[Pvfs2-developers] PVFS_SERV_GETCONFIG request.

[Erik Nieto]

Hello everybody,

   I have some questions about the PVFS_SERV_GETCONFIG request in the
client side. When I trace the msgpairs state machine, I can
see the operations using this sm (when i post an I/O operation and a
new file should be created):

-  PVFS_SERV_GETCONFIG

-  PVFS_SERV_LOOKUP_PATH

-  PVFS_SERV_GETATTR

-  PVFS_SERV_CREATE (one for a metafile and severals for datafiles)

-  PVFS_SERV_SETATTR

-  PVFS_SERV_CRDIRENT


     Searching in the PVFS code, I found that the PVFS_SERV_GETCONFIG
request is filled in the “server-get-config.sm” state machine.


My questions are:

    1.-  What kind of information is fetched from the server in the
client-side in this request?

     2.- Is it necessary get that information of each server, both meta and

data servers?

     3.-  I understand that servers configuration is cached in the client

side when they are initialized, is it right?

     4 .-  And  last, can a particular server configuration be different to

another conf. server?



My system configuration is:

-  One metadata server

-  Five I/O servers

- One client accesing to system


 Thanks in advance,

                                    Erik
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