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HFile Reader in 0.96 and 0.98 - HBase - [mail # user]
...Hi,I am trying to make compatible HBase 0.96 with 0.98 but, I have seen thatthe HFile.createReader has a new parameter "Configuration". I have beenlooking for another way to get an Hfile.Rea...
   Author: Guillermo Ortiz, 2014-07-24, 11:52
Coprocessor beacuse of TTL expired? - HBase - [mail # user]
...I want to use coprocessors (observers), Could I execute an coprocessorswhich executes my code when a row expired because the TTL has expired?will it be executed automatically? I mean,, witho...
   Author: Guillermo Ortiz, 2014-07-21, 12:25
[expand - 1 more] - Re: Store data in HBase with a MapReduce. - HBase - [mail # user]
...If I have to.... how me reducers I should have?? as many as number ofregions?? I have read about HRegionPartitioner, but it has somelimitations, and you have to be sure that any region isn't...
   Author: Guillermo Ortiz, 2014-06-27, 07:22
Re: Does compression ever improve performance? - HBase - [mail # user]
...I would like to see the times they got doing some scans or get with thebenchmark about compression and block code to figure out how much time tosave if your data are smaller but you have to ...
   Author: Guillermo Ortiz, 2014-06-14, 19:52
Delete rowKey in hexadecimal array bytes. - HBase - [mail # user]
...Hi,I'm generating key with SHA1, as it's a hex representation after generatingthe keys, I use Hex.decode to save memory since I could store them in halfspace.I have a MapReduce process which...
   Author: Guillermo Ortiz, 2014-06-09, 09:02
Parallel Scan with TableMapReduceUtil - HBase - [mail # user]
...I am processing data from HBase with a MapReduce. The input of my MapReduceis a "full" scan of a table.When I execute a full scan with TableMapReduceUtil, is this scan executedin parallel, s...
   Author: Guillermo Ortiz, 2014-05-15, 16:26
[expand - 3 more] - Re: Error loading SHA-1 keys with load bulk - HBase - [mail # user]
...The error was that when I was emitting the , I was doing SHA about K,not about the key in the Value.The Value is a KeyValue and here's where I had to do the SHA1.2014-05-02 0:42 GMT+02:00 Gu...
   Author: Guillermo Ortiz, 2014-05-06, 12:18
[expand - 1 more] - Re: Weird behavior splitting regions - HBase - [mail # user]
...I read the article, that's why I typed the question, because I didn'tunderstand the result I got.Oh, yes!!, that's true, so silly.I think some of the files are pretty small because the table...
   Author: Guillermo Ortiz, 2014-04-15, 10:35
[expand - 3 more] - Re: How to generate a large dataset quickly. - HBase - [mail # user]
...But, if I'm using bulkLoad, I think this method bypasses the WAL, right?I have no idea about the autoFlush, is it still necessary to set to falseor the bulkload does some kind of magic with ...
   Author: Guillermo Ortiz, 2014-04-14, 21:07
[expand - 2 more] - Re: Lease exception when I execute large scan with filters. - HBase - [mail # user]
...Well, It was just a example why I could keep a thousand versions or a cell.I didn't know that HBase was checking each version when I do a scan, it's alittle weird when data is sorted.You get...
   Author: Guillermo Ortiz, 2014-04-12, 13:55
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