[Engine-devel] Usage of 'Comment' field in Cluster

Hi All, I see a new field in Cluster called 'Comment'. It is available in 'New/Edit Cluster' dialog as well as in the 'Clusters Tab'. The Comment column in the clusters table shows a 'note' icon when some comment is set for a cluster. I just want to understand the right usage of this field. Can someone please clarify this? Thanks, Kanagaraj