Spark - GraphX: mapReduceTriplets vs aggregateMessages

Spark - GraphX: mapReduceTriplets vs aggregateMessages

By : user2952240
Date : November 19 2020, 12:41 AM
With these it helps I am running by a tutorial http://ampcamp.berkeley.edu/big-data-mini-course/graph-analytics-with-graphx.html , Probably you need something like this:
code :
val oldestFollower: VertexRDD[(String, Int)] = userGraph.aggregateMessages[(String, Int)]
    // For each edge send a message to the destination vertex with the attribute of the source vertex
    sendMsg = { triplet => triplet.sendToDst(triplet.srcAttr.name, triplet.srcAttr.age) },
   // To combine messages take the message for the older follower
    mergeMsg = {(a, b) => if (a._2 > b._2) a else b}

Share : facebook icon twitter icon
applying a function to graph data using mapReduceTriplets in spark and graphx

applying a function to graph data using mapReduceTriplets in spark and graphx

By : Doubi
Date : March 29 2020, 07:55 AM
I wish this help you I think you want to use GraphOps.collectNeighbors instead of either mapReduceTriplets or aggregateMessages.
collectNeighbors will give you an RDD with, for every VertexId in your graph, the connected nodes as an array. Just reduce the Array based on your needs. Something like:
code :
val countsRdd = graph.collectNeighbors(EdgeDirection.Either)
  .map{ case (vid,t) => {
    val neighbors = t._1
    val nodeAttr = t._2
    neighbors.map(_._2).filter( <add logic here> ).size
how to add spark core and mllib and graphx dependency at the same time to spark project in scala IDE

how to add spark core and mllib and graphx dependency at the same time to spark project in scala IDE

By : Mohsen It
Date : March 29 2020, 07:55 AM
will help you My Internet connection was slow and Scala IDE couldn't access to dependencies. I have added all dependencies under 1.6.1 version. these are running well now.
Spark GraphX spark-shell vs spark-submit performance differences

Spark GraphX spark-shell vs spark-submit performance differences

By : Chien Nguyen
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I figured this out a while back and just bumped into my question again. So thought would update with how I fixed it. The issue was not a difference between spark-submit and spark-shell but difference in the code structure we were executing.
In the Shell i was unbundling the code and executing it line by line, this resulted in the code generated by Spark being fast and efficient.
spark sbt with graphx

spark sbt with graphx

By : Keith
Date : March 29 2020, 07:55 AM
With these it helps I am new to scala and sbt thing, so I am not sure why I am getting the error. , This is version mismatch. You use:
Spark 2.2 GraphX 1.2.
how to get two-hop neighbors in spark-graphx?

how to get two-hop neighbors in spark-graphx?

By : LizB
Date : March 29 2020, 07:55 AM
wish helps you You can succinctly express this using GraphFrames library. First you have to include required package. For with Spark 2.0 and Scala 2.11 you can add
Related Posts Related Posts :
  • How to show downshift + popper on top of material-ui dialog?
  • jQuery file upload and RequireJS configuration
  • How to send the result of a select query to a message body of a mail in oracle 10G
  • Worklight common build failing with "Failed to update main HTML file"
  • pg_listening_channels() is not returning the channels name
  • Asset management in ZF2
  • Does the Firefox add-on sdk allow direct modification of the http response byte stream?
  • How to remove menu hardware key from your android app
  • Identifying programming language
  • Use shell commands to find Makefile.am in configure.ac
  • Mono Compiler as Service or Microsoft Roselyn for a vb parser
  • How to add extra root nodes for not well formed XML structure?
  • which Uncrustify setting replaces blank lines with indenting spaces?
  • mac OSX Lion Homebrew install curl (77)
  • In Project Euler 47, why is 2^2 considered a prime number distinct from 2?
  • browserstack requesting localhost:45691
  • What was the real reason why Google is chosing RenderScript instead of OpenCL?
  • Mandrill Inbound Email routing
  • Prevent checkElementIndex() Guava function from concatenating additional response to existing error message
  • Arduino and Raspberry Pi Serial communication + multiple variables
  • convert a 960 grid based site to responsive
  • Should it be possible to have more than one DocuSign account (DEMO) with the same email address?
  • Is it possible to limit ammount of concurrent builds in Travis-CI
  • Selecting languages with specific ISO code
  • Deprecated vs Unsupported SDK
  • Verifying ClearCase files have been labeled properly
  • What's the difference between "Bag of Words" and "Bag of features" in computer vision?
  • Is there a way to tell Serde to use a struct field as a map's key?
  • ld:framework not found sfml
  • nice, go-idiomatic way of using a shared map
  • IzPack ChmodInstallerListener.jar
  • Breaking down tasks of user stories between developer and QA
  • Dropwizard service not starting properly
  • How to override devise invitable actions
  • Coded UI. How can I change TimeOut in Find() method
  • Why when I click on the update button error TypeError: r is undefined happen?
  • Visio Component Diagram - Required Interface
  • Lucene: fast(er) to get docs in bulk?
  • can I use windows 8 font (Segoe UI)for my web app?
  • Using Flask Session in Gevent Socket-IO
  • Difference between recommended and suggested cookbooks
  • Dynamic Forms (Formsets) in Flask / WTForms?
  • Image Servlet doesn't want to show image in browser (FireFox, IE..) but in Eclipse browser works?
  • Logback - how to get each logger logging to a separate log file?
  • In Crystal Reports, how do I keep a row from printing if the value is null?
  • iOS 6 Audio multi-route - use external microphone AND internal speaker simultaneously
  • Adding Comments in JasperReports template (jrxml)
  • Servicestack mini profiler
  • Logging with Castle Windsor, the Logging Facility and log4net
  • Subscribe for instances list update in GCE autoscaled group
  • Generating a unique QR code for each Order in Woocommerce
  • libvirtError: internal error Cannot find suitable CPU model for given data
  • CKEditor changing content automatically
  • Pass double pointer in a struct to CUDA
  • Apache Camel for TCP based streamer
  • How to convert old CDC mainframe PRUs to bytes?
  • compilation on Blue Gene Q - ELF header
  • Set border of a jasper subreport having a title and a detail band
  • How to highlight tpl file?
  • cygwin: Starting cron as a service (access denied)
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org