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Re: Custom Filter and SEEK_NEXT_USING_HINT issue - HBase - [mail # user]
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...Anoop, Ramkrishna Thank you for explanation! I've got it. On Mon, Jan 21, 2013 at 12:59 PM, Anoop Sam John wrote: Evgeny Morozov Developer Grid Dynamics Skyp...
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Author: Eugeny Morozov,
2013-01-21, 11:44
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Re: Custom Filter and SEEK_NEXT_USING_HINT issue - HBase - [mail # user]
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...Finally, the mystery has been solved. Small remark before I explain everything. The situation with only region is absolutely the same: Fzzy: AAAA1Q7iQ9JA Next fzzy: F7dtxwqVQ_Pw ...
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Author: Eugeny Morozov,
2013-01-21, 08:16
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Re: Custom Filter and SEEK_NEXT_USING_HINT issue - HBase - [mail # user]
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...Ted, thanks for the question. There are results of investigation. It seems I am mistaken. I thought that scanners are assigned to each regions to scan (and do that in parallel) and tha...
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Author: Eugeny Morozov,
2013-01-20, 21:22
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Re: Custom Filter and SEEK_NEXT_USING_HINT issue - HBase - [mail # user]
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...Ted, that is correct. HBase 0.92.x and we use part of the patch 6509. I use the filter as a custom filter, it lives in separate jar file and goes to HBase's classpath. I did not ...
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Author: Eugeny Morozov,
2013-01-19, 09:36
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Custom Filter and SEEK_NEXT_USING_HINT issue - HBase - [mail # user]
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...Hi, folks! HBase, Hadoop, etc version is CDH-4.1.2 I'm using custom FuzzyRowFilter, which I get from http://blog.sematext.com/2012/08/09/consider-using-fuzzyrowfilter-when-in-nee...
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Author: Eugeny Morozov,
2013-01-18, 23:28
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Re: Many scanner opening - HBase - [mail # user]
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...Lars, We tried, but I didn't know there is such a contention issue. We have two different column families. First one contains data, that are partially used as a filter. And actual data...
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Author: Eugeny Morozov,
2012-12-23, 18:32
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Re: Many scanner opening - HBase - [mail # user]
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...Lars, Cool stuff! Thanks a lot! I'm not sure I can apply the patch, cause we're using CDH-4.1.1, but increasing size of internal scanner does the trick - decreased number of scanners. ...
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Author: Eugeny Morozov,
2012-12-20, 10:32
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Many scanner opening - HBase - [mail # user]
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...Hello! We faced an issue recently that the more map tasks are completed, the longer it takes to complete one more map task. In our architecture we have two scanners to read the t...
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Author: Eugeny Morozov,
2012-12-18, 08:01
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Re: Debugging Coprocessor code in Eclipse - HBase - [mail # user]
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...Anil, you could've also get some benefit from using HBaseTestingUtility. It is able to run HBase cluster in standalone mode all-in-one JVM. Of course it requires to have some code to c...
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Author: Eugeny Morozov,
2012-10-16, 20:17
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Re: Does TotalOrderPartitioner refresh its partitions selection tree - HBase - [mail # user]
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...Chris, In this case nothing scared actually happens. * If partitions are the same, then HBase simply copies all your HFiles during bulkloading procedure. * If partitions are chan...
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Author: Eugeny Morozov,
2012-10-09, 07:45
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