This is the blog post feed for OpenCore http://www.opencore.com/ Wed, 14 Apr 2021 08:43:50 UT Wed, 14 Apr 2021 00:00:00 UT Introducing Stackable - An Alternative Big Data Distribution http://www.opencore.com/blog/2021/4/introducing-stackable/ 2ac086543bb4ab5a18b058627de5cc6e Wed, 14 Apr 2021 00:00:00 UT Summary of the changes Cloudera introduced http://www.opencore.com/blog/2019/7/cloudera-license-changes/ 0fe8aecd489a852f597ba51b0367b21e Fri, 12 Jul 2019 00:00:00 UT Introducing Apache Training (incubating) http://www.opencore.com/blog/2019/2/apache-training-incubating/ 0e4c52e5b0c02bc8125a2aa4862493d0 Thu, 21 Feb 2019 00:00:00 UT We've developed a Parcel & CSD for Apache Knox http://www.opencore.com/blog/2018/11/knox-parcel/ 46b8b27fc3e08426895f3401ccf15c45 Wed, 07 Nov 2018 00:00:00 UT An Ansible playbook to generate a set of server and client keystores http://www.opencore.com/blog/2018/8/keystore-generator/ 9d123afd210a7abd78fcc7a4b60eb61c Fri, 24 Aug 2018 00:00:00 UT This blog post show you how we debugged and (finally!) solved a weird (to us) issue http://www.opencore.com/blog/2018/7/sssd-enumerate/ 6be18601e5130463a1fa9ebcb3a82d78 Mon, 06 Aug 2018 00:00:00 UT Just a quick update on what we're up to this year http://www.opencore.com/blog/2018/6/conferences-2018/ c0f6084f55c22f59a44b342f0258fb5a Mon, 11 Jun 2018 00:00:00 UT This is the story of how we got started on Azure http://www.opencore.com/blog/2018/6/cloud-has-a-limit/ d05c67b8753dd59585ace645863debfd Mon, 11 Jun 2018 00:00:00 UT This is the story of how we got started on Azure http://www.opencore.com/blog/2018/5/getting-started-on-azure/ 6f473d30bd36be35649b7bbb6d031c2c Sun, 27 May 2018 00:00:00 UT Introducing the sharedPrefixes option for Spark Hive integration http://www.opencore.com/blog/2018/3/spark-shared-prefixes/ d39a2e0267ff6178f55b066bd67e77d1 Thu, 22 Mar 2018 00:00:00 UT A PoC implementation to extend Kafka authorization features to allow for group based ACLs http://www.opencore.com/blog/2018/3/group-based-authorization-in-kafka/ 866b6292cfadccb96cc2951ce2d7c0be Sat, 03 Mar 2018 00:00:00 UT Everything you were afraid to ask about SAP Vora. http://www.opencore.com/blog/2017/5/sap-vora-introduction/ 47b3571408233fffbab8cbe1cf2c28ea Mon, 08 May 2017 00:00:00 UT A quick reference for Kerberos encryption types http://www.opencore.com/blog/2017/3/kerberos-encryption-types/ 9573603c473602d07a7bead6b723a387 Fri, 10 Mar 2017 00:00:00 UT We'll tell you where you can see us speaking in the coming two months. http://www.opencore.com/blog/2017/3/meet-opencore-in-march-and-april/ 5d931260a39917148fe27d2235bf4b72 Wed, 01 Mar 2017 00:00:00 UT This blog post explains how to get Spark 2.0 Streaming running on a HDP 2.4 cluster against a SSL secured Kafka http://www.opencore.com/blog/2017/1/spark-2-0-streaming-from-ssl-kafka-with-hdp-2-4/ 0dd2b5d541a29ed3510d5786a5f7674a Sun, 05 Feb 2017 00:00:00 UT By default Kafka MirrorMaker can only mirror messages from one topic into a topic of the same name on the mirror cluster, but by implementing a custom message handler this behavior can be changed. http://www.opencore.com/blog/2017/1/170131-mirrormaker-change-topic/ b2655eabb96915859cd7283c85566381 Tue, 31 Jan 2017 00:00:00 UT A simple process to demonstrate efficient bulk loading into HBase using Spark. The method used does not rely on additional dependencies, and results in a well partitioned HBase table with very high, or complete, data locality. This method should work with any version of Spark or HBase. http://www.opencore.com/blog/2016/10/efficient-bulk-load-of-hbase-using-spark/ e92d328a480e4c92bebd217e241ff55e Thu, 27 Oct 2016 00:00:00 UT A small demo showing how to process Twitter stream data with Kafka Streams. http://www.opencore.com/blog/2016/7/kafka-streams-demo/ 03fac456a45b2eeb1182de15e9c8d34d Wed, 27 Jul 2016 00:00:00 UT The way to pass user names to a Hadoop cluster differs subtly depending on whether or not the cluster runs in secure mode. Often, these differences are not fully understood and create issues, so in this post I will explain the basic principles for authentication based on the shared UserGroupInformation class in Hadoop. http://www.opencore.com/blog/2016/5/user-name-handling-in-hadoop/ bbddd9350c0a125b19b4c8e7d3d988e3 Thu, 19 May 2016 00:00:00 UT Running MapReduce or Spark jobs on YARN that process data in HBase is easy… or so they said until someone added Kerberos to the mix! Learn how using HBase from Spark in cluster mode requires some extra steps to enable secure access to the provided services. http://www.opencore.com/blog/2016/3/spark-on-hbase-in-cluster-mode-with-secure-hbase/ 1d355d8ba4e24adf169724982c370c70 Fri, 18 Mar 2016 00:00:00 UT Want to know more about who OpenCore is, and what the company is all about? This post has the answers you are looking for. http://www.opencore.com/blog/2016/3/hello-world/ 09ab9df9a2b52b0f8d601586dc2e7fbf Thu, 17 Mar 2016 00:00:00 UT