We recently updated to TeamCity 9.1. We've had a scheduled nightly backup in place using "maintainDB backup" for some time which has never had a problem. Now since the upgrade we're seeing the following error messages being output from the backup process:
Exporting TeamCity data directory: Exporting build logs
File has disappeared in stage BuildLogs. File: "C:/Users/Administrator/.BuildServer/system/artifacts/ProjectX/01 Build/104423/.teamcity/logs/buildLog.msg5"
File has disappeared in stage BuildLogs. File: "C:/Users/Administrator/.BuildServer/system/artifacts/ProjectX/01 Build/104423/.teamcity/logs/buildLog.msg5.i1"
There are 2,058 such error messages in the log.
Is this a bug in TeamCity 9.1?