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subbiramreddyp
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Re: Save dataframe with header in spark 1.6

by Contributor in Support Questions
‎04-02-2018 06:01 AM
‎04-02-2018 06:01 AM
@Rahul Soni Thanks for the response Rahul, I have doubt regarding spark version in certification are they updated the spark version to 2.xx or still they provide 1.6 only. ... View more

Save dataframe with header in spark 1.6

by Contributor in Support Questions
‎03-29-2018 09:56 AM
‎03-29-2018 09:56 AM
Hi I am going to write HPCD spark certification in that I need to save dataframe to HDFS Doubts: 1.Do I need to store data with header or not If need to store any approach please suggest me because they are not going to give any databricks package without header I can. Thanks in Advance Subbiram ... View more
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Kafka spark structuredstreaming

by Contributor in Support Questions
‎02-22-2018 05:14 AM
‎02-22-2018 05:14 AM
Hi, we are trying to implement kafka with spark structuredstreaming for that we imported the spark-sql-kafka-0-10_2.11-2.0.2 module using spark-shell while executing it shows below error: pplyOrElse(StreamExecution.scala:153) at org.apache.spark.sql.catalyst.trees.TreeNode$anonfun$4.apply(TreeNode.scala:306) at org.apache.spark.sql.catalyst.trees.TreeNode.mapProductIterator(TreeNode.scala:187) at org.apache.spark.sql.catalyst.trees.TreeNode.mapChildren(TreeNode.scala:304) at org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:272) at org.apache.spark.sql.catalyst.trees.TreeNode.transform(TreeNode.scala:256) at org.apache.spark.sql.execution.streaming.StreamExecution.logicalPlan$lzycompute(StreamExecution.scala:153) at org.apache.spark.sql.execution.streaming.StreamExecution.logicalPlan(StreamExecution.scala:147) at org.apache.spark.sql.execution.streaming.StreamExecution.org$apache$spark$sql$execution$streaming$StreamExecution$runBatches(StreamExecution.scala:276) at org.apache.spark.sql.execution.streaming.StreamExecution$anon$1.run(StreamExecution.scala:206) Caused by: java.lang.ClassNotFoundException: org.apache.kafka.common.serialization.ByteArrayDeserializer at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 47 more Exception in thread "main" org.apache.spark.sql.streaming.StreamingQueryException: org/apache/kafka/common/serialization/ByteArrayDeserializer === Streaming Query === Identifier: [id = f230ea99-b84b-44ef-ba49-e8ecb02ae810, runId = 82357c6a-306d-4e6f-96a8-6238302ff59d] Current Committed Offsets: {} Current Available Offsets: {} Current State: INITIALIZING Thread State: RUNNABLE at org.apache.spark.sql.execution.streaming.StreamExecution.org$apache$spark$sql$execution$streaming$StreamExecution$runBatches(StreamExecution.scala:343) at org.apache.spark.sql.execution.streaming.StreamExecution$anon$1.run(StreamExecution.scala:206) Caused by: java.lang.NoClassDefFoundError: org/apache/kafka/common/serialization/ByteArrayDeserializer at org.apache.spark.sql.kafka010.KafkaSourceProvider.createSource(KafkaSourceProvider.scala:74) at org.apache.spark.sql.execution.datasources.DataSource.createSource(DataSource.scala:246) even when we running example using ./runexample command we are facing the same issue. ... View more
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