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[expand - 1 more] - Error: java.io.IOException: java.lang.RuntimeException: ORC split generation failed with exception: java.lang.NoSuchMethodError - Hive - [mail # user]
...Hi,Thanks my Hadoop ishadoop versionWARNING: HADOOP_PREFIX has been replaced by HADOOP_HOME. Using value ofHADOOP_PREFIX.*Hadoop 3.1.0*Source code repository https://github.com/apache/hadoop...
   Author: Mich Talebzadeh , 2019-07-19, 19:04
[expand - 1 more] - Topic migration patterns - Kafka - [mail # user]
...I don't know any other way that manually synching zookeeper ensembles plusbrokers in the new world :(In my example below, I have three node Zookeeper ensemble with 9 Kafkabrokers[image: imag...
   Author: Mich Talebzadeh , 2019-07-11, 15:14
Reading JSON RDD in Spark Streaming - Spark - [mail # user]
...Hi,I have prices coming through Kafka in the following formatkey,{JSON data}The key is needed as part of data post to NoSQL database like Aerospike.The following is record of topic from Kafk...
   Author: Mich Talebzadeh , 2019-06-18, 21:42
[expand - 1 more] - Issue facing, Aerospike Connect for Kafka - Inbound - Kafka - [mail # user]
...Hi,I sorted this one out.It was to do with the format of published prices.Regards,Dr Mich TalebzadehLinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8P...
   Author: Mich Talebzadeh , 2019-06-15, 22:24
hcatalog and hiveserver2 - Hive - [mail # user]
...Spark uses HiveContext to access Hive tables on the same Hadoop clusterthat both Hive and Spark are running.Let us look at an example of code below that used Spark as an ETL tool  toget...
   Author: Mich Talebzadeh , 2019-05-24, 17:35
Any HIVE DDL statement takes minutes to execute - Hive - [mail # user]
...Dr Mich TalebzadehLinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw*http://talebzadehmich.wordpress.com*Disclaimer:* Use it at your own risk. Any an...
   Author: Mich Talebzadeh , 2019-05-16, 08:20
[expand - 1 more] - Spark on yarn - application hangs - Spark - [mail # user]
...sure NP.I meant these topics[image: image.png]Have a look at this article of minehttps://www.linkedin.com/pulse/real-time-processing-trade-data-kafka-flume-spark-talebzadeh-ph-d-/under secti...
   Author: Mich Talebzadeh , 2019-05-10, 17:28
[expand - 1 more] - This MapR-DB Spark Connector with Secondary Indexes - Spark - [mail # user]
...I am at loss why one needs Spark to load one row from the DB as in theexample belowval data = sparkSession  .loadFromMapRDB("/user/mapr/tables/data", schema)  .filter("uid = '101'"...
   Author: Mich Talebzadeh , 2019-05-04, 23:03
spark hive concurrency - Spark - [mail # user]
...That assertion seems to be true. Spark does not seem to hold locks whendoing DML on a Hive table.I cannot recall whether I checked it in previous versions of Spark.However, in Spark  2....
   Author: Mich Talebzadeh , 2019-04-29, 18:45
Kafka Topics - Kafka - [mail # user]
...Hi Ashock,Check this article of mineReal Time Processing of Trade Data with Kafka, Flume, Spark, Hbase andMongoDBhttps://www.linkedin.com/pulse/real-time-processing-trade-data-kafka-flume-sp...
   Author: Mich Talebzadeh , 2019-04-25, 17:24