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Caused by java net connectexception connection refused in spark

If you are trying load any file from HDFS, make sure you specify the correct port in the file path, eg. hdfs: / / localhost: 9000/ testpath/ file. Spark uses random ports for internal communications between driver and executors, which might be blocked by your firewall. Try opening ports between your cluster nodes. You can also use fixed port using this if you are strict. 17/ 12/ 30 03: 46: 09 ERROR SparkContext: Error initializing SparkContext. ConnectException: Connection refused; For more details see:. main( SparkSubmit. scala) Caused by: java. Executors$ RunnableAdapter. java: 471) at java. ConnectException: Connection refused: cluster3/ 192. actually namenode is running in a different port which I found from core- site.

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  • Video:Caused connectexception spark

    Connection connectexception refused

    It works for me after using the port 54310. < property> < name> fs. name< / name> < value> hdfs: / / localhost: 54310< / value>. execute( CallCommand. java: 79) at py4j. GatewayConnection. run( GatewayConnection. java: 207) at java. java: 745) Caused by: java. ConnectException: Connection refused at java. I know there are many threads already on ' spark streaming connection refused' issues.

    receiver for stream 0 from 192. 1: : 13: 08 WARN ReceiverSupervisorImpl: 92 - Restarting receiver with delay ms: Error connecting to localhost: 7777 java. ConnectException: Connection refused. Apache Spark uses the Hadoop client libraries for file access when you use sc. This makes it possible to use an hdfs: / / or. Given that you are using the official Spark Java example: public static void main( String[ ] args). ThreadPoolExecutor$ Worker. run( ThreadPoolExecutor. java: 617) at java. ConnectException: Connection refused: localhost/ 127. It means that remote worker. Editing / usr/ local/ hadoop/ etc/ hadoop/ hdfs- site.

    0 instead of localhost solved the problem: < property> < name> fs. name< / name> < value > hdfs: / / 0. 0: 8020< / value> < / property>.