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#!/usr/bin/env bash
set -ue
# Copyright (C) 2017-2021 MariaDB
# Copyright (C) 2010-2014 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 reference script for rsync-based state snapshot transfer
RSYNC_REAL_PID=0 # rsync process id
STUNNEL_REAL_PID=0 # stunnel process id
OS="$(uname)"
[ "$OS" = 'Darwin' ] && export -n LD_LIBRARY_PATH
. $(dirname "$0")/wsrep_sst_common
wsrep_check_datadir
wsrep_check_programs rsync
cleanup_joiner()
{
local failure=0
wsrep_log_info "Joiner cleanup: rsync PID=$RSYNC_REAL_PID," \
"stunnel PID=$STUNNEL_REAL_PID"
if [ -n "$STUNNEL" ]; then
if cleanup_pid $STUNNEL_REAL_PID "$STUNNEL_PID" "$STUNNEL_CONF"; then
if [ $RSYNC_REAL_PID -eq 0 ]; then
if [ -r "$RSYNC_PID" ]; then
RSYNC_REAL_PID=$(cat "$RSYNC_PID" 2>/dev/null || :)
if [ -z "$RSYNC_REAL_PID" ]; then
RSYNC_REAL_PID=0
fi
fi
fi
else
wsrep_log_warning "stunnel cleanup failed."
failure=1
fi
fi
if [ $failure -eq 0 ]; then
if cleanup_pid $RSYNC_REAL_PID "$RSYNC_PID" "$RSYNC_CONF"; then
[ -f "$MAGIC_FILE" ] && rm -f "$MAGIC_FILE"
else
wsrep_log_warning "rsync cleanup failed."
fi
fi
wsrep_log_info "Joiner cleanup done."
if [ "$WSREP_SST_OPT_ROLE" = 'joiner' ]; then
wsrep_cleanup_progress_file
fi
[ -f "$SST_PID" ] && rm -f "$SST_PID"
}
check_pid_and_port()
{
local pid_file="$1"
local pid=$2
local addr="$3"
local port="$4"
local utils='rsync|stunnel'
if ! check_port $pid "$port" "$utils"; then
local port_info
local busy=0
if [ $lsof_available -ne 0 ]; then
port_info=$(lsof -Pnl -i ":$port" 2>/dev/null | \
grep -F '(LISTEN)')
echo "$port_info" | \
grep -q -E "[[:space:]](\\*|\\[?::\\]?):$port[[:space:]]" && busy=1
else
local filter='([^[:space:]]+[[:space:]]+){4}[^[:space:]]+'
if [ $sockstat_available -ne 0 ]; then
local opts='-p'
if [ "$OS" = 'FreeBSD' ]; then
# sockstat on FreeBSD requires the "-s" option
# to display the connection state:
opts='-sp'
# in addition, sockstat produces an additional column:
filter='([^[:space:]]+[[:space:]]+){5}[^[:space:]]+'
fi
port_info=$(sockstat "$opts" "$port" 2>/dev/null | \
grep -E '[[:space:]]LISTEN' | grep -o -E "$filter")
else
port_info=$(ss -nlpH "( sport = :$port )" 2>/dev/null | \
grep -F 'users:(' | grep -o -E "$filter")
fi
echo "$port_info" | \
grep -q -E "[[:space:]](\\*|\\[?::\\]?):$port\$" && busy=1
fi
if [ $busy -eq 0 ]; then
if ! echo "$port_info" | grep -qw -F "[$addr]:$port" && \
! echo "$port_info" | grep -qw -F -- "$addr:$port"
then
if ! ps -p $pid >/dev/null 2>&1; then
wsrep_log_error \
"rsync or stunnel daemon (PID: $pid)" \
"terminated unexpectedly."
exit 16 # EBUSY
fi
return 1
fi
fi
if ! check_port $pid "$port" "$utils"; then
wsrep_log_error "rsync or stunnel daemon port '$port'" \
"has been taken by another program"
exit 16 # EBUSY
fi
fi
check_pid "$pid_file" && [ $CHECK_PID -eq $pid ]
}
STUNNEL_CONF="$WSREP_SST_OPT_DATA/stunnel.conf"
STUNNEL_PID="$WSREP_SST_OPT_DATA/stunnel.pid"
MAGIC_FILE="$WSREP_SST_OPT_DATA/rsync_sst_complete"
BINLOG_TAR_FILE="$WSREP_SST_OPT_DATA/wsrep_sst_binlog.tar"
BINLOG_N_FILES=1
get_binlog
if [ -n "$WSREP_SST_OPT_BINLOG" ]; then
BINLOG_DIRNAME=$(dirname "$WSREP_SST_OPT_BINLOG")
BINLOG_FILENAME=$(basename "$WSREP_SST_OPT_BINLOG")
fi
# if no command line argument and INNODB_LOG_GROUP_HOME is not set,
# try to get it from my.cnf:
if [ -z "$INNODB_LOG_GROUP_HOME" ]; then
INNODB_LOG_GROUP_HOME=$(parse_cnf '--mysqld' 'innodb-log-group-home-dir')
fi
OLD_PWD="$(pwd)"
WSREP_LOG_DIR="$INNODB_LOG_GROUP_HOME"
cd "$WSREP_SST_OPT_DATA"
if [ -n "$WSREP_LOG_DIR" ]; then
# handle both relative and absolute paths
[ ! -d "$WSREP_LOG_DIR" ] && mkdir -p "$WSREP_LOG_DIR"
cd "$WSREP_LOG_DIR"
fi
WSREP_LOG_DIR=$(pwd -P)
cd "$OLD_PWD"
# if no command line argument and INNODB_DATA_HOME_DIR environment variable
# is not set, try to get it from my.cnf:
if [ -z "$INNODB_DATA_HOME_DIR" ]; then
INNODB_DATA_HOME_DIR=$(parse_cnf '--mysqld' 'innodb-data-home-dir')
fi
cd "$WSREP_SST_OPT_DATA"
if [ -n "$INNODB_DATA_HOME_DIR" ]; then
# handle both relative and absolute paths
[ ! -d "$INNODB_DATA_HOME_DIR" ] && mkdir -p "$INNODB_DATA_HOME_DIR"
cd "$INNODB_DATA_HOME_DIR"
fi
INNODB_DATA_HOME_DIR=$(pwd -P)
cd "$OLD_PWD"
# if no command line argument then try to get it from my.cnf:
if [ -z "$INNODB_UNDO_DIR" ]; then
INNODB_UNDO_DIR=$(parse_cnf '--mysqld' 'innodb-undo-directory')
fi
cd "$WSREP_SST_OPT_DATA"
if [ -n "$INNODB_UNDO_DIR" ]; then
# handle both relative and absolute paths
[ ! -d "$INNODB_UNDO_DIR" ] && mkdir -p "$INNODB_UNDO_DIR"
cd "$INNODB_UNDO_DIR"
fi
INNODB_UNDO_DIR=$(pwd -P)
cd "$OLD_PWD"
encgroups='--mysqld|sst'
check_server_ssl_config
SSTKEY="$tkey"
SSTCERT="$tpem"
SSTCA="$tcert"
SSTCAP="$tcap"
SSLMODE=$(parse_cnf "$encgroups" 'ssl-mode' | tr [:lower:] [:upper:])
if [ -z "$SSLMODE" ]; then
# Implicit verification if CA is set and the SSL mode
# is not specified by user:
if [ -n "$SSTCA$SSTCAP" ]; then
STUNNEL_BIN=$(commandex 'stunnel')
if [ -n "$STUNNEL_BIN" ]; then
SSLMODE='VERIFY_CA'
fi
# Require SSL by default if SSL key and cert are present:
elif [ -n "$SSTKEY" -a -n "$SSTCERT" ]; then
SSLMODE='REQUIRED'
fi
else
case "$SSLMODE" in
'VERIFY_IDENTITY'|'VERIFY_CA'|'REQUIRED'|'DISABLED')
;;
*)
wsrep_log_error "Unrecognized ssl-mode option: '$SSLMODE'"
exit 22 # EINVAL
;;
esac
fi
if [ -n "$SSTKEY" -a -n "$SSTCERT" ]; then
verify_cert_matches_key "$SSTCERT" "$SSTKEY"
fi
CAFILE_OPT=""
CAPATH_OPT=""
if [ -n "$SSTCA$SSTCAP" ]; then
if [ -n "$SSTCA" ]; then
CAFILE_OPT="CAfile = $SSTCA"
fi
if [ -n "$SSTCAP" ]; then
CAPATH_OPT="CApath = $SSTCAP"
fi
if [ -n "$SSTCERT" ]; then
verify_ca_matches_cert "$SSTCERT" "$SSTCA" "$SSTCAP"
fi
fi
VERIFY_OPT=""
CHECK_OPT=""
CHECK_OPT_LOCAL=""
if [ "${SSLMODE#VERIFY}" != "$SSLMODE" ]; then
if [ "$SSLMODE" = 'VERIFY_IDENTITY' ]; then
VERIFY_OPT='verifyPeer = yes'
else
VERIFY_OPT='verifyChain = yes'
fi
if [ -z "$SSTCA$SSTCAP" ]; then
wsrep_log_error "Can't have ssl-mode='$SSLMODE' without CA file or path"
exit 22 # EINVAL
fi
if [ -n "$WSREP_SST_OPT_REMOTE_USER" ]; then
CHECK_OPT="checkHost = $WSREP_SST_OPT_REMOTE_USER"
elif [ "$WSREP_SST_OPT_ROLE" = 'donor' ]; then
# check if the address is an ip-address (v4 or v6):
if echo "$WSREP_SST_OPT_HOST_UNESCAPED" | \
grep -q -E '^([0-9]+(\.[0-9]+){3}|[0-9a-fA-F]*(\:[0-9a-fA-F]*)+)$'
then
CHECK_OPT="checkIP = $WSREP_SST_OPT_HOST_UNESCAPED"
else
CHECK_OPT="checkHost = $WSREP_SST_OPT_HOST"
fi
if is_local_ip "$WSREP_SST_OPT_HOST_UNESCAPED"; then
CHECK_OPT_LOCAL="checkHost = localhost"
fi
fi
fi
STUNNEL=""
if [ -n "$SSLMODE" -a "$SSLMODE" != 'DISABLED' ]; then
if [ -z "${STUNNEL_BIN+x}" ]; then
STUNNEL_BIN=$(commandex 'stunnel')
fi
if [ -n "$STUNNEL_BIN" ]; then
wsrep_log_info "Using stunnel for SSL encryption: CA: '$SSTCA'," \
"CAPATH='$SSTCAP', ssl-mode='$SSLMODE'"
STUNNEL="$STUNNEL_BIN $STUNNEL_CONF"
fi
fi
readonly SECRET_TAG="secret"
if [ "$WSREP_SST_OPT_ROLE" = 'donor' ]
then
[ -f "$MAGIC_FILE" ] && rm -f "$MAGIC_FILE"
[ -f "$BINLOG_TAR_FILE" ] && rm -f "$BINLOG_TAR_FILE"
[ -f "$STUNNEL_PID" ] && rm -f "$STUNNEL_PID"
if [ -n "$STUNNEL" ]
then
cat << EOF > "$STUNNEL_CONF"
key = $SSTKEY
cert = $SSTCERT
${CAFILE_OPT}
${CAPATH_OPT}
foreground = yes
pid = $STUNNEL_PID
debug = warning
client = yes
connect = $WSREP_SST_OPT_HOST_UNESCAPED:$WSREP_SST_OPT_PORT
TIMEOUTclose = 0
${VERIFY_OPT}
${CHECK_OPT}
${CHECK_OPT_LOCAL}
EOF
else
[ -f "$STUNNEL_CONF" ] && rm -f "$STUNNEL_CONF"
fi
RC=0
if [ $WSREP_SST_OPT_BYPASS -eq 0 ]; then
FLUSHED="$WSREP_SST_OPT_DATA/tables_flushed"
ERROR="$WSREP_SST_OPT_DATA/sst_error"
[ -f "$FLUSHED" ] && rm -f "$FLUSHED"
[ -f "$ERROR" ] && rm -f "$ERROR"
echo "flush tables"
# Wait for :
# (a) Tables to be flushed, AND
# (b) Cluster state ID & wsrep_gtid_domain_id to be written to the file, OR
# (c) ERROR file, in case flush tables operation failed.
while [ ! -r "$FLUSHED" ] && \
! grep -q -F ':' '--' "$FLUSHED" >/dev/null 2>&1
do
# Check whether ERROR file exists.
if [ -f "$ERROR" ]; then
# Flush tables operation failed.
rm -f "$ERROR"
exit 255
fi
sleep 0.2
done
STATE=$(cat "$FLUSHED")
rm -f "$FLUSHED"
sync
if [ -n "$WSREP_SST_OPT_BINLOG" -a -d "${BINLOG_DIRNAME:-}" ]
then
# Prepare binlog files
cd "$BINLOG_DIRNAME"
binlog_files_full=$(tail -n $BINLOG_N_FILES \
"$WSREP_SST_OPT_BINLOG_INDEX")
binlog_files=""
for file in $binlog_files_full; do
binlog_file=$(basename "$file")
binlog_files="$binlog_files${binlog_files:+ }'$binlog_file'"
done
if [ -n "$binlog_files" ]; then
wsrep_log_info "Preparing binlog files for transfer:"
eval tar -cvf "'$BINLOG_TAR_FILE'" $binlog_files >&2
fi
cd "$OLD_PWD"
fi
# Use deltaxfer only for WAN
inv=$(basename "$0")
WHOLE_FILE_OPT=""
if [ "${inv%wsrep_sst_rsync_wan*}" = "$inv" ]; then
WHOLE_FILE_OPT="--whole-file"
fi
# 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 '- /lost+found'
-f '- /.zfs'
-f '- /.fseventsd'
-f '- /.Trashes'
-f '- /.pid'
-f '- /.conf'
-f '+ /wsrep_sst_binlog.tar'
-f '- $INNODB_DATA_HOME_DIR/ib_lru_dump'
-f '- $INNODB_DATA_HOME_DIR/ibdata*'
-f '+ $INNODB_UNDO_DIR/undo*'
-f '+ /*/'
-f '- /*'"
# first, the normal directories, so that we can detect
# incompatible protocol:
eval rsync ${STUNNEL:+"--rsh='$STUNNEL'"} \
--owner --group --perms --links --specials \
--ignore-times --inplace --dirs --delete --quiet \
$WHOLE_FILE_OPT $FILTER "'$WSREP_SST_OPT_DATA/'" \
"'rsync://$WSREP_SST_OPT_ADDR'" >&2 || RC=$?
if [ $RC -ne 0 ]; then
wsrep_log_error "rsync returned code $RC:"
case $RC in
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
exit $RC
fi
# Transfer InnoDB data files
rsync ${STUNNEL:+--rsh="$STUNNEL"} \
--owner --group --perms --links --specials \
--ignore-times --inplace --dirs --delete --quiet \
$WHOLE_FILE_OPT -f '+ /ibdata*' -f '+ /ib_lru_dump' \
-f '- **' "$INNODB_DATA_HOME_DIR/" \
"rsync://$WSREP_SST_OPT_ADDR-data_dir" >&2 || RC=$?
if [ $RC -ne 0 ]; then
wsrep_log_error "rsync innodb_data_home_dir returned code $RC:"
exit 255 # unknown error
fi
# second, we transfer InnoDB and Aria log files
rsync ${STUNNEL:+--rsh="$STUNNEL"} \
--owner --group --perms --links --specials \
--ignore-times --inplace --dirs --delete --quiet \
$WHOLE_FILE_OPT -f '+ /ib_logfile[0-9]*' -f '+ /aria_log.*' \
-f '+ /aria_log_control' -f '- **' "$WSREP_LOG_DIR/" \
"rsync://$WSREP_SST_OPT_ADDR-log_dir" >&2 || RC=$?
if [ $RC -ne 0 ]; then
wsrep_log_error "rsync innodb_log_group_home_dir returned code $RC:"
exit 255 # unknown error
fi
# then, we parallelize the transfer of database directories,
# use '.' so that path concatenation works:
cd "$WSREP_SST_OPT_DATA"
backup_threads=$(parse_cnf '--mysqld|sst' 'backup-threads')
if [ -z "$backup_threads" ]; then
get_proc
backup_threads=$nproc
fi
find . -maxdepth 1 -mindepth 1 -type d -not -name 'lost+found' \
-not -name '.zfs' -print0 | xargs -I{} -0 -P $backup_threads \
rsync ${STUNNEL:+--rsh="$STUNNEL"} \
--owner --group --perms --links --specials --ignore-times \
--inplace --recursive --delete --quiet $WHOLE_FILE_OPT \
--exclude '*/ib_logfile*' --exclude '*/aria_log.*' \
--exclude '*/aria_log_control' "$WSREP_SST_OPT_DATA/{}/" \
"rsync://$WSREP_SST_OPT_ADDR/{}" >&2 || RC=$?
cd "$OLD_PWD"
if [ $RC -ne 0 ]; then
wsrep_log_error "find/rsync returned code $RC:"
exit 255 # unknown error
fi
else # BYPASS
wsrep_log_info "Bypassing state dump."
# Store donor's wsrep GTID (state ID) and wsrep_gtid_domain_id
# (separated by a space).
STATE="$WSREP_SST_OPT_GTID $WSREP_SST_OPT_GTID_DOMAIN_ID"
fi
echo 'continue' # now server can resume updating data
echo "$STATE" > "$MAGIC_FILE"
if [ -n "$WSREP_SST_OPT_REMOTE_PSWD" ]; then
# Let joiner know that we know its secret
echo "$SECRET_TAG $WSREP_SST_OPT_REMOTE_PSWD" >> "$MAGIC_FILE"
fi
rsync ${STUNNEL:+--rsh="$STUNNEL"} \
--archive --quiet --checksum "$MAGIC_FILE" \
"rsync://$WSREP_SST_OPT_ADDR" >&2 || RC=$?
if [ $RC -ne 0 ]; then
wsrep_log_error "rsync $MAGIC_FILE returned code $RC:"
exit 255 # unknown error
fi
echo "done $STATE"
if [ -n "$STUNNEL" ]; then
[ -f "$STUNNEL_CONF" ] && rm -f "$STUNNEL_CONF"
[ -f "$STUNNEL_PID" ] && rm -f "$STUNNEL_PID"
fi
elif [ "$WSREP_SST_OPT_ROLE" = 'joiner' ]
then
check_sockets_utils
SST_PID="$WSREP_SST_OPT_DATA/wsrep_sst.pid"
# give some time for previous SST to complete:
check_round=0
while check_pid "$SST_PID" 0 'wsrep_sst_'; do
wsrep_log_info "previous SST is not completed, waiting for it to exit"
check_round=$(( check_round + 1 ))
if [ $check_round -eq 10 ]; then
wsrep_log_error "previous SST script still running."
exit 114 # EALREADY
fi
sleep 1
done
echo $$ > "$SST_PID"
# give some time for stunnel from the previous SST to complete:
check_round=0
while check_pid "$STUNNEL_PID" 1; do
wsrep_log_info "Lingering stunnel daemon found at startup," \
"waiting for it to exit"
check_round=$(( check_round + 1 ))
if [ $check_round -eq 10 ]; then
wsrep_log_error "stunnel daemon already running."
exit 114 # EALREADY
fi
sleep 1
done
MODULE="${WSREP_SST_OPT_MODULE:-rsync_sst}"
RSYNC_PID="$WSREP_SST_OPT_DATA/$MODULE.pid"
RSYNC_CONF="$WSREP_SST_OPT_DATA/$MODULE.conf"
# give some time for rsync from the previous SST to complete:
check_round=0
while check_pid "$RSYNC_PID" 1; do
wsrep_log_info "Lingering rsync daemon found at startup," \
"waiting for it to exit"
check_round=$(( check_round + 1 ))
if [ $check_round -eq 10 ]; then
wsrep_log_error "rsync daemon already running."
exit 114 # EALREADY
fi
sleep 1
done
[ -f "$MAGIC_FILE" ] && rm -f "$MAGIC_FILE"
[ -f "$BINLOG_TAR_FILE" ] && rm -f "$BINLOG_TAR_FILE"
[ -z "$STUNNEL" -a -f "$STUNNEL_CONF" ] && rm -f "$STUNNEL_CONF"
ADDR="$WSREP_SST_OPT_HOST"
RSYNC_PORT="$WSREP_SST_OPT_PORT"
RSYNC_ADDR="$WSREP_SST_OPT_HOST"
RSYNC_ADDR_UNESCAPED="$WSREP_SST_OPT_HOST_UNESCAPED"
trap "exit 32" HUP PIPE
trap "exit 3" INT TERM ABRT
trap cleanup_joiner EXIT
touch "$SST_PROGRESS_FILE"
if [ -n "${MYSQL_TMP_DIR:-}" ]; then
SILENT="log file = $MYSQL_TMP_DIR/rsyncd.log"
else
SILENT=""
fi
cat << EOF > "$RSYNC_CONF"
pid file = $RSYNC_PID
use chroot = no
read only = no
timeout = 300
$SILENT
[$MODULE]
path = $WSREP_SST_OPT_DATA
exclude = .zfs
[$MODULE-log_dir]
path = $WSREP_LOG_DIR
[$MODULE-data_dir]
path = $INNODB_DATA_HOME_DIR
EOF
# rm -rf "$DATA/ib_logfile"* # we don't want old logs around
# If the IP is local, listen only on it:
if is_local_ip "$RSYNC_ADDR_UNESCAPED"
then
RSYNC_EXTRA_ARGS="--address $RSYNC_ADDR_UNESCAPED"
STUNNEL_ACCEPT="$RSYNC_ADDR_UNESCAPED:$RSYNC_PORT"
else
# Not local, possibly a NAT, listen on all interfaces:
RSYNC_EXTRA_ARGS=""
STUNNEL_ACCEPT="$RSYNC_PORT"
# Overwrite address with all:
RSYNC_ADDR="*"
fi
if [ -z "$STUNNEL" ]; then
rsync --daemon --no-detach --port "$RSYNC_PORT" \
--config "$RSYNC_CONF" $RSYNC_EXTRA_ARGS &
RSYNC_REAL_PID=$!
TRANSFER_REAL_PID=$RSYNC_REAL_PID
TRANSFER_PID="$RSYNC_PID"
else
# Let's check if the path to the config file contains a space?
RSYNC_BIN=$(commandex 'rsync')
if [ "${RSYNC_CONF#* }" = "$RSYNC_CONF" ]; then
cat << EOF > "$STUNNEL_CONF"
key = $SSTKEY
cert = $SSTCERT
${CAFILE_OPT}
${CAPATH_OPT}
foreground = yes
pid = $STUNNEL_PID
debug = warning
client = no
${VERIFY_OPT}
${CHECK_OPT}
${CHECK_OPT_LOCAL}
[rsync]
accept = $STUNNEL_ACCEPT
exec = $RSYNC_BIN
execargs = rsync --server --daemon --config=$RSYNC_CONF .
EOF
else
# The path contains a space, so we will run it via
# shell with "eval" command:
export RSYNC_CMD="eval '$RSYNC_BIN' --server --daemon --config='$RSYNC_CONF' ."
cat << EOF > "$STUNNEL_CONF"
key = $SSTKEY
cert = $SSTCERT
${CAFILE_OPT}
${CAPATH_OPT}
foreground = yes
pid = $STUNNEL_PID
debug = warning
client = no
${VERIFY_OPT}
${CHECK_OPT}
${CHECK_OPT_LOCAL}
[rsync]
accept = $STUNNEL_ACCEPT
exec = $SHELL
execargs = $SHELL -c \$RSYNC_CMD
EOF
fi
stunnel "$STUNNEL_CONF" &
STUNNEL_REAL_PID=$!
TRANSFER_REAL_PID=$STUNNEL_REAL_PID
TRANSFER_PID="$STUNNEL_PID"
fi
if [ "${SSLMODE#VERIFY}" != "$SSLMODE" ]
then # backward-incompatible behavior:
CN=""
if [ -n "$SSTCERT" ]
then
# find out my Common Name
get_openssl
if [ -z "$OPENSSL_BINARY" ]; then
wsrep_log_error \
'openssl not found but it is required for authentication'
exit 42
fi
CN=$("$OPENSSL_BINARY" x509 -noout -subject -in "$SSTCERT" | \
tr "," "\n" | grep -F 'CN =' | cut -d '=' -f2 | sed s/^\ // | \
sed s/\ %//)
fi
MY_SECRET="$(wsrep_gen_secret)"
# Add authentication data to address
ADDR="$CN:$MY_SECRET@$WSREP_SST_OPT_HOST"
else
MY_SECRET="" # for check down in recv_joiner()
fi
until check_pid_and_port "$TRANSFER_PID" $TRANSFER_REAL_PID \
"$RSYNC_ADDR_UNESCAPED" "$RSYNC_PORT"
do
sleep 0.2
done
echo "ready $ADDR:$RSYNC_PORT/$MODULE"
MYSQLD_PID="$WSREP_SST_OPT_PARENT"
# wait for SST to complete by monitoring magic file
while [ ! -r "$MAGIC_FILE" ] && check_pid "$TRANSFER_PID" && \
ps -p $MYSQLD_PID >/dev/null 2>&1
do
sleep 1
done
if ! ps -p $MYSQLD_PID >/dev/null 2>&1
then
wsrep_log_error \
"Parent mysqld process (PID: $MYSQLD_PID) terminated unexpectedly."
kill -- -$MYSQLD_PID
sleep 1
exit 32
fi
if [ -n "$WSREP_SST_OPT_BINLOG" ]; then
if [ -f "$BINLOG_TAR_FILE" ]; then
cd "$BINLOG_DIRNAME"
binlog_index="$WSREP_SST_OPT_BINLOG_INDEX"
# Clean up old binlog files first
rm -f "$BINLOG_FILENAME".[0-9]*
[ -f "$binlog_index" ] && rm -f "$binlog_index"
# Create a temporary file:
tmpdir=$(parse_cnf '--mysqld|sst' 'tmpdir')
if [ -z "$tmpdir" ]; then
tmpfile="$(mktemp)"
elif [ "$OS" = 'Linux' ]; then
tmpfile=$(mktemp "--tmpdir=$tmpdir")
else
tmpfile=$(TMPDIR="$tmpdir"; mktemp)
fi
wsrep_log_info "Extracting binlog files:"
if ! tar -xvf "$BINLOG_TAR_FILE" > "$tmpfile"; then
wsrep_log_error "Error unpacking tar file with binlog files"
rm -f "$tmpfile"
exit 32
fi
# Rebuild binlog index:
while read bin_file; do
echo "$BINLOG_DIRNAME/$bin_file" >> "$binlog_index"
done < "$tmpfile"
rm -f "$tmpfile"
cd "$OLD_PWD"
fi
fi
if [ -r "$MAGIC_FILE" ]; then
if [ -n "$MY_SECRET" ]; then
# check donor supplied secret
SECRET=$(grep -F -- "$SECRET_TAG " "$MAGIC_FILE" 2>/dev/null | \
cut -d ' ' -f 2)
if [ "$SECRET" != "$MY_SECRET" ]; then
wsrep_log_error "Donor does not know my secret!"
wsrep_log_info "Donor: '$SECRET', my: '$MY_SECRET'"
exit 32
fi
# remove secret from the magic file, and output
# the UUID:seqno & wsrep_gtid_domain_id:
grep -v -F -- "$SECRET_TAG " "$MAGIC_FILE"
else
# Output the UUID:seqno and wsrep_gtid_domain_id:
cat "$MAGIC_FILE"
fi
else
# this message should cause joiner to abort
echo "rsync process ended without creating '$MAGIC_FILE'"
fi
# wsrep_cleanup_progress_file
# cleanup_joiner
else
wsrep_log_error "Unrecognized role: '$WSREP_SST_OPT_ROLE'"
exit 22 # EINVAL
fi
[ -f "$BINLOG_TAR_FILE" ] && rm -f "$BINLOG_TAR_FILE"
exit 0
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