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Re: How to free space - HBase - [mail # user]
...Cyril,  Did you notice the space on the hbase directory in HDFS change at all? It takes time to complete the major compactions (and it depends on the size of the tables). Deleting colum...
   Author: Amandeep Khurana, 2012-06-27, 18:03
Re: Best practices for custom filter class distribution? - HBase - [mail # user]
...Currently, you have to compile a jar, put them on all servers and restart the RS process. I don't believe there is an easier way to do it as of right now. And I agree, it's not entirely desi...
   Author: Amandeep Khurana, 2012-06-27, 17:54
[expand - 1 more] - 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
[expand - 1 more] - 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
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