mirror of
git://sourceware.org/git/lvm2.git
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366 lines
10 KiB
Bash
366 lines
10 KiB
Bash
#!/bin/bash
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# We use some bash-isms (getopts?)
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# Copyright (C) 2007-2017 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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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GREP="grep"
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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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if test "@ODIRECT@" = yes; then
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DDFLAGS='iflag=direct oflag=direct'
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else
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DDFLAGS=
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fi
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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=${LVM_LVMETAD_SOCKET-/var/run/lvm/lvmetad.socket}
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LVMPOLLD_SOCKET=${LVM_LVMPOLLD_SOCKET-/var/run/lvm/lvmpolld.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 " -c if running clvmd, gather cluster data as well"
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echo " -d <directory> dump into a directory instead of tarball"
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echo " -l gather lvmetad state if running"
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echo " -p gather lvmpolld state if running"
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echo " -m gather LVM metadata from the PVs"
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echo " -s gather system info and context"
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echo " -u gather udev info and context"
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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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sysreport=0
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udev=0
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while getopts :acd:hlpmus opt; do
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case $opt in
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a) advanced=1 ;;
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c) clustered=1 ;;
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d) userdir=$OPTARG ;;
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h) usage ;;
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l) lvmetad=1 ;;
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p) lvmpolld=1 ;;
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m) metadata=1 ;;
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s) sysreport=1 ;;
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u) udev=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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if test -d "$dir" ; then
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(shopt -s nullglob dotglob; test -r "$dir" -a -w "$dir" -a -x "$dir" && cd "$dir" && files=(*) && ((! ${#files[@]}))) || \
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die 5 "Fatal: directory $dir already exists and is not empty or inaccessible"
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else
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test -e "$dir" && die 3 "Fatal: $dir already exists"
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"$MKDIR" -p "$dir" || die 4 "Fatal: could not create $dir"
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fi
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log="$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 "\"$LVM\" lvs -a -H -o +devices,kernel_major,kernel_minor >> \"$dir/lvs\" 2>> \"$log\""
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myecho " pvs..."
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log "\"$LVM\" pvs -a -o +major,minor -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 "$i"|tr "[:lower:]" "[:upper:]")
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echo "$cap_i:"
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echo "----------------------------------"
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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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} >> "$dir/cluster_info"
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fi
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myecho "Gathering LVM & device-mapper version info..."
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{
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echo "LVM VERSION:"
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"$LVM" lvs --version
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echo "DEVICE MAPPER VERSION:"
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"$DMSETUP" --version
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echo "KERNEL VERSION:"
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"$UNAME" -a
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echo "DM TARGETS VERSIONS:"
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"$DMSETUP" targets
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} >> "$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\" $DDFLAGS bs=512 count=$pe_start 2>> \"$log\""
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done
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fi
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if (( sysreport )); then
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myecho "Gathering system info..."
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sysreport_dir="$dir/sysreport"
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log_lines=10000
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SYSTEMCTL=$(which systemctl 2>> "$log")
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JOURNALCTL=$(which journalctl 2>> "$log")
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LSBLK=$(which lsblk 2>> "$log")
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log "$MKDIR -p \"$sysreport_dir\""
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if test -z "LSBLK"; then
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myecho "WARNING: lsblk not found"
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else
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if "$LSBLK" --help | "$GREP" -- --output-all >/dev/null; then
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log "$LSBLK -O >> \"$sysreport_dir/lsblk_O\""
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else
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log "$LSBLK >> \"$sysreport_dir/lsblk\""
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fi
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if "$LSBLK" --help | "$GREP" -- --inverse >/dev/null; then
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log "$LSBLK -s >> \"$sysreport_dir/lsblk_s\""
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fi
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fi
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if test -z "$SYSTEMCTL"; then
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myecho "WARNING: systemctl not found"
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elif test -z "$JOURNALCTL"; then
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myecho "WARNING: journalctl not found"
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else
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log "$JOURNALCTL -b --no-pager -o short-precise > \"$sysreport_dir/journal_content\" 2>> \"$log\""
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log "$SYSTEMCTL status -l --no-pager -n $log_lines -o short-precise dm-event.socket dm-event.service \
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lvm2-monitor.service \
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lvm2-lvmetad.socket lvm2-lvmetad.service \
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lvm2-lvmpolld.socket lvm2-lvmpolld.service \
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lvm2-cluster-activation.service \
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lvm2-clvmd.service \
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lvm2-cmirrord.service \
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lvm2-activation-early.service \
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lvm2-activation.service \
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lvm2-activation-net.service \
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> \"$sysreport_dir/systemd_lvm2_services_status\" 2>> \"$log\""
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log "$SYSTEMCTL list-units -l -a --no-legend --no-pager > \"$sysreport_dir/systemd_unit_list\" 2>> \"$log\""
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for unit in $("$GREP" lvm2-pvscan "$sysreport_dir/systemd_unit_list" | cut -d " " -f 1); do
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log "$SYSTEMCTL status -l --no-pager -n $log_lines -o short-precise $unit >> \"$sysreport_dir/systemd_lvm2_pvscan_service_status\""
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done
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fi
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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 (( lvmpolld )); 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:$LVMPOLLD_SOCKET -" >> "$log"
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"$SOCAT" "unix-connect:$LVMPOLLD_SOCKET" - 2>> "$log"
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elif echo | "$NC" -U "$LVMPOLLD_SOCKET"; then
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echo "$NC -U $LVMPOLLD_SOCKET" >> "$log"
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"$NC" -U "$LVMPOLLD_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/lvmpolld.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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