[ssml] BLAST fastacmd failed to fetch sequence from database stored on PVFS2 filesystem

[Kevin Karplus]

For speed reasons, we copy the databases to the individual nodes of
our cluster when we do the weekly download.  Even a small cluster can
bring a file server to its knees if all the nodes are running blast.
have you check the logs on the file server to make sure that it is not
getting overwhelmed---many file servers start behaving very badly
indeed when they are overloaded. (not just slow, but dropping requests.)