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Re: question about merge-join (or AND operator betwween colums) - HBase - [mail # user]
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...Suppose we used different families, how would it help ? -Jack On Jan 8, 2011, at 6:47 PM, Todd Lipcon wrote: apping-strings-numbers-and-dates-onto-bytes/...
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Author: Jack Levin,
2011-01-09, 02:53
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Re: What is a HBase backup strategy? - HBase - [mail # user]
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...distcp into a different hadoop cluster nightly, maybe a valid choice as well. -Jack On Sat, Jan 8, 2011 at 7:37 AM, Ted Yu wrote: ...
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Author: Jack Levin,
2011-01-08, 22:59
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Re: question about merge-join (or AND operator betwween colums) - HBase - [mail # user]
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...Future wise we plan to have millions of rows, probably across multiple regions, even if IO is not a problem, doing millions of filter operations does not make much sense. -Jack O...
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Author: Jack Levin,
2011-01-08, 22:57
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Re: question about merge-join (or AND operator betwween colums) - HBase - [mail # user]
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...Sorting is not the issue, the location of data can be in the beginning, middle or end, or any combination of thereof. I only given the worst case scenario example, I understand that fi...
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Author: Jack Levin,
2011-01-08, 22:26
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Re: question about merge-join (or AND operator betwween colums) - HBase - [mail # user]
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...Basic problem described: user uploads 1 image and creates some text -10 days ago, then creates 1000 text messages on between 9 days ago and today: row key &...
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Author: Jack Levin,
2011-01-08, 19:59
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Re: question about merge-join (or AND operator betwween colums) - HBase - [mail # user]
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...Yes, we thought about using filters, the issue is, if one family column has 1ml values, and second family column has 10 values at the bottom, we would end up scanning and filtering 99990 rec...
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Author: Jack Levin,
2011-01-08, 19:35
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Re: question about merge-join (or AND operator betwween colums) - HBase - [mail # user]
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...Sorry, my mistake, right now its only OR, and we really need AND. I would think that with bloomfilters this could be a sweet feature to produce if its not there. -Jack On Fri, J...
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Author: Jack Levin,
2011-01-08, 18:30
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question about merge-join (or AND operator betwween colums) - HBase - [mail # user]
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...Hello all, I have a scanner question, we have this table: hbase(main):002:0> scan 'mattest' ROW &...
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Author: Jack Levin,
2011-01-08, 04:01
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log reply failures, how to resolve - HBase - [mail # user]
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...Greetings all. I have been observing some interesting problems that sometimes making hbase start/restart very hard to achieve. Here is a situation: Power goes out of a rack...
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Author: Jack Levin,
2011-01-08, 02:32
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Re: .META. Table - HBase - [mail # user]
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...Here is mine btw: 21:30:44 10.101.7.1 jack@rdag1:~ $ hadoop fs -lsr /hbase/.META./1028785192/info/ | wc -l 1825 And, I think yes, most of the META queries are hitting cache: &nbs...
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Author: Jack Levin,
2011-01-04, 05:35
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