From f7452bafb79d94c88b5fb390e431b06e79325f99 Mon Sep 17 00:00:00 2001
From: "John L. Hammond" <john.hammond@intel.com>
Date: Thu, 26 May 2016 14:34:42 -0500
Subject: [PATCH] LU-4781 test: wait for dbench to stop

In lustre-rsync-test.sh after sending a SIGSTOP to dbench, wait for
all dbench processes to show a stopped state.

Test-Parameters: testlist=lustre-rsync-test,lustre-rsync-test,lustre-rsync-test,lustre-rsync-test,lustre-rsync-test,lustre-rsync-test
Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I22767b5002ca4e1b5b1d596380591dc5130ee11d
Reviewed-on: http://review.whamcloud.com/20471
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
---
 lustre/tests/lustre-rsync-test.sh | 38 +++++++++++++++++++++++++++++++++++---
 1 file changed, 35 insertions(+), 3 deletions(-)

diff --git a/lustre/tests/lustre-rsync-test.sh b/lustre/tests/lustre-rsync-test.sh
index 85d683a..b3fe03d 100644
--- a/lustre/tests/lustre-rsync-test.sh
+++ b/lustre/tests/lustre-rsync-test.sh
@@ -121,6 +121,38 @@ check_diff() {
 	fi
 }
 
+procs_are_stopped() {
+	local pids="$*"
+	local state
+
+	for state in $(ps -p "$pids" -o state=); do
+		if [[ "$state" != T ]]; then
+			return 1
+		fi
+	done
+
+	return 0
+}
+
+# Send SIGSTOP to PIDs and wait up to 60 seconds for them to show a
+# stopped process state.
+stop_procs() {
+	local pids="$*"
+	local end
+
+	$KILL -SIGSTOP $pids
+	end=$((SECONDS + 60))
+	while ((SECONDS < end)); do
+		if procs_are_stopped $pids; then
+			return 0
+		fi
+
+		sleep 1
+	done
+
+	return 1
+}
+
 # Test 1 - test basic operations
 test_1() {
     init_src
@@ -291,7 +323,7 @@ test_2b() {
 
 	echo PIDs: $child_pid
 	echo Stopping dbench
-	$KILL -SIGSTOP $child_pid
+	stop_procs $child_pid
 
 	local LRSYNC_LOG=$(generate_logname "lrsync_log")
 	echo Starting replication
@@ -304,7 +336,7 @@ test_2b() {
     sleep 10
 
     echo Stopping dbench
-    $KILL -SIGSTOP $child_pid
+	stop_procs $child_pid
 
 	echo Starting replication
 	$LRSYNC -l $LREPL_LOG -D $LRSYNC_LOG
@@ -444,7 +476,7 @@ test_4() {
         MOUNT=${DIR}/$tdir run_iozone.sh &
     sleep 30
     child_pid=$(pgrep iozone)
-    $KILL -SIGSTOP $child_pid
+	stop_procs $child_pid
 
 	local LRSYNC_LOG=$(generate_logname "lrsync_log")
 	# Replicate the changes to $TGT
-- 
1.8.3.1