python连接clickhouse,UnexpectedPacketFromServerError: Code: 102
python连接clickhouse,UnexpectedPacketFromServerError: Code: 102
·
安装驱动
pip install clickhouse-driver
本地环境
python Python 3.8.8
clickhouse-driver 0.2.8
clickhouse server 20.3
https://github.com/mymarilyn/clickhouse-driver
https://clickhouse-driver.readthedocs.io/en/latest/installation.html
from clickhouse_driver import Client
ck = Client(
user=clickhouse_config['user'],
password=clickhouse_config['password'],
host=clickhouse_config['host'], port=clickhouse_config['port'],
database=clickhouse_config['database']
)
sql = "SELECT id,author,publisher,title,summary FROM bigdata.dw_dim_metadata_book_cip_all WHERE `title` = '互联网' limit 1"
res = ck.execute(sql) # list
这里特别要注意的一点是端口问题
,HTTP协议(默认端口8123);TCP (Native)协议(默认端口号为9000),Python里的clickhouse_driver用的TCP端口9000,DBeaver使用的是HTTP端口。
如果端口错误包报错:UnexpectedPacketFromServerError: Code: 102. Unexpected packet from server 220.202.33.52:19100 (expected Hello or Exception, got Unknown packet)
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