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Re: Set like functionality - HBase - [mail # user]
...A lot of your design depends on your read/write rate & the amount of duplication in your inserts.  For example, if your read rate is really low and your write rate is really high with a...
   Author: Nicolas Spiegelberg, 2012-02-10, 19:52
Re: svn commit: r1239930 - in /hbase/branches/0.89-fb/src: main/java/org/apache/hadoop/hbase/master/SplitLogManager.java test/java/org/apache/hadoop/hbase/master/TestSplitLogManager.java - HBase - [mail # dev]
...@Stack: this is an 89-master change.  It should have that tag.  I'll look to figure out why the precommit hook isn't working properly.  On 2/2/12 8:59 PM, "Stack"  wrote:...
   Author: Nicolas Spiegelberg, 2012-02-03, 18:52
Re: hbase 0.94.0 - HBase - [mail # dev]
...Correct.  Sorry for the confusion.  I just meant that we shouldn't get rid of the HFileV1 Reader because it allows online upgrades to happen as compactions happen.  Trying to ...
   Author: Nicolas Spiegelberg, 2012-02-03, 01:24
Re: the occasion of the major compact? - HBase - [mail # user]
...As an aside,  If you can't wait for HBASE-4536 and trunk to get RC'd, you can just add a 'Delete' column to logically serve as a client-side delete marker instead of issuing the actual ...
   Author: Nicolas Spiegelberg, 2012-01-26, 21:22
Re: Changing our logo purple to International Orange (Engineering) - HBase - [mail # dev]
...+1  It's much more visible and bold.  I like the Golden Gate reference...  On 1/11/12 8:42 AM, "Stack"  wrote:  ...
   Author: Nicolas Spiegelberg, 2012-01-11, 22:34
Re: Question about HBase for OLTP - HBase - [mail # user]
...1) Eventual Consistency isn't a problem here.  HBase is a strict consistency system.  Maybe you have us confused with other Dynamo-based Open Source projects? 2) MySQL and other tr...
   Author: Nicolas Spiegelberg, 2012-01-09, 23:18
Re: Code review request for hbase-4120 table priority - HBase - [mail # dev]
...I think we should be really careful here because a laissez-fare attitude will keep the project from reaching a new level of maturity.  There are a number of committers from various comp...
   Author: Nicolas Spiegelberg, 2011-12-13, 03:12
Re: major compaction and regionserver failure... - HBase - [mail # user]
...Andy,  Some detail on the current compaction algorithm.  Major compactions can be triggered in 3 ways:  1) User requested : e.g. From the shell 2) Size based : compact when fi...
   Author: Nicolas Spiegelberg, 2011-12-11, 20:46
Re: Rename "book" to "manual", redux - HBase - [mail # dev]
...+1  On 12/5/11 4:28 PM, "Doug Meil"  wrote:  ...
   Author: Nicolas Spiegelberg, 2011-12-06, 02:29
Re: SequenceFileLogReader uses a reflection hack resulting in runtime failures - HBase - [mail # dev]
...I think it's good to remove the reflection when we can, more because it's easier to catch compile-time errors than run-time.  The perf is negligible when you cache.  As I recall, t...
   Author: Nicolas Spiegelberg, 2011-12-02, 16:39
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