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#!/bin/bash

. $(dirname $0)/../include.rc
. $(dirname $0)/../volume.rc
. $(dirname $0)/../nfs.rc

# Skip the entire test if /proc/sys/vm/drop_caches does not exist
if [ ! -f /proc/sys/vm/drop_caches ] ; then
    echo "Skip test using /proc/sys/vm/drop_caches, "\
         "which does not exists on this system" >&2
    SKIP_TESTS
    exit 0
fi

cleanup;

function file_count()
{
        val=1

        if [ "$1" == "0" ]
        then
                if [ "$2" == "0" ]
                then
                        val=0
                fi
        fi
        echo $val
}

BRICK_COUNT=2

TEST glusterd
TEST pidof glusterd

TEST $CLI volume create $V0 $H0:$B0/${V0}0 $H0:$B0/${V0}1
TEST $CLI volume start $V0

EXPECT_WITHIN $NFS_EXPORT_TIMEOUT "1" is_nfs_export_available;
## Mount nfs, with nocache option
TEST mount_nfs $H0:/$V0 $M0 nolock,noac;

touch $M0/files{1..1000};

# Kill a brick process
kill -9 `cat $GLUSTERD_WORKDIR/vols/$V0/run/$H0-d-backends-${V0}0.pid`;

echo 3 >/proc/sys/vm/drop_caches;

ls -l $M0 >/dev/null;

NEW_FILE_COUNT=`echo $?`;

TEST $CLI volume start $V0 force

# Kill a brick process
kill -9 `cat $GLUSTERD_WORKDIR/vols/$V0/run/$H0-d-backends-${V0}1.pid`;

echo 3 >/proc/sys/vm/drop_caches;

ls -l $M0 >/dev/null;

NEW_FILE_COUNT1=`echo $?`;

EXPECT "0" file_count $NEW_FILE_COUNT $NEW_FILE_COUNT1

EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0

cleanup