especially by-category).
Recently i noticed, that it takes like 2-3 minutes after restarting EventStore, before we get new events streamed via a subscription, that subscribes to an $ce-Category stream. After debugging a bit i noticed that after restarting EventStore all of the build-in projections we’re recreating. And after the rebuild was done, i received the events as expected (even the missed ones).
Some of the build in projections create a checkpoint after some time (by some rule i don’t understand) while others just show “Last Checkpoint: C:0/P:-1” even like 10 minutes after the projection has been rebuild. So restarting in this state leads to the full rebuild again and again. This hurts us, because we have an unstable deployment setup where we redeploy on any commit on master. So restarting the whole docker setup 10 times a day is “normal” for us. The system tests after deployment than regularly fail, because EventStore is rebuilding projections and our projections are not projection within an expected timespan.
Is there something fishy on our side i can have a look into? When should EventStore write a Checkpoint for the build-in projections?
Thanks in adavance!