testcase for the open-behind xlator when open fails

Test if the fops which are put into a stub and are waiting for
the open to complete should be unwound with the error if open
call itself fails.

Change-Id: I8c363d98303a7df1a0ca9ea6ef207c7123fdd388
BUG: 846240
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/4553
Reviewed-by: Anand Avati <avati@redhat.com>
Tested-by: Anand Avati <avati@redhat.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/tests/bugs/bug-846240.t b/tests/bugs/bug-846240.t
new file mode 100644
index 00000000000..5c5fbf0147a
--- /dev/null
+++ b/tests/bugs/bug-846240.t
@@ -0,0 +1,56 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../volume.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume info;
+
+function volinfo_field()
+{
+    local vol=$1;
+    local field=$2;
+
+    $CLI volume info $vol | grep "^$field: " | sed 's/.*: //';
+}
+
+TEST $CLI volume create $V0 $H0:$B0/brick1 $H0:$B0/brick2;
+EXPECT 'Created' volinfo_field $V0 'Status';
+
+TEST $CLI volume start $V0;
+EXPECT 'Started' volinfo_field $V0 'Status';
+
+MOUNTDIR=$M0;
+TEST glusterfs --volfile-server=$H0 --volfile-id=$V0 $MOUNTDIR;
+TEST glusterfs --volfile-server=$H0 --volfile-id=$V0 $M1;
+
+TEST touch $M0/testfile;
+
+# open the file with the fd as 4
+exec 4>"$M0/testfile";
+
+# remove the file from the other mount point. If unlink is sent from
+# $M0 itself, then the file will be actually opened by open-behind which
+# we dont want for this testcase
+TEST rm -f $M1/testfile;
+
+# below command opens the file and writes to the file.
+# upon open, open-behind unwinds the open call with success.
+# now when write comes, open-behind actually opens the file
+# and then sends write on the fd. But before sending open itself,
+# the file would have been removed from the mount $M1. open() gets error
+# and the write call which is put into a stub (open had to be sent first)
+# should unwind with the error received in the open call.
+echo "data" >> $M0/testfile 2>/dev/null 1>/dev/null;
+TEST [ $? -ne 0 ]
+
+exec 4>&-
+
+TEST rm -rf $MOUNTDIR/*
+
+TEST   umount $MOUNTDIR -l
+
+cleanup;