re-merging wsrep files from lp:codership-mysql

BUILD/compile-amd64-debug-wsrep

-#! /bin/sh
-
-path=`dirname $0`
-. "$path/SETUP.sh"
-
-extra_flags="$amd64_cflags $debug_cflags -g -O0 $wsrep_cflags"
-c_warnings="$c_warnings $debug_extra_warnings"
-cxx_warnings="$cxx_warnings $debug_extra_warnings"
-extra_configs="$amd64_configs $debug_configs $wsrep_configs --with-wsrep"
-
-. "$path/FINISH.sh"

BUILD/compile-amd64-wsrep

-#! /bin/sh
-
-path=`dirname $0`
-. "$path/SETUP.sh"
-
-extra_flags="$amd64_cflags $fast_cflags -g $wsrep_cflags"
-extra_configs="$amd64_configs $wsrep_configs --with-wsrep"
-
-. "$path/FINISH.sh"

BUILD/compile-pentium-debug-wsrep

-#! /bin/sh -x
-
-path=`dirname $0`
-set -- "$@" --with-debug=full
-. "$path/SETUP.sh"
-
-extra_flags="$pentium_cflags $debug_cflags -g -O0 $wsrep_cflags"
-c_warnings="$c_warnings $debug_extra_warnings"
-cxx_warnings="$cxx_warnings $debug_extra_warnings"
-extra_configs="$pentium_configs $debug_configs $wsrep_configs --with-wsrep"
-
-. "$path/FINISH.sh"

BUILD/compile-pentium-wsrep

-#! /bin/sh
-
-path=`dirname $0`
-. "$path/SETUP.sh"
-
-extra_flags="$pentium_cflags $fast_cflags $wsrep_cflags"
-extra_configs="$pentium_configs $wsrep_configs --with-wsrep"
-
-#strip=yes
-
-. "$path/FINISH.sh"

BUILD/compile-pentium64-wsrep

-#! /bin/sh
-
-# Copyright (C) 2006, 2007 MySQL AB
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Library 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
-# Library General Public License for more details.
-#
-# You should have received a copy of the GNU Library General Public
-# License along with this library; if not, write to the Free
-# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-# MA 02111-1307, USA
-
-path=`dirname $0`
-. "$path/SETUP.sh"
-
-extra_flags="$pentium64_cflags $fast_cflags -g $wsrep_cflags"
-extra_configs="$pentium_configs $static_link $wsrep_configs --with-wsrep"
-CC="$CC --pipe"
-strip=yes
-
-. "$path/FINISH.sh"

cmake/wsrep.cmake

-# Copyright (c) 2011, Codership Oy <info@codership.com>.
-# 
-# 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; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA 
-
-# We need to generate a proper spec file even without --with-wsrep flag,
-# so WSREP_VERSION is produced regardless
-
-# Set the patch version
-SET(WSREP_PATCH_VERSION "7rc1")
-
-# Obtain patch revision number
-SET(WSREP_PATCH_REVNO $ENV{WSREP_REV})
-IF(NOT WSREP_PATCH_REVNO)
-  EXECUTE_PROCESS(
-    COMMAND bzr revno
-    OUTPUT_VARIABLE WSREP_PATCH_REVNO
-    RESULT_VARIABLE RESULT
-  )
-STRING(REGEX REPLACE "(\r?\n)+$" "" WSREP_PATCH_REVNO "${WSREP_PATCH_REVNO}")
-#FILE(WRITE "wsrep_config" "Debug: WSREP_PATCH_REVNO result: ${RESULT}\n")
-ENDIF()
-IF(NOT WSREP_PATCH_REVNO)
-  SET(WSREP_PATCH_REVNO "XXXX")
-ENDIF()
-
-# Obtain wsrep API version
-EXECUTE_PROCESS(
-  COMMAND sh -c "grep WSREP_INTERFACE_VERSION ${MySQL_SOURCE_DIR}/wsrep/wsrep_api.h | cut -d '\"' -f 2"
-  OUTPUT_VARIABLE WSREP_API_VERSION
-  RESULT_VARIABLE RESULT
-)
-#FILE(WRITE "wsrep_config" "Debug: WSREP_API_VERSION result: ${RESULT}\n")
-STRING(REGEX REPLACE "(\r?\n)+$" "" WSREP_API_VERSION "${WSREP_API_VERSION}")
-
-SET(WSREP_VERSION
-    "${WSREP_API_VERSION}.${WSREP_PATCH_VERSION}.r${WSREP_PATCH_REVNO}"
-)
-
-OPTION(WITH_WSREP "WSREP replication API (to use, e.g. Galera Replication library)" ON)
-IF (WITH_WSREP)
-  SET(WSREP_C_FLAGS   "-DWITH_WSREP -DWSREP_PROC_INFO -DMYSQL_MAX_VARIABLE_VALUE_LEN=2048")
-  SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} ${WSREP_C_FLAGS}")
-  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${WSREP_C_FLAGS}")
-  SET(COMPILATION_COMMENT "${COMPILATION_COMMENT}, wsrep_${WSREP_VERSION}")
-  SET(WITH_EMBEDDED_SERVER OFF CACHE INTERNAL "" FORCE)
-ENDIF()
-
-#

scripts/wsrep_sst_common.sh

-# Copyright (C) 2010 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 common command line parser to be sourced by other SST scripts
-
-set -u
-
-WSREP_SST_OPT_BYPASS=0
-
-while [ $# -gt 0 ]; do
-case "$1" in
-    '--address')
-        readonly WSREP_SST_OPT_ADDR="$2"
-        shift
-        ;;
-    '--auth')
-        readonly WSREP_SST_OPT_AUTH="$2"
-        shift
-        ;;
-    '--bypass')
-        WSREP_SST_OPT_BYPASS=1
-        ;;
-    '--datadir')
-        readonly WSREP_SST_OPT_DATA="$2"
-        shift
-        ;;
-    '--defaults-file')
-        readonly WSREP_SST_OPT_CONF="$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')
-        readonly 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')
-        readonly WSREP_SST_OPT_USER="$2"
-        shift
-        ;;
-    '--gtid')
-        readonly WSREP_SST_OPT_GTID="$2"
-        shift
-        ;;
-    *) # must be command
-       # usage
-       # exit 1
-       ;;
-esac
-shift
-done
-readonly WSREP_SST_OPT_BYPASS
-
-wsrep_log()
-{
-    # echo everything to stderr so that it gets into common error log
-    # deliberately made to look different from the rest of the log
-    local readonly tst="$(date +%Y%m%d\ %H:%M:%S.%N | cut -b -21)"
-    echo "WSREP_SST: $* ($tst)" >>/dev/stderr
-}
-
-wsrep_log_error()
-{
-    wsrep_log "[ERROR] $*"
-}
-
-wsrep_log_info()
-{
-    wsrep_log "[INFO] $*"
-}
-

scripts/wsrep_sst_mysqldump.sh

-#!/bin/sh -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
-
-. $(dirname $0)/wsrep_sst_common
-
-EINVAL=22
-
-local_ip()
-{
-    PATH=$PATH:/usr/sbin:/usr/bin:/sbin:/bin
-
-    [ "$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 err "USER cannot be nil";  exit $EINVAL; fi
-if test -z "$WSREP_SST_OPT_HOST";  then err "HOST cannot be nil";  exit $EINVAL; fi
-if test -z "$WSREP_SST_OPT_PORT";  then err "PORT cannot be nil";  exit $EINVAL; fi
-if test -z "$WSREP_SST_OPT_LPORT"; then err "LPORT cannot be nil"; exit $EINVAL; fi
-if test -z "$WSREP_SST_OPT_SOCKET";then err "SOCKET cannot be nil";exit $EINVAL; fi
-if test -z "$WSREP_SST_OPT_GTID";  then err "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 5.5' >/dev/null
-then
-    mysql --version >&2
-    err "this operation requires MySQL client version 5.5.x"
-    exit $EINVAL
-fi
-
-AUTH="-u$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 @str = IF (@@have_csv = 'YES', 'CREATE TABLE IF NOT EXISTS general_log (event_time TIMESTAMP NOT NULL, user_host MEDIUMTEXT NOT NULL, thread_id INTEGER NOT NULL, server_id INTEGER UNSIGNED NOT NULL, command_type VARCHAR(64) NOT NULL,argument MEDIUMTEXT NOT NULL) engine=CSV CHARACTER SET utf8 comment=\"General log\"', 'SET @dummy = 0');
-
-PREPARE stmt FROM @str;
-EXECUTE stmt;
-DROP PREPARE stmt;
-
-SET @str = IF (@@have_csv = 'YES', 'CREATE TABLE IF NOT EXISTS slow_log (start_time TIMESTAMP NOT NULL, user_host MEDIUMTEXT NOT NULL, query_time TIME NOT NULL, lock_time TIME NOT NULL, rows_sent INTEGER NOT NULL, rows_examined INTEGER NOT NULL, db VARCHAR(512) NOT NULL, last_insert_id INTEGER NOT NULL, insert_id INTEGER NOT NULL, server_id INTEGER UNSIGNED NOT NULL, sql_text MEDIUMTEXT NOT NULL) engine=CSV CHARACTER SET utf8 comment=\"Slow log\"', 'SET @dummy = 0');
-
-PREPARE stmt FROM @str;
-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
-
-#

scripts/wsrep_sst_rsync.sh

-#!/bin/bash -ue
-
-# Copyright (C) 2010 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 rsync-based state snapshot tansfer
-
-RSYNC_PID=
-RSYNC_CONF=
-
-. $(dirname $0)/wsrep_sst_common
-
-cleanup_joiner()
-{
-    wsrep_log_info "Joiner cleanup."
-    local PID=$(cat "$RSYNC_PID" 2>/dev/null || echo 0)
-    [ "0" != "$PID" ] && kill $PID && sleep 0.5 && kill -9 $PID >/dev/null 2>&1 \
-    || :
-    rm -rf "$RSYNC_CONF"
-    rm -rf "$MAGIC_FILE"
-    rm -rf "$RSYNC_PID"
-    echo " done." >&2
-}
-
-check_pid()
-{
-    local pid_file=$1
-    [ -r "$pid_file" ] && ps -p $(cat $pid_file) >/dev/null 2>&1
-}
-
-check_pid_and_port()
-{
-    local pid_file=$1
-    local rsync_pid=$(cat $pid_file)
-    local rsync_port=$2
-
-    check_pid $pid_file && \
-    netstat -anpt 2>/dev/null | \
-    grep LISTEN | grep \:$rsync_port | grep $rsync_pid/rsync >/dev/null
-}
-
-MAGIC_FILE="$WSREP_SST_OPT_DATA/rsync_sst_complete"
-rm -rf "$MAGIC_FILE"
-
-if [ "$WSREP_SST_OPT_ROLE" = "donor" ]
-then
-
-    if [ $WSREP_SST_OPT_BYPASS -eq 0 ]
-    then
-
-        FLUSHED="$WSREP_SST_OPT_DATA/tables_flushed"
-        rm -rf "$FLUSHED"
-
-        # Use deltaxfer only for WAN
-        inv=$(basename $0)
-        [ "$inv" = "wsrep_sst_rsync_wan" ] && WHOLE_FILE_OPT="" \
-                                           || WHOLE_FILE_OPT="--whole-file"
-
-        echo "flush tables"
-
-        # wait for tables flushed and state ID written to the file
-        while [ ! -r "$FLUSHED" ] && ! grep -q ':' "$FLUSHED" >/dev/null 2>&1
-        do
-            sleep 0.2
-        done
-
-        STATE="$(cat $FLUSHED)"
-        rm -rf "$FLUSHED"
-
-        sync
-
-        # Old filter - include everything except selected
-        # FILTER=(--exclude '*.err' --exclude '*.pid' --exclude '*.sock' \
-        #         --exclude '*.conf' --exclude core --exclude 'galera.*' \
-        #         --exclude grastate.txt --exclude '*.pem' \
-        #         --exclude '*.[0-9][0-9][0-9][0-9][0-9][0-9]' --exclude '*.index')
-
-        # New filter - exclude everything except dirs (schemas) and innodb files
-        FILTER=(-f '+ /ibdata*' -f '+ /ib_logfile*' -f '+ */' -f '-! */*')
-
-        RC=0
-        rsync --archive --no-times --ignore-times --inplace --delete --quiet \
-              $WHOLE_FILE_OPT "${FILTER[@]}" "$WSREP_SST_OPT_DATA" \
-              rsync://$WSREP_SST_OPT_ADDR || RC=$?
-
-        [ $RC -ne 0 ] && echo "rsync returned code $RC:" >> /dev/stderr
-
-        case $RC in
-        0)  RC=0   # Success
-            ;;
-        12) RC=71  # EPROTO
-            wsrep_log_error \
-                 "rsync server on the other end has incompatible protocol. " \
-                 "Make sure you have the same version of rsync on all nodes."
-            ;;
-        22) RC=12  # ENOMEM
-            ;;
-        *)  RC=255 # unknown error
-            ;;
-        esac
-
-        [ $RC -ne 0 ] && exit $RC
-
-    else # BYPASS
-        wsrep_log_info "Bypassing state dump."
-        STATE="$WSREP_SST_OPT_GTID"
-    fi
-
-    echo "continue" # now server can resume updating data
-
-    echo "$STATE" > "$MAGIC_FILE"
-    rsync -aqc "$MAGIC_FILE" rsync://$WSREP_SST_OPT_ADDR
-
-    echo "done $STATE"
-
-elif [ "$WSREP_SST_OPT_ROLE" = "joiner" ]
-then
-    MYSQLD_PID=$WSREP_SST_OPT_PARENT
-
-    MODULE="rsync_sst"
-
-    RSYNC_PID="$WSREP_SST_OPT_DATA/$MODULE.pid"
-
-    if check_pid $RSYNC_PID
-    then
-        echo "rsync daemon already running."
-        exit 114 # EALREADY
-    fi
-    rm -rf "$RSYNC_PID"
-
-    ADDR=$WSREP_SST_OPT_ADDR
-    RSYNC_PORT=$(echo $ADDR | awk -F ':' '{ print $2 }')
-    if [ -z "$RSYNC_PORT" ]
-    then
-        RSYNC_PORT=4444
-        ADDR="$(echo $ADDR | awk -F ':' '{ print $1 }'):$RSYNC_PORT"
-    fi
-
-    trap "exit 32" HUP PIPE
-    trap "exit 3"  INT TERM
-    trap cleanup_joiner EXIT
-
-    MYUID=$(id -u)
-    MYGID=$(id -g)
-    RSYNC_CONF="$WSREP_SST_OPT_DATA/$MODULE.conf"
-
-cat << EOF > "$RSYNC_CONF"
-pid file = $RSYNC_PID
-use chroot = no
-[$MODULE]
-	path = $WSREP_SST_OPT_DATA
-	read only = no
-	timeout = 300
-	uid = $MYUID
-	gid = $MYGID
-EOF
-
-#    rm -rf "$DATA"/ib_logfile* # we don't want old logs around
-
-    # listen at all interfaces (for firewalled setups)
-    rsync --daemon --port $RSYNC_PORT --config "$RSYNC_CONF"
-
-    until check_pid_and_port $RSYNC_PID $RSYNC_PORT
-    do
-        sleep 0.2
-    done
-
-    echo "ready $ADDR/$MODULE"
-
-    # wait for SST to complete by monitoring magic file
-    while [ ! -r "$MAGIC_FILE" ] && check_pid "$RSYNC_PID" && \
-          ps -p $MYSQLD_PID >/dev/null
-    do
-        sleep 1
-    done
-
-    if ! ps -p $MYSQLD_PID >/dev/null
-    then
-        echo "Parent mysqld process (PID:$MYSQLD_PID) terminated unexpectedly." >&2
-        exit 32
-    fi
-
-    if [ -r "$MAGIC_FILE" ]
-    then
-        cat "$MAGIC_FILE" # output UUID:seqno
-    else
-        # this message should cause joiner to abort
-        echo "rsync process ended without creating '$MAGIC_FILE'"
-    fi
-
-#    cleanup_joiner
-else
-    echo "Unrecognized role: '$WSREP_SST_OPT_ROLE'"
-    exit 22 # EINVAL
-fi
-
-exit 0

scripts/wsrep_sst_xtrabackup.sh

-#!/bin/bash -ue
-
-# Copyright (C) 2011 Percona Inc
-#
-# 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 Percona XtraBackup-based state snapshot tansfer
-
-TMPDIR="/tmp"
-
-. $(dirname $0)/wsrep_sst_common
-
-cleanup_joiner()
-{
-#set -x
-    local PID=$(ps -aef |grep nc| grep $NC_PORT  | awk '{ print $2 }')
-    wsrep_log_info "Killing nc pid $PID"
-    [ -n "$PID" -a "0" != "$PID" ] && kill $PID && (kill $PID && kill -9 $PID) || :
-    rm -f "$MAGIC_FILE"
-#set +x
-}
-
-check_pid()
-{
-    local pid_file="$1"
-    [ -r "$pid_file" ] && ps -p $(cat "$pid_file") >/dev/null 2>&1
-}
-
-kill_xtrabackup()
-{
-#set -x
-    local PID=$(cat $XTRABACKUP_PID)
-    [ -n "$PID" -a "0" != "$PID" ] && kill $PID && (kill $PID && kill -9 $PID) || :
-    rm -f "$XTRABACKUP_PID"
-#set +x
-}
-
-# waits ~10 seconds for nc to open the port and then reports ready
-# (regardless of timeout)
-wait_for_nc()
-{
-    local PORT=$1
-    local ADDR=$2
-    local MODULE=$3
-    for i in $(seq 1 50)
-    do
-        netstat -nptl 2>/dev/null | grep '/nc\s*$' | awk '{ print $4 }' | \
-        sed 's/.*://' | grep \^${PORT}\$ >/dev/null && break
-        sleep 0.2
-    done
-    echo "ready ${ADDR}/${MODULE}"
-}
-
-INNOBACKUPEX_BIN=innobackupex
-INNOBACKUPEX_ARGS=""
-NC_BIN=nc
-
-for TOOL_BIN in INNOBACKUPEX_BIN NC_BIN ; do
-  if ! which ${!TOOL_BIN} > /dev/null 2>&1
-  then 
-     echo "Can't find ${!TOOL_BIN} in the path"
-     exit 22 # EINVAL
-  fi
-done
-
-#ROLE=$1
-#ADDR=$2
-readonly AUTH=(${WSREP_SST_OPT_AUTH//:/ })
-readonly DATA="${WSREP_SST_OPT_DATA}"
-#CONF=$5
-
-INFO_FILE="xtrabackup_galera_info"
-IST_FILE="xtrabackup_ist"
-
-MAGIC_FILE="${DATA}/${INFO_FILE}"
-rm -f "${MAGIC_FILE}"
-
-if [ "$WSREP_SST_OPT_ROLE" = "donor" ]
-then
-
-#    UUID=$6
-#    SEQNO=$7
-#    BYPASS=$8
-
-    NC_PORT=$(echo $WSREP_SST_OPT_ADDR | awk -F '[:/]' '{ print $2 }')
-    REMOTEIP=$(echo $WSREP_SST_OPT_ADDR | awk -F ':' '{ print $1 }')
-
-    if [ $WSREP_SST_OPT_BYPASS -eq 0 ]
-    then
-
-        INNOBACKUPEX_ARGS="--galera-info --tmpdir=${TMPDIR} --stream=tar
-                           --defaults-file=${WSREP_SST_OPT_CONF}
-                           --socket=${WSREP_SST_OPT_SOCKET}"
-
-        if [ "${AUTH[0]}" != "(null)" ]; then
-           INNOBACKUPEX_ARGS="${INNOBACKUPEX_ARGS} --user=${AUTH[0]}"
-        fi
-
-        if [ ${#AUTH[*]} -eq 2 ]; then
-           INNOBACKUPEX_ARGS="${INNOBACKUPEX_ARGS} --password=${AUTH[1]}"
-        fi
-
-        set +e
-
-        # This file and variable seems to have no effect and probably should be deleted
-        XTRABACKUP_PID=$(mktemp --tmpdir wsrep_sst_xtrabackupXXXX.pid)
-
-        ${INNOBACKUPEX_BIN} ${INNOBACKUPEX_ARGS} ${TMPDIR} \
-        2> ${DATA}/innobackup.backup.log | \
-        ${NC_BIN} ${REMOTEIP} ${NC_PORT}
-
-        RC=( "${PIPESTATUS[@]}" )
-        set -e
-
-        if [ ${RC[0]} -ne 0 ]; then
-          wsrep_log_error "${INNOBACKUPEX_BIN} finished with error: ${RC[0]}. " \
-                          "Check ${DATA}/innobackup.backup.log"
-          exit 22
-        elif [  ${RC[1]} -ne 0 ]; then
-          wsrep_log_error "${NC_BIN} finished with error: ${RC[1]}"
-          exit 22
-        fi
-
-        if check_pid "${XTRABACKUP_PID}"
-        then
-            wsrep_log_error "xtrabackup process is still running. Killing... "
-            kill_xtrabackup
-            exit 22
-        fi
-
-        rm -f "${XTRABACKUP_PID}"
-
-    else # BYPASS
-        STATE="${WSREP_SST_OPT_GTID}"
-        echo "continue" # now server can resume updating data
-        echo "${STATE}" > "${MAGIC_FILE}"
-        echo "1" > "${DATA}/${IST_FILE}"
-        (cd ${DATA}; tar cf - ${INFO_FILE} ${IST_FILE}) | ${NC_BIN} ${REMOTEIP} ${NC_PORT}
-        rm -f ${DATA}/${IST_FILE}
-    fi
-
-    echo "done ${WSREP_SST_OPT_GTID}"
-
-elif [ "${WSREP_SST_OPT_ROLE}" = "joiner" ]
-then
-    MODULE="xtrabackup_sst"
-
-    rm -f ${DATA}/xtrabackup_*
-
-    ADDR=${WSREP_SST_OPT_ADDR}
-    NC_PORT=$(echo ${ADDR} | awk -F ':' '{ print $2 }')
-    if [ -z "${NC_PORT}" ]
-    then
-        NC_PORT=4444
-        ADDR="$(echo ${ADDR} | awk -F ':' '{ print $1 }'):${NC_PORT}"
-    fi
-
-    wait_for_nc ${NC_PORT} ${ADDR} ${MODULE} &
-
-#    trap "exit 32" HUP PIPE
-#    trap "exit 3"  INT TERM
-    trap cleanup_joiner HUP PIPE INT TERM
-
-    set +e
-    ${NC_BIN} -dl ${NC_PORT}  | tar xfi  - -C ${DATA}  1>&2
-    RC=( "${PIPESTATUS[@]}" )
-    set -e
-
-    wait %% # join wait_for_nc thread
-
-    if [ ${RC[0]} -ne 0 -o ${RC[1]} -ne 0 ];
-    then
-        wsrep_log_error "Error while getting st data from donor node: " \
-                        "${RC[0]}, ${RC[1]}"
-        exit 32
-    fi
-
-    if [ ! -r "${MAGIC_FILE}" ]
-    then
-        # this message should cause joiner to abort
-        wsrep_log_error "xtrabackup process ended without creating '${MAGIC_FILE}'"
-        exit 32
-    fi
-
-    if ! ps -p ${WSREP_SST_OPT_PARENT} >/dev/null
-    then
-        wsrep_log_error "Parent mysqld process (PID:${WSREP_SST_OPT_PARENT}) terminated unexpectedly." >&2
-        exit 32
-    fi
-
-    if [ ! -r "${IST_FILE}" ]
-    then
-        rm -f ${DATA}/ib_logfile*
-        ${INNOBACKUPEX_BIN} --defaults-file=${WSREP_SST_OPT_CONF} --apply-log \
-        --ibbackup=xtrabackup ${DATA} 1>&2 2> ${DATA}/innobackup.prepare.log
-        if [ $? -ne 0 ];
-        then
-            wsrep_log_error "${INNOBACKUPEX_BIN} finished with errors. Check ${DATA}/innobackup.prepare.log" >&2
-            exit 22
-        fi
-    fi
-
-    cat "${MAGIC_FILE}" # output UUID:seqno
-
-else
-    wsrep_log_error "Unrecognized role: ${WSREP_SST_OPT_ROLE}"
-    exit 22 # EINVAL
-fi
-
-exit 0

sql/wsrep_notify.cc

-/* Copyright 2010 Codership Oy <http://www.codership.com>
-
-   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; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
-
-#include <mysqld.h>
-#include "wsrep_priv.h"
-
-const char* wsrep_notify_cmd="";
-
-static const char* _status_str(wsrep_member_status_t status)
-{
-  switch (status)
-  {
-  case WSREP_MEMBER_UNDEFINED: return "Undefined";
-  case WSREP_MEMBER_JOINER:    return "Joiner";
-  case WSREP_MEMBER_DONOR:     return "Donor";
-  case WSREP_MEMBER_JOINED:    return "Joined";
-  case WSREP_MEMBER_SYNCED:    return "Synced";
-  default:                     return "Error(?)";
-  }
-}
-
-void wsrep_notify_status (wsrep_member_status_t    status,
-                          const wsrep_view_info_t* view)
-{
-  if (!wsrep_notify_cmd || 0 == strlen(wsrep_notify_cmd))
-  {
-    WSREP_INFO("wsrep_notify_cmd is not defined, skipping notification.");
-    return;
-  }
-
-  char  cmd_buf[1 << 16]; // this can be long
-  long  cmd_len = sizeof(cmd_buf) - 1;
-  char* cmd_ptr = cmd_buf;
-  long  cmd_off = 0;
-
-  cmd_off += snprintf (cmd_ptr + cmd_off, cmd_len - cmd_off, "%s",
-                       wsrep_notify_cmd);
-
-  if (status >= WSREP_MEMBER_UNDEFINED && status < WSREP_MEMBER_ERROR)
-  {
-    cmd_off += snprintf (cmd_ptr + cmd_off, cmd_len - cmd_off, " --status %s",
-                         _status_str(status));
-  }
-  else
-  {
-    /* here we preserve provider error codes */
-    cmd_off += snprintf (cmd_ptr + cmd_off, cmd_len - cmd_off,
-                         " --status 'Error(%d)'", status);
-  }
-
-  if (0 != view)
-  {
-    char uuid_str[40];
-
-    wsrep_uuid_print (&view->uuid, uuid_str, sizeof(uuid_str));
-    cmd_off += snprintf (cmd_ptr + cmd_off, cmd_len - cmd_off,
-                         " --uuid %s", uuid_str);
-
-    cmd_off += snprintf (cmd_ptr + cmd_off, cmd_len - cmd_off,
-                         " --primary %s", view->view >= 0 ? "yes" : "no");
-
-    cmd_off += snprintf (cmd_ptr + cmd_off, cmd_len - cmd_off,
-                         " --index %d", view->my_idx);
-
-    cmd_off += snprintf (cmd_ptr + cmd_off, cmd_len - cmd_off, " --members");
-
-    for (int i = 0; i < view->memb_num; i++)
-    {
-      wsrep_uuid_print (&view->members[i].id, uuid_str, sizeof(uuid_str));
-      cmd_off += snprintf (cmd_ptr + cmd_off, cmd_len - cmd_off,
-                           "%c%s/%s/%s", i > 0 ? ',' : ' ',
-                           uuid_str, view->members[i].name,
-                           view->members[i].incoming);
-    }
-  }
-
-  if (cmd_off == cmd_len)
-  {
-    WSREP_ERROR("Notification buffer too short (%ld). Aborting notification.",
-               cmd_len);
-    return;
-  }
-
-  wsp::process p(cmd_ptr, "r");
-
-  p.wait();
-  int err = p.error();
-
-  if (err)
-  {
-    WSREP_ERROR("Notification command failed: %d (%s): \"%s\"",
-                err, strerror(err), cmd_ptr);
-  }
-}
-

sql/wsrep_priv.h

-/* Copyright 2010 Codership Oy <http://www.codership.com>
-
-   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; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-//! @file declares symbols private to wsrep integration layer
-
-#ifndef WSREP_PRIV_H
-#define WSREP_PRIV_H
-
-#include "wsrep_mysqld.h"
-#include "../wsrep/wsrep_api.h"
-
-#include <log.h>
-#include <pthread.h>
-#include <cstdio>
-
-extern void    wsrep_ready_set (my_bool x);
-
-extern ssize_t wsrep_sst_prepare   (void** msg);
-extern int     wsrep_sst_donate_cb (void* app_ctx,
-                                    void* recv_ctx,
-                                    const void* msg, size_t msg_len,
-                                    const wsrep_uuid_t* current_uuid,
-                                    wsrep_seqno_t       current_seqno,
-                                    const char* state, size_t state_len,
-                                    bool bypass);
-
-extern size_t guess_ip (char* buf, size_t buf_len);
-extern size_t guess_address(char* buf, size_t buf_len);
-
-extern wsrep_uuid_t  local_uuid;
-extern wsrep_seqno_t local_seqno;
-
-/*! SST thread signals init thread about sst completion */
-extern void wsrep_sst_complete(const wsrep_uuid_t* uuid, wsrep_seqno_t, bool);
-
-extern void wsrep_notify_status (wsrep_member_status_t new_status,
-                                 const wsrep_view_info_t* view = 0);
-
-namespace wsp {
-class node_status
-{
-public:
-  node_status() : status(WSREP_MEMBER_UNDEFINED) {}
-  void set(wsrep_member_status_t new_status,
-           const wsrep_view_info_t* view = 0)
-  {
-    if (status != new_status || 0 != view)
-    {
-      wsrep_notify_status(new_status, view);
-      status = new_status;
-    }
-  }
-  wsrep_member_status_t get() const { return status; }
-private:
-  wsrep_member_status_t status;
-};
-} /* namespace wsp */
-
-extern wsp::node_status local_status;
-
-namespace wsp {
-/* A small class to run external programs. */
-class process
-{
-private:
-    const char* const str_;
-    FILE*       io_;
-    int         err_;
-    pid_t       pid_;
-
-public:
-/*! @arg type is a pointer to a null-terminated string which  must  contain
-         either  the  letter  'r'  for  reading  or the letter 'w' for writing.
- */
-    process  (const char* cmd, const char* type);
-    ~process ();
-
-    FILE* pipe () { return io_;  }
-    int   error() { return err_; }
-    int   wait ();
-    const char* cmd() { return str_; }
-};
-#ifdef REMOVED
-class lock
-{
-  pthread_mutex_t* const mtx_;
-
-public:
-
-  lock (pthread_mutex_t* mtx) : mtx_(mtx)
-  {
-    int err = pthread_mutex_lock (mtx_);
-
-    if (err)
-    {
-      WSREP_ERROR("Mutex lock failed: %s", strerror(err));
-      abort();
-    }
-  }
-
-  virtual ~lock ()
-  {
-    int err = pthread_mutex_unlock (mtx_);
-
-    if (err)
-    {
-      WSREP_ERROR("Mutex unlock failed: %s", strerror(err));
-      abort();
-    }
-  }
-
-  inline void wait (pthread_cond_t* cond)
-  {
-    pthread_cond_wait (cond, mtx_);
-  }
-
-private:
-
-  lock (const lock&);
-  lock& operator=(const lock&);
-
-};
-
-class monitor
-{
-  int             mutable refcnt;
-  pthread_mutex_t mutable mtx;
-  pthread_cond_t  mutable cond;
-
-public:
-
-  monitor() : refcnt(0)
-  {
-    pthread_mutex_init (&mtx, NULL);
-    pthread_cond_init  (&cond, NULL);
-  }
-
-  ~monitor()
-  {
-    pthread_mutex_destroy (&mtx);
-    pthread_cond_destroy  (&cond);
-  }
-
-  void enter() const
-  {
-    lock l(&mtx);
-
-    while (refcnt)
-    {
-      l.wait(&cond);
-    }
-    refcnt++;
-  }
-
-  void leave() const
-  {
-    lock l(&mtx);
-
-    refcnt--;
-    if (refcnt == 0)
-    {
-      pthread_cond_signal (&cond);
-    }
-  }
-
-private:
-
-  monitor (const monitor&);
-  monitor& operator= (const monitor&);
-};
-
-class critical
-{
-  const monitor& mon;
-
-public:
-
-  critical(const monitor& m) : mon(m) { mon.enter(); }
-
-  ~critical() { mon.leave(); }
-
-private:
-
-  critical (const critical&);
-  critical& operator= (const critical&);
-};
-#endif
-
-class thd
-{
-  class thd_init
-  {
-  public:
-    thd_init()  { my_thread_init(); }
-    ~thd_init() { my_thread_end();  }
-  }
-  init;
-
-  thd (const thd&);
-  thd& operator= (const thd&);
-
-public:
-
-  thd(my_bool wsrep_on);
-  ~thd();
-  THD* const ptr;
-};
-
-class string
-{
-public:
-    string() : string_(0) {}
-    void set(char* str) { if (string_) free (string_); string_ = str; }
-    ~string() { set (0); }
-private:
-    char* string_;
-};
-
-} // namespace wsrep
-#endif /* WSREP_PRIV_H */

support-files/wsrep.cnf.sh

-# This file contains wsrep-related mysqld options. It should be included
-# in the main MySQL configuration file.
-#
-# Options that need to be customized:
-#  - wsrep_provider
-#  - wsrep_cluster_address
-#  - wsrep_sst_auth
-# The rest of defaults should work out of the box.
-
-##
-## mysqld options _MANDATORY_ for correct opration of the cluster
-##
-[mysqld]
-
-# (This must be substituted by wsrep_format)
-binlog_format=ROW
-
-# Currently only InnoDB storage engine is supported
-default-storage-engine=innodb
-
-# to avoid issues with 'bulk mode inserts' using autoinc
-innodb_autoinc_lock_mode=2
-
-# This is a must for paralell applying
-innodb_locks_unsafe_for_binlog=1
-
-# Query Cache is not supported with wsrep
-query_cache_size=0
-query_cache_type=0
-
-# Override bind-address
-# In some systems bind-address defaults to 127.0.0.1, and with mysqldump SST
-# it will have (most likely) disastrous consequences on donor node
-bind-address=0.0.0.0
-
-##
-## WSREP options
-##
-
-# Full path to wsrep provider library or 'none'
-wsrep_provider=none
-
-# Provider specific configuration options
-#wsrep_provider_options=
-
-# Logical cluster name. Should be the same for all nodes.
-wsrep_cluster_name="my_wsrep_cluster"
-
-# Group communication system handle
-#wsrep_cluster_address="dummy://"
-
-# Human-readable node name (non-unique). Hostname by default.
-#wsrep_node_name=
-
-# Base replication <address|hostname>[:port] of the node.
-# The values supplied will be used as defaults for state transfer receiving,
-# listening ports and so on. Default: address of the first network interface.
-#wsrep_node_address=
-
-# Address for incoming client connections. Autodetect by default.
-#wsrep_node_incoming_address=
-
-# How many threads will process writesets from other nodes
-wsrep_slave_threads=1
-
-# DBUG options for wsrep provider
-#wsrep_dbug_option
-
-# Generate fake primary keys for non-PK tables (required for multi-master
-# and parallel applying operation)
-wsrep_certify_nonPK=1
-
-# Maximum number of rows in write set
-wsrep_max_ws_rows=131072
-
-# Maximum size of write set
-wsrep_max_ws_size=1073741824
-
-# to enable debug level logging, set this to 1
-wsrep_debug=0
-
-# convert locking sessions into transactions
-wsrep_convert_LOCK_to_trx=0
-
-# how many times to retry deadlocked autocommits
-wsrep_retry_autocommit=1
-
-# change auto_increment_increment and auto_increment_offset automatically
-wsrep_auto_increment_control=1
-
-# retry autoinc insert, which failed for duplicate key error
-wsrep_drupal_282555_workaround=0
-
-# enable "strictly synchronous" semantics for read operations
-wsrep_causal_reads=0
-
-# Command to call when node status or cluster membership changes.
-# Will be passed all or some of the following options:
-# --status  - new status of this node
-# --uuid    - UUID of the cluster
-# --primary - whether the component is primary or not ("yes"/"no")
-# --members - comma-separated list of members
-# --index   - index of this node in the list
-wsrep_notify_cmd=
-
-##
-## WSREP State Transfer options
-##
-
-# State Snapshot Transfer method
-wsrep_sst_method=mysqldump
-
-# Address which donor should send State Snapshot to.
-# Should be the address of THIS node. DON'T SET IT TO DONOR ADDRESS!!!
-# (SST method dependent. Defaults to the first IP of the first interface)
-#wsrep_sst_receive_address=
-
-# SST authentication string. This will be used to send SST to joining nodes.
-# Depends on SST method. For mysqldump method it is root:<root password>
-wsrep_sst_auth=root:
-
-# Desired SST donor name.
-#wsrep_sst_donor=
-
-# Reject client queries when donating SST (false)
-#wsrep_sst_donor_rejects_queries=0
-
-# Protocol version to use
-# wsrep_protocol_version=

support-files/wsrep_notify.sh

-#!/bin/sh -eu
-
-# This is a simple example of wsrep notification script (wsrep_notify_cmd).
-# It will create 'wsrep' schema and two tables in it: 'membeship' and 'status'
-# and fill them on every membership or node status change.
-#
-# Edit parameters below to specify the address and login to server.
-
-USER=root
-PSWD=rootpass
-HOST=127.0.0.1
-PORT=3306
-
-SCHEMA="wsrep"
-MEMB_TABLE="$SCHEMA.membership"
-STATUS_TABLE="$SCHEMA.status"
-
-BEGIN="
-SET wsrep_on=0;
-DROP SCHEMA IF EXISTS $SCHEMA; CREATE SCHEMA $SCHEMA;
-CREATE TABLE $MEMB_TABLE (
-    idx  INT UNIQUE PRIMARY KEY,
-    uuid CHAR(40) UNIQUE, /* node UUID */
-    name VARCHAR(32),     /* node name */
-    addr VARCHAR(256)     /* node address */
-) ENGINE=MEMORY;
-CREATE TABLE $STATUS_TABLE (
-    size   INT,      /* component size   */
-    idx    INT,      /* this node index  */
-    status CHAR(16), /* this node status */
-    uuid   CHAR(40), /* cluster UUID */
-    prim   BOOLEAN   /* if component is primary */
-) ENGINE=MEMORY;
-BEGIN;
-DELETE FROM $MEMB_TABLE;
-DELETE FROM $STATUS_TABLE;
-"
-END="COMMIT;"
-
-configuration_change()
-{
-    echo "$BEGIN;"
-
-    local idx=0
-
-    for NODE in $(echo $MEMBERS | sed s/,/\ /g)
-    do
-        echo "INSERT INTO $MEMB_TABLE VALUES ( $idx, "
-        # Don't forget to properly quote string values
-        echo "'$NODE'" | sed  s/\\//\',\'/g
-        echo ");"
-        idx=$(( $idx + 1 ))
-    done
-
-    echo "INSERT INTO $STATUS_TABLE VALUES($idx, $INDEX, '$STATUS', '$CLUSTER_UUID', $PRIMARY);"
-
-    echo "$END"
-}
-
-status_update()
-{
-    echo "SET wsrep_on=0; BEGIN; UPDATE $STATUS_TABLE SET status='$STATUS'; COMMIT;"
-}
-
-COM=status_update # not a configuration change by default
-
-while [ $# -gt 0 ]
-do
-    case $1 in
-    --status)
-        STATUS=$2
-        shift
-        ;;
-    --uuid)
-        CLUSTER_UUID=$2
-        shift
-        ;;
-    --primary)
-        [ "$2" = "yes" ] && PRIMARY="1" || PRIMARY="0"
-        COM=configuration_change
-        shift
-        ;;
-    --index)
-        INDEX=$2
-        shift
-        ;;
-    --members)
-        MEMBERS=$2
-        shift
-        ;;
-    esac
-    shift
-done
-
-# Undefined means node is shutting down
-if [ "$STATUS" != "Undefined" ]
-then
-    $COM | mysql -B -u$USER -p$PSWD -h$HOST -P$PORT
-fi
-
-exit 0
-#