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Re: Doubt Regading HLogs - HBase - [mail # user]
...In this situation, you can set the  logroll.period  to a short value, let's say 3000 and then you can see your log file with current size after 3 seconds.  To Nicolas,  I...
   Author: yonghu, 2013-05-17, 11:40
How can I set heap size for HBase? - HBase - [mail # user]
...Dear All,  I wonder how I can set heap size for HBase and what is the suitable portion compared to whole memory size? And the other question is that how many memory size I need to give ...
   Author: yonghu, 2013-03-11, 11:15
Re: Possible to delete a specific cell? - HBase - [mail # user]
...Hello,  I think you can use HBase org.apache.hadoop.hbase.client.Delete class. It already supported to delete a specific version in a cell, see public Delete deleteColumn(byte[] family,...
   Author: yonghu, 2013-03-07, 20:56
Re: Hbase table with a nested entity - HBase - [mail # user]
...Hello Dastgiri,  I don't think HBase can support original nested schema which you want to define. But you can still store your data in HBase. I figured out several possible solutions: &...
   Author: yonghu, 2013-02-27, 11:06
Re: coprocessor enabled put very slow, help please~~~ - HBase - [mail # user]
...Ok. Now, I got your point. I didn't notice the "checkAndPut".  regards!  Yong  On Mon, Feb 18, 2013 at 1:11 PM, Michael Segel  wrote:...
   Author: yonghu, 2013-02-18, 12:22
Re: coprocessor enabled put very slow, help please~~~ - HBase - [mail # user]
...Hi, Michael  I don't quite understand what do you mean by "round trip back to the client". In my understanding, as the RegionServer and TaskTracker can be the same node, MR don't have t...
   Author: yonghu, 2013-02-18, 10:57
Re: coprocessor enabled put very slow, help please~~~ - HBase - [mail # user]
...Forget to say. I also tested MapReduce. It's faster than coprocessor.  On Mon, Feb 18, 2013 at 10:01 AM, yonghu  wrote:...
   Author: yonghu, 2013-02-18, 09:02
Re: coprocessor enabled put very slow, help please~~~ - HBase - [mail # user]
...Parkash,  I have a six nodes cluster and met the same problem as you had. In my test, inserting one tuple using coprocessor is nearly 10 times slower than normal put operation. I think ...
   Author: yonghu, 2013-02-18, 09:01
Re: Is it possible to indicate the column scan order when scanning table? - HBase - [mail # user]
...Thanks for your response. I will take a look.  yong On Thu, Feb 7, 2013 at 10:11 PM, Ted Yu  wrote:...
   Author: yonghu, 2013-02-08, 05:36
Re: Is it possible to indicate the column scan order when scanning table? - HBase - [mail # user]
...Like a table can contain ttl data and static data without indicating ttl. So, I want to first scan the columns which have ttl restrictions and later the static columns. The goal that I want ...
   Author: yonghu, 2013-02-07, 20:01
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