In the Alert most of the information Unkown

sebeid

I am using  SQL Monitor 8.0.15.15813 , Recently  I am noticing alot of blocking alerts have Unkown information and this is preventing us from troubleshooting problems  

Database Name:Unknown
Blocking Session ID:9935
Number of blocked descendants:Unknown
Total blocking duration for all descendants:00:28:14
Blocking SQL fragment:
Blocking process:Microsoft JDBC Driver for SQL Server

Russell D

The chances are you're seeing the result of sampled processes being in a sleeping state. Probably best to send your log files in at this juncture though as its hard to tell without any further information.

sebeid

@Russell D
What Log files you are asking about , Redgate logs or Sqlserver logs?