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Re: Big-O Notation for Hadoop - Hadoop - [mail # user]
...I think there is still a long way toward predicting Hadoop job   runtime. The ICDE10 paper listed a lot of limitations of their methods   and is a short paper (4 pgs). In terms of ...
   Author: Hong Tang, 2010-03-03, 06:13
Re: LZO native connector library for Hadoop 0.20.1 - Hadoop - [mail # user]
..."branch-0.1" is for Hadoop 0.18 and 0.20. "trunk" is for Hadoop 0.21   and trunk (0.22).  Please checkout the FAQ section: http://code.google.com/p/hadoop-gpl-compression/wiki/FAQ ...
   Author: Hong Tang, 2010-02-12, 08:59
Re: concurrent write [ is it defined and consistent ? ] - Hadoop - [mail # user]
...Atomic append is useful in contexts like transactional logging and   producer-consumer workload sharing systems. Such usage cases are not   covered by map-reduce programming model....
   Author: Hong Tang, 2009-12-01, 18:56
RESULT: [VOTE] port HADOOP-6218 (Split TFile by Record Sequence Number) to hadoop 0.20/0.21 - Hadoop - [mail # dev]
...With 3 +1's and 0 -1's, the vote passed.  -Hong  On Oct 12, 2009, at 3:55 PM, Hong Tang wrote:  ...
   Author: Hong Tang, 2009-10-16, 21:59
[VOTE] port HADOOP-6218 (Split TFile by Record Sequence Number) to hadoop 0.20/0.21 - Hadoop - [mail # dev]
...HADOOP-6218 exposed the internal "Location" object as a global Record   Sequence Number (RecNum). The feature is useful in a number of ways:   (1) support progress reporting for up...
   Author: Hong Tang, 2009-10-12, 22:55
Re: Parallel data stream processing - Hadoop - [mail # user]
...MapReduce is indeed inherently a batch processing model, where each   job's outcome is deterministically determined by the input and the   operators (map, reduce, combiner) as long...
   Author: Hong Tang, 2009-10-10, 08:05
Re: Hadoop on Windows - Hadoop - [mail # user]
...http://issues.apache.org/jira/browse/HADOOP-4998 is opened for the   purpose of substituting bash calls with library calls. It has been   there for 8 months now and looks like it c...
   Author: Hong Tang, 2009-09-18, 18:05
Re: Edit link on jira. - Hadoop - [mail # general]
...+1  On Jul 23, 2009, at 3:16 PM, Mahadev Konar wrote:  ...
   Author: Hong Tang, 2009-07-23, 23:49
Re: native-lzo library not available issue with terasort - Hadoop - [mail # user]
...Another approach, arguably a bit better in my opinion, is through the   hadoop-gpl-compression project (http://code.google.com/p/hadoop-gpl-compression/  ). It also incorporates Jo...
   Author: Hong Tang, 2009-07-22, 03:57
Re: [VOTE] Back-port TFile to Hadoop 0.20 - Hadoop - [mail # dev]
...Hi all,  WIth 12 +1's and no -1, the vote passed. I will upload a patch for   Hadoop 0.20 shortly.  -Hong...
   Author: Hong Tang, 2009-07-10, 20:43
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