From 51c6fa7a354826744de98a1c5c747955ae65850c Mon Sep 17 00:00:00 2001 From: Ravishankar N Date: Fri, 19 Jul 2013 14:23:32 +0000 Subject: glusterd: add check in remove-brick start variant The 'start' variant of the remove-brick command only applies at the dht level wherein we can remove all the bricks of a sub-volume (and remove multiple such sub-volumes) but not select bricks of it. This patch disallows removing individual replica bricks of multiple sub-volumes (i.e. reducing the replcia count of the volume) using remove-brick 'start'. The preferred method for such an operation is to use commit force. This patch also reverts the check to prevent removal of bricks from a replicate volume (commit 0d415f7) BUG: 961669 Change-Id: I447ad27f73a0963b5e09fb317bf7267a7a5a6147 Signed-off-by: Ravishankar N Reviewed-on: http://review.gluster.org/5566 Tested-by: Gluster Build System Reviewed-by: Amar Tumballi Reviewed-by: Anand Avati --- tests/bugs/bug-961669.t | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) (limited to 'tests') diff --git a/tests/bugs/bug-961669.t b/tests/bugs/bug-961669.t index 1b832622..751a63df 100644 --- a/tests/bugs/bug-961669.t +++ b/tests/bugs/bug-961669.t @@ -1,6 +1,6 @@ #!/bin/bash -#Test case: Create a replicate volume; mount and write to it; kill one brick; try to remove the other. +#Test case: Fail remove-brick 'start' variant when reducing the replica count of a volume. . $(dirname $0)/../include.rc . $(dirname $0)/../volume.rc @@ -12,8 +12,8 @@ TEST glusterd TEST pidof glusterd TEST $CLI volume info -#Create a 1x2 replicate volume -TEST $CLI volume create $V0 replica 2 $H0:$B0/${V0}{0,1}; +#Create a 3x3 dist-rep volume +TEST $CLI volume create $V0 replica 3 $H0:$B0/${V0}{0,1,2,3,4,5,6,7,8}; TEST $CLI volume start $V0 # Mount FUSE and create file/directory @@ -22,18 +22,23 @@ TEST touch $M0/zerobytefile.txt TEST mkdir $M0/test_dir TEST dd if=/dev/zero of=$M0/file bs=1024 count=1024 -#Kill one of the bricks. This step can be skipped without affecting the outcome of the test. -kill -9 `cat /var/lib/glusterd/vols/$V0/run/$H0-d-backends-${V0}1.pid`; +function remove_brick_start { + $CLI volume remove-brick $V0 replica 2 $H0:$B0/${V0}{1,4,7} start 2>&1|grep -oE 'success|failed' +} -function remove_brick_status { - $CLI volume remove-brick $V0 replica 1 $H0:$B0/${V0}1 start 2>&1 +function remove_brick { + $CLI volume remove-brick $V0 replica 2 $H0:$B0/${V0}{1,4,7} 2>&1|grep -oE 'success|failed' } -#Remove brick -EXPECT "volume remove-brick start: failed: Removing brick from a replicate volume is not allowed" remove_brick_status; +#remove-brick start variant +#Actual message displayed at cli is: +#"volume remove-brick start: failed: Rebalancing not needed when reducing replica count. Try without the 'start' option" +EXPECT "failed" remove_brick_start; -#Check the volume type -EXPECT "Replicate" echo `$CLI volume info |grep Type |awk '{print $2}'` +#remove-brick commit-force +#Actual message displayed at cli is: +#"volume remove-brick commit force: success" +EXPECT "success" remove_brick TEST umount $M0 TEST $CLI volume stop $V0 -- cgit