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Re: hbase as a primary store, or is it more for "2nd class" data? - HBase - [mail # user]
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...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...
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Author: Amandeep Khurana,
2012-05-14, 19:47
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Re: hbase as a primary store, or is it more for "2nd class" data? - HBase - [mail # user]
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...HDFS is designed to not lose data if a few nodes fail. It holds multiple replicas of each block. Having said that - it also depends on the definition of "a few". Many companies are using HDF...
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Author: Amandeep Khurana,
2012-05-14, 19:41
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Re: Switching existing table to Snappy possible? - HBase - [mail # user]
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...would allow you to do this without disabling tables. It's experimental in 0.92. On Thu, May 10, 2012 at 9:02 AM, Jeff Whiting wrote: ry he.org/book/snappy.compression.html&...
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Author: Amandeep Khurana,
2012-05-10, 16:11
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Re: HMaster shutdown when a DNS address cannot be solved - HBase - [mail # dev]
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...+user (bcc: dev) Mikael, Such questions are better suited for the user mailing list. You'll find more people talking about issues that they ran into and possibly get answers to y...
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Author: Amandeep Khurana,
2012-04-08, 23:49
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Re: HBase with EMR - HBase - [mail # user]
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...Correct - you can access any external service by using a custom jar. On Sun, Mar 4, 2012 at 10:55 PM, Mohit Gupta wrote: ...
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Author: Amandeep Khurana,
2012-03-05, 19:22
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Re: HFileInputFormat for MapReduce - HBase - [mail # user]
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...Is your primary access pattern scans or random reads and writes? If it's primarily scans, you could consider just keeping flat files. If you need random reads and writes over a small amount ...
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Author: Amandeep Khurana,
2012-02-09, 23:23
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Re: HFileInputFormat for MapReduce - HBase - [mail # user]
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...Tim Going directly to HFiles has the following pitfalls: 1. You'll miss out on data that's in the memstore and has not been flushed to an HFile yet. 2. If you have deletes,...
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Author: Amandeep Khurana,
2012-02-09, 08:24
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Re: Question about HBase for OLTP - HBase - [mail # user]
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...Delete and Updates in HBase are like new writes.. The way to update a cell is to actually do a Put. And when you delete, it internally flags the cell to be deleted and removes the data from ...
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Author: Amandeep Khurana,
2012-01-09, 17:36
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Re: Could an EC2 machine to 4 times slower than local dev workstation? - HBase - [mail # user]
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...Is your client program running on the same node? Given that c1.mediums are on shared hosts, your neighbor might be overloading his VM, causing yours to starve. On Fri, Dec 30, 2011 at ...
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Author: Amandeep Khurana,
2011-12-30, 05:38
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Re: Thoughts on a hybrid HBase-Hadoop cluster - HBase - [mail # user]
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...Otis, You could co-locate RS' with TT and DN for the most part as long as you are not really serving "real time" requests. Just tweak your task configs and give HBase enough RAM. You g...
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Author: Amandeep Khurana,
2011-12-14, 13:12
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