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mysql-clickhouse-replication's Introduction

mysql-clickhouse-replication

用于从mysql增量同步数据到clickhouse

环境要求:

python 2.7,同时可以利用pypy提高性能。

pypy部署命令

yum -y install pypy-libs pypy pypy-devel
wget https://bootstrap.pypa.io/get-pip.py
pypy get-pip.py
/usr/lib64/pypy-5.0.1/bin/pip install MySQL-python
/usr/lib64/pypy-5.0.1/bin/pip install mysql-replication
/usr/lib64/pypy-5.0.1/bin/pip install clickhouse-driver
/usr/lib64/pypy-5.0.1/bin/pip install redis

如果不使用pypy,而是使用python,那么模块安装命令

pip install MySQL-python
pip install mysql-replication
pip install clickhouse-driver
pip install redis

同步设置参考文档:

https://www.cnblogs.com/gomysql/p/11199856.html

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mysql-clickhouse-replication's Issues

插入语句报错

遇到如下错误,但是单独拿出来执行又不报错

09:45:15 ERROR    插入数据执行出错SQL:  INSERT INTO test.t_user VALUES,[{'id': 34, 'username': 'BB', 'password': '12', 'gmt_create': datetime.datetime(2020, 5, 29, 9, 42, 44), 'gmt_modified': datetime.datetime(2020, 5, 29, 9, 42, 44)}]
09:45:15 ERROR    Code: 27.
DB::Exception: Cannot parse input: expected '(' before: ',':  at row 0. Stack trace:

执行到插入环节就卡住

作者有没有遇到过执行到插入语句的时候就卡住

client.execute(sql['insert_sql'], sql['insert_data'], types_check=True)

单独拿出来用clickhouse_driver. execute又能正常执行。。

执行报错

Traceback (most recent call last):
File "mysql-clickhouse-replication.py", line 20, in
import clickhouse_driver
File "/usr/lib64/pypy-5.0.1/site-packages/clickhouse_driver/init.py", line 2, in
from .client import Client
File "/usr/lib64/pypy-5.0.1/site-packages/clickhouse_driver/client.py", line 7, in
from .connection import Connection
File "/usr/lib64/pypy-5.0.1/site-packages/clickhouse_driver/connection.py", line 11, in
from .bufferedreader import BufferedSocketReader
ImportError: unable to load extension module '/usr/lib64/pypy-5.0.1/site-packages/clickhouse_driver/bufferedreader.pypy-41.so': /usr/lib64/pypy-5.0.1/site-packages/clickhouse_driver/bufferedreader.pypy-41.so: undefined symbol: PyByteArray_AsString

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