[gfarm-discuss:06383] Re: gfarm questions

[SODA Noriyuki <soda@xxxxxxxxx>]

Hi,
(B
(B>>>>> On Thu, 18 Jan 2007 19:06:04 +0200,
(B	<stella@xxxxxx> said:
(B
(B>  I would like to install gfarm in some test machines. I've been trying
(B> to find a good documentation with no luck. I have some questions because
(B> a lot of things where not clear to me. What I have already done is to
(B> create a metadata server, and 2 different nodes. When I try to mount
(B> this gfarm using fuse, the filesystem is mounted,
(B
(B> but I get errors in df command (from the client machine) and I get
(B> errors when I try to write files in the gfarm mount point:
(B>     - # touch a 
(B> STATFS: /: no filesystem node
(B
(BHmm, what is the output of "gfhost -l" on the client machine?
(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> What I would like to understand are:
(B
(B> - What is the purpose oti the gfarm_agent?
(B
(BCaching pathname metadata.
(B
(B> - What is the correct method to register a node. At the moment I'm using
(B> config-gfsd. How do I specify the path in the node that will be part of
(B> the gfarm ? I tried adding     spool /path/to/dir to the gfarm.conf but
(B> when I run config-gfsd -t it says:
(B>   spool directory    : /var/gfarm-spool
(B
(BThe following sentence in "SETUP.en" file describes it:
(BThe spool directory is the only exception, and you can modify it
(Bby the last argument of the config-gfsd commmand. 
(B
(BSo, please try "config-gfsd /path/to/dir"
(B
(B> - How do replicas work? Do I have to run gfrep with crond? 
(B
(BThat's one of ways, yes.
(B
(B> Is it possible to enable replicas by default for every newly created
(B> file? I found a post in the list saying that this is something that
(B> would be done in a next release.
(B
(BIf you are using GfarmFS-FUSE, you can specify the number of replicas
(Bby "-N" option of the gfarmfs command.
(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> - Is there a complete documentation for installation and usage?
(B
(BFor installation notes, please read "SETUP.en" in the distribution.
(BIf you are using gfarm-1.4 RPM binary distribution, all documents are
(Binstalled under /usr/share/doc/gfarm-1.4/.
(B
(BHope this helps.
(B-- 
(Bsoda