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Re: Finding the latest updated rows - HBase - [mail # user]
...Using the timestamp to find the last updated row is going to cause problems...   1) It will have to be the first portion of your composite row-key, otherwise you still end up performing...
   Author: Michael Segel, 2014-01-21, 12:14
[expand - 1 more] - Re: HBase 0.94.15: writes stalls periodically even under moderate steady load (AWS EC2) - HBase - [mail # dev]
...I need to apologize and clarify this statement…   First, running benchmarks on AWS is ok, if you’re attempting to get a rough idea of how HBase will perform on a certain class of machin...
   Author: Michael Segel, 2014-01-17, 15:03
Re: How to remove duplicate data in HBase? - HBase - [mail # user]
...First, you should define what you mean when you say duplicate data.  Depending on your definition… it may already be handled.   On Jan 17, 2014, at 7:39 AM, Ted Yu  wrote: &nb...
   Author: Michael Segel, 2014-01-17, 14:54
Re: Fine tunning - HBase - [mail # user]
...In your mapreduce, in the mapper.setup() read the lookup tables in to memory and then access them as needed in your Mapper.map() method. Same for reducer...   See mapper  joins in ...
   Author: Michael Segel, 2014-01-17, 12:19
[expand - 1 more] - Re: Purpose of versions in HBase... - HBase - [mail # dev]
...I believe there's a bit more to it...   Which is why I am asking.  As to #3... What happens to a column when you put a tombstone marker on it?   On Dec 9, 2013, at 11:56 AM, S...
   Author: Michael Segel, 2013-12-09, 23:17
[expand - 2 more] - Re: Practical Upper Limit on Number of Version Stored? - HBase - [mail # user]
...Look,   Just because you can do something, doesn't mean its a good idea.   From a design perspective its not a good idea.   Ask yourself why does versioning exist?  What ...
   Author: Michael Segel, 2013-12-06, 12:23
Re: Linear Scalability in HBase - HBase - [mail # user]
...How do you define linear scalability?  Is it as the cluster grows the time it takes to fetch data is roughly consistent?   In your test… you’re changing both the number of users an...
   Author: Michael Segel, 2013-10-25, 15:24
[expand - 2 more] - Re: coprocessor status query - HBase - [mail # user]
...Well...   I am biting my tongue. ;-P  I could have gone on to say that unless you have a very special use case that can't be implemented another way, and that you are going to have...
   Author: Michael Segel, 2013-10-23, 12:21
Re: How can I insert large image or video into HBase? - HBase - [mail # user]
...Actually you didn't.   Its actually a good question and JM gave you the short answer. ;-)   First to clarify... depending on the size of the image or video you may want to actually...
   Author: Michael Segel, 2013-10-23, 12:07
Re: HConnectionImplementation.listTables and list table exception - HBase - [mail # user]
...Why 9 zookeepers?   On Oct 23, 2013, at 12:46 AM, 张莉苹  wrote:   The opinions expressed here are mine, while they may reflect a cognitive thought, that is purely accidental. &n...
   Author: Michael Segel, 2013-10-23, 12:00
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