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Re: Nosqls schema design - HBase - [mail # user]
...Ok...   First, if you're estimating that the raw data would be 10TB, you will find out that you will need a bit more to handle the data in terms of indexing and denormalized structures....
   Author: Michael Segel, 2012-11-08, 14:55
[expand - 1 more] - Re: HBase scan performance decreases over time. - HBase - [mail # user]
...hdfs-site.xml  Its an HDFS setting that may impact the balancing of HBase as well.  (I'm sure someone can give a better response by looking at the code. )    On Nov 5, 20...
   Author: Michael Segel, 2012-11-05, 18:49
Re: Table in Inconsistent State; Perpetually pending region server transitions while loading lot of data into Hbase via MR - HBase - [mail # user]
...Just out of curiosity...   What's the impact on having regions of 10GB or larger?   What does that do to your footprint in memory and the time it takes to  split or compact a ...
   Author: Michael Segel, 2012-11-01, 14:50
[expand - 1 more] - Re: adding column family to hbase table - HBase - [mail # user]
...When I hear experimental and production in the same conversation, I get  shivers up my spine.   Which release(s) contain this flag?  On Oct 30, 2012, at 9:35 AM, Kevin O'dell ...
   Author: Michael Segel, 2012-10-30, 15:22
[expand - 4 more] - Re: How to config hbase0.94.2 to retain deleted data - HBase - [mail # user]
...Lars,   No, that is not what I am suggesting.   Perhaps I am missing something. Was the OP interested in cells or in row  deletes.?  Two different issues.   On Oct 2...
   Author: Michael Segel, 2012-10-23, 18:40
Re: Hbase sequential row merging in MapReduce job - HBase - [mail # user]
...Outch...   That could get very nasty. You may end up with a lot of uneven splits.    Suppose your 'metric1' spans 3 regions,  'metric2' 1 but its still in  the same ...
   Author: Michael Segel, 2012-10-19, 14:43
[expand - 3 more] - Re: Coprocessor end point vs MapReduce? - HBase - [mail # user]
...Doug,   One thing that concerns me is that a lot of folks are gravitating to  Coprocessors and may be using them for the wrong thing.  Has anyone done any sort of research as ...
   Author: Michael Segel, 2012-10-18, 18:01
Re: hbase deployment using VMs for data nodes and SAN for data storage - HBase - [mail # user]
...Lars,   I think we need to clarify what we think of as a  SAN.  Its possible to have a SAN where the disks appear as attached storage,  while the traditional view is that...
   Author: Michael Segel, 2012-10-18, 08:39
[expand - 1 more] - Re: crafting your key - scan vs. get - HBase - [mail # user]
...Neil,   I've pointed you in the right direction.  The rest of the exercise is left to the student. :-)   While you used the comment about having fun, your question is boring. ...
   Author: Michael Segel, 2012-10-18, 08:23
Re: setAutoFlush in HTableDescriptor - HBase - [mail # user]
...Not really a good idea.   JDC hit the nail on the head.   You want to handle the setting on the HTable instance and not on the pool.  Just saying...   On Oct 10, 2012, at...
   Author: Michael Segel, 2012-10-13, 23:31
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