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https://issues.apache.org/jira/browse/SPARK-28336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon updated SPARK-28336:
---------------------------------
Labels: kafka (was: beginner kafka newbie)
> Tried running same code in local machine in IDE pycharm it running fine but
> issue arises when i setup all on EC2 my RDD has Json Value and convert it to
> data frame and show dataframe by Show method it fails to show my data frame.
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-28336
> URL: https://issues.apache.org/jira/browse/SPARK-28336
> Project: Spark
> Issue Type: Bug
> Components: Deploy, DStreams, EC2, PySpark, Spark Submit
> Affects Versions: 2.4.3
> Environment: Using EC2 Ubuntu 18.04.2 LTS
> Spark version : Spark 2.4.3 built for Hadoop 2.7.3
> Kafka version : kafka_2.12-2.2.1
> Reporter: Aditya
> Priority: Minor
> Labels: kafka
>
> I am a beginner to pyspark and I am creating a pilot project in spark i used
> pycharm IDE for developing my project and it runs fine on my IDE Let me
> explain my project I am producing JSON in Kafka topic and consuming topic in
> spark and converting RDD VALUE(which is i JSON) converting to data frame
> using this method (productInfo = sqlContext.read.json(rdd)) and working
> perfectly on my local machine after converting RDD to DataFrame I am
> displaying that DataFrame to my console using .Show() method and working fine.
> But my problem arises when I setup all this(Kafka,apache-spark) in EC2(Ubuntu
> 18.04.2 LTS) and tried to execute using spark-submit console stop when it
> reached my show() method and display nothing again starts and stops at show()
> method I can't figure out what is error not showing any error in console and
> also check if my data is coming in RDD or not it is in RDD
> {color:#ff0000}My Code: {color}
> {code:java}
> # coding: utf-8
> from pyspark import SparkContext
> from pyspark import SparkConf
> from pyspark.streaming import StreamingContext
> from pyspark.streaming.kafka import KafkaUtils
> from pyspark.sql import Row, DataFrame, SQLContext
> import pandas as pd
> def getSqlContextInstance(sparkContext):
> if ('sqlContextSingletonInstance' not in globals()):
> globals()['sqlContextSingletonInstance'] = SQLContext(sparkContext)
> return globals()['sqlContextSingletonInstance']
> def process(time, rdd):
> print("========= %s =========" % str(time))
> try:
> #print("--------------Also cross check my data is present in rdd I
> checked by printing ----------------")
> #results = rdd.collect()
> #for result in results:
> #print(result)
> # Get the singleton instance of SparkSession
> sqlContext = getSqlContextInstance(rdd.context)
> productInfo = sqlContext.read.json(rdd)
> # problem comes here when i try to show it
> productInfo.show()
> except:
> pass
> if _name_ == '_main_':
> conf = SparkConf().set("spark.cassandra.connection.host", "127.0.0.1")
> sc = SparkContext(conf = conf)
> sc.setLogLevel("WARN")
> sqlContext = SQLContext(sc)
> ssc = StreamingContext(sc,10)
> kafkaStream = KafkaUtils.createStream(ssc, 'localhost:2181',
> 'spark-streaming', {'new_topic':1})
> lines = kafkaStream.map(lambda x: x[1])
> lines.foreachRDD(process)
> #lines.pprint()
> ssc.start()
> ssc.awaitTermination()
> {code}
>
> {color:#ff0000}My console:{color}
> {code:java}
> ./spark-submit ReadingJsonFromKafkaAndWritingToScylla_CSV_Example.py
> 19/07/10 11:13:15 WARN NativeCodeLoader: Unable to load native-hadoop
> library for your platform... using builtin-java classes where applicable
> Using Spark's default log4j profile:
> org/apache/spark/log4j-defaults.properties
> 19/07/10 11:13:15 INFO SparkContext: Running Spark version 2.4.3
> 19/07/10 11:13:15 INFO SparkContext: Submitted application:
> ReadingJsonFromKafkaAndWritingToScylla_CSV_Example.py
> 19/07/10 11:13:15 INFO SecurityManager: Changing view acls to: kafka
> 19/07/10 11:13:15 INFO SecurityManager: Changing modify acls to: kafka
> 19/07/10 11:13:15 INFO SecurityManager: Changing view acls groups to:
> 19/07/10 11:13:15 INFO SecurityManager: Changing modify acls groups to:
> 19/07/10 11:13:15 INFO SecurityManager: SecurityManager: authentication
> disabled; ui acls disabled; users with view permissions: Set(kafka); groups
> with view permissions: Set(); users with modify permissions: Set(kafka);
> groups with modify permissions: Set()
> 19/07/10 11:13:16 INFO Utils: Successfully started service 'sparkDriver' on
> port 41655.
> 19/07/10 11:13:16 INFO SparkEnv: Registering MapOutputTracker
> 19/07/10 11:13:16 INFO SparkEnv: Registering BlockManagerMaster
> 19/07/10 11:13:16 INFO BlockManagerMasterEndpoint: Using
> org.apache.spark.storage.DefaultTopologyMapper for getting topology
> information
> 19/07/10 11:13:16 INFO BlockManagerMasterEndpoint:
> BlockManagerMasterEndpoint up
> 19/07/10 11:13:16 INFO DiskBlockManager: Created local directory at
> /tmp/blockmgr-33f848fe-88d7-4c8f-8440-8384e094c59c
> 19/07/10 11:13:16 INFO MemoryStore: MemoryStore started with capacity 366.3
> MB
> 19/07/10 11:13:16 INFO SparkEnv: Registering OutputCommitCoordinator
> 19/07/10 11:13:16 WARN Utils: Service 'SparkUI' could not bind on port 4040.
> Attempting port 4041.
> 19/07/10 11:13:16 WARN Utils: Service 'SparkUI' could not bind on port 4041.
> Attempting port 4042.
> 19/07/10 11:13:16 WARN Utils: Service 'SparkUI' could not bind on port 4042.
> Attempting port 4043.
> 19/07/10 11:13:16 WARN Utils: Service 'SparkUI' could not bind on port 4043.
> Attempting port 4044.
> 19/07/10 11:13:16 WARN Utils: Service 'SparkUI' could not bind on port 4044.
> Attempting port 4045.
> 19/07/10 11:13:16 WARN Utils: Service 'SparkUI' could not bind on port 4045.
> Attempting port 4046.
> 19/07/10 11:13:16 INFO Utils: Successfully started service 'SparkUI' on port
> 4046.
> 19/07/10 11:13:16 INFO SparkUI: Bound SparkUI to 0.0.0.0, and started at
> [http://ip-172-31-92-134.ec2.internal:4046|http://ip-172-31-92-134.ec2.internal:4046/]
> 19/07/10 11:13:16 INFO Executor: Starting executor ID driver on host
> localhost
> 19/07/10 11:13:16 INFO Utils: Successfully started service
> 'org.apache.spark.network.netty.NettyBlockTransferService' on port 34719.
> 19/07/10 11:13:16 INFO NettyBlockTransferService: Server created on
> ip-172-31-92-134.ec2.internal:34719
> 19/07/10 11:13:16 INFO BlockManager: Using
> org.apache.spark.storage.RandomBlockReplicationPolicy for block replication
> policy
> 19/07/10 11:13:16 INFO BlockManagerMaster: Registering BlockManager
> BlockManagerId(driver, ip-172-31-92-134.ec2.internal, 34719, None)
> 19/07/10 11:13:16 INFO BlockManagerMasterEndpoint: Registering block manager
> ip-172-31-92-134.ec2.internal:34719 with 366.3 MB RAM, BlockManagerId(driver,
> ip-172-31-92-134.ec2.internal, 34719, None)
> 19/07/10 11:13:16 INFO BlockManagerMaster: Registered BlockManager
> BlockManagerId(driver, ip-172-31-92-134.ec2.internal, 34719, None)
> 19/07/10 11:13:16 INFO BlockManager: Initialized BlockManager:
> BlockManagerId(driver, ip-172-31-92-134.ec2.internal, 34719, None)
> 19/07/10 11:13:17 WARN AppInfo$: Can't read Kafka version from MANIFEST.MF.
> Possible cause: java.lang.NullPointerException
> 19/07/10 11:13:18 WARN RandomBlockReplicationPolicy: Expecting 1 replicas
> with only 0 peer/s.
> 19/07/10 11:13:18 WARN BlockManager: Block input-0-1562757198000 replicated
> to only 0 peer(s) instead of 1 peers
> {code}
> {color:#ff0000}This is when I am not producing in data in my kafka
> topic{color}
> {code:java}
> ========= 2019-07-10 11:13:20 =========
> ---------------------in function procces----------------------
> -----------------------before printing----------------------
> ========= 2019-07-10 11:13:30 =========
> ---------------------in function procces----------------------
> -----------------------before printing----------------------
> ++
>
> ++
> ++
> ------------------------after printing-----------------------
> ========= 2019-07-10 11:13:40 =========
> ---------------------in function procces----------------------
> -----------------------before printing----------------------
> ++
>
> ++
> ++
> ------------------------after printing-----------------------
> ========= 2019-07-10 11:15:40 =========
> ---------------------in function procces----------------------
> -----------------------before printing----------------------
> ++
>
> ++
> ++
> ------------------------after printing-----------------------
> 19/07/10 11:15:47 WARN RandomBlockReplicationPolicy: Expecting 1 replicas
> with only 0 peer/s.
> 19/07/10 11:15:47 WARN BlockManager: Block input-0-1562757347200 replicated
> to only 0 peer(s) instead of 1 peers
> {code}
> {color:#ff0000}This is when I start producing my data in kafka topic{color}
> {code:java}
> ========= 2019-07-10 11:15:50 =========
> ---------------------in function procces----------------------
> -----------------------before printing----------------------
> 19/07/10 11:15:52 WARN RandomBlockReplicationPolicy: Expecting 1 replicas
> with only 0 peer/s.
> 19/07/10 11:15:52 WARN BlockManager: Block input-0-1562757352200 replicated
> to only 0 peer(s) instead of 1 peers
> 19/07/10 11:15:57 WARN RandomBlockReplicationPolicy: Expecting 1 replicas
> with only 0 peer/s.
> 19/07/10 11:15:57 WARN BlockManager: Block input-0-1562757357200 replicated
> to only 0 peer(s) instead of 1 peers
> ========= 2019-07-10 11:16:00 =========
> ---------------------in function procces----------------------
> -----------------------before printing----------------------
> 19/07/10 11:16:02 WARN RandomBlockReplicationPolicy: Expecting 1 replicas
> with only 0 peer/s.
> 19/07/10 11:16:02 WARN BlockManager: Block input-0-1562757362200 replicated
> to only 0 peer(s) instead of 1 peers
> 19/07/10 11:16:07 WARN RandomBlockReplicationPolicy: Expecting 1 replicas
> with only 0 peer/s.
> 19/07/10 11:16:07 WARN BlockManager: Block input-0-1562757367400 replicated
> to only 0 peer(s) instead of 1 peers
> ========= 2019-07-10 11:16:10 =========
> ---------------------in function procces----------------------
> -----------------------before printing----------------------
> 19/07/10 11:16:12 WARN RandomBlockReplicationPolicy: Expecting 1 replicas
> with only 0 peer/s.
> 19/07/10 11:16:12 WARN BlockManager: Block input-0-1562757372400 replicated
> to only 0 peer(s) instead of 1 peers
> 19/07/10 11:16:17 WARN RandomBlockReplicationPolicy: Expecting 1 replicas
> with only 0 peer/s.
> 19/07/10 11:16:17 WARN BlockManager: Block input-0-1562757377400 replicated
> to only 0 peer(s) instead of 1 peers
> {code}
> I don't how to figure out can anyone help me really appreciated.
> Thank you
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