Previously I was running Filebeat 7.5 on Ubuntu 18.04. I have installed Filebeat 7.10.2 on Ubuntu 20, and now my syslog is flooded with this message while filebeat is running:
CIFS VFS: Close unmatched open
The configurations are the same, and the way I mount the share in /etc/fstab is Identical. I have 15-20 filebeat yml files in /etc/filebeat/inputs.d using a blob pattern.. like /nfsshare/**/_sharetype/LOGFILE.log
Everything appears to be working, not sure if this is an issue I need to worry about or not.