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Re: coprocessor enabled put very slow, help please~~~ - HBase - [mail # user]
...I should follow up with that I was asking why he was using an HTable Pool, not saying that it was wrong.   Still. I think in the pool the writes shouldn't have to go to the WAL.   ...
   Author: Michael Segel, 2013-02-19, 16:29
Re: HBase without compactions? - HBase - [mail # user]
...Well  M7 is supposed to be in open public beta,  I think.   I haven't had time to play with it, but MapR has a lot of nice features that can't really be done in HDFS.  It...
   Author: Michael Segel, 2013-02-19, 06:47
Re: Optimizing Multi Gets in hbase - HBase - [mail # user]
...So you'd have to do a little bit of home work up front.   Supposed you have to pull some data from 30K rows out of 10 Mil? If they are in sort order, you could determine the regions and...
   Author: Michael Segel, 2013-02-18, 12:52
Re: Row Key Design in time based aplication - HBase - [mail # user]
...So its a *shameless* plug?  :-)  Depending on the project id, it could be a good key, but it would have to be something more meaningful than just a number.   To answer the que...
   Author: Michael Segel, 2013-02-18, 01:29
Re: Using HBase for Deduping - HBase - [mail # user]
...Well,  Maybe its a lack of sleep, but this is what I found...  checkAndPut  public boolean checkAndPut(byte[] row,                 &nbs...
   Author: Michael Segel, 2013-02-15, 01:43
Re: Empty a table - HBase - [mail # user]
...I think its more akin of the typical 'truncate' command.   Actually, if someone wanted to extend HBase Shell, I would imagine a simple Ruby er JRuby script could do this? (You would wan...
   Author: Michael Segel, 2013-02-07, 19:16
Re: MapReduce to load data in HBase - HBase - [mail # user]
...Pig is like any other scripting language. Therefore maintainable.   Your script defines the schema of the data set and then does the processing you tell it to do.   On Feb 7, 2013,...
   Author: Michael Segel, 2013-02-07, 13:22
Re: How would you model this in Hbase? - HBase - [mail # user]
...Overloading the time stamp aka the versions of the cell is really not a good idea.   Yeah, I know opinions are like A.... everyone has one. ;-)   But you have to be aware that if s...
   Author: Michael Segel, 2013-02-06, 21:49
Re: HBase coprocessor callback for comet - HBase - [mail # user]
...I'd say add some sort of durable queue to receive the alert if you don't want to miss a message.   Essentially use a region server observer and write the alert to your favorite pub/sub ...
   Author: Michael Segel, 2013-02-06, 12:39
Re: cluster monitoring - HBase - [mail # user]
...Sounds like you're looking to see what rows are being selected within a region.   In theory you could do this w coprocessors, but I wouldn't recommend it.  You're going to take a h...
   Author: Michael Segel, 2013-02-05, 14:16
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