1 files changed, 75 insertions, 0 deletions
diff --git a/tests/performance/open-behind.t b/tests/performance/open-behind.t
new file mode 100755
index 00000000000..002a98a8352
--- /dev/null
+++ b/tests/performance/open-behind.t
@@ -0,0 +1,75 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../volume.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume info 2>/dev/null;
+
+TEST $CLI volume create $V0 $H0:$B0/${V0}{1,2};
+TEST $CLI volume set $V0 performance.flush-behind off;
+
+TEST $CLI volume start $V0;
+
+## Mount FUSE
+TEST $GFS -s $H0 --volfile-id $V0 $M0;
+
+TEST $GFS -s $H0 --volfile-id $V0 $M1;
+
+D0="hello-this-is-a-test-message0";
+F0="test-file0";
+
+function write_to()
+{
+    local file="$1";
+    local data="$2";
+
+    echo "$data" > "$file";
+}
+
+
+TEST write_to "$M0/$F0" "$D0";
+EXPECT "$D0" cat $M1/$F0;
+
+# open-behind delays open and uses anonymous fds for fops like
+# fstat and readv. So after creating the file, if volume is restarted
+# then later when the file is read, because of the use of anonymous fds
+# volume top open will show number of files opened as 0.
+TEST $CLI volume stop $V0;
+sleep 1;
+TEST $CLI volume start $V0;
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "^1$" client_connected_status_meta $M0 ${V0}-client-0
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "^1$" client_connected_status_meta $M0 ${V0}-client-1
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "^1$" client_connected_status_meta $M1 ${V0}-client-0
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "^1$" client_connected_status_meta $M1 ${V0}-client-1
+
+cat $M1/$F0 >/dev/null;
+
+string=$(gluster volume top $V0 open | grep -w "$F0");
+
+EXPECT "" echo $string;
+
+TEST $CLI volume set $V0 performance.open-behind off;
+
+EXPECT_WITHIN $GRAPH_SWITCH_TIMEOUT "2" num_graphs $M0;
+EXPECT_WITHIN $GRAPH_SWITCH_TIMEOUT "2" num_graphs $M1;
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "^1$" client_connected_status_meta $M0 ${V0}-client-0
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "^1$" client_connected_status_meta $M0 ${V0}-client-1
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "^1$" client_connected_status_meta $M1 ${V0}-client-0
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "^1$" client_connected_status_meta $M1 ${V0}-client-1
+
+D1="hello-this-is-a-test-message1";
+F1="test-file1";
+
+TEST write_to "$M0/$F1" "$D1";
+EXPECT "$D1" cat $M1/$F1;
+
+EXPECT "$D0" cat $M1/$F0;
+
+$CLI volume top $V0 open | grep -w "$F0" >/dev/null 2>&1
+TEST [ $? -eq 0 ];
+
+cleanup;