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RE: Is FileSystem thread-safe? - HDFS - [mail # user]
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...Thanks! Does this also imply that multiple clients may open the same HDFS file for append simultaneously, and expect append requests to be interleaved? john From: Arpit Agarwal [mailto...
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Author: John Lilley,
2013-05-17, 13:40
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RE: Query mongodb - HDFS - [mail # user]
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...How does one schedule mappers to read MongoDB or HBase in a data-locality-aware fashion? -john From: Mohammad Tariq [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 16, 2013 3:29 AM...
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Author: John Lilley,
2013-01-16, 14:40
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Recommandations for fast OS cloning on cluster - HDFS - [mail # user]
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...Are there standard approaches for setting up a Hadoop cluster "quickly" by cloning most of the data nodes? ...
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Author: John Lilley,
2013-01-16, 14:36
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RE: request on behalf of newbies - HDFS - [mail # user]
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...I think there's quite a few people like me here asking basic questions on the user@ group. From: Monkey2Code [mailto:[EMAIL PROTECTED]] Sent: Sunday, January 13, 2013 2:23 PM To: [EMAI...
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Author: John Lilley,
2013-01-13, 22:52
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RE: Hadoop throughput question - HDFS - [mail # user]
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...Unless the Hadoop processing and the OneFS storage are co-located, MapReduce can't schedule tasks so as to take advantage of data locality. You would basically be doing a distributed c...
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Author: John Lilley,
2013-01-03, 23:09
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RE: Hadoop throughput question - HDFS - [mail # user]
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...Let's suppose you are doing a read-intensive job like, for example, counting records. This is will be disk bandwidth limited. On a 4-node cluster with 2 local SATA on each node y...
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Author: John Lilley,
2013-01-03, 22:15
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