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[expand - 5 more] - Spark reading from Hbase throws java.lang.NoSuchMethodError: org.json4s.jackson.JsonMethods - HBase - [mail # user]
...Hi,Does anyone has any more suggestion for the error I reported below please?Thanks,Mich*Disclaimer:* Use it at your own risk. Any and all responsibility for anyloss, damage or destruction o...
   Author: Mich Talebzadeh , 2020-02-23, 19:13
[expand - 1 more] - Running HBase on Hadoop 3.1, was Re: [ANNOUNCE] Apache HBase 2.1.9 is now available for download - HBase - [mail # user]
...Thanks Nick.My bad. One of the nodes holding region server did not have Snappy packageinstalled.yum install snappy snappy-devel did the trickRegards,Dr Mich TalebzadehLinkedIn * https://www....
   Author: Mich Talebzadeh , 2020-02-21, 22:34
[expand - 1 more] - [ANNOUNCE] Apache HBase 2.1.9 is now available for download - HBase - [mail # user]
...Thank you.In your points belowIf you want to run HBase on top of a 3.1.x HDFS cluster, you can just usethe binaries, hadoop 2.8.5 client can communicate with 3.1.x server.If you want HBase t...
   Author: Mich Talebzadeh , 2020-02-20, 11:20
[expand - 5 more] - How to insert Json records from Flume into Hbase with Kafka source - Flume - [mail # user]
...Hi,This regex seems to work*JsonAgent.sinks.Hbase-sink.serializer.regex=[^_]*"(.+).{1},(.+),(.+),(.+).{1}*Remember we were getting the below as ROW (incorrect) beforehand{"rowkey":"eff0bdc7-...
   Author: Mich Talebzadeh , 2020-02-16, 20:26
[expand - 2 more] - How to insert Json records from Flume into Hbase table - HBase - [mail # user]
...Thanks Pedro. The mention of*org.apache.flume.sink.hbase.RegexHbaseEventSerializer* was very useful.This works# Describing/Configuring the sinkJsonAgent.channels.hdfs-channel-1.type = memory...
   Author: Mich Talebzadeh , 2020-02-14, 20:25
[expand - 1 more] - OrderBy Year and Month is not displaying correctly - Spark - [mail # user]
...*The distinct transformation does not preserve order, you need to distinctfirst, then orderby.*Thanks Enrico. You are correct. Worked fine!joint_accounts.      select(year(col...
   Author: Mich Talebzadeh , 2020-01-06, 12:05
Spark streaming when a node or nodes go down - Spark - [mail # user]
...Hi,I know this is a basic question but someone enquired about it and I justwanted to fill my knowledge gap so to speak.Within the context of Spark streaming, the RDD is created from the inco...
   Author: Mich Talebzadeh , 2019-12-11, 10:28
kafka connection from docker - Kafka - [mail # user]
...I do not understand this.You have on a physical host running zookeeper locally and a broker runningas well. These are using default physical host portslike 2181, 9092 etc.Then you have insta...
   Author: Mich Talebzadeh , 2019-10-17, 21:36
org.apache.spark.util.SparkUncaughtExceptionHandler - Spark - [mail # user]
...Hi Nimmi,Can you send us the spark parameters with overhead. assuming you arerunning with yarnExample[4] - 864GB--num-executors 32--executor-memory 21G--executor-cores 4--conf spark.yarn.exe...
   Author: Mich Talebzadeh , 2019-10-10, 21:10
Google Cloud and Spark in the docker consideration for rreal time streaming data - Spark - [mail # user]
...Hi,We have designed an efficient trading system that runs on cluster of threenodes in Google Cloud Platform (GCP).Each node runs one Zookeeper and one Kafka broker. So in total we havethree ...
   Author: Mich Talebzadeh , 2019-09-23, 19:05