Re: vacuumdb not letting me connect to db

[Ravi Krishna]

>There is no error message, when I try to connect the database while 
>running vacuumdb with 300 jobs, it gets stuck.

But you mentioned max connection which now seems to be a red herring.
Based on your description, the impression I got is that you are getting
"sorry, too many clients already" error.

As others have pointed out, the db is probably saturated with I/O error.