"The mirroring feature is not available." is written to the application log of non datacentre instances.

Non data centre Bitbucket Server instances will log the below at WARN level whenever someone hovers over the clone button in a repository:

The mirroring feature is not available.

When user hovers over the clone button, the frontend makes a request to the /rest/mirroring/latest/repos/$REPO_ID/mirrors REST endpoint.

Stop doing this as it is unnecessary and adds noise to applications logs.

Steps to fix:

• Stop the frontend from making the request on non-DC instances
• The message shouldn't be logged at WARN level

Workaround

One workaround is to set the log level for com.atlassian.bitbucket.internal.mirroring.upstream.DefaultSmartMirroringFeature to ERROR. Note care must be taken to only set this log level to ERROR for this class otherwise important logging could be lost.