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Posted to issues@spark.apache.org by "Patrick Wendell (JIRA)" <ji...@apache.org> on 2015/04/21 20:06:01 UTC
[jira] [Resolved] (SPARK-6995) Spark driver program throws
exception cant get Master Kerberose principal for use as renewer
[ https://issues.apache.org/jira/browse/SPARK-6995?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Patrick Wendell resolved SPARK-6995.
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Resolution: Invalid
Can you reach out on the user list with this question? Thanks!
> Spark driver program throws exception cant get Master Kerberose principal for use as renewer
> --------------------------------------------------------------------------------------------
>
> Key: SPARK-6995
> URL: https://issues.apache.org/jira/browse/SPARK-6995
> Project: Spark
> Issue Type: Question
> Components: Java API
> Affects Versions: 1.1.0
> Environment: Linux,IntelliJ
> Reporter: Umesh Kacha
>
> I am having thousands of files residing in HDFS which I would like to read/process/store back to HDFS using Spark. I have the following Java Spark driver program:
> SparkConf sparkConf = new SparkConf().setAppName("MyApp").setMaster("spark://myhost1.com");
> JavaSparkContext sc = new JavaSparkContext(sparkConf);
> JavaRDD<MySchemaPOJO> schemaRDD = sc.textFile("hdfs://path/to/file").map(
> new Function<String,MySchemaPOJO>() {
> public MySchemaPOJO call(String line) throws Exception {
> String[] fields = line.split("\\t");
> MySchemaPOJO schemaPOJO = new MySchemaPOJO();
> //set required fields on POJO
> return schemaPOJO;
> }
> });
> System.out.println("POJO list are " + schemaRDD.collect());
> schemaRDD.saveAsTextFile("hdfs://path/to/save/file");
> sc.stop();
> I have started Master/Worker on myhost1.com and I am running this driver program on IntelliJ on another host myhost2.com. When I start driver program everything works fine until schemaRDD.collect() and it throws exception as
> Exception in thread 'main' java.io.IOException : Cant get Master
> Kerberose principal to use as renewer.
> I did kinit on both host where I am running driver and master/worker. My driver program can connect to Master also only when actual actions gets called on RDD it throws above exception. Please guide I am new to Spark. Thanks in advance.
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