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HBase Schema Design for clickstream data - HBase - [mail # user]
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...I am starting out with a new application where I need to store users clickstream data. I'll have Visitor Id, session id along with other page related data. I am wondering if I should just ke...
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Author: Mohit Anchlia,
2012-06-26, 17:34
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Re: HBase and Consistency in CAP - HBase - [mail # user]
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...Thanks. I am having just bit of conflict in understanding how is random node failure different than network partition? In both cases there is an impact clearly visible to the user (time it t...
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Author: Mohit Anchlia,
2011-12-02, 21:48
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Re: HBase and Consistency in CAP - HBase - [mail # user]
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...Thanks for the overview. It's helpful. Can you also help me understand why 2 region servers for the same row keys can't be running on the nodes where blocks are being replicated? I am assumi...
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Author: Mohit Anchlia,
2011-12-02, 20:54
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Re: HBase and Consistency in CAP - HBase - [mail # user]
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...Where can I read more on this specific subject? Based on your answer I have more questions, but I want to read more specific information about how it works and why it's designed that w...
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Author: Mohit Anchlia,
2011-12-02, 20:01
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HBase and Consistency in CAP - HBase - [mail # user]
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...Why is HBase consisdered high in consistency and that it gives up parition tolerance? My understanding is that failure of one data node still doesn't impact client as they would re-adjust th...
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Author: Mohit Anchlia,
2011-12-02, 19:57
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Re: Atomicity questions - HBase - [mail # user]
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...Thanks that makes it more clear. I also looked at mvcc code as you pointed out. So I am wondering where ZK is used specifically. On Thu, Dec 1, 2011 at 3:37 PM, lars hofhan...
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Author: Mohit Anchlia,
2011-12-01, 23:57
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Re: Atomicity questions - HBase - [mail # user]
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...Thanks. I'll try and take a look, but I haven't worked with zookeeper before. Does it use zookeeper for any of ACID functionality? On Thu, Dec 1, 2011 at 2:55 PM, lars hofhansl w...
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Author: Mohit Anchlia,
2011-12-01, 23:03
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Atomicity questions - HBase - [mail # user]
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...I have some questions about ACID after reading this page, http://hbase.apache.org/acid-semantics.html - Atomicity point 5 : row must either be "a=1,b=1,c=1" or "a=2,b=2,c=2" and must n...
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Author: Mohit Anchlia,
2011-12-01, 22:22
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Re: Hbase performance with HDFS - HBase - [mail # user]
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...Got it. I was thinking compaction happens local to the node. But it makes sense from what you have explained. On Thu, Jul 7, 2011 at 3:12 PM, Andrew Purtell wrote: rom block repl...
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Author: Mohit Anchlia,
2011-07-07, 22:17
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Re: Hbase performance with HDFS - HBase - [mail # user]
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...Thanks! I understand what you mean however I have little confusion. Does it mean there are unused block sitting around? For eg: HFile1 with 3 blocks spread accross 3 nodes Node A:(b1),...
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Author: Mohit Anchlia,
2011-07-07, 22:02
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