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[gfarm-discuss:06394] Re: gfarm questions

(B (B (B (BHi,
(B
(Bthank you all for your answers.
(B
(B
(B
(BHmm, what is the output of "gfhost -l" on the client machine?
(B
(B
(B
(B# /usr/local/gfarm/bin/gfhost -l
(Bx.xx/x.xx/x.xx - x86_64-gentoo1.12.1-linux 4 node202.dataflow
(Bx.xx/x.xx/x.xx - x86_64-gentoo1.12.1-linux 4 node206.dataflow
(B
(B
(B
(BWhat is the authentication method you are using?
(BIf you are using sharesecret, one of the following ways is necessary:
(B  - share your home directory among your servers and clients.
(Bor
(B  - you have to use "gfkey -c" to create a shared key in
(B    ~/.gfarm_shared_key, and copy the key file to your servers and
(B    clients.
(B
(B
(B
(BI'm using sharedsecret. I've created a key using gfkey -c -p 100000000 (3 years). Then I copied the key to the
(B
(Broot's home directory of the nodes.
(B
(B
(B
(B> What I would like to understand are:
(B
(B> - What is the purpose oti the gfarm_agent?
(B
(BCaching pathname metadata.
(B
(B
(B
(BOk. So I guess it's purpose is to provide metadata data faster...
(B
(B
(B
(B
(BIf you are using GfarmFS-FUSE, you can specify the number of replicas
(Bby "-N" option of the gfarmfs command.
(B
(B
(B
(BI'll try to install the svn version of gfarmfs and test it as soon as I solve the other problems.
(B
(B
(B
(B> - I'm totally confused with permissions. If I mount a gfarm, can I give
(B> to my files permissions of the client machine? 
(B
(BYes.
(BPlease note that the privilege of the gfarmfs command is used to access
(BGfarm filesystem, if you are using FUSE.
(Bi.e. If there are multiple users in your machine, you have to invoke
(B
(B
(B
(BTo invoke what?
(B
(BSome more questions:
(B- Since I have one metadata server there is one single point of failure. I'm using ldap as backend. If I replicate the ldap to another server, can I tell my nodes to use the other server as secondary in case the primary is not accessible? What is the best way to ensure that if gfmd fails, my grid will still work?
(B- Is there a web interface for monitoring the status (disk usage, performace, nodes etc) of the grid? I read somewhere for hotpage but I cannot access its web site.
(B
(B
(Bthanx,
(B
(BStella (B (B