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galera SST scripts: unification of wsrep_sst_backup with the other scripts

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Julius Goryavsky 2024-09-10 22:57:51 +02:00
parent fbd8829149
commit 4cb73f49bc
1 changed files with 14 additions and 28 deletions
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42
scripts/wsrep_sst_backup.sh
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@ -21,50 +21,32 @@ set -ue
# This is a reference script for rsync-based state snapshot transfer # 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="$(uname)" OS="$(uname)"
[ "$OS" = 'Darwin' ] && export -n LD_LIBRARY_PATH [ "$OS" = 'Darwin' ] && export -n LD_LIBRARY_PATH
# Setting the path for lsof on CentOS
export PATH="/usr/sbin:/sbin:$PATH"
. $(dirname "$0")/wsrep_sst_common . $(dirname "$0")/wsrep_sst_common
wsrep_check_datadir
MAGIC_FILE="$WSREP_SST_OPT_DATA/backup_sst_complete" DATA="$WSREP_SST_OPT_DATA"
rm -r "$MAGIC_FILE"
WSREP_LOG_DIR=${WSREP_LOG_DIR:-""} MAGIC_FILE="$DATA/backup_sst_complete"
# if WSREP_LOG_DIR env. variable is not set, try to get it from my.cnf
if [ -z "$WSREP_LOG_DIR" ]; then
WSREP_LOG_DIR=$(parse_cnf mysqld innodb-log-group-home-dir '')
fi
if [ -n "$WSREP_LOG_DIR" ]; then [ -f "$MAGIC_FILE" ] && rm -f "$MAGIC_FILE"
# handle both relative and absolute paths
WSREP_LOG_DIR=$(cd $WSREP_SST_OPT_DATA; mkdir -p "$WSREP_LOG_DIR"; cd $WSREP_LOG_DIR; pwd -P)
else
# default to datadir
WSREP_LOG_DIR=$(cd $WSREP_SST_OPT_DATA; pwd -P)
fi
if [ "$WSREP_SST_OPT_ROLE" = 'donor' ] if [ "$WSREP_SST_OPT_ROLE" = 'donor' ]
then then
[ -f "$MAGIC_FILE" ] && rm -f "$MAGIC_FILE"
RC=0 RC=0
if [ $WSREP_SST_OPT_BYPASS -eq 0 ]; then if [ $WSREP_SST_OPT_BYPASS -eq 0 ]; then
FLUSHED="$WSREP_SST_OPT_DATA/tables_flushed" FLUSHED="$DATA/tables_flushed"
ERROR="$WSREP_SST_OPT_DATA/sst_error" ERROR="$DATA/sst_error"
[ -f "$FLUSHED" ] && rm -f "$FLUSHED" [ -f "$FLUSHED" ] && rm -f "$FLUSHED"
[ -f "$ERROR" ] && rm -f "$ERROR" [ -f "$ERROR" ] && rm -f "$ERROR"
echo "flush tables" echo 'flush tables'
# Wait for : # Wait for :
# (a) Tables to be flushed, AND # (a) Tables to be flushed, AND
@ -77,19 +59,23 @@ then
# Check whether ERROR file exists. # Check whether ERROR file exists.
if [ -f "$ERROR" ]; then if [ -f "$ERROR" ]; then
# Flush tables operation failed. # Flush tables operation failed.
rm -f "$ERROR" rm "$ERROR"
exit 255 exit 255
fi fi
sleep 0.2 sleep 0.2
done done
STATE=$(cat "$FLUSHED") STATE=$(cat "$FLUSHED")
rm -f "$FLUSHED" rm "$FLUSHED"
else # BYPASS else # BYPASS
wsrep_log_info "Bypassing state dump." wsrep_log_info "Bypassing state dump."
# Store donor's wsrep GTID (state ID) and wsrep_gtid_domain_id
# (separated by a space).
STATE="$WSREP_SST_OPT_GTID $WSREP_SST_OPT_GTID_DOMAIN_ID"
fi fi
echo 'continue' # now server can resume updating data echo 'continue' # now server can resume updating data