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Re: increment counters via bulk upload in HBase - HBase - [mail # user]
...We solved this partially by converting increment to put and aggregating in preCompact. I guess that if you bulk upload an HFile which has this puts which are a representation of a delta to a...
   Author: Asaf Mesika, 2013-02-18, 22:18
Re: Using HBase for Deduping - HBase - [mail # user]
...You can load the events into an Hbase table, which has the event id as the unique row key. You can define max versions of 1 to the column family thus letting Hbase get rid of the duplicates ...
   Author: Asaf Mesika, 2013-02-14, 22:26
Re: column count guidelines - HBase - [mail # user]
...Can you elaborate more on that features? I thought 4 was just for bug fixes.  Sent from my iPhone  On 8 בפבר 2013, at 02:34, Ted Yu  wrote:  How many column families are ...
   Author: Asaf Mesika, 2013-02-08, 16:25
Re: Pagination with HBase - getting previous page of data - HBase - [mail # user]
...Here are my thoughts on this matter:  1. If you define setCaching(numOfRows) on the the scan object, you can check before each call to make sure you haven't passed your page limit, thus...
   Author: Asaf Mesika, 2013-02-03, 14:07
Re: Getting the scan type at preCompact - HBase - [mail # user]
...But my scanner is a wrapper to the scanner passed on to me in preCompact. This scanner is created in the Store object (StoreScanner) with arguments I don't have at preCompactScannerOpen(). S...
   Author: Asaf Mesika, 2013-01-29, 18:21
Re: Tables vs CFs vs Cs - HBase - [mail # user]
...I would go on using the row-key, on one table.  = Row Key Structure    group-depth: 1..4, encoded as 1 byte A-D group; encoded as 1 byte and not as string  Examples: &nbs...
   Author: Asaf Mesika, 2013-01-28, 21:54
[expand - 2 more] - Re: HBASE-7114 Increment does not extend Mutation but probably should - HBase - [mail # user]
...Yep. I think it would be faster it you will change the Increment object in the preIncrement object and add the allCountries column to it.  When you do it in the PostIncrement method, yo...
   Author: Asaf Mesika, 2013-01-26, 18:30
Re: increment-related bug Was: HBASE-7114 Increment does not extend Mutation but probably should - HBase - [mail # user]
...We ran 150gig of Increment objects. When we compared the expected, we had a lot more than expected. We are using 0.94.3. I will run this qa test again tomorrow with logging of HTable turned ...
   Author: Asaf Mesika, 2013-01-26, 17:18
Re: write throughput in cassandra, understanding hbase - HBase - [mail # user]
...Sent from my iPhone  On 22 בינו 2013, at 20:47, Jean-Daniel Cryans  wrote:  On Tue, Jan 22, 2013 at 10:38 AM, S Ahmed  wrote:  I've read articles online where I see ...
   Author: Asaf Mesika, 2013-01-22, 20:57
Re: Loading data, hbase slower than Hive? - HBase - [mail # user]
...Start by telling us your row key design. Check for pre splitting your table regions. I managed to get to 25mb/sec write throughput in Hbase using 1 region server. If your data is evenly spre...
   Author: Asaf Mesika, 2013-01-19, 19:50
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