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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
Re: Custom Filter and SEEK_NEXT_USING_HINT issue - HBase - [mail # user]
...If its the same class and its not a patch, then the first class loaded wins.   So if you have a Class Foo and HBase has a Class Foo, your code will never see the light of day.  Per...
   Author: Michael Segel, 2013-01-21, 00:22
Re: Loading data, hbase slower than Hive? - HBase - [mail # user]
...The writes take longer in HBase.   Just how much longer may depend on how well you tuned HBase.   Now, having said that... suppose you want to find a single record in either HBase ...
   Author: Michael Segel, 2013-01-17, 16:48
Re: Hbase as mongodb - HBase - [mail # user]
...The interface to pull JSON objects out of HBase will not be the same as Mongo DB.   Meaning that you can store JSON objects in HBase. ( See Avro, or Wibidata's Kiji for example)  B...
   Author: Michael Segel, 2013-01-17, 15:25
Re: Storing images in Hbase - HBase - [mail # user]
...That's a viable option.  HDFS reads are faster than HBase, but it would require first hitting the index in HBase which points to the file and then fetching the file.  It could be f...
   Author: Michael Segel, 2013-01-11, 15:00
[expand - 3 more] - Re: HBase - Secondary Index - HBase - [mail # user]
...So if you're using an inverted table / index why on earth are you doing it at the region level?   I've tried to explain this to others over 6 months ago and its not really a good idea. ...
   Author: Michael Segel, 2013-01-08, 14:33
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