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Re: key design - HBase - [mail # user]
...Hi there-  Given the fact that the userid is in the lead position of the key in both approaches, I'm not sure that he'd have a region hotspotting problem because the userid should be ab...
   Author: Doug Meil, 2012-10-10, 17:09
Re: How to select distinct column from a Hbase table - HBase - [mail # user]
...Here's a Scan example from the Hbase ref guideŠ  http://hbase.apache.org/book.html#scan  Š but this assumes you are asking about simply getting a distinct column from a table, as o...
   Author: Doug Meil, 2012-10-10, 15:24
Re: HBase table - distinct values - HBase - [mail # user]
...Typically this is something done as a MapReduce job.  http://hbase.apache.org/book.html#mapreduce.example  7.2.4. HBase MapReduce Summary to HBase Example    However, if ...
   Author: Doug Meil, 2012-10-10, 13:25
Re: HBase client slows down - HBase - [mail # user]
...So you're running on a single regionserver?     On 10/9/12 1:44 PM, "Mohit Anchlia"  wrote:  7, =0, 8.79, =45%,...
   Author: Doug Meil, 2012-10-09, 17:50
Re: Bulk Loads and Updates - HBase - [mail # user]
...Hi there-  re:  "All 20 versions will get loaded but the 10 oldest will be deleted during the next major compaction."  Yep, that's what is expected to happen.  For inform...
   Author: Doug Meil, 2012-10-03, 22:56
Re: Column Qualifier space requirements - HBase - [mail # user]
...Hi there, there is a separate Store per ColumnFamily, which results in a separate StoreFile.  http://hbase.apache.org/book.html#regions.arch   This section has a description of wha...
   Author: Doug Meil, 2012-10-03, 14:59
Re: HBase table row key design question. - HBase - [mail # user]
...Hi there, while this isn't an answer to some of the specific design questions, this chapter in the RefGuide can be helpful for general design..  http://hbase.apache.org/book.html#schema...
   Author: Doug Meil, 2012-10-02, 20:02
Re: HBase vs. HDFS - HBase - [mail # user]
...If you take Hbase out of it and think of it from the standpoint of 2 programs, one of which opens a file and write the output to another file, and the other one which actually processes each...
   Author: Doug Meil, 2012-10-02, 14:04
[HBASE-3737] HTable - delete(List<Delete>) doesn't use writebuffer - HBase - [issue]
...I just realized that htable.delete(List<Delete>) doesn't use the writebuffer and processes the list immediately, but htable.put(List<Put>) does use the writebuffer (i.e., send wh...
http://issues.apache.org/jira/browse/HBASE-3737    Author: Doug Meil, 2012-09-27, 23:16
Re: Hbase Scan - number of columns make the query performance way different - HBase - [mail # user]
...Hi there, I don't know the specifics of your environment, but ...  http://hbase.apache.org/book.html#perf.reading 11.8.2. Scan Attribute Selection   Š describes paying attention to...
   Author: Doug Meil, 2012-09-13, 14:29
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