diff options
| author | Niels de Vos <ndevos@redhat.com> | 2013-08-09 14:17:33 +0200 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2013-08-28 06:54:44 -0700 |
| commit | bbefeffafe9a2a5ba493e4bc0c9c9480d577e881 (patch) | |
| tree | fa1b0a6bb3dac52a26a773da4d023e37ff2e4608 /xlators/nfs/server/src/Makefile.am | |
| parent | cd2537541540074a5db452a49f9be220e3d76d32 (diff) | |
nfs: persistent caching of connected NFS-clients
Introduce /var/lib/glusterfs/nfs/rmtab to contain a list of NFS-clients
which have a volume mounted. The volume option 'nfs.mount-rmtab' can be
set to an alternative filename. When the file is located on shared
storage, multiple gNFS servers can use the same file to present a single
NFS-server.
This cache is read when a system administrator calls 'showmount -a' and
updated when an NFS-client calls MNT or UMNT from the MOUNT protocol.
Usage:
- create a volume for storing the shared rmtab file
- mount the volume on all storage servers, at the same location
- make sure that the volume is mounted at boot (add to /etc/fstab)
- place the rmtab file on the volume:
# gluster volume set <VOLUME> nfs.mount-rmtab <MOUNTPOINT>/<FILENAME>
- any subsequent mount requests will add an entry to this file
- 'showmount -a' requests will return the NFS-clients using the cluster
Note:
The NFS-server does currently not support reconfigure(). When a
configuration option is set/changed, the NFS-server glusterfs process
gets restarted. This causes the active NFS-clients to be forgotten (the
entries are saved in the old rmtab, but we do not have a reference to
that file any more, so we can't re-add them). Therefor a re-mount done
by the NFS-clients is needed before they get listed in the rmtab again.
Change-Id: I58f47135d60ad112849d647bea4e1129683dd2b3
BUG: 904065
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/4430
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
Tested-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Diffstat (limited to 'xlators/nfs/server/src/Makefile.am')
| -rw-r--r-- | xlators/nfs/server/src/Makefile.am | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xlators/nfs/server/src/Makefile.am b/xlators/nfs/server/src/Makefile.am index 2795a935d89..62fbf6535ca 100644 --- a/xlators/nfs/server/src/Makefile.am +++ b/xlators/nfs/server/src/Makefile.am @@ -14,7 +14,7 @@ noinst_HEADERS = nfs.h nfs-common.h nfs-fops.h nfs-inodes.h nfs-generics.h \ AM_CPPFLAGS = $(GF_CPPFLAGS) \ -DLIBDIR=\"$(libdir)/glusterfs/$(PACKAGE_VERSION)/auth\" \ -I$(top_srcdir)/libglusterfs/src \ - -I$(nfsrpclibdir) -I$(CONTRIBDIR)/rbtree\ + -I$(nfsrpclibdir) -I$(CONTRIBDIR)/rbtree \ -I$(top_srcdir)/rpc/xdr/src/ AM_CFLAGS = -Wall $(GF_CFLAGS) |