Is there any reason why this has been done?
can anyone suggest me which .C files (source code) i can look in so that i
will be able to appreciate the difference.
Regards,
Dharani
On Tue, 24 Apr 2007, Murali Vilayannur wrote:
Dharani,
It depends on whether the application is linked to the pvfs2 library
or if it makes use of the vfs/posix api/fopen.
In the case of the former, applications have to make use of ephemeral
ports on the client-machine. Thus they will end up using different
ports
In the case of the latter, it is the job of pvfs2-client-core daemon
to initiate connections with the servers and maintain the socket file
descriptors.
Thus, in this case, pvfs2-client can make do with just 1 socket to a
single server and thus use the same client-side port. The app never
talks directly to the servers. All communication is funneled through
the device to client-core.
Hope this helps,
Murali
On 4/23/07, Dharani Sankar Vijayakumar <[EMAIL PROTECTED]> wrote:
Suppose there are two applications running in a pvfs client node.
Say one client does an "fopen" thus establishing a tcp/ip connection with
the metadata server.
Similarly the other application in the same client opens a connection
with the meta data server. Does the second application use a different
port number at the client than the first application? or the same port
number is used by both applications?
Regards,
Dharani
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