glusterfs.git/xlators/nfs/server/src/mount3.c, branch v3.2.0qa16

mount3: Do not return error when mount list is empty

2011-02-04T19:21:34+00:00

An exports list can be empty when no subvolumes have come up.
No point returning error and confusing the user.

Signed-off-by: Shehjar Tikoo 
Signed-off-by: Anand V. Avati 

BUG: 2345 (Taking distribute brick down returns 10006 error on mount command)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2345

Logging : Use of uuid_utoa and uuid_utoa_r.

2011-02-04T08:39:26+00:00

Signed-off-by: Gaurav 
Signed-off-by: Anand V. Avati 

BUG: 2308 (Threadsafe uuid to string conversion function)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2308

nfs: Support subdirectory exports

2010-12-29T18:20:36+00:00

Enable exporting directories as separate exports. Even though the directories
wont show up in showmount output, they'll still be mount'able.

The new option:

        nfs.export-dirs 

is enabled by default so that users dont have to wait till this option
is incorporated into the gluster command line.

Signed-off-by: Shehjar Tikoo 
Signed-off-by: Anand V. Avati 

BUG: 1743 (XenServer is not compatible with GlusterNFS)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1743

nfs: Export subvolumes on per-subvolume CHILD-UP

2010-11-25T14:35:26+00:00

..so that nfs clients can mount an UP subvolume even if other subvolumes
havent come up yet.

This was a problem because nfs was waiting for all children to receive
CHILD-UP before exporting any subvolume.

Signed-off-by: Shehjar Tikoo 
Signed-off-by: Anand V. Avati 

BUG: 2093 (volumes cannot start when one node in a replicated setup is down)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2093

mnt3: Fail mount requests for disallowed clients

2010-11-09T10:12:15+00:00

Signed-off-by: Shehjar Tikoo 
Signed-off-by: Anand V. Avati 

BUG: 1385 (showmount says no access though it can be mounted.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1385

mnt3: Fix UMNTALL crash with Windows clients

2010-11-03T11:25:54+00:00

Signed-off-by: Shehjar Tikoo 
Signed-off-by: Anand V. Avati 

BUG: 1666 (GlustNFS is incompatible with Windows 7 NFS client.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1666

nfs: Revert downed-subvolume changes

2010-10-07T12:08:59+00:00

For the record these are the patches committed as:

1. "nfs, nfs3: Base volume access on CHILD-UP-DOWN event"
http://git.gluster.com/?p=glusterfs.git;a=commit;h=f47b0c55de9941823fbefe4b3a7e37179d6d4329

2. "nfs: Fix multiple subvolume CHILD-UP support"
http://git.gluster.com/?p=glusterfs.git;a=commit;h=336e2df7b74be7ad4c9ed403ca10b9f7f7ef9a58

3. "nfs,nfs3: Disable subvolume on ENOTCONN"
http://git.gluster.com/?p=glusterfs.git;a=commit;h=8c6e27cdaf895e3031c3256efb9472a6c0bf61f3

Signed-off-by: Shehjar Tikoo 
Signed-off-by: Vijay Bellur 

BUG: 1724 (kernel untar fails during add-brick)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1724

Change GNU GPL to GNU AGPL

2010-10-04T14:50:05+00:00

Signed-off-by: Pranith Kumar K 
Signed-off-by: Vijay Bellur 

BUG: 1388 ()
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1388

nfs, nfs3: Base volume access on CHILD-UP-DOWN event

2010-09-22T11:14:27+00:00

Overall, the aim of this patch is to change the result of an nfs
op depending on whether the underlying volume is up or down
as notified by CHILD_UP and CHILD_DOWN events.

This patch contains three intertwined changes:
o Only when the lookup on the root of a volume is successful does gnfs now
export the subvolume. Till now the result of the lookup was not used to
determine whether we should export that volume. Not accounting for root lookup
failure resulted in ESTALEs on first access because some children of distribute
were down at the time of the root lookup.

o Only when lookups on all the subvolumes have succeeded are
these exports enabled through NFS.

o When a child of say distribute goes down, on CHILD_DOWN event nfs will
ignore all incoming requests from the client because ignoring these
will prevent ESTALEs for those requests and in the hope that ignoring the
requests will make the client retransmit. There are risks in this approach
absent the DRC but we're willing to live with that for now.
When a child goes down, the mount exports list will continue to show it
but mount requests will be denied.

Signed-off-by: Shehjar Tikoo 
Signed-off-by: Vijay Bellur 

BUG: 1643 (Initial requests after mount ESTALE if DHT subvolumes connect after nfs startup)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1643

nfs,nfs3,mnt3: Transition fh resolution to gfid

2010-09-14T09:32:03+00:00

Signed-off-by: Shehjar Tikoo 
Signed-off-by: Vijay Bellur 

BUG: 971 (dynamic volume management)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971