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if reads are bigger than a heap size? - HBase - [mail # user]
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...hi, hbase users. maybe this is a dummy question for well-known hbase users. if read requests are so many many, data size is bigger than heap size. I mean that data size from requ...
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Author: Henry JunYoung KIM,
2013-03-19, 05:34
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too heavy network traffic when row-counting by coprocessor. - HBase - [mail # user]
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...hi, friends. I've tested to count total table rows by using AggregationClient that is using a coprocessor. In a this client, it provide RowCount class to count all rows in a tabl...
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Author: Henry JunYoung KIM,
2013-03-05, 01:16
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Re: HRegionInfo returns empty values. - HBase - [mail # user]
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...I want to extract a start-key and an end-key of a region ;) for a start key, a scanner is enough I think without arguments. then it returns a single row which is a start-key of ...
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Author: Henry JunYoung KIM,
2012-10-22, 00:15
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Re: HRegionInfo returns empty values. - HBase - [mail # user]
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...yes, right ;) currently, I have just a single region. in this case, to get a start-key and and end-key, I need to use just a scanner. right? 2012. 10. 19., 오후 5:51,...
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Author: Henry JunYoung KIM,
2012-10-19, 09:03
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HRegionInfo returns empty values. - HBase - [mail # user]
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...Hi, hbase-users. To get a start-key and end-key from each region, I implemented simple code like this. HTable table = new HTable(admin.getConf(), admin.getTa...
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Author: Henry JunYoung KIM,
2012-10-19, 08:43
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questions to append data always from table end!!! - HBase - [mail # user]
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...hi, hbase users. this question is about a row-key design pattern I believe. To append data always an end of table, which row-key structures are recommenable? multiple threa...
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Author: Henry JunYoung KIM,
2012-10-05, 06:50
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Re: ways to make orders when it puts - HBase - [mail # user]
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...yes, this needs for our indexer for datas. I mean that hbase need to store some kinds of data list based on entry time and then by indexer, It will try to search new data list by...
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Author: Henry JunYoung KIM,
2012-10-05, 01:58
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cannot create a table having a snappy compression algorithm in mac os x. - HBase - [mail # user]
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...Hi, hbase users. I have a problem to create a table with a snappy algorithm in Mac OS X (lion). I am sure that there is a snappy jar file in $HBASE_HOME/lib, but, it ...
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Author: Henry JunYoung KIM,
2012-09-05, 11:35
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Re: Coprocessor tests under busy insertions - HBase - [mail # user]
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...hi, Anoop. this is my implementation using Coprocessors RegionObserver. … @Override public void prePut(ObserverContext e, Put put, WALEdit edit, ...
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Author: Henry JunYoung KIM,
2012-08-13, 05:15
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Coprocessor tests under busy insertions - HBase - [mail # user]
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...Hi, hbase users. now, I am testing coprocessors to create secondary indexes in background. coprocessors itself is packaged in base 0.92.1 I am using. the scenario I ...
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Author: Henry JunYoung KIM,
2012-08-13, 01:48
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