zoulei

why every select always need to query all vmstorage Node

12

why every select request， always need to query all vmstorage Node？

dose ck support rewriteBatchedStatements when i use ck jdbc client

1

in my case ,i have used jdbc： https://github.com/ClickHouse/clickhouse-java/blob/main/examples/jdbc/src/main/java/com/clickhouse/examples/jdbc/Basic.java **here is my config:** spring: datasource: url: jdbc:ch://xxxxxxxxx/default?rewriteBatchedStatements=true username: password: driver-class-name: com.clickhouse.jdbc.ClickHouseDriver hikari: maximum-pool-size: 500 minimum-idle: 50 connection-timeout: 5000 **write code:** i...

i find that there are two types of clients, I have a lot of write requests, which is more efficient?

1

**1. my first question:** use jdbc： https://github.com/ClickHouse/clickhouse-java/blob/main/examples/jdbc/src/main/java/com/clickhouse/examples/jdbc/Basic.java use client: https://github.com/ClickHouse/clickhouse-java/blob/main/examples/client/src/main/java/com/clickhouse/examples/jdbc/Main.java I have a lot of write requests, and need to write in batch mode, so which is more efficient? can...

how to fix back to source question

1

1. i hava deploy harbor in guangzhou 、shanghai、 singapore， use oss storage deploy architecture： 2. my scenario is as follows： first, images between harbors are synchronized using the harbor replication...