#!/bin/sh
BACKUP_BIN=/usr/bin/mysqlbinlog
LOCAL_BACKUP_DIR=/dir1/dir2/
BACKUP_LOG=/dir1/dir2/backuplog
REMOTE_HOST=yourhost
REMOTE_PORT=3306
REMOTE_USER=youruser
REMOTE_PASS=yourpasswd
FIRST_BINLOG=mysql-bin-changelog.010105
#time to wait before reconnecting after failure
SLEEP_SECONDS=10
##create local_backup_dir if necessary
mkdir -p ${LOCAL_BACKUP_DIR}
cd ${LOCAL_BACKUP_DIR}
## 运行while循环，连接断开后等待指定时间，重新连接
while :
do
if [ `ls -A "${LOCAL_BACKUP_DIR}" |wc -l` -eq 0 ];then
LAST_FILE=${FIRST_BINLOG}
else
LAST_FILE=`ls -l ${LOCAL_BACKUP_DIR} | grep -v backuplog |tail -n 1 |awk '{print $9}'`
fi
${BACKUP_BIN} --raw --read-from-remote-server --stop-never --host=${REMOTE_HOST} --port=${REMOTE_PORT} --user=${REMOTE_USER} --password=${REMOTE_PASS} --result-file=${LOCAL_BACKUP_DIR} ${LAST_FILE}
echo "`date +"%Y/%m/%d %H:%M:%S"` mysqlbinlog停止，返回代码：$?" | tee -a ${BACKUP_LOG}
echo "${SLEEP_SECONDS}秒后再次连接并继续备份" | tee -a ${BACKUP_LOG}
sleep ${SLEEP_SECONDS}
done
