分分钟搭建MySQL一主多从环境(r12笔记第31天)

24801 s1   Y
24802 s2   N
24803 s3   N
24804 s4   N
24805 s5   N

# cat s2.cnf
[mysqld]
# server configuration
datadir=${base_data_dir}/${node_name}
basedir=${base_dir}

port=${port}
socket=${base_data_dir}/${node_name}/${node_name}.sock
server_id=${port}
gtid_mode=ON
enforce_gtid_consistency=ON
master_info_repository=TABLE
relay_log_info_repository=TABLE
binlog_checksum=NONE
log_slave_updates=ON
log_bin=binlog
binlog_format=ROW

base_dir=/usr/local/mysql
base_data_dir=/home/data
pri_port=`cat init2.lst|grep Y|awk '{print $1}'`
pri_ip=127.0.0.1
pri_node=`cat init2.lst|grep Y|awk '{print $2}'`

function init_node
{
port=$1
node_name=$2
primary_flag=$3
${base_dir}/bin/mysqld  --initialize-insecure --basedir=${base_dir}  --datadir=${base_data_dir}/${node_name}  --explicit_defaults_for_timestamp

chown -R mysql:mysql  ${base_data_dir}/${node_dir}

cp ${base_data_dir}/s2.cnf ${base_data_dir}/${node_name}/${node_name}.cnf
sed -i 's:${base_data_dir}:'"${base_data_dir}:g"'' ${base_data_dir}/${node_name}/${node_name}.cnf
sed -i 's:${base_dir}:'"${base_dir}:g"'' ${base_data_dir}/${node_name}/${node_name}.cnf
sed -i 's:${node_name}:'"${node_name}:g"''  ${base_data_dir}/${node_name}/${node_name}.cnf
sed -i 's:${port}:'"${port}:g"''  ${base_data_dir}/${node_name}/${node_name}.cnf

chown -R mysql:mysql ${base_data_dir}/${node_name}

${base_dir}/bin/mysqld_safe --defaults-file=${base_data_dir}/${node_name}/${node_name}.cnf &

sleep  5

${base_dir}/bin/mysql -P${port}  -S ${base_data_dir}/${node_name}/${node_name}.sock  -e "show databases"

if [[ ${primary_flag} = 'Y' ]];then

mysql -P${port}  -S ${base_data_dir}/${node_name}/${node_name}.sock -e "
CREATE USER rpl_user@'%';
GRANT REPLICATION SLAVE ON *.* TO rpl_user@'%' IDENTIFIED BY 'rpl_pass';
FLUSH PRIVILEGES;
"
elif [[ ${primary_flag} = 'N' ]];then
echo ${pri_node}"primary"
echo ${pri_port}
mysqldump  -P${pri_port} -S ${base_data_dir}/${pri_node}/${pri_node}.sock   --default-character-set=utf8 --single-transaction -R --triggers -q  --all-databases  |mysql -P${port}  -S  ${base_data_dir}/${node_name}/${node_name}.sock

echo "CHANGE  MASTER TO MASTER_USER='rpl_user', MASTER_PASSWORD='rpl_pass' ,  MASTER_HOST='127.0.0.1',MASTER_PORT="${pri_port}",MASTER_AUTO_POSITION =  1"|mysql -P${port}  -S ${base_data_dir}/${node_name}/${node_name}.sock

mysql -P${port}  -S ${base_data_dir}/${node_name}/${node_name}.sock -e "
start slave;
show slave status\G;
"
else
   echo 'Please check variable primary_flag'
fi
}

#MAIN

while read line
do
echo ${seed_list}
init_node $line
done <init2.lst