1、提前准备源Gauss300、目标 ADB PG数据库连接信息。
bash
psql -hx.x.x.x -p25308 -Utest1 -ddb_name
xxxxxx
psql -hx.x.x.x -p3432 -Utest1 -ddb_name
xxxxxx
2、编写迁移脚本,并执行迁移。
bash
#!/bin/bash
file_name=1.json
today_data=`date "+%Y-%m-%d 00:00:00"`
yesterday_data=`date -d "1 days ago" "+%Y-%m-%d 00:00:00"`
cat > $file_name << EOF
{
"job": {
"setting": {
"speed": {
"channel": 2
},
"errorLimit": {
"record": 0,
"percentage": 0.02
}
},
"content": [
{
"reader": {
"name": "gaussdbreader",
"parameter": {
"username": "xxxxxx",
"password": "xxxxxx",
"column": [
'*'
],
"connection": [
{
"querySql": [
"select * from table_name where load_time >= '$yesterday_data' and load_time < '$today_data';"
],
"jdbcUrl": [
"jdbc:opengauss://x.x.x.x/db_name"
]
}
]
}
},
"writer": {
"name": "postgresqlwriter",
"parameter": {
"username": "xxxxxx",
"password": "xxxxxx",
"column": [
"*"
],
"connection": [{
"jdbcUrl": "jdbc:postgresql://x.x.x.x:3432/db_name",
"table": [
"table_name"
]
}]
}
}
}
]
}
}
EOF
nohup python /data/datax/datax/bin/datax.py /data/shell/qianyi/$file_name > /data/shell/qianyi/$file_name.log 2>&1 &