1 files changed, 53 insertions, 0 deletions
diff --git a/tests/basic/mpx-compat.t b/tests/basic/mpx-compat.t
new file mode 100644
index 00000000000..baf629dbf9b
--- /dev/null
+++ b/tests/basic/mpx-compat.t
@@ -0,0 +1,53 @@
+#!/bin/bash
+#This test tests that self-heals don't perform fsync when durability is turned
+#off
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../traps.rc
+. $(dirname $0)/../volume.rc
+
+function count_processes {
+	# It would generally be a good idea to use "pgrep -x" to ensure an
+	# exact match, but the version of pgrep we have on NetBSD (a.k.a.
+	# the worst operating system ever) doesn't support that option.
+	# Fortunately, "glusterfsd" isn't the prefix of any other name,
+	# so this works anyway.  For now.
+	pgrep glusterfsd | wc -w
+}
+
+function count_brick_pids {
+        $CLI --xml volume status all | sed -n '/.*<pid>\([^<]*\).*/s//\1/p' \
+                                     | grep -v "N/A" | sort | uniq | wc -l
+}
+
+cleanup
+TEST glusterd
+TEST $CLI volume set all cluster.brick-multiplex yes
+
+# Create two vanilla volumes.
+TEST $CLI volume create $V0 $H0:$B0/brick-${V0}-{0,1}
+TEST $CLI volume create $V1 $H0:$B0/brick-${V1}-{0,1}
+
+# Enable brick log-level to DEBUG
+gluster v set $V0 diagnostics.brick-log-level DEBUG
+
+# Start both.
+TEST $CLI volume start $V0
+TEST $CLI volume start $V1
+
+# There should be only one process for compatible volumes.  We can't use
+# EXPECT_WITHIN here because it could transiently see one process as two are
+# coming up, and yield a false positive.
+sleep $PROCESS_UP_TIMEOUT
+EXPECT "1" count_processes
+EXPECT 1 count_brick_pids
+
+# Make the second volume incompatible with the first.
+TEST $CLI volume stop $V1
+TEST $CLI volume set $V1 server.manage-gids no
+TEST $CLI volume start $V1
+
+# There should be two processes this time (can't share protocol/server).
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "2" count_processes
+
+cleanup;
+\ No newline at end of file