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[expand - 3 more] - Re: HBase region assignment by range? - HBase - [mail # user]
...Hi, Schemas are relatively straight forward if you ignore relational modeling. Think of a hierarchical  database where everything is stored and accessed off the primary key and then you...
   Author: Michael Segel, 2015-04-10, 17:08
Re: write availability - HBase - [mail # user]
...I don’t know if I would say that… I read Marcelo’s question of “if the cluster is up, even though a RS may be down, can I still insert records in to HBase?”So if the cluster is up, then you ...
   Author: Michael Segel, 2015-04-07, 14:25
[expand - 4 more] - Re: How to Manage Data Architecture & Modeling for HBase - HBase - [mail # user]
...Ok… The Hash table isn’t a really good analogy.Its really a scan of the META table that identifies which region. With respect to your use case… You can use HBase to solve it. You will need t...
   Author: Michael Segel, 2015-04-07, 12:26
Re: Removal of deprecated features - HBase - [mail # dev]
...You have to understand that anyone who has a slow moving (changing) application, will also have a UAT / DEV  area where they can test the impact of any system upgrade.  So if the u...
   Author: Michael Segel, 2015-04-06, 16:58
[expand - 3 more] - Re: introducing nodes w/ more storage - HBase - [mail # user]
...I don’t know that it is such a good idea. Let me ask it this way… What are you balancing with the HBase load balancer? Locations of HFiles on HDFS or which RS is responsible for the HFile? -...
   Author: Michael Segel, 2015-04-03, 18:30
[HBASE-12853] distributed write pattern to replace ad hoc 'salting' - HBase - [issue]
...In reviewing HBASE-11682 (Description of Hot Spotting), one of the issues is that while 'salting' alleviated  regional hot spotting, it increased the complexity required to utilize the ...
http://issues.apache.org/jira/browse/HBASE-12853    Author: Michael Segel, 2015-04-02, 14:59
[expand - 1 more] - Re: manual merge - HBase - [mail # user]
...Well with sequential data, you end up with your data being always added to the left of a region. So you’ll end up with your regions only 1/2 full after a split and then static. When you say ...
   Author: Michael Segel, 2015-03-23, 22:53
[expand - 1 more] - Re: Recovering from corrupt blocks in HFile - HBase - [mail # user]
...Ok, I’m still a bit slow this morning … coffee is not helping…. ;-) Are we talking HFile or just a single block in the HFile? While it may be too late for Mike Dillon, here’s the question th...
   Author: Michael Segel, 2015-03-23, 15:01
Re: How to put a row with an older timestamp and get it? - HBase - [mail # dev]
...Lets ask a better question… why? Are you trying to clean your data? In which case, by removing the row of ‘bad’ data, you lose your auditing. (But that will depend on if you need to audit yo...
   Author: Michael Segel, 2015-03-23, 14:54
Re: How to remove a Column Family Property - HBase - [mail # user]
...Copy the table, drop original, rename copy. ...
   Author: Michael Segel, 2015-03-19, 11:13
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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