I am trying to use Spark Streaming with MapR Streams. Streaming application is enable checkoonting. I can execute Streaming application,but not restore from checkpoint with following exception. org.apache.kafka.common.errors.UnknownTopicOrPartitionException :No such file or directory (2) Could not seek. And I found the following ERROR.… Show more
Log into the MapR Community to add to course discussions. Connect with and learn from other students as well as MapR subject matter experts. Course Discussions Essentials (ESS 100) Lesson 1 – Describe your big data problem Essentials (ESS 200) – What features are important for your big data projects? Find all course discussions: MapR…
Think about the 3 Vs of big data: volume, velocity, and variety. What features make your data difficult to store, process, or describe? Share specific stories of how you have struggled with a big data problem.
Velocity and Volume is the main concern while talking about big data. Lets talk about internet facing enterprise applications, accessing by millions of users globally that generates huge amount of data in fast pace. Here the data could be of type application logs, transnational data etc. Many times due to unavailability of big data processing…
A great deal of the time while using Spark streaming, the streaming console (the one you get by going to "Application Master" in the resource manager and clicking "Streaming") becomes unresponsive for large periods of time. It always comes back eventually sometimes after a minute or two. It can make it hard to analyze what's currently happening… Show more
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Hi, I'm using MapRSandBox 5.2 on Microsoft Azure and I create a CentOs VM I need to use it as a mapr gateway. Please if there is any tutorial Step by step, cause I tried so many things but no success: I already Installed all this packages and change the mapr-clusters.config ... yum -y install mapr-core.x86_64 mapr-core-internal.x86_64… Show more
Hi, I have MAPR client installed on a windows server and I am able to programmatically interact with a MAPR Cluster via this configuration. I have now installed Apache Spark Client 2.1.0 on the windows server and setup the applicable environment variables. I am supplying the following in the code setMaster("yarn")… Show more
Currently I am using HBase Python opensource library - Happybase to get Hbase tables from Linux HBase server (say, Server A) into Pandas data frames on my client machine (say, Server B). I have installed Happybase and Hbase Client on ServerB, and can use Hbase shell to query tables in ServerA. I have also started the Thrift server there by… Show more
Spark History Server, Job History Server, Resource Manager and Job Tracker -- None of these job view links are working.
Hello Everyone, Issue with the below job view portals, all these tabs is blank (meaning, no job information) even when there are jobs running in the cluster. 1) My Spark History Server, 2) Job History Server, 3) Resource Manager and 4) Job Tracker I have had this issue from the very start. None of my monitoring links are showing any… Show more
I am looking to create a sensor setup where I can have multiple dockerized bro instances controlled in such a way that I can start them point them at an interface, and get data. There is kafka integration, but it appears to be using the Golang github.com/Shopify/sarama/tools/kafka-console-consumer Repo... how could I get this to work with… Show more
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Hi, I have recently attempted to test Kafka Connect on Mapr without any success Environment: Mapr-Sandbox-For-Hadoop-5.2.1 I installed all required components(http://maprdocs.mapr.com/home/AdvancedInstallation/InstallingKafka.html): mapr-kafka-0.9.0 mapr-kafka-rest mapr-client mapr-kafka-connect-jdbc mapr-kafka-connect-hdfs Created a… Show more