File manager - Edit - /usr/bin/wsrep_sst_backup
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#!/usr/bin/env bash set -ue # Copyright (C) 2017-2024 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 backup recovery state snapshot transfer. . $(dirname "$0")/wsrep_sst_common MAGIC_FILE="$DATA/backup_sst_complete" wait_previous_sst [ -f "$MAGIC_FILE" ] && rm -f "$MAGIC_FILE" if [ "$WSREP_SST_OPT_ROLE" = 'donor' ] then RC=0 if [ $WSREP_SST_OPT_BYPASS -eq 0 ]; then FLUSHED="$DATA/tables_flushed" ERROR="$DATA/sst_error" [ -f "$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" 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" echo "done $STATE" else # joiner wsrep_log_error "Unsupported role: '$WSREP_SST_OPT_ROLE'" exit 22 # EINVAL fi wsrep_log_info "$WSREP_METHOD $WSREP_TRANSFER_TYPE completed on $WSREP_SST_OPT_ROLE" exit 0
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