I have recently received the following database integrity check alert, and am not certain of how to resolve:

Database errors found.
/opt/zimbra/mysql/bin/mysqlcheck --defaults-file=/opt/zimbra/conf/my.cnf -S /opt/zimbra/db/mysql.sock -A -C -s -u root --password=XXXXXXXX
backup.shared_blob_digest
warning : 1 client is using or hasn't closed the table properly

I have looked through the forums for a similar message, but haven't found reference to any such as this. Any advice would be appreciated.

I am running the following:
Zimbra 8.0.1_GA_5438 (build 20121105164507)

Thanks for your help.