python写入数据到clickhouse

环境:

python3.6

 clickhouse-server-20.8.3.18

1.加载clickhouse驱动包

pip3 install clickhouse_driver

2.表结构

全局表

CREATE TABLE db_test.metric_all
(
    `app` String,
    `block_qps` Int64,
    `count` Int64,
    `exception_qps` Int64,
    `gmt_create` DateTime DEFAULT now(),
    `gmt_modified` DateTime DEFAULT now(),
    `id` Int64,
    `machine_ip` Nullable(String),
    `pass_qps` Int64,
    `resource` String,
    `resource_code` Int64,
    `rt` Float64,
    `success_qps` Int64,
    `timestamp` DateTime DEFAULT now(),
    `day` Date DEFAULT now()
)
ENGINE = Distributed('perftest_3shards_1replicas', 'db_test', 'metric_local', id)

本地表

CREATE TABLE db_test.metric_local
(
    `app` String,
    `block_qps` Int64,
    `count` Int64,
    `exception_qps` Int64,
    `gmt_create` DateTime DEFAULT now(),
    `gmt_modified` DateTime DEFAULT now(),
    `id` Int64,
    `machine_ip` Nullable(String),
    `pass_qps` Int64,
    `resource` String,
    `resource_code` Int64,
    `rt` Float64,
    `success_qps` Int64,
    `timestamp` DateTime DEFAULT now(),
    `day` Date DEFAULT now()
)
ENGINE = MergeTree
PARTITION BY day
ORDER BY id
SETTINGS index_granularity = 8192

3.写入数据

from clickhouse_driver import Client


client = Client(host='192.168.1.118',database='db_test',user='dbaadmin' ,password='123456')

for i in range(201, 100000):
    str_i = str(i)
    ##insert_sql = "insert into user_local(id,name) values ('%s','%s')" % (i, "name" + str_i)
    insert_sql = "insert into metric_all(app,block_qps,count,exception_qps,id,machine_ip,pass_qps,resource,resource_code,rt,success_qps) values ('%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s')" % (
    "app" + str_i, i, i, i, i, "machine_ip" + str_i, i, "resource" + str_i, i, i, i)
    ans = client.execute(insert_sql)