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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
Re: Indexing w/ HBase - HBase - [mail # user]
...Silly question(s).   1) What sort of indexes do you want to build?  2) Why would you want to store your indexes outside of HBase?   (Ok they are not so silly.  But I don'...
   Author: Michael Segel, 2012-10-12, 13:00
Re: How well does HBase run on low/medium memory/cpu clusters? - HBase - [mail # user]
...Well you don't want to do joins in HBase.  There are a couple of ways to do this, however, I think based on what  you have said... the larger issue for either solution (HBase or My...
   Author: Michael Segel, 2012-10-10, 13:51
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB