302 lines
7.7 KiB
Bash
Executable File
302 lines
7.7 KiB
Bash
Executable File
#!/bin/bash
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License, Version 1.0 only
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# (the "License"). You may not use this file except in compliance
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# with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or http://www.opensolaris.org/os/licensing.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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#
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# Copyright 2007 Sun Microsystems, Inc. All rights reserved.
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# Use is subject to license terms.
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#
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# Linux version
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#
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# To run just type ziltest.sh
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#
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# - creates a 200MB pool in /var/tmp/
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# - prints information on:
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# working set files
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# ZIL records written
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# ZIL block usage
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# verification results
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# - returns status of 0 on success
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#
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##########################################################################
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#
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# Here's how it all works:
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#
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# The general idea is to build up
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# an intent log from a bunch of diverse user commands
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# without actually committing them to the file system.
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# Then copy the file system, replay the intent
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# log and compare the file system and the copy.
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#
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# To enable this automated testing of the intent log
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# requires some but minimal support from the file system.
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# In particular, a "freeze" command is required to flush
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# the in-flight transactions; to stop the actual
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# committing of transactions; and to ensure no deltas are
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# discarded. All deltas past a freeze point are kept for
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# replay and comparison later. Here is the flow:
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#
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# create an empty file system (FS)
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# freeze FS
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# run various user commands that create files, directories and ACLs
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# copy FS to temporary location (COPY)
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# unmount filesystem
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# <at this stage FS is empty again and unfrozen, and the
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# intent log contains a complete set of deltas to replay it>
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# remount FS <which replays the intent log>
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# compare FS against the COPY
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#
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PATH=/usr/bin
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PATH=$PATH:/usr/sbin
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PATH=$PATH:/bin
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PATH=$PATH:/sbin
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export PATH
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# ====================================================================
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# SETUP
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# ====================================================================
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CMD=$(basename "$0")
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POOL=ziltestpool.$$
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DEVSIZE=${DEVSIZE-200m}
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POOLDIR=/var/tmp
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POOLFILE=$POOLDIR/ziltest_poolfile.$$
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SLOGFILE=$POOLDIR/ziltest_slog.$$
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FS=$POOL/fs
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ROOT=/$FS
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COPY=/var/tmp/${POOL}
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KEEP=no
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cleanup()
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{
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zfs destroy -rf $FS
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echo "$CMD: pool I/O summary & status:"
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echo "----------------------------------------------------"
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zpool iostat $POOL
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echo
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zpool status $POOL
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echo "----------------------------------------------------"
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echo
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zpool destroy -f $POOL
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rm -rf $COPY
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rm $POOLFILE $SLOGFILE
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}
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bail()
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{
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test $KEEP = no && cleanup
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echo "$1"
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exit 1
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}
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test $# -eq 0 || bail "usage: $CMD"
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# ====================================================================
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# PREP
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#
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# Create a pool using a file based vdev
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# Create a destination for runtime copy of FS
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# Freeze transaction syncing in the pool
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# ====================================================================
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fallocate -l "$DEVSIZE" $POOLFILE || bail "can't make $POOLFILE"
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fallocate -l "$DEVSIZE" $SLOGFILE || bail "can't make $SLOGFILE"
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zpool create $POOL $POOLFILE log $SLOGFILE || bail "can't create pool
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$POOL"
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zpool list $POOL
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zfs set compression=on $POOL || bail "can't enable compression on $POOL"
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zfs create $FS || bail "can't create $FS"
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mkdir -p $COPY || bail "can't create $COPY"
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#
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# This dd command works around an issue where ZIL records aren't created
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# after freezing the pool unless a ZIL header already exists. Create a file
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# synchronously to force ZFS to write one out.
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#
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dd if=/dev/zero of=$ROOT/sync conv=fdatasync,fsync bs=1 count=1 2> /dev/null
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zpool freeze $POOL || bail "can't freeze $POOL"
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# ====================================================================
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# TESTS
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#
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# Add operations here that will add commit records to the ZIL
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#
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# Use $ROOT for all file name prefixes
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# ====================================================================
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#
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# TX_CREATE
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#
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touch $ROOT/a
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#
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# TX_RENAME
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#
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mv $ROOT/a $ROOT/b
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#
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# TX_SYMLINK
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#
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touch $ROOT/c
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ln -s $ROOT/c $ROOT/d
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#
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# TX_LINK
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#
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touch $ROOT/e
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ln $ROOT/e $ROOT/f
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#
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# TX_MKDIR
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#
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mkdir $ROOT/dir_to_delete
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#
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# TX_RMDIR
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#
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rmdir $ROOT/dir_to_delete
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#
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# Create a simple validation payload
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#
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PAYLOAD=$(modinfo -F filename zfs)
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cp "$PAYLOAD" "$ROOT/payload"
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CHECKSUM_BEFORE=$(sha256sum -b "$PAYLOAD")
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#
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# TX_WRITE (small file with ordering)
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#
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cp /etc/mtab $ROOT/small_file
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cp /etc/profile $ROOT/small_file
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#
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# TX_CREATE, TX_MKDIR, TX_REMOVE, TX_RMDIR
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#
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cp -R /usr/share/dict $ROOT
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rm -rf $ROOT/dict
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#
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# TX_SETATTR
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#
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touch $ROOT/setattr
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chmod 567 $ROOT/setattr
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chgrp root $ROOT/setattr
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touch -cm -t 201311271200 $ROOT/setattr
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#
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# TX_TRUNCATE (to zero)
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#
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cp /etc/services $ROOT/truncated_file
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> $ROOT/truncated_file
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#
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# Write to an open but removed file
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#
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(sleep 2; date) > $ROOT/date & sleep 1; rm $ROOT/date; wait
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#
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# TX_WRITE (large file)
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#
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dd if=/usr/share/lib/termcap of=$ROOT/large bs=128k oflag=sync 2> /dev/null
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#
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# Write zeroes, which compresss to holes, in the middle of a file
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#
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dd if=$POOLFILE of=$ROOT/holes.1 bs=128k count=8 2> /dev/null
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dd if=/dev/zero of=$ROOT/holes.1 bs=128k count=2 2> /dev/null
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dd if=$POOLFILE of=$ROOT/holes.2 bs=128k count=8 2> /dev/null
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dd if=/dev/zero of=$ROOT/holes.2 bs=128k count=2 oseek=2 2> /dev/null
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dd if=$POOLFILE of=$ROOT/holes.3 bs=128k count=8 2> /dev/null
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dd if=/dev/zero of=$ROOT/holes.3 bs=128k count=2 oseek=2 conv=notrunc 2> /dev/null
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#
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# TX_MKXATTR
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#
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mkdir $ROOT/xattr.dir
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attr -qs fileattr -V HelloWorld $ROOT/xattr.dir
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attr -qs tmpattr -V HelloWorld $ROOT/xattr.dir
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attr -qr tmpattr $ROOT/xattr.dir
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touch $ROOT/xattr.file
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attr -qs fileattr -V HelloWorld $ROOT/xattr.file
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attr -qs tmpattr -V HelloWorld $ROOT/xattr.file
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attr -qr tmpattr $ROOT/xattr.file
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rm $ROOT/xattr.file
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# ====================================================================
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# REPLAY
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# ====================================================================
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KEEP=yes # keep stuff around if we fail, so we can look at it
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cd $ROOT
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find . | cpio -pdmu --quiet $COPY
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echo
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cd /
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zfs unmount $FS || bail "can't unmount $FS"
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echo "$CMD: transactions to replay:"
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echo "----------------------------------------------------"
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zdb -ivv $FS || bail "can't run zdb on $POOL"
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echo "----------------------------------------------------"
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echo
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#
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# Export and reimport the pool to unfreeze it and claim log blocks.
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# It has to be import -f because we can't write a frozen pool's labels!
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#
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zpool export $POOL || bail "can't export $POOL"
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zpool import -f -d $POOLDIR $POOL || bail "can't import $POOL"
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# ====================================================================
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# VERIFY
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# ====================================================================
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echo "$CMD: current block usage:"
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echo "----------------------------------------------------"
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zdb -bcv $POOL || bail "blocks were leaked!"
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echo "----------------------------------------------------"
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echo
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echo "$CMD: Copy of xattrs:"
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echo "----------------------------------------------------"
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attr -l $ROOT/xattr.dir || bail "can't list xattrs"
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echo "----------------------------------------------------"
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echo
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echo "$CMD: Results of workingset diff:"
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echo "----------------------------------------------------"
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diff -r $ROOT $COPY > /dev/null || diff -r $ROOT $COPY || bail "replay diffs!"
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echo "$CHECKSUM_BEFORE" | sha256sum -c || bail "payload checksums don't match"
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echo "payload checksum matched"
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echo "----------------------------------------------------"
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echo
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cleanup
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exit 0
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