glusterd, cli: Task id's for async tasks

This patch introduces task-id's for async tasks like rebalance, remove-brick and
replace-brick. An id is generated for each task when it is started and displayed
to the user in cli output. The status of running tasks is also included in the
output of "volume status" along with its id, so that a user can easily track the
progress of an async task.

Also,
 * added tests for this feature into the regression test suite.
 * added a python script for creating files, 'create-files.py', courtesy
   Vijaykumar Koppad (vkoppad@redhat.com) into the test suite.

Change-Id: Ib0c0d12e0d6c8f72ace48d303d7ff3102157e876
BUG: 857330
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/3942
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/tests/bugs/bug-857330/normal.t b/tests/bugs/bug-857330/normal.t
new file mode 100755
index 00000000000..abf8e2ac503
--- /dev/null
+++ b/tests/bugs/bug-857330/normal.t
@@ -0,0 +1,78 @@
+#!/bin/bash
+
+. $(dirname $0)/common.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume info;
+
+TEST $CLI volume create $V0 $H0:$B0/${V0}1;
+TEST $CLI volume info $V0;
+TEST $CLI volume start $V0;
+
+TEST glusterfs -s $H0 --volfile-id=$V0 $M0;
+
+TEST python2 $(dirname $0)/../../utils/create-files.py --multi -b 10 -d 10  -n 10 $M0;
+
+TEST umount $M0;
+
+###############
+## Rebalance ##
+###############
+TEST $CLI volume add-brick $V0 $H0:$B0/${V0}2;
+
+COMMAND="volume rebalance $V0 start"
+PATTERN="ID:"
+TEST check-and-store-task-id
+
+COMMAND="volume status $V0"
+PATTERN="Rebalance"
+TEST check-with-stored-task-id
+
+COMMAND="volume rebalance $V0 status"
+PATTERN="completed"
+EXPECT_WITHIN 300 $PATTERN get-task-status
+
+###################
+## Replace-brick ##
+###################
+REP_BRICK_PAIR="$H0:$B0/${V0}2 $H0:$B0/${V0}3"
+
+COMMAND="volume replace-brick $V0 $REP_BRICK_PAIR start"
+PATTERN="ID:"
+TEST check-and-store-task-id
+
+COMMAND="volume status $V0"
+PATTERN="Replace"
+TEST check-with-stored-task-id
+
+COMMAND="volume replace-brick $V0 $REP_BRICK_PAIR status"
+PATTERN="complete"
+EXPECT_WITHIN 300 $PATTERN get-task-status
+
+TEST $CLI volume replace-brick $V0 $REP_BRICK_PAIR commit;
+
+##################
+## Remove-brick ##
+##################
+COMMAND="volume remove-brick $V0 $H0:$B0/${V0}3 start"
+PATTERN="ID:"
+TEST check-and-store-task-id
+
+COMMAND="volume status $V0"
+PATTERN="Remove"
+TEST check-with-stored-task-id
+
+COMMAND="volume remove-brick $V0 $H0:$B0/${V0}3 status"
+PATTERN="completed"
+EXPECT_WITHIN 300 $PATTERN get-task-status
+
+TEST $CLI volume remove-brick $V0 $H0:$B0/${V0}3 commit
+
+TEST $CLI volume stop $V0;
+TEST $CLI volume delete $V0;
+TEST ! $CLI volume info $V0;
+
+cleanup;