How long should bitbucket sync take between mirrors?

[Jeff Tillett]

Our organization has recently set up a Bitbucket Data Center instance with 2 nodes, and 2 mirrors.

Users are reporting ~11 minute delays when pushing a branch to the master server before the equivalent refs are being created in the mirror.

The logs are not showing any errors, I cannot find anywhere that I can adjust timings, and the documentation only states that changes are sync'ed "Periodically". Does anyone know what the expected timing is?

[Felix · Accepted solution]

11 minutes sounds like a long time to fetch the new refs. Mirrors receive a webhook from the primary when there are changes they need to fetch, so the updates should be much faster. 

There's a synchronization job that runs every 15 minutes by default just in case a webhook was dropped or lost.
It sounds like your mirrors may not be receiving webhooks for some reason.

I recommend you open a support case and mention this question, so we can help you debug this issue further.

[dushyanth hk]

You need to change the default value in properties file "plugin.mirroring.synchronization.interval" to lesser time.

https://confluence.atlassian.com/bitbucketserver/bitbucket-server-config-properties-776640155.html