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Diffstat (limited to 'scripts/wsrep_sst_mysqldump.sh')
| -rw-r--r-- | scripts/wsrep_sst_mysqldump.sh | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/scripts/wsrep_sst_mysqldump.sh b/scripts/wsrep_sst_mysqldump.sh new file mode 100644 index 00000000000..d4093dbcaef --- /dev/null +++ b/scripts/wsrep_sst_mysqldump.sh @@ -0,0 +1,131 @@ +#!/bin/bash -e +# Copyright (C) 2009 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 02110-1301 USA. + +# This is a reference script for mysqldump-based state snapshot tansfer + +# This variable is not used in mysqldump sst, so better initialize it +# to avoid shell's "parameter not set" message. +WSREP_SST_OPT_CONF="" + +. $(dirname $0)/wsrep_sst_common + +EINVAL=22 +PATH=$PATH:/usr/sbin:/usr/bin:/sbin:/bin + +local_ip() +{ + [ "$1" = "127.0.0.1" ] && return 0 + [ "$1" = "localhost" ] && return 0 + [ "$1" = "$(hostname -s)" ] && return 0 + [ "$1" = "$(hostname -f)" ] && return 0 + [ "$1" = "$(hostname -d)" ] && return 0 + + # Now if ip program is not found in the path, we can't return 0 since + # it would block any address. Thankfully grep should fail in this case + ip route get "$1" | grep local >/dev/null && return 0 + + return 1 +} + +if test -z "$WSREP_SST_OPT_USER"; then wsrep_log_error "USER cannot be nil"; exit $EINVAL; fi +if test -z "$WSREP_SST_OPT_HOST"; then wsrep_log_error "HOST cannot be nil"; exit $EINVAL; fi +if test -z "$WSREP_SST_OPT_PORT"; then wsrep_log_error "PORT cannot be nil"; exit $EINVAL; fi +if test -z "$WSREP_SST_OPT_LPORT"; then wsrep_log_error "LPORT cannot be nil"; exit $EINVAL; fi +if test -z "$WSREP_SST_OPT_SOCKET";then wsrep_log_error "SOCKET cannot be nil";exit $EINVAL; fi +if test -z "$WSREP_SST_OPT_GTID"; then wsrep_log_error "GTID cannot be nil"; exit $EINVAL; fi + +if local_ip $WSREP_SST_OPT_HOST && \ + [ "$WSREP_SST_OPT_PORT" = "$WSREP_SST_OPT_LPORT" ] +then + wsrep_log_error \ + "destination address '$WSREP_SST_OPT_HOST:$WSREP_SST_OPT_PORT' matches source address." + exit $EINVAL +fi + +# Check client version +if ! mysql --version | grep 'Distrib 10' >/dev/null +then + mysql --version >&2 + wsrep_log_error "this operation requires MySQL client version 10 or newer" + exit $EINVAL +fi + +# For Bug:1293798 +if [ -z "$WSREP_SST_OPT_PSWD" -a -n "$WSREP_SST_OPT_AUTH" ]; then + WSREP_SST_OPT_USER=$(echo $WSREP_SST_OPT_AUTH | cut -d: -f1) + WSREP_SST_OPT_PSWD=$(echo $WSREP_SST_OPT_AUTH | cut -d: -f2) +fi +AUTH="-u$WSREP_SST_OPT_USER" +if test -n "$WSREP_SST_OPT_PSWD"; then AUTH="$AUTH -p$WSREP_SST_OPT_PSWD"; fi + +STOP_WSREP="SET wsrep_on=OFF;" + +# NOTE: we don't use --routines here because we're dumping mysql.proc table +MYSQLDUMP="mysqldump $AUTH -S$WSREP_SST_OPT_SOCKET \ +--add-drop-database --add-drop-table --skip-add-locks --create-options \ +--disable-keys --extended-insert --skip-lock-tables --quick --set-charset \ +--skip-comments --flush-privileges --all-databases" + +# mysqldump cannot restore CSV tables, fix this issue +CSV_TABLES_FIX=" +set sql_mode=''; + +USE mysql; + +SET @cond = (SELECT (SUPPORT = 'YES' or SUPPORT = 'DEFAULT') FROM INFORMATION_SCHEMA.ENGINES WHERE ENGINE = 'csv'); + +SET @stmt = IF (@cond = '1', 'CREATE TABLE IF NOT EXISTS general_log ( event_time timestamp(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6) ON UPDATE CURRENT_TIMESTAMP(6), user_host mediumtext NOT NULL, thread_id bigint(21) unsigned NOT NULL, server_id int(10) unsigned NOT NULL, command_type varchar(64) NOT NULL, argument mediumtext NOT NULL) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT=\"General log\"', 'SET @dummy = 0'); + +PREPARE stmt FROM @stmt; +EXECUTE stmt; +DROP PREPARE stmt; + +SET @stmt = IF (@cond = '1', 'CREATE TABLE IF NOT EXISTS slow_log ( start_time timestamp(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6) ON UPDATE CURRENT_TIMESTAMP(6), user_host mediumtext NOT NULL, query_time time(6) NOT NULL, lock_time time(6) NOT NULL, rows_sent int(11) NOT NULL, rows_examined int(11) NOT NULL, db varchar(512) NOT NULL, last_insert_id int(11) NOT NULL, insert_id int(11) NOT NULL, server_id int(10) unsigned NOT NULL, sql_text mediumtext NOT NULL, thread_id bigint(21) unsigned NOT NULL) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT=\"Slow log\"', 'SET @dummy = 0'); + +PREPARE stmt FROM @stmt; +EXECUTE stmt; +DROP PREPARE stmt;" + +SET_START_POSITION="SET GLOBAL wsrep_start_position='$WSREP_SST_OPT_GTID';" + +MYSQL="mysql $AUTH -h$WSREP_SST_OPT_HOST -P$WSREP_SST_OPT_PORT "\ +"--disable-reconnect --connect_timeout=10" + +# need to disable logging when loading the dump +# reason is that dump contains ALTER TABLE for log tables, and +# this causes an error if logging is enabled +GENERAL_LOG_OPT=`$MYSQL --skip-column-names -e"$STOP_WSREP SELECT @@GENERAL_LOG"` +SLOW_LOG_OPT=`$MYSQL --skip-column-names -e"$STOP_WSREP SELECT @@SLOW_QUERY_LOG"` +$MYSQL -e"$STOP_WSREP SET GLOBAL GENERAL_LOG=OFF" +$MYSQL -e"$STOP_WSREP SET GLOBAL SLOW_QUERY_LOG=OFF" + +# commands to restore log settings +RESTORE_GENERAL_LOG="SET GLOBAL GENERAL_LOG=$GENERAL_LOG_OPT;" +RESTORE_SLOW_QUERY_LOG="SET GLOBAL SLOW_QUERY_LOG=$SLOW_LOG_OPT;" + +if [ $WSREP_SST_OPT_BYPASS -eq 0 ] +then + (echo $STOP_WSREP && $MYSQLDUMP && echo $CSV_TABLES_FIX \ + && echo $RESTORE_GENERAL_LOG && echo $RESTORE_SLOW_QUERY_LOG \ + && echo $SET_START_POSITION \ + || echo "SST failed to complete;") | $MYSQL +else + wsrep_log_info "Bypassing state dump." + echo $SET_START_POSITION | $MYSQL +fi + +# |