1
  • Hadoop error when accessing application through HTML

    We have installed Hadoop on our cluster and now we're installing HTTPFS to access the HDFS content using HTTP protocol. We're able to access the normal page but when we tried to access HDFS, we're getting an error: {"RemoteException":{"message":"User: ubantu is not allowed to impersonate ubantu",...

    ITKE366,205 pointsBadges:
  • HDFS error when testing a simple file from a Amazon EC2 machine

    I recently created an Ubuntu single node Hadoop cluster in Amazon EC2. I've tried to test a simple file upload to HDFS. It works from the EC2 machine but doesn't work outside of it. Here's the error I got: java.io.IOException: File /user/ubuntu/pies could only be replicated to 0 nodes, instead of 1...

    ITKE366,205 pointsBadges:
  • Does latest stable hive (1.0.0) support faster queries and ACID transactions?

    According to this doc: http://hortonworks.com/wp-content/uploads/2013/12/StingerTechnicalPreviewInstall.pdf Stinger is coming to work with hive (0.13) for full support of SQL queries. In addition another advantage is the faster performance and in order to check out the performance advantage of...

    nicknicknick5 pointsBadges:
  • How can one use HDFS as backend storage for Squid-proxy’s cache?

    HDFS is critical part of Hadoop landscape and provides distributed filesystem capabilities. How can one utilize HDFS for storing Squid-proxy's cache data? For example: first time a YouTube video is downloaded its stored in Squid-proxy's cache residing on HDFS. next time the same request is catered...

    dbaannaeh5 pointsBadges:
  • What is rack awareness of HDFS?

    What is rack awareness of HDFS and how can I optimize the network bandwidth using replication factor 2?

    79900150 pointsBadges:
  • What is HDFS file system namespace?

    What is the HDFS file system namespace? Is there any relation between File area network & file system namespace?

    79900150 pointsBadges:
  • Task Tracker

    What is reducer slot?How many slots will be present on a node?How to choose number of reducer slots in a cluster?

    bunga995 pointsBadges:
  • Relation between File Area Network & HDFS?

    Relation between File Area Network & HDFS? Is there any relationship between two?

    79900150 pointsBadges:
  • File area netowrk How FAN is configured on HDFS and it works?

    How FAN is configured on HDFS and it works?

    79900150 pointsBadges:
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