add a mysql NotebookRepo

hi, all: At present,zeppelin provides HDFS, mongodb, s3 and other repositories for storing notebooks. Is it necessary to add a mysql repository? I personally think that the security and the stability of the mysql repository may be relatively higher. thanks

add a mysql NotebookRepo

hi, all: At present,zeppelin provides HDFS, mongodb, s3 and other repositories for storing notebooks. Is it necessary to add a mysql repository? I personally think that the security of the mysql repository may be relatively higher.