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Re: delete rows from hbase - HBase - [mail # user]
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...Ok , I see. Is it possible to do it using one map/reduce job. Map phase will scan required rows using filter. Reduce phase use this row and delete it from the table. My question is it ...
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Author: Oleg Ruchovets,
2012-06-18, 23:13
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delete rows from hbase - HBase - [mail # user]
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...Hi , I need to delete rows from hbase table by criteria. For example I need to delete all rows started with "12345". I didn't find a way to set a row prefix for delete operation. What is the...
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Author: Oleg Ruchovets,
2012-06-18, 22:08
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Re: hbase cascading integration problem - HBase - [mail # user]
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...On Tue, Mar 27, 2012 at 12:10 AM, Ted Yu wrote: Yes , this class is like a proxy instead of cascading one , because cascading using old api which has no support of RowFilters. Ru...
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Author: Oleg Ruchovets,
2012-03-26, 23:52
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hbase cascading integration problem - HBase - [mail # user]
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...Hi , I know that this is more cascading related issue but may be someone faced with the same problem or know a another implementation of cascading hbase Tap which support...
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Author: Oleg Ruchovets,
2012-03-26, 21:55
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hbase schema row_key only - HBase - [mail # user]
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...Hi , I my case hbase table has only row key. The way I add a record to hbase is: ................. Put put = new Put(keyBytes); put.add(Bytes...
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Author: Oleg Ruchovets,
2012-03-23, 20:30
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hbase vs mysql read benchmark - HBase - [mail # user]
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...Hi. We are going to write to hbase 50-80 million records on daily basis. Actually write performance is not critical. We are going read relatively small amount of data 500...
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Author: Oleg Ruchovets,
2012-03-02, 19:37
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IN_MEMORY=true settings question - HBase - [mail # user]
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...Hi , Default value of IN_MEMORY is false. I am going to set IN_MEMORY to true. Should it improve read operation and what is the trade off setting IN_MEMORY to true ( We u...
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Author: Oleg Ruchovets,
2012-03-02, 19:10
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Hbase Table has many column families - HBase - [mail # user]
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...Hi , according hbase book ( http://hbase.apache.org/book/number.of.cfs.html ) it is recommended as less column families as possible. I our case we have a schema which has ...
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Author: Oleg Ruchovets,
2012-03-02, 18:49
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major compaction time constantly growing - HBase - [mail # user]
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...Hi , Our environment hbase 90.2 (10 machine) We have 10 machine grid: master has 48G ram slaves machine has 16G ram. Region Ser...
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Author: Oleg Ruchovets,
2011-09-21, 18:31
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Re: how to make tuning for hbase (every couple of days hbase region sever/s crashe) - HBase - [mail # user]
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...Thank you very much for your post , It very similar what is happening in our environment. Before we are going to increase HeapSize we want to make some tuning for hbase m...
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Author: Oleg Ruchovets,
2011-08-25, 08:55
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