#!/bin/sh
# script to manage nfs in a clustered environment
-[ -n "$CTDB_BASE" ] || \
+[ -n "$CTDB_BASE" ] ||
CTDB_BASE=$(d=$(dirname "$0") && cd -P "$d" && dirname "$PWD")
. "${CTDB_BASE}/functions"
######################################################################
-service_reconfigure ()
+service_reconfigure()
{
- # Restart lock manager, notify clients
- # shellcheck disable=SC2317
- # Called indirectly via check_thresholds()
- if [ -x "${CTDB_BASE}/statd-callout" ] ; then
- "${CTDB_BASE}/statd-callout" notify &
- fi >/dev/null 2>&1
+ # Restart lock manager, notify clients
+ # shellcheck disable=SC2317
+ # Called indirectly via check_thresholds()
+ if [ -x "${CTDB_BASE}/statd-callout" ]; then
+ "${CTDB_BASE}/statd-callout" notify &
+ fi >/dev/null 2>&1
}
######################################################################
# Use .check files in $CTDB_NFS_CHECKS_DIR.
# Default is "${CTDB_BASE}/nfs-checks.d/"
######################################################
-nfs_check_services ()
+nfs_check_services()
{
- _dir="${CTDB_NFS_CHECKS_DIR:-${CTDB_BASE}/nfs-checks.d}"
+ _dir="${CTDB_NFS_CHECKS_DIR:-${CTDB_BASE}/nfs-checks.d}"
- # Files must end with .check - avoids editor backups, RPM fu, ...
- for _f in "$_dir"/[0-9][0-9].*.check ; do
- [ -r "$_f" ] || continue
+ # Files must end with .check - avoids editor backups, RPM fu, ...
+ for _f in "$_dir"/[0-9][0-9].*.check; do
+ [ -r "$_f" ] || continue
- _t="${_f%.check}"
- _progname="${_t##*/[0-9][0-9].}"
+ _t="${_f%.check}"
+ _progname="${_t##*/[0-9][0-9].}"
- nfs_check_service "$_progname" <"$_f"
- done
+ nfs_check_service "$_progname" <"$_f"
+ done
}
######################################################
# Quoting in values is not preserved
#
######################################################
-nfs_check_service ()
+nfs_check_service()
{
- _progname="$1"
-
- # This sub-shell is created to intentionally limit the scope of
- # variable values read from the .check files.
- # shellcheck disable=SC2030
- (
- # Subshell to restrict scope variables...
-
- # Defaults
- family="tcp"
- version=""
- unhealthy_after=1
- restart_every=0
- service_stop_cmd=""
- service_start_cmd=""
- service_check_cmd=""
- service_debug_cmd=""
-
- # Eval line-by-line. Expands variable references in values.
- # Also allows variable name checking, which seems useful.
- while read _line ; do
- case "$_line" in
- \#*|"") : ;; # Ignore comments, blank lines
-
- family=*|version=*|\
- unhealthy_after=*|restart_every=*|\
- service_stop_cmd=*|service_start_cmd=*|\
- service_check_cmd=*|service_debug_cmd=*)
-
- eval "$_line"
- ;;
- *)
- echo "ERROR: Unknown variable for ${_progname}: ${_line}"
- exit 1
- esac
- done
-
- _ok=false
- if [ -n "$service_check_cmd" ] ; then
- # Using eval means variables can contain semicolon separated commands
- if eval "$service_check_cmd" ; then
- _ok=true
- else
- _err="monitoring service \"${_progname}\" failed"
- fi
- else
- if nfs_check_rpcinfo \
- "$_progname" "$version" "$family" >/dev/null ; then
- _ok=true
- else
- _err="$ctdb_check_rpc_out"
- fi
- fi
+ _progname="$1"
+
+ # This sub-shell is created to intentionally limit the scope of
+ # variable values read from the .check files.
+ # shellcheck disable=SC2030
+ (
+ # Subshell to restrict scope variables...
+
+ # Defaults
+ family="tcp"
+ version=""
+ unhealthy_after=1
+ restart_every=0
+ service_stop_cmd=""
+ service_start_cmd=""
+ service_check_cmd=""
+ service_debug_cmd=""
+
+ # Eval line-by-line. Expands variable references in values.
+ # Also allows variable name checking, which seems useful.
+ while read _line; do
+ case "$_line" in
+ \#* | "") : ;; # Ignore comments, blank lines
+
+ family=* | version=* | \
+ unhealthy_after=* | restart_every=* | \
+ service_stop_cmd=* | service_start_cmd=* | \
+ service_check_cmd=* | service_debug_cmd=*)
+
+ eval "$_line"
+ ;;
+ *)
+ printf 'ERROR: Unknown variable for %s: %s\n' \
+ "$_progname" "$_line"
+ exit 1
+ ;;
+ esac
+ done
+
+ _ok=false
+ if [ -n "$service_check_cmd" ]; then
+ # Using eval means variables can contain
+ # semicolon separated commands
+ if eval "$service_check_cmd"; then
+ _ok=true
+ else
+ _err="monitoring service \"${_progname}\" failed"
+ fi
+ else
+ if nfs_check_rpcinfo \
+ "$_progname" "$version" "$family" \
+ >/dev/null; then
+ _ok=true
+ else
+ _err="$ctdb_check_rpc_out"
+ fi
+ fi
- if $_ok ; then
- if [ $unhealthy_after -ne 1 ] || [ $restart_every -ne 0 ] ; then
- ctdb_counter_init "$_progname"
- fi
- exit 0
- fi
+ if $_ok; then
+ if [ $unhealthy_after -ne 1 ] ||
+ [ $restart_every -ne 0 ]; then
+ ctdb_counter_init "$_progname"
+ fi
+ exit 0
+ fi
- ctdb_counter_incr "$_progname"
- _failcount=$(ctdb_counter_get "$_progname")
+ ctdb_counter_incr "$_progname"
+ _failcount=$(ctdb_counter_get "$_progname")
- _unhealthy=false
- if [ "$unhealthy_after" -gt 0 ] ; then
- if [ "$_failcount" -ge "$unhealthy_after" ] ; then
- _unhealthy=true
- echo "ERROR: $_err"
- fi
- fi
+ _unhealthy=false
+ if [ "$unhealthy_after" -gt 0 ]; then
+ if [ "$_failcount" -ge "$unhealthy_after" ]; then
+ _unhealthy=true
+ echo "ERROR: $_err"
+ fi
+ fi
- if [ "$restart_every" -gt 0 ] ; then
- if [ $((_failcount % restart_every)) -eq 0 ] ; then
- if ! $_unhealthy ; then
- echo "WARNING: $_err"
+ if [ "$restart_every" -gt 0 ]; then
+ if [ $((_failcount % restart_every)) -eq 0 ]; then
+ if ! $_unhealthy; then
+ echo "WARNING: $_err"
+ fi
+ nfs_restart_service
+ fi
fi
- nfs_restart_service
- fi
- fi
- if $_unhealthy ; then
- exit 1
- fi
+ if $_unhealthy; then
+ exit 1
+ fi
- return 0
- ) || exit 1
+ return 0
+ ) || exit 1
}
# Uses: service_stop_cmd, service_start_cmd, service_debug_cmd
# This function is called within the sub-shell that shellcheck thinks
# loses the above variable values.
# shellcheck disable=SC2031
-nfs_restart_service ()
+nfs_restart_service()
{
- if [ -z "$service_stop_cmd" ] || [ -z "$service_start_cmd" ] ; then
- die "ERROR: Can not restart service \"${_progname}\" without corresponding service_start_cmd/service_stop_cmd settings"
- fi
-
- echo "Trying to restart service \"${_progname}\"..."
- # Using eval means variables can contain semicolon separated commands
- eval "$service_stop_cmd"
- if [ -n "$service_debug_cmd" ] ; then
- eval "$service_debug_cmd"
- fi
- background_with_logging eval "$service_start_cmd"
+ if [ -z "$service_stop_cmd" ] || [ -z "$service_start_cmd" ]; then
+ die "ERROR: Can not restart service \"${_progname}\" without corresponding service_start_cmd/service_stop_cmd settings"
+ fi
+
+ echo "Trying to restart service \"${_progname}\"..."
+ # Using eval means variables can contain semicolon separated commands
+ eval "$service_stop_cmd"
+ if [ -n "$service_debug_cmd" ]; then
+ eval "$service_debug_cmd"
+ fi
+ background_with_logging eval "$service_start_cmd"
}
######################################################
# Check an RPC service with rpcinfo
######################################################
-ctdb_check_rpc ()
+ctdb_check_rpc()
{
- _progname="$1" # passed to rpcinfo (looked up in /etc/rpc)
- _version="$2" # optional, not passed if empty/unset
- _family="${3:-tcp}" # optional, default is "tcp"
-
- case "$_family" in
- tcp6|udp6)
- _localhost="${CTDB_RPCINFO_LOCALHOST6:-::1}"
- ;;
+ _progname="$1" # passed to rpcinfo (looked up in /etc/rpc)
+ _version="$2" # optional, not passed if empty/unset
+ _family="${3:-tcp}" # optional, default is "tcp"
+
+ case "$_family" in
+ tcp6 | udp6)
+ _localhost="${CTDB_RPCINFO_LOCALHOST6:-::1}"
+ ;;
*)
- _localhost="${CTDB_RPCINFO_LOCALHOST:-127.0.0.1}"
- esac
-
- # $_version is not quoted because it is optional
- # shellcheck disable=SC2086
- if ! ctdb_check_rpc_out=$(rpcinfo -T "$_family" "$_localhost" \
- "$_progname" $_version 2>&1) ; then
- ctdb_check_rpc_out="$_progname failed RPC check:
+ _localhost="${CTDB_RPCINFO_LOCALHOST:-127.0.0.1}"
+ ;;
+ esac
+
+ # $_version is not quoted because it is optional
+ # shellcheck disable=SC2086
+ if ! ctdb_check_rpc_out=$(rpcinfo -T "$_family" "$_localhost" \
+ "$_progname" $_version 2>&1); then
+ ctdb_check_rpc_out="$_progname failed RPC check:
$ctdb_check_rpc_out"
- echo "$ctdb_check_rpc_out"
- return 1
- fi
+ echo "$ctdb_check_rpc_out"
+ return 1
+ fi
}
-nfs_check_rpcinfo ()
+nfs_check_rpcinfo()
{
- _progname="$1" # passed to rpcinfo (looked up in /etc/rpc)
- _versions="$2" # optional, space separated, not passed if empty/unset
- _families="${3:-tcp}" # optional, space separated, default is "tcp"
-
- for _family in $_families ; do
- if [ -n "$_versions" ] ; then
- for _version in $_versions ; do
- ctdb_check_rpc "$_progname" "$_version" "$_family" || return $?
- done
- else
- ctdb_check_rpc "$_progname" "" "$_family" || return $?
- fi
- done
+ _progname="$1" # passed to rpcinfo (looked up in /etc/rpc)
+ _versions="$2" # optional, space separated, not passed if empty/unset
+ _families="${3:-tcp}" # optional, space separated, default is "tcp"
+
+ for _family in $_families; do
+ if [ -n "$_versions" ]; then
+ for _version in $_versions; do
+ ctdb_check_rpc \
+ "$_progname" "$_version" "$_family" ||
+ return $?
+ done
+ else
+ ctdb_check_rpc "$_progname" "" "$_family" || return $?
+ fi
+ done
}
##################################################################
# use statd-callout to update NFS lock info
##################################################################
-nfs_update_lock_info ()
+nfs_update_lock_info()
{
- if [ -x "$CTDB_BASE/statd-callout" ] ; then
- "$CTDB_BASE/statd-callout" update
- fi
+ if [ -x "$CTDB_BASE/statd-callout" ]; then
+ "$CTDB_BASE/statd-callout" update
+ fi
}
######################################################################
;;
ipreallocated)
- if ctdb_service_needs_reconfigure ; then
+ if ctdb_service_needs_reconfigure; then
ctdb_service_reconfigure
fi
;;
nfs_callout "monitor-pre" || exit $?
# Check that directories for shares actually exist
- if [ "$CTDB_NFS_SKIP_SHARE_CHECK" != "yes" ] ; then
- nfs_callout "monitor-list-shares" | ctdb_check_directories || \
- exit $?
+ if [ "$CTDB_NFS_SKIP_SHARE_CHECK" != "yes" ]; then
+ nfs_callout "monitor-list-shares" | ctdb_check_directories ||
+ exit $?
fi
update_tickles 2049
nfs_check_services
nfs_callout "monitor-post" || exit $?
- ;;
+ ;;
esac
exit 0
projects / thirdparty / samba.git / commitdiff
