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Re: Enabling caching increasing the time of retrieval - HBase - [mail # user]
...What is the data set size? Can you manually flush the tables and them run the tests?  Also can you tell us about your configs a bit. Heap allocation to the region servers and the percen...
   Author: Amandeep Khurana, 2012-06-25, 06:50
Re: Increment Counters in HBase during MapReduce - HBase - [mail # user]
...As the the thread JD pointed out suggests - the best approach if you want to avoid aggregations later on is to aggregate in an MR job, output to a file with ad id and the number of impressio...
   Author: Amandeep Khurana, 2012-06-20, 02:51
Re: Performance testing group - HBase - [mail # dev]
...I want in too. And +1 on keeping it on the dev list for now and moving it out when it gets unwieldy..     On Friday, June 15, 2012 at 2:59 PM, Roman Shaposhnik wrote:    ...
   Author: Amandeep Khurana, 2012-06-15, 22:03
Re: Shared HDFS for HBase and MapReduce - HBase - [mail # dev]
...When you run a MR job with HBase as a source/sink, you use the HBase API under the hood (get, put, scan). That API is how your client (in this case the map or reduce tasks) interact with the...
   Author: Amandeep Khurana, 2012-06-06, 21:05
Re: Shared Cluster between HBase and MapReduce - HBase - [mail # user]
...Atif,  These are general recommendations and definitely change based on the access patterns and the way you will be using HBase and MapReduce. In general, if you are building a latency ...
   Author: Amandeep Khurana, 2012-06-06, 00:20
Usage of filters - HBase - [mail # user]
...Hi HBase users,  I'm curious to know about how filters are being used by folks in production. They are a powerful feature but I haven't heard/read much about how they are being used in ...
   Author: Amandeep Khurana, 2012-06-03, 21:22
Re: When does compaction actually occur? - HBase - [mail # user]
...Tom,    Old cells will get deleted as a part of the next major compaction, which  is typically recommended to be done once a day, when the load on the syst em is at its lowest...
   Author: Amandeep Khurana, 2012-06-01, 23:04
Re: Data import from Distributed Hbase cluster to Pseudo Distributed Hbase cluster - HBase - [mail # user]
...Assuming that your data fits into the pseudo dist cluster and both clusters can talk to each other, the CopyTable job that comes bundled with HBase should work.  -ak    On Tue...
   Author: Amandeep Khurana, 2012-05-29, 18:45
Re: Efficient way to read a large number of files in S3 and upload their content to HBase - HBase - [mail # user]
...Thanks for that description. I'm not entirely sure why you want to use HB ase here. You've got logs coming that you want to process in batch to do  calculations on. This can be done by ...
   Author: Amandeep Khurana, 2012-05-24, 20:47
Re: hbase as a primary store, or is it more for "2nd class" data? - HBase - [mail # user]
...Ahmed,   I'll second what Ian and Andrew have highlighted. HBase is very capable of being used as a primary store as long as you run it following the best practices. It's a useful exerc...
   Author: Amandeep Khurana, 2012-05-14, 19:47
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