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[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, 2015-01-26, 12:24
Re: Store aggregates in HBase - HBase - [mail # user]
...Storing aggregates on its own? No. Storing aggregates of a data set that is the primary target? Sure. Why not? On Jan 9, 2015, at 9:00 PM, Buntu Dev  wrote: ...
   Author: Michael Segel, 2015-01-11, 14:53
Re: Low CPU usage and slow reads in pseudo-distributed mode - how to fix? - HBase - [mail # user]
...@Ted, Pseudo cluster on a machine that has 4GB of memory. If you give HBase 1.5GB for the region server… you are left with 2.5 GB of memory for everything else. You will swap. In short, noth...
   Author: Michael Segel, 2015-01-11, 14:50
Re: 1 vs. N CFs, dense vs. sparse CFs, flushing - HBase - [mail # user]
...Guys, You have two issues. 1) Physical structure and organization.2) Logical organization and data usage. This goes to the question of your data access pattern and use case. The best example...
   Author: Michael Segel, 2015-01-08, 12:28
Re: What is our current understanding regards state of integration tests? - HBase - [mail # dev]
...Can you do a check prior to launching the encryption test to see if the cluster has encryption enabled? If not, skip the test? On Dec 1, 2014, at 3:12 PM, Andrew Purtell  wrote: ...
   Author: Michael Segel, 2014-12-01, 15:45
[expand - 1 more] - Re: Newbie Question about 37TB binary storage on HBase - HBase - [mail # user]
...You receive images, You can store the images in sequence files.  (Since HDFS is a WORM file system, you will have to do some work here, storing individual images in a folder on HDFS whe...
   Author: Michael Segel, 2014-12-01, 15:00
[expand - 1 more] - Re: Replication terminology "master-master" - HBase - [mail # dev]
...Both clusters are alive, but the terms active/passive means who’s serving the data. Your ‘master’ is the HBase cluster which is r/w and serving data. Your ‘slave’ is the cluster that is pass...
   Author: Michael Segel, 2014-11-29, 22:41
Re: Replacing a full Row content in HBase - HBase - [mail # user]
...Hi, Lets take a step back… OP’s initial goal is to replace all of the fields/cells on a row at the same time. Thought about doing a delete prior to the put().Is now a good time to remind peo...
   Author: Michael Segel, 2014-11-20, 16:55
[expand - 3 more] - Re: Current Status of HOYA - HBase - [mail # dev]
...Yes, but seriously trying to use 0.89 in production was painful. ;-) But lets not go there. Just trying to get a handle on emerging tech (slider) and how it would fit into a production envir...
   Author: Michael Segel, 2014-11-20, 13:23
Re: I'm studying hbase with php, and I wonder getRow guarantee sequential order. - HBase - [mail # user]
...Not sure of the question. A scan will return multiple rows in sequential order. Note that its sequential byte stream order. The columns will also be in sequential order as well… So if you ha...
   Author: Michael Segel, 2014-11-11, 18:07
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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