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#!/usr/bin/env bash
set -ue
# Copyright (C) 2017-2022 MariaDB
# Copyright (C) 2010-2022 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 "$0")/wsrep_sst_common
wsrep_check_datadir
wsrep_check_programs rsync
cleanup_joiner()
{
# Since this is invoked just after exit NNN
local estatus=$?
if [ $estatus -ne 0 ]; then
wsrep_log_error "Cleanup after exit with status: $estatus"
elif [ -z "${coords:-}" ]; then
estatus=32
wsrep_log_error "Failed to get current position"
fi
local failure=0
[ "$(pwd)" != "$OLD_PWD" ] && cd "$OLD_PWD"
wsrep_log_info "Joiner cleanup: rsync PID=$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 "$MAGIC_FILE" || :
[ -f "$BINLOG_TAR_FILE" ] && rm -f "$BINLOG_TAR_FILE" || :
else
wsrep_log_warning "rsync cleanup failed."
fi
fi
if [ "$WSREP_SST_OPT_ROLE" = 'joiner' ]; then
wsrep_cleanup_progress_file
fi
[ -f "$SST_PID" ] && rm -f "$SST_PID" || :
wsrep_log_info "Joiner cleanup done."
exit $estatus
}
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"
get_binlog
if [ -n "$WSREP_SST_OPT_BINLOG" ]; then
binlog_dir=$(dirname "$WSREP_SST_OPT_BINLOG")
binlog_base=$(basename "$WSREP_SST_OPT_BINLOG")
fi
OLD_PWD="$(pwd)"
DATA="$WSREP_SST_OPT_DATA"
if [ -n "$DATA" -a "$DATA" != '.' ]; then
[ ! -d "$DATA" ] && mkdir -p "$DATA"
cd "$DATA"
fi
DATA_DIR="$(pwd)"
cd "$OLD_PWD"
BINLOG_TAR_FILE="$DATA_DIR/wsrep_sst_binlog.tar"
ar_log_dir="$DATA_DIR"
ib_log_dir="$DATA_DIR"
ib_home_dir="$DATA_DIR"
ib_undo_dir="$DATA_DIR"
# if no command line argument and INNODB_LOG_GROUP_HOME is not set,
# then try to get it from the my.cnf:
if [ -z "$INNODB_LOG_GROUP_HOME" ]; then
INNODB_LOG_GROUP_HOME=$(parse_cnf '--mysqld' 'innodb-log-group-home-dir')
INNODB_LOG_GROUP_HOME=$(trim_dir "$INNODB_LOG_GROUP_HOME")
fi
if [ -n "$INNODB_LOG_GROUP_HOME" -a "$INNODB_LOG_GROUP_HOME" != '.' -a \
"$INNODB_LOG_GROUP_HOME" != "$DATA_DIR" ]
then
# handle both relative and absolute paths:
cd "$DATA"
[ ! -d "$INNODB_LOG_GROUP_HOME" ] && mkdir -p "$INNODB_LOG_GROUP_HOME"
cd "$INNODB_LOG_GROUP_HOME"
ib_log_dir="$(pwd)"
cd "$OLD_PWD"
fi
# if no command line argument and INNODB_DATA_HOME_DIR environment
# variable is not set, try to get it from the my.cnf:
if [ -z "$INNODB_DATA_HOME_DIR" ]; then
INNODB_DATA_HOME_DIR=$(parse_cnf '--mysqld' 'innodb-data-home-dir')
INNODB_DATA_HOME_DIR=$(trim_dir "$INNODB_DATA_HOME_DIR")
fi
if [ -n "$INNODB_DATA_HOME_DIR" -a "$INNODB_DATA_HOME_DIR" != '.' -a \
"$INNODB_DATA_HOME_DIR" != "$DATA_DIR" ]
then
# handle both relative and absolute paths:
cd "$DATA"
[ ! -d "$INNODB_DATA_HOME_DIR" ] && mkdir -p "$INNODB_DATA_HOME_DIR"
cd "$INNODB_DATA_HOME_DIR"
ib_home_dir="$(pwd)"
cd "$OLD_PWD"
fi
# if no command line argument and INNODB_UNDO_DIR is not set,
# then try to get it from the my.cnf:
if [ -z "$INNODB_UNDO_DIR" ]; then
INNODB_UNDO_DIR=$(parse_cnf '--mysqld' 'innodb-undo-directory')
INNODB_UNDO_DIR=$(trim_dir "$INNODB_UNDO_DIR")
fi
if [ -n "$INNODB_UNDO_DIR" -a "$INNODB_UNDO_DIR" != '.' -a \
"$INNODB_UNDO_DIR" != "$DATA_DIR" ]
then
# handle both relative and absolute paths:
cd "$DATA"
[ ! -d "$INNODB_UNDO_DIR" ] && mkdir -p "$INNODB_UNDO_DIR"
cd "$INNODB_UNDO_DIR"
ib_undo_dir="$(pwd)"
cd "$OLD_PWD"
fi
# if no command line argument then try to get it from the my.cnf:
if [ -z "$ARIA_LOG_DIR" ]; then
ARIA_LOG_DIR=$(parse_cnf '--mysqld' 'aria-log-dir-path')
ARIA_LOG_DIR=$(trim_dir "$ARIA_LOG_DIR")
fi
if [ -n "$ARIA_LOG_DIR" -a "$ARIA_LOG_DIR" != '.' -a \
"$ARIA_LOG_DIR" != "$DATA_DIR" ]
then
# handle both relative and absolute paths:
cd "$DATA"
[ ! -d "$ARIA_LOG_DIR" ] && mkdir -p "$ARIA_LOG_DIR"
cd "$ARIA_LOG_DIR"
ar_log_dir="$(pwd)"
cd "$OLD_PWD"
fi
encgroups='--mysqld|sst'
check_server_ssl_config
SSTKEY="$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 $STUNNEL_CONF"
fi
fi
readonly SECRET_TAG='secret'
readonly BYPASS_TAG='bypass'
SST_PID="$WSREP_SST_OPT_DATA/wsrep_sst.pid"
# give some time for previous SST to complete:
check_round=0
while check_pid "$SST_PID" 0; do
wsrep_log_info "Previous SST is not completed, waiting for it to exit"
check_round=$(( check_round + 1 ))
if [ $check_round -eq 20 ]; then
wsrep_log_error "previous SST script still running."
exit 114 # EALREADY
fi
sleep 1
done
trap simple_cleanup EXIT
echo $$ > "$SST_PID"
# give some time for stunnel from the previous SST to complete:
check_round=0
while check_pid "$STUNNEL_PID" 1 "$STUNNEL_CONF"; do
wsrep_log_info "Lingering stunnel daemon found at startup," \
"waiting for it to exit"
check_round=$(( check_round + 1 ))
if [ $check_round -eq 10 ]; then
wsrep_log_error "stunnel daemon still running."
exit 114 # EALREADY
fi
sleep 1
done
MODULE="${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 "$RSYNC_PID" 1 "$RSYNC_CONF"; do
wsrep_log_info "Lingering rsync daemon found at startup," \
"waiting for it to exit"
check_round=$(( check_round + 1 ))
if [ $check_round -eq 10 ]; then
wsrep_log_error "rsync daemon still running."
exit 114 # EALREADY
fi
sleep 1
done
[ -f "$MAGIC_FILE" ] && rm -f "$MAGIC_FILE"
[ -f "$BINLOG_TAR_FILE" ] && rm -f "$BINLOG_TAR_FILE"
RC=0
if [ "$WSREP_SST_OPT_ROLE" = 'donor' ]; then
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
fi
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 ':' -- "$FLUSHED"
do
# Check whether ERROR file exists.
if [ -f "$ERROR" ]; then
# Flush tables operation failed.
rm "$ERROR"
exit 255
fi
sleep 0.2
done
STATE=$(cat "$FLUSHED")
rm "$FLUSHED"
sync
wsrep_log_info "Tables flushed"
if [ -n "$WSREP_SST_OPT_BINLOG" ]; then
# Change the directory to binlog base (if possible):
cd "$DATA"
# Let's check the existence of the file with the index:
if [ -f "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
# Let's read the binlog index:
max_binlogs=$(parse_cnf "$encgroups" 'sst-max-binlogs' 1)
if [ $max_binlogs -ge 0 ]; then
binlog_files=""
if [ $max_binlogs -gt 0 ]; then
binlog_files=$(tail -n $max_binlogs \
"$WSREP_SST_OPT_BINLOG_INDEX")
fi
else
binlog_files=$(cat "$WSREP_SST_OPT_BINLOG_INDEX")
fi
if [ -n "$binlog_files" ]; then
# Preparing binlog files for transfer:
wsrep_log_info "Preparing binlog files for transfer:"
tar_type=0
if tar --help | grep -qw -F -- '--transform'; then
tar_type=1
elif tar --version | grep -qw -E '^bsdtar'; then
tar_type=2
fi
if [ $tar_type -eq 2 ]; then
if [ -n "$BASH_VERSION" ]; then
printf '%s' "$binlog_files" >&2
else
echo "$binlog_files" >&2
fi
fi
if [ $tar_type -ne 0 ]; then
# Preparing list of the binlog file names:
echo "$binlog_files" | {
binlogs=""
while read bin_file || [ -n "$bin_file" ]; do
[ ! -f "$bin_file" ] && continue
if [ -n "$BASH_VERSION" ]; then
first="${bin_file:0:1}"
else
first=$(echo "$bin_file" | cut -c1)
fi
if [ "$first" = '-' -o "$first" = '@' ]; then
bin_file="./$bin_file"
fi
binlogs="$binlogs${binlogs:+ }'$bin_file'"
done
if [ -n "$binlogs" ]; then
if [ $tar_type -eq 1 ]; then
tar_options="--transform='s/^.*\///g'"
else
# bsdtar handles backslash incorrectly:
tar_options="-s '?^.*/??g'"
fi
eval tar -P $tar_options \
-cvf "'$BINLOG_TAR_FILE'" $binlogs >&2
fi
}
else
tar_options='-cvf'
echo "$binlog_files" | \
while read bin_file || [ -n "$bin_file" ]; do
[ ! -f "$bin_file" ] && continue
bin_dir=$(dirname "$bin_file")
bin_base=$(basename "$bin_file")
if [ -n "$BASH_VERSION" ]; then
first="${bin_base:0:1}"
else
first=$(echo "$bin_base" | cut -c1)
fi
if [ "$first" = '-' -o "$first" = '@' ]; then
bin_base="./$bin_base"
fi
if [ -n "$bin_dir" -a "$bin_dir" != '.' -a \
"$bin_dir" != "$DATA_DIR" ]
then
tar $tar_options "$BINLOG_TAR_FILE" \
-C "$bin_dir" "$bin_base" >&2
else
tar $tar_options "$BINLOG_TAR_FILE" \
"$bin_base" >&2
fi
tar_options='-rvf'
done
fi
fi
fi
cd "$OLD_PWD"
fi
# Use deltaxfer only for WAN:
WHOLE_FILE_OPT=""
if [ "${WSREP_METHOD%_wan}" = "$WSREP_METHOD" ]; 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 '- $ib_home_dir/ib_lru_dump'
-f '- $ib_home_dir/ibdata*'
-f '- $ib_undo_dir/undo*'
-f '- $ib_log_dir/ib_logfile[0-9]*'
-f '- $ar_log_dir/aria_log_control'
-f '- $ar_log_dir/aria_log.*'
-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
wsrep_log_info "Transfer of normal directories done"
# Transfer InnoDB data files
rsync ${STUNNEL:+--rsh="$STUNNEL"} \
--owner --group --perms --links --specials \
--ignore-times --inplace --dirs --delete --quiet \
$WHOLE_FILE_OPT -f '+ /ibdata*' -f '+ /ib_lru_dump' \
-f '- **' "$ib_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
wsrep_log_info "Transfer of InnoDB data files done"
# second, we transfer InnoDB log files
rsync ${STUNNEL:+--rsh="$STUNNEL"} \
--owner --group --perms --links --specials \
--ignore-times --inplace --dirs --delete --quiet \
$WHOLE_FILE_OPT -f '+ /ib_logfile[0-9]*' \
-f '- **' "$ib_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
wsrep_log_info "Transfer of InnoDB log files done"
# third, we transfer InnoDB undo logs
rsync ${STUNNEL:+--rsh="$STUNNEL"} \
--owner --group --perms --links --specials \
--ignore-times --inplace --dirs --delete --quiet \
$WHOLE_FILE_OPT -f '+ /undo*' \
-f '- **' "$ib_undo_dir/" \
"rsync://$WSREP_SST_OPT_ADDR-undo_dir" >&2 || RC=$?
if [ $RC -ne 0 ]; then
wsrep_log_error "rsync innodb_undo_dir returned code $RC:"
exit 255 # unknown error
fi
wsrep_log_info "Transfer of InnoDB undo logs done"
# fourth, we transfer Aria logs
rsync ${STUNNEL:+--rsh="$STUNNEL"} \
--owner --group --perms --links --specials \
--ignore-times --inplace --dirs --delete --quiet \
$WHOLE_FILE_OPT -f '+ /aria_log_control' -f '+ /aria_log.*' \
-f '- **' "$ar_log_dir/" \
"rsync://$WSREP_SST_OPT_ADDR-aria_log" >&2 || RC=$?
if [ $RC -ne 0 ]; then
wsrep_log_error "rsync aria_log_dir_path returned code $RC:"
exit 255 # unknown error
fi
wsrep_log_info "Transfer of Aria logs done"
# then, we parallelize the transfer of database directories,
# use '.' so that path concatenation works:
backup_threads=$(parse_cnf '--mysqld|sst' 'backup-threads')
if [ -z "$backup_threads" ]; then
get_proc
backup_threads=$nproc
fi
cd "$DATA"
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 \
-f '- $ib_home_dir/ib_lru_dump' \
-f '- $ib_home_dir/ibdata*' \
-f '- $ib_undo_dir/undo*' \
-f '- $ib_log_dir/ib_logfile[0-9]*' \
-f '- $ar_log_dir/aria_log_control' \
-f '- $ar_log_dir/aria_log.*' \
"$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 $RC:"
exit 255 # unknown error
fi
wsrep_log_info "Transfer of data done"
[ -f "$BINLOG_TAR_FILE" ] && rm "$BINLOG_TAR_FILE"
else # BYPASS
wsrep_log_info "Bypassing state dump."
# Store donor's wsrep GTID (state ID) and wsrep_gtid_domain_id
# (separated by a space).
STATE="$WSREP_SST_OPT_GTID $WSREP_SST_OPT_GTID_DOMAIN_ID"
fi
wsrep_log_info "Sending continue to donor"
echo 'continue' # now server can resume updating data
echo "$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
if [ $WSREP_SST_OPT_BYPASS -ne 0 ]; then
echo "$BYPASS_TAG" >> "$MAGIC_FILE"
fi
rsync ${STUNNEL:+--rsh="$STUNNEL"} \
--archive --quiet --checksum "$MAGIC_FILE" \
"rsync://$WSREP_SST_OPT_ADDR" >&2 || RC=$?
rm "$MAGIC_FILE"
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
rm "$STUNNEL_CONF"
[ -f "$STUNNEL_PID" ] && rm "$STUNNEL_PID"
fi
else # joiner
check_sockets_utils
ADDR="$WSREP_SST_OPT_HOST"
RSYNC_PORT="$WSREP_SST_OPT_PORT"
RSYNC_ADDR="$WSREP_SST_OPT_HOST"
RSYNC_ADDR_UNESCAPED="$WSREP_SST_OPT_HOST_UNESCAPED"
trap cleanup_joiner EXIT
touch "$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 = $ib_log_dir
[$MODULE-data_dir]
path = $ib_home_dir
[$MODULE-undo_dir]
path = $ib_undo_dir
[$MODULE-aria_log]
path = $ar_log_dir
EOF
# If the IP is local, listen only on it:
if is_local_ip "$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 [ ! -r "$MAGIC_FILE" ]; then
# This message should cause joiner to abort:
wsrep_log_info "rsync process ended without creating" \
"magic file ($MAGIC_FILE)"
exit 32
fi
if [ -n "$MY_SECRET" ]; then
# Check donor supplied secret:
SECRET=$(grep -m1 -E "^$SECRET_TAG[[:space:]]" "$MAGIC_FILE" || :)
SECRET=$(trim_string "${SECRET#$SECRET_TAG}")
if [ "$SECRET" != "$MY_SECRET" ]; then
wsrep_log_error "Donor does not know my secret!"
wsrep_log_info "Donor: '$SECRET', my: '$MY_SECRET'"
exit 32
fi
fi
if [ $WSREP_SST_OPT_BYPASS -eq 0 ]; then
if grep -m1 -qE "^$BYPASS_TAG([[:space:]]+.*)?\$" "$MAGIC_FILE"; then
readonly WSREP_SST_OPT_BYPASS=1
readonly WSREP_TRANSFER_TYPE='IST'
fi
fi
binlog_tar_present=0
if [ -f "$BINLOG_TAR_FILE" ]; then
binlog_tar_present=1
if [ $WSREP_SST_OPT_BYPASS -ne 0 ]; then
wsrep_log_warning "tar with binlogs transferred in the IST mode"
fi
fi
if [ $WSREP_SST_OPT_BYPASS -eq 0 -a -n "$WSREP_SST_OPT_BINLOG" ]; then
# If it is SST (not an IST) or tar with binlogs is present
# among the transferred files, then we need to remove the
# old binlogs:
cd "$DATA"
# Clean up the old binlog files and index:
binlog_index="$WSREP_SST_OPT_BINLOG_INDEX"
if [ -f "$binlog_index" ]; then
while read bin_file || [ -n "$bin_file" ]; do
rm -f "$bin_file" || :
done < "$binlog_index"
rm "$binlog_index"
fi
binlog_cd=0
# Change the directory to binlog base (if possible):
if [ -n "$binlog_dir" -a "$binlog_dir" != '.' -a \
"$binlog_dir" != "$DATA_DIR" -a -d "$binlog_dir" ]
then
binlog_cd=1
cd "$binlog_dir"
fi
# Clean up unindexed binlog files:
rm -f "$binlog_base".[0-9]* || :
[ $binlog_cd -ne 0 ] && cd "$DATA_DIR"
if [ $binlog_tar_present -ne 0 ]; then
# Create a temporary file:
tmpdir=$(parse_cnf '--mysqld|sst' 'tmpdir')
if [ -z "$tmpdir" ]; then
tmpfile="$(mktemp)"
elif [ "$OS" = 'Linux' ]; then
tmpfile=$(mktemp "--tmpdir=$tmpdir")
else
tmpfile=$(TMPDIR="$tmpdir"; mktemp)
fi
index_dir=$(dirname "$binlog_index");
if [ -n "$index_dir" -a "$index_dir" != '.' -a \
"$index_dir" != "$DATA_DIR" ]
then
[ ! -d "$index_dir" ] && mkdir -p "$index_dir"
fi
binlog_cd=0
if [ -n "$binlog_dir" -a "$binlog_dir" != '.' -a \
"$binlog_dir" != "$DATA_DIR" ]
then
[ ! -d "$binlog_dir" ] && mkdir -p "$binlog_dir"
binlog_cd=1
cd "$binlog_dir"
fi
# Extracting binlog files:
wsrep_log_info "Extracting binlog files:"
if tar --version | grep -qw -E '^bsdtar'; then
tar -tf "$BINLOG_TAR_FILE" > "$tmpfile" && \
tar -xvf "$BINLOG_TAR_FILE" > /dev/null || RC=$?
else
tar -xvf "$BINLOG_TAR_FILE" > "$tmpfile" && \
cat "$tmpfile" >&2 || RC=$?
fi
if [ $RC -ne 0 ]; then
wsrep_log_error "Error unpacking tar file with binlog files"
rm "$tmpfile"
exit 32
fi
# Rebuild binlog index:
[ $binlog_cd -ne 0 ] && cd "$DATA_DIR"
while read bin_file || [ -n "$bin_file" ]; do
echo "$binlog_dir${binlog_dir:+/}$bin_file" >> "$binlog_index"
done < "$tmpfile"
rm "$tmpfile"
cd "$OLD_PWD"
fi
fi
# Remove special tags from the magic file, and from the output:
coords=$(head -n1 "$MAGIC_FILE")
wsrep_log_info "Galera co-ords from recovery: $coords"
echo "$coords" # Output : UUID:seqno wsrep_gtid_domain_id
fi
wsrep_log_info "$WSREP_METHOD $WSREP_TRANSFER_TYPE completed on $WSREP_SST_OPT_ROLE"
exit 0
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