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https://issues.apache.org/jira/browse/HADOOP-4106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12630678#action_12630678
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Craig Macdonald commented on HADOOP-4106:
-----------------------------------------
Pete,
1.
Is it for connectAsUser or chown that you are having the issue?
See my attachment for HADOOP-3536. This worked OK for me on Linux, and MacOSX
IIRC.
2. Also, I was thinking about the {{gid_t uid = context->gid;}}
Surely this only gives the default group of the user? How would this work in my
setting, where my default group represents my status, while most files are
protected on a groups which are assigned on a project level basis?
In the RPC mechanism used by NFS, the following struct is used to pass
authentication information from client to server (source:
https://trac.eecs.iu-bremen.de/projects/scotty/browser/branches/tubs/compat/rpc/auth_unix.h?rev=885):
{code}
struct authunix_parms {
u_long aup_time;
char *aup_machname;
int aup_uid;
int aup_gid;
u_int aup_len;
int *aup_gids;
};
{code}
The point s that a process accessing a file in the NFS client has a uid and a
gid. However, the NFS client supplements the gid with the other gids that the
user belongs to. We should do likewise.
> add time, permission and user attribute support to fuse-dfs
> -----------------------------------------------------------
>
> Key: HADOOP-4106
> URL: https://issues.apache.org/jira/browse/HADOOP-4106
> Project: Hadoop Core
> Issue Type: New Feature
> Components: contrib/fuse-dfs
> Reporter: Pete Wyckoff
> Assignee: Pete Wyckoff
> Fix For: 0.19.0
>
> Attachments: HADOOP-4106.txt, HADOOP-4106.txt
>
>
> add:
> dfs_chown
> dfs_utime
> dfs_chmod
> Change open to have its own FS on writes (should we do this on reads too??)
> and use it for writes and disconnect when closing the file
> Chane mkdir to open the FS itself and then close it
> also added comments for dfs_access (which needs FileSystem support/libhdfs
> support) and I added the dfs_symlink and truncate since these 3 are the only
> 3 things left as far as functionality.
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