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authorPranith Kumar K <pkarampu@redhat.com>2015-01-08 15:39:40 +0530
committerPranith Kumar Karampuri <pkarampu@redhat.com>2015-01-28 19:49:53 -0800
commita48b18d6f661f863371e625084a88a01aaf989f0 (patch)
treea45a7bad629f4c2b37670db79ab03e80ab1b0c30 /tests
parentb17122ffc75c65bda2cf3b3d99832bbf2718e8d3 (diff)
cluster/ec: Handle CHILD UP/DOWN in all cases
Problem: When all the bricks are down at the time of mounting the volume, then mount command hangs. Fix: 1. Ignore all CHILD_CONNECTING events comming from subvolumes. 2. On timer expiration (without enough up or down childs) send CHILD_DOWN. 3. Once enough up or down subvolumes are detected, send the appropriate event. When rest of the subvols go up/down without changing the overall ec-up/ec-down send CHILD_MODIFIED to parent subvols. Change-Id: Ie0194dbadef2dce36ab5eb7beece84a6bf3c631c BUG: 1179180 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9396 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com>
Diffstat (limited to 'tests')
-rw-r--r--tests/basic/ec/ec-notify.t79
1 files changed, 79 insertions, 0 deletions
diff --git a/tests/basic/ec/ec-notify.t b/tests/basic/ec/ec-notify.t
new file mode 100644
index 00000000000..586be91bdbe
--- /dev/null
+++ b/tests/basic/ec/ec-notify.t
@@ -0,0 +1,79 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+
+# This test checks notify part of ec
+
+cleanup
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume create $V0 disperse 3 redundancy 1 $H0:$B0/${V0}{0..2}
+TEST $CLI volume start $V0
+
+#First time mount tests.
+# When all the bricks are up, mount should succeed and up-children
+# count should be 3
+TEST $GFS --volfile-id=/$V0 --volfile-server=$H0 $M0;
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "3" ec_child_up_count $V0 0
+TEST stat $M0
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
+
+# When the volume is stopped mount succeeds and up-children will be 0
+TEST $CLI volume stop $V0
+TEST $GFS --volfile-id=/$V0 --volfile-server=$H0 $M0;
+# Wait for 5 seconds even after that up_count should show 0
+sleep 5;
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "0" ec_child_up_count $V0 0
+TEST ! stat $M0
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
+
+# When 2 bricks are up, mount should succeed and up-children
+# count should be 2
+
+TEST $CLI volume start $V0
+TEST kill_brick $V0 $H0 $B0/${V0}2
+TEST $GFS --volfile-id=/$V0 --volfile-server=$H0 $M0;
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "2" ec_child_up_count $V0 0
+TEST stat $M0
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
+
+# When only 1 brick is up mount should fail.
+TEST kill_brick $V0 $H0 $B0/${V0}1
+TEST $GFS --volfile-id=/$V0 --volfile-server=$H0 $M0;
+# Wait for 5 seconds even after that up_count should show 1
+sleep 5
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" ec_child_up_count $V0 0
+TEST ! stat $M0
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
+
+# Mount already succeeded. Test that the brick up down are leading to correct
+# state changes in ec.
+TEST $CLI volume stop $V0
+TEST $CLI volume start $V0 force
+TEST $GFS --volfile-id=/$V0 --volfile-server=$H0 $M0;
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "3" ec_child_up_count $V0 0
+TEST touch $M0/a
+
+# kill 1 brick and the up_count should become 2, fops should still succeed
+TEST kill_brick $V0 $H0 $B0/${V0}1
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "2" ec_child_up_count $V0 0
+TEST touch $M0/b
+
+# kill one more brick and the up_count should become 1, fops should fail
+TEST kill_brick $V0 $H0 $B0/${V0}2
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" ec_child_up_count $V0 0
+TEST ! touch $M0/c
+
+# kill one more brick and the up_count should become 0, fops should still fail
+TEST kill_brick $V0 $H0 $B0/${V0}0
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "0" ec_child_up_count $V0 0
+TEST ! touch $M0/c
+
+# Bring up all the bricks up and see that up_count is 3 and fops are succeeding
+# again.
+TEST $CLI volume start $V0 force
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "3" ec_child_up_count $V0 0
+TEST touch $M0/c
+
+cleanup