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This commit is contained in:
Alasdair Kergon
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235
scripts/lvmdump.sh
Executable file
235
scripts/lvmdump.sh
Executable file
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#!/bin/bash
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# We use some bash-isms (getopts?)
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# Copyright (C) 2007-2010 Red Hat, Inc. All rights reserved.
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#
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# This file is part of LVM2.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# lvm_dump: This script is used to collect pertinent information for
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# the debugging of lvm issues.
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# following external commands are used throughout the script
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# echo and test are internal in bash at least
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MKDIR=mkdir # need -p
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TAR=tar # need czf
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RM=rm # need -rf
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CP=cp
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TAIL=tail # we need -n
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LS=ls # need -la
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PS=ps # need alx
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SED=sed
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DD=dd
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CUT=cut
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DATE=date
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BASENAME=basename
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UNAME=uname
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# user may override lvm and dmsetup location by setting LVM_BINARY
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# and DMSETUP_BINARY respectively
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LVM=${LVM_BINARY-lvm}
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DMSETUP=${DMSETUP_BINARY-dmsetup}
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die() {
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code=$1; shift
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echo "$@" 1>&2
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exit $code
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}
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"$LVM" version >& /dev/null || die 2 "Could not run lvm binary '$LVM'"
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"$DMSETUP" version >& /dev/null || DMSETUP=:
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function usage {
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echo "$0 [options]"
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echo " -h print this message"
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echo " -a advanced collection - warning: if lvm is already hung,"
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echo " then this script may hang as well if -a is used"
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echo " -m gather LVM metadata from the PVs"
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echo " -d <directory> dump into a directory instead of tarball"
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echo " -c if running clvmd, gather cluster data as well"
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echo ""
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exit 1
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}
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advanced=0
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clustered=0
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metadata=0
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while getopts :acd:hm opt; do
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case $opt in
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s) sysreport=1 ;;
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a) advanced=1 ;;
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c) clustered=1 ;;
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d) userdir=$OPTARG ;;
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h) usage ;;
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m) metadata=1 ;;
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:) echo "$0: $OPTARG requires a value:"; usage ;;
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\?) echo "$0: unknown option $OPTARG"; usage ;;
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*) usage ;;
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esac
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done
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NOW=`$DATE -u +%G%m%d%k%M%S | /usr/bin/tr -d ' '`
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if test -n "$userdir"; then
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dir="$userdir"
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else
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dirbase="lvmdump-$HOSTNAME-$NOW"
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dir="$HOME/$dirbase"
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fi
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test -e $dir && die 3 "Fatal: $dir already exists"
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$MKDIR -p $dir || die 4 "Fatal: could not create $dir"
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log="$dir/lvmdump.log"
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myecho() {
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echo "$@"
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echo "$@" >> "$log"
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}
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log() {
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echo "$@" >> "$log"
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eval "$@"
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}
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warnings() {
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if test "$UID" != "0" && test "$EUID" != "0"; then
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myecho "WARNING! Running as non-privileged user, dump is likely incomplete!"
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elif test "$DMSETUP" = ":"; then
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myecho "WARNING! Could not run dmsetup, dump is likely incomplete."
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fi
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}
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warnings
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myecho "Creating dump directory: $dir"
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echo " "
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if (( $advanced )); then
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myecho "Gathering LVM volume info..."
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myecho " vgscan..."
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log "\"$LVM\" vgscan -vvvv > \"$dir/vgscan\" 2>&1"
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myecho " pvscan..."
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log "\"$LVM\" pvscan -v >> \"$dir/pvscan\" 2>> \"$log\""
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myecho " lvs..."
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log "\"$LVM\" lvs -a -o +devices >> \"$dir/lvs\" 2>> \"$log\""
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myecho " pvs..."
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log "\"$LVM\" pvs -a -v > \"$dir/pvs\" 2>> \"$log\""
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myecho " vgs..."
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log "\"$LVM\" vgs -v > \"$dir/vgs\" 2>> \"$log\""
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fi
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if (( $clustered )); then
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myecho "Gathering cluster info..."
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{
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for i in nodes status services; do
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cap_i=$(echo $i|tr a-z A-Z)
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printf "$cap_i:\n----------------------------------\n"
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log "cman_tool $i 2>> \"$log\""
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echo
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done
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echo "LOCKS:"
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echo "----------------------------------"
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if [ -f /proc/cluster/dlm_locks ]
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then
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echo clvmd > /proc/cluster/dlm_locks
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cat /proc/cluster/dlm_locks
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echo
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echo "RESOURCE DIR:"
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cat /proc/cluster/dlm_dir
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echo
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echo "DEBUG LOG:"
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cat /proc/cluster/dlm_debug
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echo
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fi
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if [ -f /debug/dlm/clvmd ]
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then
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cat /debug/dlm/clvmd
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echo
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echo "WAITERS:"
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cat /debug/dlm/clvmd_waiters
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echo
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echo "MASTER:"
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cat /debug/dlm/clvmd_master
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fi
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} > $dir/cluster_info
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fi
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myecho "Gathering LVM & device-mapper version info..."
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echo "LVM VERSION:" > "$dir/versions"
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"$LVM" lvs --version >> "$dir/versions" 2>> "$log"
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echo "DEVICE MAPPER VERSION:" >> "$dir/versions"
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"$DMSETUP" --version >> "$dir/versions" 2>> "$log"
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echo "KERNEL VERSION:" >> "$dir/versions"
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"$UNAME" -a >> "$dir/versions" 2>> "$log"
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echo "DM TARGETS VERSIONS:" >> "$dir/versions"
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"$DMSETUP" targets >> "$dir/versions" 2>> "$log"
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myecho "Gathering dmsetup info..."
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log "\"$DMSETUP\" info -c > \"$dir/dmsetup_info\" 2>> \"$log\""
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log "\"$DMSETUP\" table > \"$dir/dmsetup_table\" 2>> \"$log\""
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log "\"$DMSETUP\" status > \"$dir/dmsetup_status\" 2>> \"$log\""
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myecho "Gathering process info..."
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log "$PS alx > \"$dir/ps_info\" 2>> \"$log\""
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myecho "Gathering console messages..."
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log "$TAIL -n 75 /var/log/messages > \"$dir/messages\" 2>> \"$log\""
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myecho "Gathering /etc/lvm info..."
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log "$CP -a /etc/lvm \"$dir/lvm\" 2>> \"$log\""
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myecho "Gathering /dev listing..."
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log "$LS -laR /dev > \"$dir/dev_listing\" 2>> \"$log\""
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myecho "Gathering /sys/block listing..."
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log "$LS -laR /sys/block > \"$dir/sysblock_listing\" 2>> \"$log\""
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log "$LS -laR /sys/devices/virtual/block >> \"$dir/sysblock_listing\" 2>> \"$log\""
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if (( $metadata )); then
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myecho "Gathering LVM metadata from Physical Volumes..."
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log "$MKDIR -p \"$dir/metadata\""
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pvs="$("$LVM" pvs --separator , --noheadings --units s --nosuffix -o \
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name,pe_start 2>> "$log" | $SED -e 's/^ *//')"
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for line in $pvs
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do
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test -z "$line" && continue
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pv="$(echo $line | $CUT -d, -f1)"
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pe_start="$(echo $line | $CUT -d, -f2)"
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name="$($BASENAME "$pv")"
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myecho " $pv"
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log "$DD if=$pv \"of=$dir/metadata/$name\" bs=512 count=$pe_start 2>> \"$log\""
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done
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fi
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if test -z "$userdir"; then
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lvm_dump="$dirbase.tgz"
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myecho "Creating report tarball in $HOME/$lvm_dump..."
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fi
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warnings
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if test -z "$userdir"; then
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cd "$HOME"
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"$TAR" czf "$lvm_dump" "$dirbase" 2>/dev/null
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"$RM" -rf "$dir"
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fi
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exit 0
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