| Current File : //bin/wsrep_sst_common |
# Copyright (C) 2012-2015 Codership Oy
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston
# MA 02110-1335 USA.
# This is a common command line parser to be sourced by other SST scripts
set -u
WSREP_SST_OPT_BYPASS=0
WSREP_SST_OPT_BINLOG=""
WSREP_SST_OPT_BINLOG_INDEX=""
WSREP_SST_OPT_DATA=""
WSREP_SST_OPT_AUTH=${WSREP_SST_OPT_AUTH:-}
WSREP_SST_OPT_USER=${WSREP_SST_OPT_USER:-}
WSREP_SST_OPT_PSWD=${WSREP_SST_OPT_PSWD:-}
WSREP_SST_OPT_DEFAULT=""
WSREP_SST_OPT_EXTRA_DEFAULT=""
WSREP_SST_OPT_SUFFIX_DEFAULT=""
WSREP_SST_OPT_SUFFIX_VALUE=""
WSREP_SST_OPT_MYSQLD=""
INNODB_DATA_HOME_DIR_ARG=""
INNODB_LOG_GROUP_HOME_ARG=""
INNODB_UNDO_DIR_ARG=""
LOG_BIN_ARG=""
while [ $# -gt 0 ]; do
case "$1" in
'--address')
readonly WSREP_SST_OPT_ADDR="$2"
#
# Break address string into host:port/path parts
#
case "${WSREP_SST_OPT_ADDR}" in
\[*)
# IPv6
# Remove the starting and ending square brackets, if present:
addr_no_bracket=${WSREP_SST_OPT_ADDR#\[}
readonly WSREP_SST_OPT_HOST_UNESCAPED=${addr_no_bracket%%\]*}
# Square brackets are needed in most cases:
readonly WSREP_SST_OPT_HOST="[${WSREP_SST_OPT_HOST_UNESCAPED}]"
# Some utilities and subsequent code require an address
# without square brackets:
readonly WSREP_SST_OPT_HOST_ESCAPED="\\[${WSREP_SST_OPT_HOST_UNESCAPED}\\]"
readonly WSREP_SST_OPT_HOST_IPv6=1
;;
*)
readonly WSREP_SST_OPT_HOST=${WSREP_SST_OPT_ADDR%%[:/]*}
readonly WSREP_SST_OPT_HOST_UNESCAPED=$WSREP_SST_OPT_HOST
readonly WSREP_SST_OPT_HOST_ESCAPED=$WSREP_SST_OPT_HOST
readonly WSREP_SST_OPT_HOST_IPv6=0
;;
esac
# Let's remove the leading part that contains the host address:
remain=${WSREP_SST_OPT_ADDR#${WSREP_SST_OPT_HOST_ESCAPED}}
# Let's remove the ":" character that separates the port number
# from the hostname:
remain=${remain#:}
# Extract the port number from the address - all characters
# up to "/" (if present):
readonly WSREP_SST_OPT_ADDR_PORT=${remain%%/*}
# If the "/" character is present, then the path is not empty:
if [ "${remain#*/}" != "${remain}" ]; then
# This operation removes everything up to the "/" character,
# effectively removing the port number from the string:
readonly WSREP_SST_OPT_PATH=${remain#*/}
else
readonly WSREP_SST_OPT_PATH=""
fi
# The rest of the string is the same as the path (for now):
remain=${WSREP_SST_OPT_PATH}
# If there is one more "/" in the string, then everything before
# it will be the module name, otherwise the module name is empty:
if [ "${remain%%/*}" != "${remain}" ]; then
# This operation removes the tail after the very first
# occurrence of the "/" character (inclusively):
readonly WSREP_SST_OPT_MODULE=${remain%%/*}
else
readonly WSREP_SST_OPT_MODULE=""
fi
# Remove the module name part from the string, which ends with "/":
remain=${WSREP_SST_OPT_PATH#*/}
# If the rest of the string does not match the original, then there
# was something else besides the module name:
if [ "$remain" != "${WSREP_SST_OPT_PATH}" ]; then
# Extract the part that matches the LSN by removing all
# characters starting from the very first "/":
readonly WSREP_SST_OPT_LSN=${remain%%/*}
# Exctract everything after the first occurrence of
# the "/" character in the string:
remain=${remain#*/}
# If the remainder does not match the original string,
# then there is something else (the version number in
# our case):
if [ "$remain" != "${WSREP_SST_OPT_LSN}" ]; then
# Let's extract the version number by removing the tail
# after the very first occurence of the "/" character
# (inclusively):
readonly WSREP_SST_OPT_SST_VER=${remain%%/*}
else
readonly WSREP_SST_OPT_SST_VER=""
fi
else
readonly WSREP_SST_OPT_LSN=""
readonly WSREP_SST_OPT_SST_VER=""
fi
shift
;;
'--bypass')
WSREP_SST_OPT_BYPASS=1
;;
'--datadir')
readonly WSREP_SST_OPT_DATA="$2"
shift
;;
'--innodb-data-home-dir')
readonly INNODB_DATA_HOME_DIR_ARG="$2"
shift
;;
'--innodb-log-group-home-dir')
readonly INNODB_LOG_GROUP_HOME_ARG="$2"
shift
;;
'--innodb-undo-directory')
readonly INNODB_UNDO_DIR_ARG="$2"
shift
;;
'--log-bin')
readonly LOG_BIN_ARG="$2"
shift
;;
'--defaults-file')
readonly WSREP_SST_OPT_DEFAULT="$1=$2"
shift
;;
'--defaults-extra-file')
readonly WSREP_SST_OPT_EXTRA_DEFAULT="$1=$2"
shift
;;
'--defaults-group-suffix')
readonly WSREP_SST_OPT_SUFFIX_DEFAULT="$1=$2"
readonly WSREP_SST_OPT_SUFFIX_VALUE="$2"
shift
;;
'--host')
readonly WSREP_SST_OPT_HOST="$2"
shift
;;
'--local-port')
readonly WSREP_SST_OPT_LPORT="$2"
shift
;;
'--parent')
readonly WSREP_SST_OPT_PARENT="$2"
shift
;;
'--password')
WSREP_SST_OPT_PSWD="$2"
shift
;;
'--port')
readonly WSREP_SST_OPT_PORT="$2"
shift
;;
'--role')
readonly WSREP_SST_OPT_ROLE="$2"
shift
;;
'--socket')
readonly WSREP_SST_OPT_SOCKET="$2"
shift
;;
'--user')
WSREP_SST_OPT_USER="$2"
shift
;;
'--gtid')
readonly WSREP_SST_OPT_GTID="$2"
shift
;;
'--binlog')
WSREP_SST_OPT_BINLOG="$2"
shift
;;
'--binlog-index')
WSREP_SST_OPT_BINLOG_INDEX="$2"
shift
;;
'--gtid-domain-id')
readonly WSREP_SST_OPT_GTID_DOMAIN_ID="$2"
shift
;;
'--mysqld-args')
original_cmd=""
shift
while [ $# -gt 0 ]; do
option=${1%%=*}
if [[ "$option" != "--defaults-file" && \
"$option" != "--defaults-extra-file" && \
"$option" != "--defaults-group-suffix" && \
"$option" != "--port" && \
"$option" != "--socket" ]]; then
value=${1#*=}
case "$option" in
'--innodb-data-home-dir')
if [ -z "$INNODB_DATA_HOME_DIR_ARG" ]; then
readonly INNODB_DATA_HOME_DIR_ARG="$value"
fi
;;
'--innodb-log-group-home-dir')
if [ -z "$INNODB_LOG_GROUP_HOME_ARG" ]; then
readonly INNODB_LOG_GROUP_HOME_ARG="$value"
fi
;;
'--innodb-undo-directory')
if [ -z "$INNODB_UNDO_DIR_ARG" ]; then
readonly INNODB_UNDO_DIR_ARG="$value"
fi
;;
'--log-bin')
if [ -z "$LOG_BIN_ARG" ]; then
readonly LOG_BIN_ARG="$value"
fi
;;
esac
if [ -z "$original_cmd" ]; then
original_cmd="$1"
else
original_cmd="$original_cmd $1"
fi
fi
shift
done
readonly WSREP_SST_OPT_MYSQLD="$original_cmd"
break
;;
*) # must be command
# usage
# exit 1
;;
esac
shift
done
readonly WSREP_SST_OPT_BYPASS
readonly WSREP_SST_OPT_BINLOG
readonly WSREP_SST_OPT_BINLOG_INDEX
if [ -n "${WSREP_SST_OPT_ADDR_PORT:-}" ]; then
if [ -n "${WSREP_SST_OPT_PORT:-}" ]; then
if [ "$WSREP_SST_OPT_PORT" != "$WSREP_SST_OPT_ADDR_PORT" ]; then
echo "WSREP_SST: [ERROR] port in --port=$WSREP_SST_OPT_PORT differs from port in --address=$WSREP_SST_OPT_ADDR" >&2
exit 2
fi
else
readonly WSREP_SST_OPT_PORT="$WSREP_SST_OPT_ADDR_PORT"
fi
fi
# try to use my_print_defaults, mysql and mysqldump that come with the sources
# (for MTR suite)
SCRIPTS_DIR="$(cd $(dirname "$0"); pwd -P)"
EXTRA_DIR="$SCRIPTS_DIR/../extra"
CLIENT_DIR="$SCRIPTS_DIR/../client"
if [ -x "$CLIENT_DIR/mysql" ]; then
MYSQL_CLIENT="$CLIENT_DIR/mysql"
else
MYSQL_CLIENT=mysql
fi
if [ -x "$CLIENT_DIR/mysqldump" ]; then
MYSQLDUMP="$CLIENT_DIR/mysqldump"
else
MYSQLDUMP=mysqldump
fi
if [ -x "$SCRIPTS_DIR/my_print_defaults" ]; then
MY_PRINT_DEFAULTS="$SCRIPTS_DIR/my_print_defaults"
elif [ -x "$EXTRA_DIR/my_print_defaults" ]; then
MY_PRINT_DEFAULTS="$EXTRA_DIR/my_print_defaults"
else
MY_PRINT_DEFAULTS=my_print_defaults
fi
wsrep_defaults="$WSREP_SST_OPT_DEFAULT"
if [ -n "$wsrep_defaults" ]; then
wsrep_defaults="$wsrep_defaults "
fi
wsrep_defaults="$wsrep_defaults$WSREP_SST_OPT_EXTRA_DEFAULT"
if [ -n "$wsrep_defaults" ]; then
wsrep_defaults="$wsrep_defaults "
fi
readonly WSREP_SST_OPT_CONF="$wsrep_defaults$WSREP_SST_OPT_SUFFIX_DEFAULT"
readonly MY_PRINT_DEFAULTS="$MY_PRINT_DEFAULTS $WSREP_SST_OPT_CONF"
wsrep_auth_not_set()
{
[ -z "$WSREP_SST_OPT_AUTH" -o "$WSREP_SST_OPT_AUTH" = "(null)" ]
}
# State Snapshot Transfer authentication password was displayed in the ps output. Bug fixed #1200727.
if $MY_PRINT_DEFAULTS sst | grep -q "wsrep_sst_auth"; then
if wsrep_auth_not_set; then
WSREP_SST_OPT_AUTH=$($MY_PRINT_DEFAULTS sst | grep -- "--wsrep_sst_auth" | cut -d= -f2)
fi
fi
readonly WSREP_SST_OPT_AUTH
# Splitting AUTH into potential user:password pair
if ! wsrep_auth_not_set
then
WSREP_SST_OPT_USER="${WSREP_SST_OPT_AUTH%%:*}"
WSREP_SST_OPT_PSWD="${WSREP_SST_OPT_AUTH##*:}"
fi
readonly WSREP_SST_OPT_USER
readonly WSREP_SST_OPT_PSWD
if [ -n "${WSREP_SST_OPT_DATA:-}" ]
then
SST_PROGRESS_FILE="$WSREP_SST_OPT_DATA/sst_in_progress"
else
SST_PROGRESS_FILE=""
fi
wsrep_log()
{
# echo everything to stderr so that it gets into common error log
# deliberately made to look different from the rest of the log
local readonly tst="$(date +%Y%m%d\ %H:%M:%S.%N | cut -b -21)"
echo "WSREP_SST: $* ($tst)" >&2
}
wsrep_log_error()
{
wsrep_log "[ERROR] $*"
}
wsrep_log_warning()
{
wsrep_log "[WARNING] $*"
}
wsrep_log_info()
{
wsrep_log "[INFO] $*"
}
wsrep_cleanup_progress_file()
{
[ -n "${SST_PROGRESS_FILE:-}" ] && rm -f "$SST_PROGRESS_FILE" 2>/dev/null || true
}
wsrep_check_program()
{
local prog=$1
if ! command -v $prog >/dev/null
then
echo "'$prog' not found in PATH"
exit 2 # ENOENT no such file or directory
fi
}
wsrep_check_programs()
{
local ret=0
while [ $# -gt 0 ]
do
wsrep_check_program $1
shift
done
}
#
# user can specify mariabackup specific settings that will be used during sst
# process like encryption, etc.....
# parse such configuration option. (group for xb settings is [sst] in my.cnf
#
# 1st param: group (config file section like sst) or my_print_defaults argument (like --mysqld)
# 2nd param: var : name of the variable in the section, e.g. server-id
# 3rd param: - : default value for the param
parse_cnf()
{
local group=$1
local var=$2
local reval=""
# normalize the variable names specified in cnf file (user can use _ or - for example log-bin or log_bin)
# then search for needed variable
# finally get the variable value (if variables has been specified multiple time use the last value only)
reval=$($MY_PRINT_DEFAULTS "${group}" | awk -v var="${var}" 'BEGIN { OFS=FS="=" } { gsub(/_/,"-",$1); if ( $1=="--"var) lastval=substr($0,length($1)+2) } END { print lastval}')
# use default if we haven't found a value
if [ -z "$reval" ]; then
[ -n "$3" ] && reval=$3
fi
echo $reval
}