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#!/bin/sh | |
# | |
## This is called to back up the WAL files to the slave. | |
## This is on top of replication and is used as another | |
## method to secure data successfully transferring from one | |
## database server to another. | |
ARCHIVE_DIR_ON_SLAVE="/var/lib/postgresql/walfiles" | |
LOG=1 | |
LOG_FILE="/tmp/postgres_wal_archiving.log" | |
log() { echo "`date --rfc-3339=ns` $1" >> "$LOG_FILE"; } | |
log_error() { echo "`date --rfc-3339=ns` $1" >> "$LOG_FILE"; exit 1; } | |
wal_path="$1" | |
wal_file="$2" | |
backup_server="db02" | |
if [ $LOG -eq 1 ] | |
then | |
log "Transfering file to backup server, filename: $wal_file" | |
fi | |
rsync "$wal_path" "$backup_server:$ARCHIVE_DIR_ON_SLAVE" | |
if [ $LOG -eq 1 ] | |
then | |
if [ "$?" -eq 0 ]; then | |
log "Transfer to slave server completed" | |
else | |
log_error "Sending $wal_file failed." | |
fi | |
fi |
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