diff options
| author | Niels de Vos <ndevos@redhat.com> | 2015-03-15 23:07:01 +0100 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2015-03-16 08:41:25 -0700 |
| commit | 0778882d11265f258b3e0f3d9892527ac8ea7341 (patch) | |
| tree | 5c03b0adab5f08ce09d725a28f637a63da417b59 | |
| parent | 0ef870741a2f49d47a02725aed13a95335a6e42f (diff) | |
tests: prevent regular hangs in ec/nfs.t
When the test systems gets into a memory pressure state (the Jenkins VMs
do not have much RAM), the localhost NFS-mount can get hung. It is
possible to prevent this by writing with O_DIRECT. Unfortnately, the
'dd' command on NetBSD does not seem to support such an option.
The alternative is to reduce the I/O that can get cached on the
NFS-client, like reducing the "count" option for "dd".
Change-Id: I1da9cb41133bb934bcbae0a6bc091f798514ed3d
BUG: 1163543
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/9883
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
| -rwxr-xr-x | tests/basic/ec/nfs.t | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tests/basic/ec/nfs.t b/tests/basic/ec/nfs.t index b826296d58b..16e88c1460b 100755 --- a/tests/basic/ec/nfs.t +++ b/tests/basic/ec/nfs.t @@ -15,7 +15,10 @@ EXPECT_WITHIN $PROCESS_UP_TIMEOUT "Started" volinfo_field $V0 'Status' EXPECT_WITHIN $NFS_EXPORT_TIMEOUT "1" is_nfs_export_available; TEST mount_nfs $H0:/$V0 $N0 nolock -TEST dd if=/dev/zero of=$N0/test bs=1024k count=1k +# The test below fails with "bs=1024k count=1k", but passes when "oflag=direct" +# is used. There also does not seem to be an issue on systems with sufficient +# memory. Reducing the "count" prevents hangs too. +TEST dd if=/dev/zero of=$N0/test bs=1024k count=32 ## Before killing daemon to avoid deadlocks EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" umount_nfs $N0 |