From a6e6e1557180f89f0360e3cb9b9e32b465114b5f Mon Sep 17 00:00:00 2001
From: Hongchao Zhang <hongchao.zhang@intel.com>
Date: Tue, 13 Aug 2013 21:40:21 +0800
Subject: [PATCH 1/1] LU-3326 tests: limit the disk space used by run_*.sh

In run_dd.sh and run_tar.sh, limit the disk space to be used
according to the total free disk space and the client counts.

Test-Parameters: envdefinitions=ENABLE_QUOTA=yes \
clientdistro=el6 serverdistro=el6 clientarch=x86_64 \
serverarch=x86_64 \
clientcount=4 osscount=2 mdscount=2 \
austeroptions=-R failover=true useiscsi=true \
testlist=recovery-mds-scale

Change-Id: I61ea1167906312fdb182b67d7169e95cad1b6d72
Signed-off-by: Hongchao Zhang <hongchao.zhang@intel.com>
Signed-off-by: Jian Yu <jian.yu@intel.com>
Reviewed-on: http://review.whamcloud.com/6376
Tested-by: Hudson
Reviewed-by: Minh Diep <minh.diep@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---
 lustre/tests/run_dd.sh         |  6 ++--
 lustre/tests/run_tar.sh        | 63 ++++++++++++++++++++++++------------------
 lustre/tests/test-framework.sh |  1 +
 3 files changed, 40 insertions(+), 30 deletions(-)

diff --git a/lustre/tests/run_dd.sh b/lustre/tests/run_dd.sh
index da11efa..8e1cfdd 100755
--- a/lustre/tests/run_dd.sh
+++ b/lustre/tests/run_dd.sh
@@ -17,7 +17,7 @@ set -x
 
 . $(dirname $0)/functions.sh
 
-assert_env MOUNT END_RUN_FILE LOAD_PID_FILE LFS
+assert_env MOUNT END_RUN_FILE LOAD_PID_FILE LFS CLIENT_COUNT
 
 trap signaled TERM
 
@@ -35,8 +35,8 @@ while [ ! -e "$END_RUN_FILE" ] && $CONTINUE; do
 	# suppress dd xfer stat to workaround buggy coreutils/gettext
 	# combination in RHEL5 and OEL5, see BZ 21264
 	FREE_SPACE=$($LFS df $TESTDIR|awk '/filesystem summary:/ {print $5}')
-	BLKS=$((FREE_SPACE * 9 / 40))
-	echoerr "Free disk space is $FREE_SPACE, 4k blocks to dd is $BLKS"
+	BLKS=$((FREE_SPACE * 9 / 40 / CLIENT_COUNT))
+	echoerr "Total free disk space is $FREE_SPACE, 4k blocks to dd is $BLKS"
 
 	dd bs=4k count=$BLKS status=noxfer if=/dev/zero of=$TESTDIR/dd-file \
 								1>$LOG &
diff --git a/lustre/tests/run_tar.sh b/lustre/tests/run_tar.sh
index f46b874..823c781 100755
--- a/lustre/tests/run_tar.sh
+++ b/lustre/tests/run_tar.sh
@@ -17,7 +17,7 @@ set -x
 
 . $(dirname $0)/functions.sh
 
-assert_env MOUNT END_RUN_FILE LOAD_PID_FILE
+assert_env MOUNT END_RUN_FILE LOAD_PID_FILE LFS CLIENT_COUNT
 
 trap signaled TERM
 
@@ -33,32 +33,41 @@ do_tar() {
 
 CONTINUE=true
 while [ ! -e "$END_RUN_FILE" ] && $CONTINUE; do
-    echoerr "$(date +'%F %H:%M:%S'): tar run starting"
-    mkdir -p $TESTDIR
-    cd $TESTDIR
-    do_tar &
-    wait $!
-    RC=$?
-    PREV_ERRORS=$(grep "exit delayed from previous errors" $LOG) || true
-    if [ $RC -ne 0 -a "$ERRORS_OK" -a "$PREV_ERRORS" ]; then
-        echoerr "$(date +'%F %H:%M:%S'): tar errors earlier, ignoring"
-        RC=0
-    fi
-    if [ $RC -eq 0 ]; then
-        echoerr "$(date +'%F %H:%M:%S'): tar succeeded"
-        cd $TMP
-        rm -rf $TESTDIR
-        echoerr "$(date +'%F %H:%M:%S'): tar run finished"
-    else
-        echoerr "$(date +'%F %H:%M:%S'): tar failed"
-        if [ -z "$ERRORS_OK" ]; then
-            echo $(hostname) >> $END_RUN_FILE
-        fi
-        if [ $BREAK_ON_ERROR ]; then
-            # break
-            CONTINUE=false
-        fi
-    fi
+	echoerr "$(date +'%F %H:%M:%S'): tar run starting"
+	mkdir -p $TESTDIR
+	USAGE=$(du -s /etc | awk '{print $1}')
+	FREE_SPACE=$($LFS df $TESTDIR | awk '/filesystem summary:/ {print $5}')
+	AVAIL=$((FREE_SPACE * 9 / 10 / CLIENT_COUNT))
+	if [ $AVAIL -lt $USAGE ]; then
+		echoerr "no enough free disk space: need $USAGE, avail $AVAIL"
+		echo $(hostname) >> $END_RUN_FILE
+		break
+	fi
+
+	cd $TESTDIR
+	do_tar &
+	wait $!
+	RC=$?
+	PREV_ERRORS=$(grep "exit delayed from previous errors" $LOG) || true
+	if [ $RC -ne 0 -a "$ERRORS_OK" -a "$PREV_ERRORS" ]; then
+		echoerr "$(date +'%F %H:%M:%S'): tar errors earlier, ignoring"
+		RC=0
+	fi
+	if [ $RC -eq 0 ]; then
+		echoerr "$(date +'%F %H:%M:%S'): tar succeeded"
+		cd $TMP
+		rm -rf $TESTDIR
+		echoerr "$(date +'%F %H:%M:%S'): tar run finished"
+	else
+		echoerr "$(date +'%F %H:%M:%S'): tar failed"
+		if [ -z "$ERRORS_OK" ]; then
+			echo $(hostname) >> $END_RUN_FILE
+		fi
+		if [ $BREAK_ON_ERROR ]; then
+			# break
+			CONTINUE=false
+		fi
+	fi
 done
 
 echoerr "$(date +'%F %H:%M:%S'): tar run exiting"
diff --git a/lustre/tests/test-framework.sh b/lustre/tests/test-framework.sh
index 963db0b..acaf0e8 100644
--- a/lustre/tests/test-framework.sh
+++ b/lustre/tests/test-framework.sh
@@ -1664,6 +1664,7 @@ TESTLOG_PREFIX=$TESTLOG_PREFIX \
 TESTNAME=$TESTNAME \
 DBENCH_LIB=$DBENCH_LIB \
 DBENCH_SRC=$DBENCH_SRC \
+CLIENT_COUNT=$((CLIENTCOUNT - 1)) \
 LFS=$LFS \
 run_${load}.sh" &
     local ppid=$!
-- 
1.8.3.1