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Relationship between number of reducers and number of regions in the table - HBase - [mail # user]
...I couldn't decide that whether it is an HBase question or Hadoop/Yarn.In the utility class for MR jobs integerated with HBase,*org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil, *in the m...
   Author: Shahab Yunus, 2014-08-14, 12:23
Re: How to get specific rowkey from hbase - HBase - [mail # user]
...You can use the util classes provided already. Note that it won't be veryfast and you might want to try out bulk import as well (especially if it isone time or rare occurrence.) It depends o...
   Author: Shahab Yunus, 2014-08-11, 12:10
[expand - 1 more] - Re: Hbase Mapreduce API - Reduce to a file is not working properly. - HBase - [mail # user]
...Parkirat,This is a core Java concept which is mainly related to how Classinheritance works in Java and how the @Override annotation is used, and isnot Hadoop specific. (It is also used while...
   Author: Shahab Yunus, 2014-08-02, 13:05
Re: Hbase MR Job with 2 OutputForm classes possible? - HBase - [mail # user]
...There is a trick. You can use MultipleOutputs with TableMapReduceUtil. Inthe Reducer you can write to desired outputs on HDFS using MultipleOutputsand the HBase Util will do its work as is.O...
   Author: Shahab Yunus, 2014-07-31, 00:54
Re: how can I use sqoop transfer data from mysql to hbase - HBase - [mail # user]
...Can you explain a bit that what issue you are facing?Sqoop's documentation explains quite clearly how to import data from MySQLto Hbase. You can use those commands in script to automate the ...
   Author: Shahab Yunus, 2014-07-22, 13:13
Re: when to use hive vs hbase - HBase - [mail # user]
...HIve and HBase are 2 different tools/technologies. They are used togetherbut hey are not interchangeable.HIve is for on-demand, RDMS SQL like data access while HBase is the actualdata store....
   Author: Shahab Yunus, 2014-04-30, 11:47
Re: test compression in hbase - HBase - [mail # user]
...It says:RemoteException(java.io.IOException): /hbase/test is non emptyIs the directory empty or are there files form some previous runs? Does theuser have access to delete the data here?Rega...
   Author: Shahab Yunus, 2014-03-25, 12:45
Re: ExportSnapshot using webhdfs - HBase - [mail # user]
...Also Matteo, just like distcp, one advantage of this (using webhdfs whilecopying) could also be that even if the versions are not same, we can stillcopy?Regards,ShahabOn Fri, Mar 21, 2014 at...
   Author: Shahab Yunus, 2014-03-21, 13:24
Re: LSM tree, SSTable and fractal tree - HBase - [mail # user]
...http://www.slideshare.net/jaxlondon2012/hbase-advanced-lars-georgehttp://hortonworks.com/hadoop/hbase/Regards,ShahabOn Fri, Feb 28, 2014 at 8:36 AM, Vimal Jain  wrote: ...
   Author: Shahab Yunus, 2014-02-28, 13:57
Re: question about Hmaster web console - HBase - [mail # user]
...Also adding to what Ted mentioned, the following book has more details:http://books.google.com/books?id=i5IFvlnfqi8C&pg=PA85&lpg=PA85&dq=hbase+region+name+start+code&source=bl&ots=kNxk4jhoFx...
   Author: Shahab Yunus, 2014-02-07, 19:21
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB