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Re: Hadoop on physical Machines compared to Amazon Ec2 / virtual machines - Hadoop - [mail # user]
...We actually were in an Amazon/host it yourself debate with someone. Which prompted us to do some calculations:  http://www.edwardcapriolo.com/roller/edwardcapriolo/entry/myth_busters_op...
   Author: Edward Capriolo, 2012-05-31, 19:22
Re: Problems with block compression using native codecs (Snappy, LZO) and MapFile.Reader.get() - Hadoop - [mail # user]
...if You are getting a SIGSEG it never hurts to try a more recent JVM. 21 has many bug fixes at this point.  On Tue, May 22, 2012 at 11:45 AM, Jason B  wrote: ring t records) ath, pt...
   Author: Edward Capriolo, 2012-05-22, 15:59
Re: Splunk + Hadoop - Hadoop - [mail # user]
...So a while back their was an article: http://highscalability.com/how-rackspace-now-uses-mapreduce-and-hadoop-quer y-terabytes-data  I recently did my own take on full text searching you...
   Author: Edward Capriolo, 2012-05-22, 13:56
Re: Best practice to migrate HDFS from 0.20.205 to CDH3u3 - Hadoop - [mail # user]
...Honestly that is a hassle, going from 205 to cdh3u3 is probably more or a cross-grade then an upgrade or downgrade. I would just stick it out. But yes like Michael said two clusters on the s...
   Author: Edward Capriolo, 2012-05-03, 15:25
Re: hadoop.tmp.dir with multiple disks - Hadoop - [mail # user]
...Since each hadoop tasks is isolated from others having more tmp directories allows you to isolate that disk bandwidth as well. By listing the disks you give more firepower to shuffle-sorting...
   Author: Edward Capriolo, 2012-04-22, 14:44
[expand - 1 more] - Re: Feedback on real world production experience with Flume - Hadoop - [mail # user]
...I think this is valid to talk about for example one need not need a decentralized collector if they can just write log directly to decentralized files in a decentralized file system. In any ...
   Author: Edward Capriolo, 2012-04-22, 14:14
Re: Multiple data centre in Hadoop - Hadoop - [mail # user]
...Hive is beginning to implement Region support where one metastore will manage multiple filesystems and jobtrackers. When a query creates a table it will then be copied to one ore more datace...
   Author: Edward Capriolo, 2012-04-19, 23:43
Re: Hive Thrift help - Hadoop - [mail # user]
...You can NOT connect to hive thrift to confirm it's status. Thrift is thrift not http. But you are right to say HiveServer does not produce and output by default.  if netstat -nl | grep ...
   Author: Edward Capriolo, 2012-04-16, 21:55
Re: Issue with loading the Snappy Codec - Hadoop - [mail # user]
...You need three things. 1 install snappy to a place the system can pick it out automatically or add it to your java.library.path  Then add the full name of the codec to io.compression.co...
   Author: Edward Capriolo, 2012-04-15, 18:19
Re: Accessing HDFS files from an servlet - Hadoop - [mail # user]
...http://www.edwardcapriolo.com/wiki/en/Tomcat_Hadoop  Have all the hadoop jars and conf files in your classpath  URI i = URI.create("hdfs://"); FileSystem fs = ...
   Author: Edward Capriolo, 2012-04-13, 13:14
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