From patchwork Fri Sep 26 04:14:51 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eryu Guan X-Patchwork-Id: 4978351 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id F32E59F3DF for ; Fri, 26 Sep 2014 04:21:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D95512024D for ; Fri, 26 Sep 2014 04:21:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A150A202BE for ; Fri, 26 Sep 2014 04:21:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753228AbaIZEVa (ORCPT ); Fri, 26 Sep 2014 00:21:30 -0400 Received: from mx1.redhat.com ([209.132.183.28]:48031 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753222AbaIZEV3 (ORCPT ); Fri, 26 Sep 2014 00:21:29 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8Q4LS7G019344 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 26 Sep 2014 00:21:29 -0400 Received: from localhost (dhcp-12-153.nay.redhat.com [10.66.12.153]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8Q4LQsi024470; Fri, 26 Sep 2014 00:21:27 -0400 From: Eryu Guan To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, Eryu Guan Subject: [PATCH v4 05/15] btrfs: new case to run btrfs balance and device replace operations simultaneously Date: Fri, 26 Sep 2014 12:14:51 +0800 Message-Id: <1411704901-12723-6-git-send-email-eguan@redhat.com> In-Reply-To: <1411704901-12723-1-git-send-email-eguan@redhat.com> References: <1411704901-12723-1-git-send-email-eguan@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Run btrfs balance and replace operations simultaneously with fsstress running in background. Signed-off-by: Eryu Guan --- common/rc | 73 +++++++++++++++++++++++++++++++ tests/btrfs/063 | 122 ++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/063.out | 2 + tests/btrfs/group | 1 + 4 files changed, 198 insertions(+) create mode 100755 tests/btrfs/063 create mode 100644 tests/btrfs/063.out diff --git a/common/rc b/common/rc index b19533f..28c07f6 100644 --- a/common/rc +++ b/common/rc @@ -2163,6 +2163,24 @@ _require_scratch_dev_pool() done } +# ensure devices in SCRATCH_DEV_POOL are of the same size +# must be called after _require_scratch_dev_pool +_require_scratch_dev_pool_equal_size() +{ + local _size + local _newsize + local _dev + + # SCRATCH_DEV has been set to the first device in SCRATCH_DEV_POOL + _size=`_get_device_size $SCRATCH_DEV` + for _dev in $SCRATCH_DEV_POOL; do + _newsize=`_get_device_size $_dev` + if [ $_size -ne $_newsize ]; then + _notrun "This test requires devices in SCRATCH_DEV_POOL have the same size" + fi + done +} + # We will check if the device is deletable _require_deletable_scratch_dev_pool() { @@ -2634,6 +2652,61 @@ _btrfs_stress_remount_compress() done } +# stress btrfs by replacing devices in a loop +# Note that at least 3 devices are needed in SCRATCH_DEV_POOL and the last +# device should be free(not used by btrfs) +_btrfs_stress_replace() +{ + local btrfs_mnt=$1 + + # The device number in SCRATCH_DEV_POOL should be at least 3, + # one is SCRATCH_DEV, one is to be replaced, one is free device + # we won't replace SCRATCH_DEV, see below for reason + if [ "`echo $SCRATCH_DEV_POOL | wc -w`" -lt 3 ]; then + echo "_btrfs_stress_replace requires at least 3 devices in SCRATCH_DEV_POOL" + return + fi + + # take the last device as the first free_dev + local free_dev="`echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $NF}'`" + + # free_dev should be really free + if $BTRFS_UTIL_PROG filesystem show $btrfs_mnt | grep -q "$free_dev"; then + echo "_btrfs_stress_replace: $free_dev is used by btrfs" + return + fi + + # dev_pool is device list being currently used by btrfs (excluding SCRATCH_DEV) + # and can be replaced. We don't replace SCRATCH_DEV because it will be used in + # _scratch_mount and _check_scratch_fs etc. + local dev_pool=`echo $SCRATCH_DEV_POOL | sed -e "s# *$SCRATCH_DEV *##" \ + -e "s# *$free_dev *##"` + + # set the first device in dev_pool as the first src_dev to be replaced + local src_dev=`echo $dev_pool | $AWK_PROG '{print $1}'` + + echo "dev_pool=$dev_pool" + echo "free_dev=$free_dev, src_dev=$src_dev" + while true; do + echo "Replacing $src_dev with $free_dev" + $BTRFS_UTIL_PROG replace start -fB $src_dev $free_dev $btrfs_mnt + if [ $? -ne 0 ]; then + # don't update src_dev and free_dev if replace failed + continue + fi + dev_pool="$dev_pool $free_dev" + dev_pool=`echo $dev_pool | sed -e "s# *$src_dev *##"` + free_dev=$src_dev + src_dev=`echo $dev_pool | $AWK_PROG '{print $1}'` + done +} + +# return device size in kb +_get_device_size() +{ + grep `_short_dev $1` /proc/partitions | awk '{print $3}' +} + init_rc() { if [ "$iam" == new ] diff --git a/tests/btrfs/063 b/tests/btrfs/063 new file mode 100755 index 0000000..94adc21 --- /dev/null +++ b/tests/btrfs/063 @@ -0,0 +1,122 @@ +#! /bin/bash +# FSQA Test No. btrfs/063 +# +# Run btrfs balance and replace operations simultaneously with fsstress +# running in background. +# +#----------------------------------------------------------------------- +# Copyright (C) 2014 Red Hat Inc. All rights reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux +# we check scratch dev after each loop +_require_scratch_nocheck +_require_scratch_dev_pool 5 +_require_scratch_dev_pool_equal_size +_btrfs_get_profile_configs replace + +rm -f $seqres.full + +run_test() +{ + local mkfs_opts=$1 + local saved_scratch_dev_pool=$SCRATCH_DEV_POOL + + echo "Test $mkfs_opts" >>$seqres.full + + # remove the last device from the SCRATCH_DEV_POOL list so + # _scratch_pool_mkfs won't use all devices in pool + local last_dev="`echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $NF}'`" + SCRATCH_DEV_POOL=`echo $SCRATCH_DEV_POOL | sed -e "s# *$last_dev *##"` + _scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1 + # make sure we created btrfs with desired options + if [ $? -ne 0 ]; then + echo "mkfs $mkfs_opts failed" + SCRATCH_DEV_POOL=$saved_scratch_dev_pool + return + fi + _scratch_mount >>$seqres.full 2>&1 + SCRATCH_DEV_POOL=$saved_scratch_dev_pool + + args=`_scale_fsstress_args -p 20 -n 100 $FSSTRESS_AVOID -d $SCRATCH_MNT/stressdir` + echo "Run fsstress $args" >>$seqres.full + $FSSTRESS_PROG $args >/dev/null 2>&1 & + fsstress_pid=$! + + echo -n "Start balance worker: " >>$seqres.full + _btrfs_stress_balance $SCRATCH_MNT >/dev/null 2>&1 & + balance_pid=$! + echo "$balance_pid" >>$seqres.full + + echo -n "Start replace worker: " >>$seqres.full + _btrfs_stress_replace $SCRATCH_MNT >>$seqres.full 2>&1 & + replace_pid=$! + echo "$replace_pid" >>$seqres.full + + echo "Wait for fsstress to exit and kill all background workers" >>$seqres.full + wait $fsstress_pid + kill $balance_pid $replace_pid + wait + # wait for the balance and replace operations to finish + while ps aux | grep "balance start" | grep -qv grep; do + sleep 1 + done + while ps aux | grep "replace start" | grep -qv grep; do + sleep 1 + done + + echo "Scrub the filesystem" >>$seqres.full + $BTRFS_UTIL_PROG scrub start -B $SCRATCH_MNT >>$seqres.full 2>&1 + if [ $? -ne 0 ]; then + echo "Scrub find errors in \"$mkfs_opts\" test" | tee -a $seqres.full + fi + + _scratch_unmount + # we called _require_scratch_nocheck instead of _require_scratch + # do check after test for each profile config + _check_scratch_fs +} + +echo "Silence is golden" +for t in "${_btrfs_profile_configs[@]}"; do + run_test "$t" +done + +status=0 +exit diff --git a/tests/btrfs/063.out b/tests/btrfs/063.out new file mode 100644 index 0000000..de35fc5 --- /dev/null +++ b/tests/btrfs/063.out @@ -0,0 +1,2 @@ +QA output created by 063 +Silence is golden diff --git a/tests/btrfs/group b/tests/btrfs/group index 7aa9bf3..e234bc2 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -65,3 +65,4 @@ 060 auto balance scrub 061 auto balance defrag compress 062 auto balance remount compress +063 auto balance replace