SHUTDOWN IS IN PROGRESS 

PROBLEM
-------
 In the background thread srv_master_thread() we have a 
 a one second delay loop which will continuously monitor
 server activity .If the server is inactive (with out any
 user activity) or in a shutdown state we do some background
 activity like flushing the changes.In the current code
 we are not checking if server is in shutdown state before
 sleeping for one second.

FIX
---
If server is in shutdown state ,then dont go to one second
sleep.