mirror of
git://sourceware.org/git/lvm2.git
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ce78cb58eb
For a quick overview of config when debugging and to quickly check which values are different from defaults and which are not defined in the config and for which defaults are used.
281 lines
7.4 KiB
Bash
Executable File
281 lines
7.4 KiB
Bash
Executable File
#!/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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UDEVADM=udevadm
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UNAME=uname
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TR=tr
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SOCAT=socat # either socat or nc is needed for dumping lvmetad state
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NC=nc
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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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LVMETAD_SOCKET=${LVM_LVMETAD_SOCKET-/var/run/lvm/lvmetad.socket}
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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 " -u gather udev info and context"
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echo " -l gather lvmetad state if running"
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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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udev=0
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while getopts :acd:hmul 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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u) udev=1 ;;
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l) lvmetad=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 | $TR -d ' '`
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if test -n "$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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# cat as workaround to avoid tty ioctl (selinux)
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log "\"$DMSETUP\" ls --tree 2>> \"$log\" | cat >> \"$dir/dmsetup_ls_tree\""
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myecho "Gathering process info..."
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log "$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>> \"$log\""
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myecho "Gathering /etc/lvm info..."
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log "$LS -laR /etc/lvm >> \"$dir/etc_lvm_listing\" 2>> \"$log\""
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log "$CP -RL --preserve=all /etc/lvm \"$dir/lvm\" 2>> \"$log\""
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log "$LVM dumpconfig --type diff --file \"$dir/config_diff\" 2>> \"$log\""
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log "$LVM dumpconfig --type missing --file \"$dir/config_missing\" 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 (( $udev )); then
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myecho "Gathering udev info..."
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udev_dir="$dir/udev"
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log "$MKDIR -p \"$udev_dir\""
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log "$UDEVADM info --version >> \"$udev_dir/version\" 2>> \"$log\""
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log "$UDEVADM info --export-db >> \"$udev_dir/db\" 2>> \"$log\""
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log "$CP -a /etc/udev/udev.conf \"$udev_dir/conf\" 2>> \"$log\""
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log "$LS -la /lib/udev >> \"$udev_dir/lib_dir\" 2>> \"$log\""
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log "$CP -RL --preserve=all /etc/udev/rules.d \"$udev_dir/rules_etc\" 2>> \"$log\""
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log "$CP -RL --preserve=all /lib/udev/rules.d \"$udev_dir/rules_lib\" 2>> \"$log\""
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fi
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if (( $lvmetad )); then
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(echo 'request="dump"'; echo '##') | {
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if type -p $SOCAT >& /dev/null; then
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echo "$SOCAT unix-connect:$LVMETAD_SOCKET -" >> "$log"
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$SOCAT "unix-connect:$LVMETAD_SOCKET" - 2>> "$log"
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elif echo | $NC -U "$LVMETAD_SOCKET"; then
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echo "$NC -U $LVMETAD_SOCKET" >> "$log"
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$NC -U "$LVMETAD_SOCKET" 2>> "$log"
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else
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myecho "WARNING: Neither socat nor nc -U seems to be available." 1>&2
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echo "# DUMP FAILED"
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return 1
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fi
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} > "$dir/lvmetad.txt"
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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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