String url = "jdbc:phoenix:<192.168.10.102>:<2181>:<zookeeper-znode-parent>";
时间: 2024-04-27 09:20:37 浏览: 3
这是一个 JDBC 连接 Phoenix 数据库的 URL 格式,其中 `<192.168.10.102>` 是 Phoenix 的集群节点 IP 地址,`<2181>` 是 ZooKeeper 的端口号,`<zookeeper-znode-parent>` 是 ZooKeeper 的 Znode 父级路径。通过这个 URL,可以使用 JDBC API 连接 Phoenix 数据库进行数据的读写操作。
相关问题
编辑 core-site.xml: 在<configuration>节点内添加以下配置项:
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
<property>
<name>io.file.buffer.size</name>
<value>131072</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/usr/local/hadoop/tmp</value>
</property>
<property>
<name>ha.zookeeper.quorum</name>
<value>zk1.example.com:2181,zk2.example.com:2181,zk3.example.com:2181</value>
</property>
<property>
<name>ha.zookeeper.parent-znode</name>
<value>/hadoop-ha</value>
</property>
以上是编辑 core-site.xml 配置文件时需要添加的配置项。第一个配置项是指定HDFS的默认文件系统地址为hdfs://localhost:9000,这是Hadoop分布式文件系统的默认地址。第二个配置项是设置文件缓冲区大小为131072字节,这可以提高文件读写的效率。第三个配置项是指定Hadoop的临时目录为/usr/local/hadoop/tmp,这是Hadoop存储临时文件的位置。第四个和第五个配置项是用于配置Hadoop的高可用性(HA)功能的,分别指定了ZooKeeper的地址和父节点路径。
编辑 core-site.xml 配置文件时需要注意格式的正确性,确保每个配置项都在<property>节点下,并且有<name>和<value>子节点。添加这些配置项可以让Hadoop集群在运行时更加高效和稳定。
version: '3' services: zookeeper: image: wurstmeister/zookeeper:latest ports: - 12181:2181 container_name: zookeeper tty: true restart: alwaysversion: '3' services: kafka01: image: wurstmeister/kafka:latest ports: - 19092:9092 environment: - KAFKA_BROKER_ID=0 - KAFKA_ZOOKEEPER_CONNECT=192.168.233.129:12181 - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://192.168.233.129:19092 - KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9092 container_name: kafka01 tty: true restart: always 这两天帮我整合在一起
Certainly! Here's the combined `docker-compose.yml` file for both ZooKeeper and Kafka:
```yaml
version: '3'
services:
zookeeper:
image: wurstmeister/zookeeper:latest
ports:
- 12181:2181
container_name: zookeeper
tty: true
restart: always
kafka01:
image: wurstmeister/kafka:latest
ports:
- 19092:9092
environment:
- KAFKA_BROKER_ID=0
- KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
- KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka01:19092
- KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9092
container_name: kafka01
depends_on:
- zookeeper
tty: true
restart: always
```
In this configuration, both ZooKeeper and Kafka are defined as separate services within the same `docker-compose.yml` file. The Kafka service depends on the ZooKeeper service using the `depends_on` keyword. You can save this content into a file named `docker-compose.yml` and run `docker-compose up -d` to start both containers.