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canal/example/src/main/bin/init.sh
2015-07-23 10:42:03 +08:00

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#! /bin/bash
current_path=`pwd`
case "`uname`" in
Linux)
bin_abs_path=$(readlink -f $(dirname $0))
;;
*)
bin_abs_path=`cd $(dirname $0); pwd`
;;
esac
base=${bin_abs_path}/..
# default values
PORT=3306
MYSQL_IP="0"
# parse arguments
while getopts "h:p:" opt; do
case $opt in
p)
if [[ $OPTARG -gt 0 ]]; then
PORT=$OPTARG
else
echo "Invalid -p option: -$OPTARG, should be positive integer >&2"
exit 1
fi
;;
h)
MYSQL_IP=$OPTARG
;;
\?)
printUsage
exit 1
;;
esac
done
function printUsage
{
cat << __Usage
Initialise the instance config property file automatically. This tool will connect to Mysql master server and get the binlog file and position then update the instance config property file for you.
Usage: $0 -p [port] -h [hostname]
Options:
-p: mysql port, default to 3306
-h: mysql host ip.
For example:
$0 -p 3306 -h 172.17.0.2
Enjoy!!!
__Usage
}
if [[ $PORT -lt 0 ]]; then
echo "invalid port argument $PORT"
printUsage
exit 1
fi
# check if mysql ip is specified
if [[ $MYSQL_IP = "0" ]]; then
echo '-h mysql host ip argument is required.'
printUsage
exit 1
fi
MYSQL_ADDR="$MYSQL_IP:$PORT"
MASTER_STATUS=`mysql -ucanal -pcanal -h$MYSQL_IP -P$PORT -e 'show master status' 2>/dev/null | head -n 2 | tail -n 1`
LOG_FILE=`echo "$MASTER_STATUS" | cut -f 1`
LOG_POS=`echo "$MASTER_STATUS" | cut -f 2`
INSTANCE_CONF_FILE=$base/conf/example/instance.properties
if [ ! -f $INSTANCE_CONF_FILE ]; then
echo "Can not find instance config file: $INSTANCE_CONF_FILE"
exit 1
fi
# replace the binlog file and position
sed -i.bak -e "s/canal\.instance\.master\.address = .*/canal\.instance\.master\.address = $MYSQL_ADDR/" -e "s/canal\.instance\.master\.journal\.name = .*/canal\.instance\.master\.journal\.name = $LOG_FILE/" -e "s/canal\.instance\.master\.position = .*/canal\.instance\.master\.position = $LOG_POS/" $INSTANCE_CONF_FILE
cat $INSTANCE_CONF_FILE
echo
echo 'Above is your instance config file, check if the settings are correct'
echo