Error: Could not open client transport with JDBC Uri: jdbc:hive2://localhost:10000: java.net.ConnectException: 拒绝连接
时间: 2023-11-06 14:06:26 浏览: 24
这个错误通常是因为HiveServer2未启动或无法连接到HiveServer2导致的。请确保HiveServer2正在运行并且可以从当前机器连接到它。您可以尝试通过以下命令来检查HiveServer2是否正在运行:
```
sudo service hive-server2 status
```
如果它没有运行,您可以尝试启动它:
```
sudo service hive-server2 start
```
如果问题仍然存在,请检查HiveServer2的日志文件,通常可以在`/var/log/hive`目录下找到。日志文件中可能会提供有关连接问题的更多详细信息。
相关问题
Could not open client transport with JDBC Uri: jdbc:hive2://hadoop01:10000: java.net.ConnectException: Connection refused: connect
引用\[1\]:22/04/10 01:13:24 \[main\]: WARN jdbc.HiveConnection: Failed to connect to hadoop102:10000 Error: Could not open client transport with JDBC Uri: jdbc:hive2://hadoop102:10000: Failed to open new session: java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): User: fei is not allowed to impersonate fei (state=08S01,code=0) 。 引用\[2\]:Error: Could not open client transport with JDBC Uri: jdbc:hive2://192.168.136.128:10000/mydb/: Failed to open new session: java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): User: root is not allowed to impersonate root (state=08S01,code=0) 。 引用\[3\]:在安装hive的时候,启动hiveserver2后,启动beeline客户端报错如下: Could not open client transport with JDBC Uri: jdbc:hive2://hadoop101:10000: Failed to open new session: java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): User: root is not allowed to impersonate root (state=08S01,code=0) 产生这一问题的原因是,在Hadoop集群配置文件,hdfs-site.xml和core-site.xml没有进行用户相关的配置。 解决方式如下: 1 首先需要关闭hive的元数据服务和hiveserver2,然后关闭Hadoop集群 2 vim /hadoop-3.1.3/etc/hadoop/hdfs-site.xml 添加下面配置内容 <property> <name>dfs.webhdfs.enabled</name> <value>true</value> </property> 。
问题:Could not open client transport with JDBC Uri: jdbc:hive2://hadoop01:10000: java.net.ConnectException: Connection refused: connect
回答: 这个问题的原因是连接被拒绝,可能是因为Hadoop集群中的Hive服务没有启动或者配置有误。你可以尝试以下解决方式:
1. 确保Hadoop集群中的Hive服务已经启动。可以通过检查Hive的日志文件或者使用命令行工具来确认。
2. 检查连接的JDBC URI是否正确,包括主机名、端口号和数据库名称等信息。
3. 确保网络连接正常,没有被防火墙或其他安全设置阻止。
4. 检查Hadoop集群的配置文件,特别是hdfs-site.xml和core-site.xml,确保其中的用户相关配置正确设置。
如果以上方法都没有解决问题,你可以尝试重新配置Hadoop集群和Hive服务,确保配置正确无误。
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Error: Could not open client transport with JDBC Uri: jdbc:hive2://hadoop01:10000: java.net.ConnectException: 拒绝连接 (state=08S01,code=0)
这个错误提示表明无法连接到JDBC Uri: jdbc:hive2://hadoop01:10000,导致连接被拒绝。解决这个问题的方法是在hadoop的配置文件core-site.xml中添加以下配置信息:
```
hadoop.proxyuser.hc.hosts *
hadoop.proxyuser.hc.groups *
```
其中"hc"是连接beeline的用户。这样配置后,可以再次尝试连接hiveserver2。