ClickHouse常见问题——ClickHouseKeeper配置listen_host后不生效

ClickHouseKeeper配置listen_host后不生效

3节点部署ClickHouse集群后，ClickHouse Server执行报错：

Poco::Exception. Code: 1000, e.code() = 111, Connection refused (version 25.7.4.11 (official build)), 192.168.0.106:9181
Poco::Exception. Code: 1000, e.code() = 111, Connection refused (version 25.7.4.11 (official build)), 192.168.0.107:9181
Poco::Exception. Code: 1000, e.code() = 111, Connection refused (version 25.7.4.11 (official build)), 192.168.0.105:9181
Poco::Exception. Code: 1000, e.code() = 111, Connection refused (version 25.7.4.11 (official build)), 192.168.0.106:9181
Poco::Exception. Code: 1000, e.code() = 111, Connection refused (version 25.7.4.11 (official build)), 192.168.0.107:9181
Poco::Exception. Code: 1000, e.code() = 111, Connection refused (version 25.7.4.11 (official build)), 192.168.0.105:9181
Poco::Exception. Code: 1000, e.code() = 111, Connection refused (version 25.7.4.11 (official build)), 192.168.0.106:9181
Poco::Exception. Code: 1000, e.code() = 111, Connection refused (version 25.7.4.11 (official build)), 192.168.0.107:9181
Poco::Exception. Code: 1000, e.code() = 111, Connection refused (version 25.7.4.11 (official build)), 192.168.0.105:9181

9181端口是ClickHouseKeeper的连接端口，报错原因为ClickHouseServer连接不上ClickHouseKeeper

使用netstat -nap | grep 9181查看9181端口

发现只暴露127.0.0.1本机地址，再使用curl -kv 本机ip:9181

再查看ClickHouseKeeper配置文件，默认配置路径为/etc/clickhouse-keeper/keeper_config.xml

<clickhouse><logger><!--日志配置--></logger> <max_connections>4096</max_connections><keeper_server><tcp_port>9181</tcp_port><listen_host>0.0.0.0</listen_host><!-- Must be unique among all keeper serves --><server_id>1</server_id><!--其他--></keeper_server>

难道是listen_host配置问题？查找官网文档也没说的很详细

官网地址：https://clickhouse.com/docs/zh/guides/sre/keeper/clickhouse-keeper

翻阅代码，发现取的是clickhouse标签下的listen_host标签。

所以正常应该如下配置

之后systemctl restart clickhouse-keeper重启ClickHouseKeeper