Thanks for the information.
I tried few more tests,slapcat doesn't always hang and it hangs every second restart of slapd.
I don't know really whether it is sharing of locks issue or something else.
Currently lock detect is set to DB_LOCK_DEFAULT even if I increase the lock detect to Maximum locks no change in the state of slapcat.
If I upgrade BDB will this solve the issue of slapcat hanging ? , Have your faced such situation of hanging in slapcat
I get this below message when I run the slapcat and it never goes forward
5452a973 The first database does not allow slapcat; using the first available on e (2)
Regards,
Pramod