Introduction to Impala

Impala in terms of Hadoop has got the significance because of its, Scalability Flexibility Efficiency What’s Impala? Impala is… Interactive SQL–Impala is typically 5 to 65 times faster than Hive as it minimized the response time to just seconds, not minutes. Nearly ANSI-92 standard and compatible with ...

Hadoop Cluster Commissioning and Decommissioning Nodes

To add new nodes to the cluster: 1. Add the network addresses of the new nodes to the include file. hdfs-site.xml <property> <name>dfs.hosts</name> <value>/<hadoop-home>/conf/includes</value> <final>true</final> </property> mapred-site.xml <property> <name>mapred.hosts</name> <value>/<hadoop-home>/conf/includes</value> <final>true</final> </property> Datanodes that are permitted to connect to the namenode are specified in a file whose name is specified by the dfs.hosts property. Includes file ...

BigData TechCon-Learn HOW TO Master Big Data, Mar 31-Apr 2, Boston

Big Data TechCon, March 31-April 2, Boston, is the “how-to” big data event. Use code BIGDATA for $200 discount. www.bigdatatechcon.com Plan now to attend Big Data TechCon, March 31-April 2 in Boston, to learn HOW-TO accommodate the terabytes and petabytes of data ...

5 lessons we learned about data science in 2013

Most people know what marketing executives do every day. They try to catch people’s attention through email, ads, tweets, and press releases. As for data scientists, well, their work is not nearly as well understood. That’s been slowly changing this year ...
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