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diff --git a/heartbeat/Filesystem b/heartbeat/Filesystem
index 65a9dffb5..fe608ebfd 100755
--- a/heartbeat/Filesystem
+++ b/heartbeat/Filesystem
@@ -1,1068 +1,1128 @@
#!/bin/sh
#
# Support: users@clusterlabs.org
# License: GNU General Public License (GPL)
#
# Filesystem
# Description: Manages a Filesystem on a shared storage medium.
# Original Author: Eric Z. Ayers (eric.ayers@compgen.com)
# Original Release: 25 Oct 2000
#
# usage: ./Filesystem {start|stop|status|monitor|validate-all|meta-data}
#
# OCF parameters are as below:
# OCF_RESKEY_device
# OCF_RESKEY_directory
# OCF_RESKEY_fstype
# OCF_RESKEY_options
# OCF_RESKEY_statusfile_prefix
# OCF_RESKEY_run_fsck
# OCF_RESKEY_fast_stop
# OCF_RESKEY_force_clones
#
#OCF_RESKEY_device : name of block device for the filesystem. e.g. /dev/sda1, /dev/md0
# Or a -U or -L option for mount, or an NFS mount specification
#OCF_RESKEY_directory : the mount point for the filesystem
#OCF_RESKEY_fstype : optional name of the filesystem type. e.g. ext2
#OCF_RESKEY_options : options to be given to the mount command via -o
#OCF_RESKEY_statusfile_prefix : the prefix used for a status file for monitoring
#OCF_RESKEY_run_fsck : fsck execution mode: auto(default)/force/no
#OCF_RESKEY_fast_stop : fast stop: yes(default)/no
#OCF_RESKEY_force_clones : allow running the resource as clone. e.g. local xfs mounts
# for each brick in a glusterfs setup
#
#
# This assumes you want to manage a filesystem on a shared (SCSI) bus,
# on a replicated device (such as DRBD), or a network filesystem (such
# as NFS or Samba).
#
# Do not put this filesystem in /etc/fstab. This script manages all of
# that for you.
#
# NOTE: If 2 or more nodes mount the same file system read-write, and
# that file system is not designed for that specific purpose
# (such as GFS or OCFS2), and is not a network file system like
# NFS or Samba, then the filesystem is going to become
# corrupted.
#
# As a result, you should use this together with the stonith
# option and redundant, independent communications paths.
#
# If you don't do this, don't blame us when you scramble your
# disk.
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
# Defaults
DFLT_STATUSDIR=".Filesystem_status/"
# Parameter defaults
OCF_RESKEY_device_default=""
OCF_RESKEY_directory_default=""
OCF_RESKEY_fstype_default=""
OCF_RESKEY_options_default=""
OCF_RESKEY_statusfile_prefix_default="${DFLT_STATUSDIR}"
OCF_RESKEY_run_fsck_default="auto"
OCF_RESKEY_fast_stop_default="no"
OCF_RESKEY_force_clones_default="false"
OCF_RESKEY_force_unmount_default="true"
+OCF_RESKEY_term_signals_default="TERM"
+OCF_RESKEY_kill_signals_default="KILL"
+OCF_RESKEY_signal_delay_default="1"
# RHEL specific defaults
if is_redhat_based; then
get_os_ver
ocf_version_cmp "$VER" "9.0" 2>/dev/null
case "$?" in
# RHEL >= 9
1|2)
OCF_RESKEY_force_unmount_default="safe";;
# RHEL < 9 and fallback if ocf_version_cmp() fails
*)
OCF_RESKEY_fast_stop_default="yes";;
esac
fi
: ${OCF_RESKEY_device=${OCF_RESKEY_device_default}}
: ${OCF_RESKEY_directory=${OCF_RESKEY_directory_default}}
: ${OCF_RESKEY_fstype=${OCF_RESKEY_fstype_default}}
: ${OCF_RESKEY_options=${OCF_RESKEY_options_default}}
: ${OCF_RESKEY_statusfile_prefix=${OCF_RESKEY_statusfile_prefix_default}}
: ${OCF_RESKEY_run_fsck=${OCF_RESKEY_run_fsck_default}}
if [ -z "${OCF_RESKEY_fast_stop}" ]; then
case "$OCF_RESKEY_fstype" in
gfs2)
OCF_RESKEY_fast_stop="no";;
*)
OCF_RESKEY_fast_stop=${OCF_RESKEY_fast_stop_default};;
esac
fi
: ${OCF_RESKEY_force_clones=${OCF_RESKEY_force_clones_default}}
: ${OCF_RESKEY_force_unmount=${OCF_RESKEY_force_unmount_default}}
+: ${OCF_RESKEY_term_signals=${OCF_RESKEY_term_signals_default}}
+: ${OCF_RESKEY_kill_signals=${OCF_RESKEY_kill_signals_default}}
+: ${OCF_RESKEY_signal_delay=${OCF_RESKEY_signal_delay_default}}
# Variables used by multiple methods
HOSTOS=$(uname)
TAB=' '
# The status file is going to an extra directory, by default
#
prefix=${OCF_RESKEY_statusfile_prefix}
: ${prefix:=$DFLT_STATUSDIR}
suffix="${OCF_RESOURCE_INSTANCE}"
[ "$OCF_RESKEY_CRM_meta_clone" ] &&
suffix="${suffix}_$OCF_RESKEY_CRM_meta_clone"
suffix="${suffix}_$(uname -n)"
STATUSFILE="${OCF_RESKEY_directory}/$prefix$suffix"
#######################################################################
usage() {
cat <<-EOT
usage: $0 {start|stop|status|monitor|validate-all|meta-data}
EOT
}
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="Filesystem" version="1.1">
<version>1.0</version>
<longdesc lang="en">
Resource script for Filesystem. It manages a Filesystem on a
shared storage medium.
The standard monitor operation of depth 0 (also known as probe)
checks if the filesystem is mounted. If you want deeper tests,
set OCF_CHECK_LEVEL to one of the following values:
10: read first 16 blocks of the device (raw read)
This doesn't exercise the filesystem at all, but the device on
which the filesystem lives. This is noop for non-block devices
such as NFS, SMBFS, or bind mounts.
20: test if a status file can be written and read
The status file must be writable by root. This is not always the
case with an NFS mount, as NFS exports usually have the
"root_squash" option set. In such a setup, you must either use
read-only monitoring (depth=10), export with "no_root_squash" on
your NFS server, or grant world write permissions on the
directory where the status file is to be placed.
</longdesc>
<shortdesc lang="en">Manages filesystem mounts</shortdesc>
<parameters>
<parameter name="device" required="1">
<longdesc lang="en">
The name of block device for the filesystem, or -U, -L options for mount, or NFS mount specification.
NOTE: On Linux /dev/disk/by-{uuid,label}/ are preferred to -U/-L.
</longdesc>
<shortdesc lang="en">block device</shortdesc>
<content type="string" default="${OCF_RESKEY_device_default}" />
</parameter>
<parameter name="directory" required="1">
<longdesc lang="en">
The mount point for the filesystem.
</longdesc>
<shortdesc lang="en">mount point</shortdesc>
<content type="string" default="${OCF_RESKEY_directory_default}" />
</parameter>
<parameter name="fstype" required="1">
<longdesc lang="en">
The type of filesystem to be mounted.
</longdesc>
<shortdesc lang="en">filesystem type</shortdesc>
<content type="string" default="${OCF_RESKEY_fstype_default}" />
</parameter>
<parameter name="options">
<longdesc lang="en">
Any extra options to be given as -o options to mount.
For bind mounts, add "bind" here and set fstype to "none".
We will do the right thing for options such as "bind,ro".
</longdesc>
<shortdesc lang="en">options</shortdesc>
<content type="string" default="${OCF_RESKEY_options_default}" />
</parameter>
<parameter name="statusfile_prefix">
<longdesc lang="en">
The prefix to be used for a status file for resource monitoring
with depth 20. If you don't specify this parameter, all status
files will be created in a separate directory.
</longdesc>
<shortdesc lang="en">status file prefix</shortdesc>
<content type="string" default="${OCF_RESKEY_statusfile_prefix_default}" />
</parameter>
<parameter name="run_fsck">
<longdesc lang="en">
Specify how to decide whether to run fsck or not.
"auto" : decide to run fsck depending on the fstype(default)
"force" : always run fsck regardless of the fstype
"no" : do not run fsck ever.
</longdesc>
<shortdesc lang="en">run_fsck</shortdesc>
<content type="string" default="${OCF_RESKEY_run_fsck_default}" />
</parameter>
<parameter name="fast_stop">
<longdesc lang="en">
Normally, we expect no users of the filesystem and the stop
operation to finish quickly. If you cannot control the filesystem
users easily and want to prevent the stop action from failing,
then set this parameter to "no" and add an appropriate timeout
for the stop operation.
This defaults to "no" for GFS2 filesystems.
</longdesc>
<shortdesc lang="en">fast stop</shortdesc>
<content type="boolean" default="${OCF_RESKEY_fast_stop_default}" />
</parameter>
<parameter name="force_clones">
<longdesc lang="en">
The use of a clone setup for local filesystems is forbidden
by default. For special setups like glusterfs, cloning a mount
of a local device with a filesystem like ext4 or xfs independently
on several nodes is a valid use case.
Only set this to "true" if you know what you are doing!
</longdesc>
<shortdesc lang="en">allow running as a clone, regardless of filesystem type</shortdesc>
<content type="boolean" default="${OCF_RESKEY_force_clones_default}" />
</parameter>
<parameter name="force_unmount">
<longdesc lang="en">
This option allows specifying how to handle processes that are
currently accessing the mount directory.
"true" : Kill processes accessing mount point
"safe" : Kill processes accessing mount point using methods that
avoid functions that could potentially block during process
detection
"false" : Do not kill any processes.
The 'safe' option uses shell logic to walk the /procs/ directory
for pids using the mount point while the default option uses the
fuser cli tool. fuser is known to perform operations that can potentially
block if unresponsive nfs mounts are in use on the system.
</longdesc>
<shortdesc lang="en">Kill processes before unmount</shortdesc>
<content type="boolean" default="${OCF_RESKEY_force_unmount_default}" />
</parameter>
+<parameter name="term_signals">
+<longdesc lang="en">
+Signals (names or numbers, whitespace separated) to send processes during graceful termination phase in stop-action.
+</longdesc>
+<shortdesc lang="en">Signals (names or numbers, whitespace separated) to send processes during graceful termination phase in stop-action</shortdesc>
+<content type="boolean" default="${OCF_RESKEY_term_signals_default}" />
+</parameter>
+
+<parameter name="kill_signals">
+<longdesc lang="en">
+Signals (names or numbers, whitespace separated) to send processes during forceful killing phase in stop-action.
+</longdesc>
+<shortdesc lang="en">Signals (names or numbers, whitespace separated) to send processes during forceful killing phase in stop-action</shortdesc>
+<content type="boolean" default="${OCF_RESKEY_kill_signals_default}" />
+</parameter>
+
+<parameter name="signal_delay">
+<longdesc lang="en">
+How many seconds to wait after sending term/kill signals to processes in stop-action.
+</longdesc>
+<shortdesc lang="en">How many seconds to wait after sending term/kill signals to processes in stop-action</shortdesc>
+<content type="boolean" default="${OCF_RESKEY_kill_signal_delay}" />
+</parameter>
+
</parameters>
<actions>
<action name="start" timeout="60s" />
<action name="stop" timeout="60s" />
<action name="monitor" depth="0" timeout="40s" interval="20s" />
<action name="validate-all" timeout="5s" />
<action name="meta-data" timeout="5s" />
</actions>
</resource-agent>
END
}
#
# Make sure the kernel does the right thing with the FS buffers
# This function should be called after unmounting and before mounting
# It may not be necessary in 2.4 and later kernels, but it shouldn't hurt
# anything either...
#
# It's really a bug that you have to do this at all...
#
flushbufs() {
if have_binary $BLOCKDEV ; then
if [ "$blockdevice" = "yes" ] ; then
$BLOCKDEV --flushbufs $1
return $?
fi
fi
return 0
}
# Take advantage of /etc/mtab if present, use portable mount command
# otherwise. Normalize format to "dev mountpoint fstype".
is_bind_mount() {
echo "$options" | grep -w bind >/dev/null 2>&1
}
list_mounts() {
local inpf=""
local mount_list=""
local check_list="x"
if [ -e "/proc/mounts" ] && ! is_bind_mount; then
inpf=/proc/mounts
elif [ -f "/etc/mtab" -a -r "/etc/mtab" ]; then
inpf=/etc/mtab
fi
# Make sure that the mount list has not been changed while reading.
while [ "$mount_list" != "$check_list" ]; do
check_list="$mount_list"
if [ "$inpf" ]; then
# <device> <mountpoint> <fstype> ...
# Spaces in device or mountpoint are octal \040 in $inpf
# Convert literal spaces (field separators) to tabs
mount_list=$(cut -d' ' -f1,2,3 < $inpf | tr ' ' "$TAB")
else
# <device> on <mountpoint> type <fstype> ...
# Use tabs as field separators
match_string='\(.*\) on \(.*\) type \([^[:space:]]\)'
replace_string="\\1${TAB}\\3${TAB}\\5"
mount_list=$($MOUNT | sed "s/$match_string/$replace_string/g")
fi
done
# Convert octal \040 to space characters
printf "$mount_list"
}
determine_blockdevice() {
if [ $blockdevice = "yes" ]; then
return
fi
# Get the current real device name, if possible.
# (specified devname could be -L or -U...)
case "$FSTYPE" in
nfs4|nfs|efs|smbfs|cifs|glusterfs|ceph|tmpfs|overlay|overlayfs|rozofs|zfs|cvfs|none|lustre)
: ;;
*)
match_string="${TAB}${CANONICALIZED_MOUNTPOINT}${TAB}"
DEVICE=$(list_mounts | grep "$match_string" | cut -d"$TAB" -f1)
if [ -b "$DEVICE" ]; then
blockdevice=yes
fi
;;
esac
}
# Lists all filesystems potentially mounted under a given path,
# excluding the path itself.
list_submounts() {
list_mounts | grep "${TAB}${1}/" | cut -d"$TAB" -f2 | sort -r
}
# Lists all bind mounts of a given file system,
# excluding the path itself.
list_bindmounts() {
if is_bind_mount; then
# skip bind mount
# we should not umount the original file system via a bind mount
return
fi
match_string="${TAB}${1}${TAB}"
if list_mounts | grep "$match_string" >/dev/null 2>&1; then
mount_disk=$(list_mounts | grep "$match_string" | cut -d"$TAB" -f1)
else
return
fi
if [ -b "$mount_disk" ]; then
list_mounts | grep "$mount_disk" | grep -v "$match_string" | cut -d"$TAB" -f2 | sort -r
fi
}
# kernels < 2.6.26 can't handle bind remounts
bind_kernel_check() {
echo "$options" | grep -w ro >/dev/null 2>&1 ||
return
uname -r | awk -F. '
$1==2 && $2==6 {
sub("[^0-9].*","",$3);
if ($3<26)
exit(1);
}'
[ $? -ne 0 ] &&
ocf_log warn "kernel $(uname -r) cannot handle read only bind mounts"
}
bind_root_mount_check() {
if [ "$(df -P "$1" | awk 'END{print $6}')" = "/" ]; then
return 1
else
return 0
fi
}
bind_mount() {
if is_bind_mount && [ "$options" != "-o bind" ]
then
bind_kernel_check
bind_opts=$(echo "$options" | sed 's/bind/remount/')
$MOUNT $bind_opts "$MOUNTPOINT"
else
true # make sure to return OK
fi
}
is_option() {
echo "$OCF_RESKEY_options" | grep -w "$1" >/dev/null 2>&1
}
is_fsck_needed() {
case $OCF_RESKEY_run_fsck in
force) true;;
no) false;;
""|auto)
case "$FSTYPE" in
ext4|ext4dev|ext3|reiserfs|reiser4|nss|xfs|jfs|vfat|fat|nfs4|nfs|efs|cifs|smbfs|ocfs2|gfs2|none|lustre|glusterfs|ceph|tmpfs|overlay|overlayfs|rozofs|zfs|cvfs)
false;;
*)
true;;
esac;;
*)
ocf_log warn "Invalid parameter value for fsck: '$OCF_RESKEY_run_fsck'; setting to 'auto'"
OCF_RESKEY_run_fsck="auto"
is_fsck_needed;;
esac
}
fstype_supported()
{
local support="$FSTYPE"
local rc
if [ "X${HOSTOS}" = "XOpenBSD" ];then
# skip checking /proc/filesystems for obsd
return $OCF_SUCCESS
fi
if [ -z "$FSTYPE" -o "$FSTYPE" = none ]; then
: No FSTYPE specified, rely on the system has the right file-system support already
return $OCF_SUCCESS
fi
# support fuse-filesystems (e.g. GlusterFS) and Amazon Elastic File
# System (EFS)
case "$FSTYPE" in
fuse.*|glusterfs|rozofs) support="fuse";;
efs) check_binary "mount.efs"; support="nfs4";;
esac
if [ "$support" != "$FSTYPE" ]; then
ocf_log info "Checking support for $FSTYPE as \"$support\""
fi
grep -w "$support"'$' /proc/filesystems >/dev/null
if [ $? -eq 0 ]; then
# found the fs type
return $OCF_SUCCESS
fi
# if here, we should attempt to load the module and then
# check the if the filesystem support exists again.
$MODPROBE $support >/dev/null
if [ $? -ne 0 ]; then
ocf_exit_reason "Couldn't find filesystem $support in /proc/filesystems and failed to load kernel module"
return $OCF_ERR_INSTALLED
fi
# It is possible for the module to load and not be complete initialized
# before we check /proc/filesystems again. Give this a few trys before
# giving up entirely.
for try in $(seq 5); do
grep -w "$support"'$' /proc/filesystems >/dev/null
if [ $? -eq 0 ] ; then
# yes. found the filesystem after doing the modprobe
return $OCF_SUCCESS
fi
ocf_log debug "Unable to find support for $support in /proc/filesystems after modprobe, trying again"
sleep 1
done
ocf_exit_reason "Couldn't find filesystem $support in /proc/filesystems"
return $OCF_ERR_INSTALLED
}
#
# In the case a fresh filesystem is just created from another
# node on the shared storage, and is not visible yet. Then try
# partprobe to refresh /dev/disk/by-{label,uuid}/* up to date.
#
# DEVICE can be /dev/xxx, -U, -L
#
trigger_udev_rules_if_needed()
{
local refresh_flag="no"
local tmp
local timeout
if [ $blockdevice = "yes" ]; then
tmp="$DEVICE"
if [ "$DEVICE" != "/dev/null" -a ! -b "$DEVICE" ] ; then
refresh_flag="yes"
fi
else
tmp="$(echo $DEVICE|awk '{$1=""; print substr($0,2)}')"
case "$DEVICE" in
-U*|--uuid*)
tmp="/dev/disk/by-uuid/$tmp"
;;
-L*|--label*)
tmp="/dev/disk/by-label/$tmp"
;;
*)
# bind mount?
return ;;
esac
[ ! -b "$tmp" ] && refresh_flag="yes"
fi
[ "$refresh_flag" = "no" ] && return
have_binary partprobe && partprobe >/dev/null 2>&1
timeout=${OCF_RESKEY_CRM_meta_timeout:="60000"}
timeout=$((timeout/1000))
have_binary udevadm && udevadm settle -t $timeout --exit-if-exists=$tmp
return $?
}
#
# START: Start up the filesystem
#
Filesystem_start()
{
# Check if there are any mounts mounted under the mountpoint
match_string="${TAB}${CANONICALIZED_MOUNTPOINT}"
if list_mounts | grep -E "$match_string/\w+" >/dev/null 2>&1; then
ocf_log err "There is one or more mounts mounted under $MOUNTPOINT."
return $OCF_ERR_CONFIGURED
fi
# See if the device is already mounted.
if Filesystem_status >/dev/null 2>&1 ; then
ocf_log info "Filesystem $MOUNTPOINT is already mounted."
return $OCF_SUCCESS
fi
fstype_supported || exit $OCF_ERR_INSTALLED
# Check the filesystem & auto repair.
# NOTE: Some filesystem types don't need this step... Please modify
# accordingly
trigger_udev_rules_if_needed
if [ $blockdevice = "yes" ]; then
if [ "$DEVICE" != "/dev/null" -a ! -b "$DEVICE" ] ; then
ocf_exit_reason "Couldn't find device [$DEVICE]. Expected /dev/??? to exist"
exit $OCF_ERR_INSTALLED
fi
if is_fsck_needed; then
ocf_log info "Starting filesystem check on $DEVICE"
if [ -z "$FSTYPE" ]; then
$FSCK -p "$DEVICE"
else
$FSCK -t "$FSTYPE" -p "$DEVICE"
fi
# NOTE: if any errors at all are detected, it returns non-zero
# if the error is >= 4 then there is a big problem
if [ $? -ge 4 ]; then
ocf_exit_reason "Couldn't successfully fsck filesystem for $DEVICE"
return $OCF_ERR_GENERIC
fi
fi
fi
[ -d "$MOUNTPOINT" ] ||
ocf_run mkdir -p "$MOUNTPOINT"
if [ ! -d "$MOUNTPOINT" ] ; then
ocf_exit_reason "Couldn't find directory [$MOUNTPOINT] to use as a mount point"
exit $OCF_ERR_INSTALLED
fi
flushbufs "$DEVICE"
# Mount the filesystem.
case "$FSTYPE" in
none) $MOUNT $options $device_opt "$DEVICE" "$MOUNTPOINT" &&
bind_mount
;;
"") $MOUNT $options $device_opt "$DEVICE" "$MOUNTPOINT" ;;
*) $MOUNT -t "$FSTYPE" $options $device_opt "$DEVICE" "$MOUNTPOINT" ;;
esac
if [ $? -ne 0 ]; then
ocf_exit_reason "Couldn't mount device [$DEVICE] as $MOUNTPOINT"
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
# end of Filesystem_start
get_pids()
{
local dir=$1
local procs
local mmap_procs
if is_bind_mount && ocf_is_true "$FORCE_UNMOUNT" && ! bind_root_mount_check "$DEVICE"; then
ocf_log debug "Change force_umount from '$FORCE_UNMOUNT' to 'safe'"
FORCE_UNMOUNT=safe
fi
if ocf_is_true "$FORCE_UNMOUNT"; then
if [ "X${HOSTOS}" = "XOpenBSD" ];then
fstat | grep $dir | awk '{print $3}'
else
$FUSER -m $dir 2>/dev/null
fi
elif [ "$FORCE_UNMOUNT" = "safe" ]; then
procs=$(find /proc/[0-9]*/ -type l -lname "${dir}/*" -or -lname "${dir}" 2>/dev/null | awk -F/ '{print $3}')
mmap_procs=$(grep " ${dir}/" /proc/[0-9]*/maps | awk -F/ '{print $3}')
printf "${procs}\n${mmap_procs}" | sort | uniq
fi
}
signal_processes() {
local dir=$1
local sig=$2
local pids pid
# fuser returns a non-zero return code if none of the
# specified files is accessed or in case of a fatal
# error.
pids=$(get_pids "$dir")
if [ -z "$pids" ]; then
ocf_log info "No processes on $dir were signalled. force_unmount is set to '$FORCE_UNMOUNT'"
return
fi
for pid in $pids; do
ocf_log info "sending signal $sig to: $(ps -f $pid | tail -1)"
kill -s $sig $pid
done
}
try_umount() {
local SUB="$1"
$UMOUNT $umount_force "$SUB"
list_mounts | grep "${TAB}${SUB}${TAB}" >/dev/null 2>&1 || {
ocf_log info "unmounted $SUB successfully"
return $OCF_SUCCESS
}
return $OCF_ERR_GENERIC
}
-fs_stop() {
- local SUB="$1" timeout=$2 sig cnt
- for sig in TERM KILL; do
- cnt=$((timeout/2)) # try half time with TERM
- while [ $cnt -gt 0 ]; do
- try_umount "$SUB" &&
- return $OCF_SUCCESS
- ocf_exit_reason "Couldn't unmount $SUB; trying cleanup with $sig"
+timeout_child() {
+ local pid="$1" timeout="$2" killer ret
+
+ # start job in the background that will KILL the given process after timeout expires
+ sleep $timeout && kill -s KILL $pid &
+ killer=$!
+
+ # block until the child process either exits on its own or gets killed by the above killer pipeline
+ wait $pid
+ ret=$?
+
+ # ret would be 127 + child exit code if the timeout expired
+ [ $ret -lt 128 ] && kill -s KILL $killer
+ return $ret
+}
+fs_stop_loop() {
+ local SUB="$1" signals="$2" sig
+ while true; do
+ for sig in $signals; do
signal_processes "$SUB" $sig
- cnt=$((cnt-1))
- sleep 1
done
+ sleep $OCF_RESKEY_signal_delay
+ try_umount "$SUB" && return $OCF_SUCCESS
done
+}
+fs_stop() {
+ local SUB="$1" timeout=$2 grace_time ret
+ grace_time=$((timeout/2))
+
+ # try gracefully terminating processes for up to half of the configured timeout
+ fs_stop_loop "$SUB" "$OCF_RESKEY_term_signals" &
+ timeout_child $! $grace_time
+ ret=$?
+ [ $ret -eq $OCF_SUCCESS ] && return $ret
+
+ # try killing them for the rest of the timeout
+ fs_stop_loop "$SUB" "$OCF_RESKEY_kill_signals" &
+ timeout_child $! $grace_time
+ ret=$?
+ [ $ret -eq $OCF_SUCCESS ] && return $ret
+
+ # timeout expired
+ ocf_exit_reason "Couldn't unmount $SUB within given timeout"
return $OCF_ERR_GENERIC
}
#
# STOP: Unmount the filesystem
#
Filesystem_stop()
{
# See if the device is currently mounted
Filesystem_status >/dev/null 2>&1
if [ $? -eq $OCF_NOT_RUNNING ]; then
# Already unmounted, wonderful.
rc=$OCF_SUCCESS
else
# Wipe the status file, but continue with a warning if
# removal fails -- the file system might be read only
if [ $OCF_CHECK_LEVEL -eq 20 ]; then
rm -f "${STATUSFILE}"
if [ $? -ne 0 ]; then
ocf_log warn "Failed to remove status file ${STATUSFILE}."
fi
fi
# Determine the real blockdevice this is mounted on (if
# possible) prior to unmounting.
determine_blockdevice
# For networked filesystems, there's merit in trying -f:
case "$FSTYPE" in
nfs4|nfs|efs|cifs|smbfs) umount_force="-f" ;;
esac
# Umount all sub-filesystems mounted under $MOUNTPOINT/ too.
local timeout
while read SUB; do
ocf_log info "Trying to unmount $SUB"
if ocf_is_true "$FAST_STOP"; then
timeout=6
else
timeout=${OCF_RESKEY_CRM_meta_timeout:="20000"}
timeout=$((timeout/1000))
fi
fs_stop "$SUB" $timeout
rc=$?
if [ $rc -ne $OCF_SUCCESS ]; then
ocf_exit_reason "Couldn't unmount $SUB, giving up!"
fi
done <<-EOF
$(list_submounts "$CANONICALIZED_MOUNTPOINT"; \
list_bindmounts "$CANONICALIZED_MOUNTPOINT"; \
echo $CANONICALIZED_MOUNTPOINT)
EOF
fi
flushbufs "$DEVICE"
return $rc
}
# end of Filesystem_stop
#
# STATUS: is the filesystem mounted or not?
#
Filesystem_status()
{
match_string="${TAB}${CANONICALIZED_MOUNTPOINT}${TAB}"
if list_mounts | grep "$match_string" >/dev/null 2>&1; then
rc=$OCF_SUCCESS
msg="$MOUNTPOINT is mounted (running)"
else
rc=$OCF_NOT_RUNNING
msg="$MOUNTPOINT is unmounted (stopped)"
fi
# Special case "monitor" to check whether the UUID cached and
# on-disk still match?
case "$OP" in
status) ocf_log info "$msg";;
esac
return $rc
}
# end of Filesystem_status
# Note: the read/write tests below will stall in case the
# underlying block device (or in the case of a NAS mount, the
# NAS server) has gone away. In that case, if I/O does not
# return to normal in time, the operation hits its timeout
# and it is up to the CRM to initiate appropriate recovery
# actions (such as fencing the node).
#
# MONITOR 10: read the device
#
Filesystem_monitor_10()
{
if [ "$blockdevice" = "no" ] ; then
ocf_log warn "$DEVICE is not a block device, monitor 10 is noop"
return $OCF_SUCCESS
fi
dd_opts="iflag=direct bs=4k count=1"
err_output=$(dd if="$DEVICE" $dd_opts 2>&1 >/dev/null)
if [ $? -ne 0 ]; then
ocf_exit_reason "Failed to read device $DEVICE"
ocf_log err "dd said: $err_output"
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
#
# MONITOR 20: write and read a status file
#
Filesystem_monitor_20()
{
if [ "$blockdevice" = "no" ] ; then
# O_DIRECT not supported on cifs/smbfs
dd_opts="oflag=sync bs=4k conv=fsync,sync"
else
# Writing to the device in O_DIRECT mode is imperative
# to bypass caches.
dd_opts="oflag=direct,sync bs=4k conv=fsync,sync"
fi
status_dir=$(dirname "$STATUSFILE")
[ -d "$status_dir" ] || mkdir -p "$status_dir"
err_output=$(echo "${OCF_RESOURCE_INSTANCE}" | dd of="${STATUSFILE}" $dd_opts 2>&1)
if [ $? -ne 0 ]; then
ocf_exit_reason "Failed to write status file ${STATUSFILE}"
ocf_log err "dd said: $err_output"
return $OCF_ERR_GENERIC
fi
test -f "${STATUSFILE}"
if [ $? -ne 0 ]; then
ocf_exit_reason "Cannot stat the status file ${STATUSFILE}"
return $OCF_ERR_GENERIC
fi
cat "${STATUSFILE}" > /dev/null
if [ $? -ne 0 ]; then
ocf_exit_reason "Cannot read the status file ${STATUSFILE}"
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
Filesystem_monitor()
{
Filesystem_status
rc=$?
if [ $rc -ne $OCF_SUCCESS ]; then
return $rc
fi
if [ $rc -eq $OCF_SUCCESS -a $OCF_CHECK_LEVEL -gt 0 ]; then
case "$OCF_CHECK_LEVEL" in
10) Filesystem_monitor_10; rc=$?;;
20) Filesystem_monitor_20; rc=$?;;
*)
ocf_exit_reason "unsupported monitor level $OCF_CHECK_LEVEL"
rc=$OCF_ERR_CONFIGURED
;;
esac
fi
return $rc
}
# end of Filesystem_monitor
#
# VALIDATE_ALL: Are the instance parameters valid?
# FIXME!! The only part that's useful is the return code.
# This code always returns $OCF_SUCCESS (!)
# FIXME!! Needs some tuning to match fstype_supported() (e.g., for
# fuse). Can we just call fstype_supported() with a flag like
# "no_modprobe" instead?
#
Filesystem_validate_all()
{
# Check if the $FSTYPE is workable
# NOTE: Without inserting the $FSTYPE module, this step may be imprecise
# TODO: This is Linux specific crap.
if [ ! -z "$FSTYPE" -a "$FSTYPE" != none ]; then
cut -f2 /proc/filesystems | grep "^${FSTYPE}$" >/dev/null 2>&1
if [ $? -ne 0 ]; then
modpath=/lib/modules/$(uname -r)
moddep=$modpath/modules.dep
# Do we have $FSTYPE in modules.dep?
cut -d' ' -f1 $moddep \
| grep "^${modpath}.*${FSTYPE}\.k\?o:$" >/dev/null 2>&1
if [ $? -ne 0 ]; then
ocf_log info "It seems we do not have $FSTYPE support"
fi
fi
fi
# If we are supposed to do monitoring with status files, then
# we need a utility to write in O_DIRECT mode.
if [ $OCF_CHECK_LEVEL -gt 0 ]; then
check_binary dd
# Note: really old coreutils version do not support
# the "oflag" option for dd. We don't check for that
# here. In case dd does not support oflag, monitor is
# bound to fail, with dd spewing an error message to
# the logs. On such systems, we must do without status
# file monitoring.
fi
#TODO: How to check the $options ?
return $OCF_SUCCESS
}
#
# set the blockdevice variable to "no" or "yes"
#
set_blockdevice_var() {
blockdevice=no
# these are definitely not block devices
case "$FSTYPE" in
nfs4|nfs|efs|smbfs|cifs|none|glusterfs|ceph|tmpfs|overlay|overlayfs|rozofs|zfs|cvfs|lustre) return;;
esac
if $(is_option "loop"); then
return
fi
case "$DEVICE" in
--uuid=*|--uuid\ *|--label=*|--label\ *)
device_opt=$(echo $DEVICE | sed "s/\([[:blank:]]\|=\).*//")
DEVICE=$(echo $DEVICE | sed -E "s/$device_opt([[:blank:]]*|=)//")
;;
-U*|-L*) # short versions of --uuid/--label
device_opt=$(echo $DEVICE | cut -c1-2)
DEVICE=$(echo $DEVICE | sed "s/$device_opt[[:blank:]]*//")
;;
/dev/null) # Special case for BSC
blockdevice=yes
;;
*)
if [ ! -b "$DEVICE" -a ! -d "$DEVICE" -a "X$OP" != Xstart ] ; then
ocf_log warn "Couldn't find device [$DEVICE]. Expected /dev/??? to exist"
fi
if [ ! -d "$DEVICE" ]; then
blockdevice=yes
fi
;;
esac
}
# Check the arguments passed to this script
if [ $# -ne 1 ]; then
usage
exit $OCF_ERR_ARGS
fi
# Check the OCF_RESKEY_ environment variables...
FORCE_UNMOUNT="yes"
if [ -n "${OCF_RESKEY_force_unmount}" ]; then
FORCE_UNMOUNT=$OCF_RESKEY_force_unmount
fi
DEVICE="$OCF_RESKEY_device"
FSTYPE=$OCF_RESKEY_fstype
if [ ! -z "$OCF_RESKEY_options" ]; then
options="-o $OCF_RESKEY_options"
fi
FAST_STOP=${OCF_RESKEY_fast_stop:="yes"}
OP=$1
# These operations do not require instance parameters
case $OP in
meta-data) meta_data
exit $OCF_SUCCESS
;;
usage) usage
exit $OCF_SUCCESS
;;
esac
if [ x = x"$DEVICE" ]; then
ocf_exit_reason "Please set OCF_RESKEY_device to the device to be managed"
exit $OCF_ERR_CONFIGURED
fi
set_blockdevice_var
# Normalize instance parameters:
# It is possible that OCF_RESKEY_directory has one or even multiple trailing "/".
# But the output of `mount` and /proc/mounts do not.
if [ -z "$OCF_RESKEY_directory" ]; then
if [ X$OP = "Xstart" -o $blockdevice = "no" ]; then
ocf_exit_reason "Please specify the directory"
exit $OCF_ERR_CONFIGURED
fi
else
MOUNTPOINT="$(echo "$OCF_RESKEY_directory" | sed 's/\/*$//')"
: ${MOUNTPOINT:=/}
if [ -e "$MOUNTPOINT" ] ; then
CANONICALIZED_MOUNTPOINT="$(readlink -f "$MOUNTPOINT")"
if [ $? -ne 0 ]; then
ocf_exit_reason "Could not canonicalize $MOUNTPOINT because readlink failed"
exit $OCF_ERR_GENERIC
fi
else
CANONICALIZED_MOUNTPOINT="$MOUNTPOINT"
fi
# At this stage, $MOUNTPOINT does not contain trailing "/" unless it is "/"
# TODO: / mounted via Filesystem sounds dangerous. On stop, we'll
# kill the whole system. Is that a good idea?
fi
# Check to make sure the utilites are found
if [ "X${HOSTOS}" != "XOpenBSD" ];then
check_binary $MODPROBE
check_binary $FUSER
fi
check_binary $FSCK
check_binary $MOUNT
check_binary $UMOUNT
if [ "$OP" != "monitor" ]; then
ocf_log info "Running $OP for $DEVICE on $MOUNTPOINT"
fi
case $OP in
status) Filesystem_status
exit $?
;;
monitor) Filesystem_monitor
exit $?
;;
validate-all) Filesystem_validate_all
exit $?
;;
stop) Filesystem_stop
exit $?
;;
esac
CLUSTERSAFE=0
is_option "ro" &&
CLUSTERSAFE=2
case "$FSTYPE" in
nfs4|nfs|efs|smbfs|cifs|none|gfs2|glusterfs|ceph|ocfs2|overlay|overlayfs|tmpfs|cvfs|lustre)
CLUSTERSAFE=1 # this is kind of safe too
systemd_drop_in "99-Filesystem-remote" "After" "remote-fs.target"
;;
# add here CLUSTERSAFE=0 for all filesystems which are not
# cluster aware and which, even if when mounted read-only,
# could still modify parts of it such as journal/metadata
ext4|ext4dev|ext3|reiserfs|reiser4|xfs|jfs)
if ocf_is_true "$OCF_RESKEY_force_clones"; then
CLUSTERSAFE=2
systemd_drop_in "99-Filesystem-remote" "After" "remote-fs.target"
else
CLUSTERSAFE=0 # these are not allowed
fi
;;
esac
if ocf_is_clone; then
case $CLUSTERSAFE in
0)
ocf_exit_reason "DANGER! $FSTYPE on $DEVICE is NOT cluster-aware!"
ocf_log err "DO NOT RUN IT AS A CLONE!"
ocf_log err "Politely refusing to proceed to avoid data corruption."
exit $OCF_ERR_CONFIGURED
;;
2)
ocf_log warn "$FSTYPE on $DEVICE is NOT cluster-aware!"
if ocf_is_true "$OCF_RESKEY_force_clones"; then
ocf_log warn "But we'll let it run because we trust _YOU_ verified it's safe to do so."
else
ocf_log warn "But we'll let it run because it is mounted read-only."
ocf_log warn "Please make sure that it's meta data is read-only too!"
fi
;;
esac
fi
case $OP in
start) Filesystem_start
;;
*) usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
exit $?

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