nfs: make it possible to disable nfs.mount-rmtab

When there are many NFS-clients doing very often mount/unmount actions,
the updating of the 'rmtab' can become a bottleneck and cause delays. In
these situations, the output of 'showmount' may be less important than
the responsiveness of the (un)mounting.

By setting 'nfs.mount-rmtab' to the value "/-", the cache file is not
updated anymore, and the entries are only kept in memory.

Cherry picked from commit 40407afb529f6e5fa2f79e9778c2f527122d75eb:
> Cherry picked from commit 331ef6e1a86bfc0a93f8a9dec6ad35c417873849:
>> BUG: 1169317
>> Change-Id: I40c4d8d754932f86fb2b1b2588843390464c773d
>> Reported-by: Cyril Peponnet <cyril@peponnet.fr>
>> Signed-off-by: Niels de Vos <ndevos@redhat.com>
>> Reviewed-on: http://review.gluster.org/9223
>> Tested-by: Gluster Build System <jenkins@build.gluster.com>
>> Reviewed-by: soumya k <skoduri@redhat.com>
>> Reviewed-by: jiffin tony Thottan <jthottan@redhat.com>
>> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
>
> This change also contains the fixes to the test-case from:
>>
>> nfs: fix spurious failure in bug-1166862.t
>>
>> In some environments, "showmount" could return an NFS-client that does
>> not start with "1". This would cause the test-case to fail. The check is
>> incorrect, the number of lines should get counted instead.
>>
>> Also moving the test-case to the .../nfs/... subdirectory.
>>
>> Cherry picked from commit ee9b35a780607daddc2832b9af5ed6bf414aebc0:
>> BUG: 1166862
>> Change-Id: Ic03aa8145ca57d78aea01564466e924b03bb302a
>> Signed-off-by: Niels de Vos <ndevos@redhat.com>
>> Reviewed-on: http://review.gluster.org/10419
>> Tested-by: Gluster Build System <jenkins@build.gluster.com>
>> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
>>
>
> Change-Id: I40c4d8d754932f86fb2b1b2588843390464c773d
> BUG: 1215385
> Signed-off-by: Niels de Vos <ndevos@redhat.com>
> Reviewed-on: http://review.gluster.org/10379
> Tested-by: NetBSD Build System
> Tested-by: Gluster Build System <jenkins@build.gluster.com>
> Reviewed-by: Vijay Bellur <vbellur@redhat.com>

GLUSTERD_WORKDIR has been added to tests/include.rc and is not
configurable through ./configure like on newer branches. It is not
suitable to change the GlusterD working directory in an update for a
stable release.

Change-Id: I40c4d8d754932f86fb2b1b2588843390464c773d
BUG: 1166862
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/11336
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: jiffin tony Thottan <jthottan@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>

0 files changed, 0 insertions, 0 deletions