我为单节点群集安装了Rapidminer，Radoop，Hadoop和Hive，并执行了Radoop Connection并得到了这样的错误。
[Jan 28, 2017 12:28:27 AM]: Connection test for 'Kanni' started.
[Jan 28, 2017 12:28:27 AM]: Using Radoop version 7.3.0.
[Jan 28, 2017 12:28:27 AM]: Running tests: [Hive connection, Fetch dynamic settings, Java version, HDFS, MapReduce, Radoop temporary directory, MapReduce staging directory, Spark assembly jar existence, UDF jar upload, Create permanent UDFs]
[Jan 28, 2017 12:28:27 AM]: Running test 1/10: Hive connection
[Jan 28, 2017 12:28:27 AM]: Hive server 2 connection (localhost:10000) test started.
[Jan 28, 2017 12:28:28 AM] SEVERE: Test failed: Hive connection
[Jan 28, 2017 12:28:28 AM]: Cleaning after test: Hive connection
[Jan 28, 2017 12:28:28 AM]: Total time: 1.031s
[Jan 28, 2017 12:28:28 AM] SEVERE: java.sql.SQLException: Could not open client transport with JDBC Uri: jdbc:hive2://localhost:10000/default:
java.net.ConnectException: Connection refused: connect
[Jan 28, 2017 12:28:28 AM] SEVERE: Hive server 2 connection test failed. Please check that the server/daemon runs and is accessible on the address and port you specified.
[Jan 28, 2017 12:28:28 AM] SEVERE: Test failed: Hive connection
[Jan 28, 2017 12:28:28 AM] SEVERE: Connection test for 'Kanni' failed.
任何人都可以帮助我摆脱这个问题！
答案 0 :(得分：0)
检查您的端口是否需要为Radoop和RapidMiner之间的连接打开。 （NameNode，DataNode ...）
Hadoop在与RapidMiner相同的系统上运行，还是在像Azure这样的云中运行？ 您可以与我们分享您的日志，以便我们仔细查看吗？