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Re: OSGi and classloaders - HDFS - [mail # dev]
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...Guillaume, I am not super familiar with OSGi. I have used it a little in the past, but that was 5+ years ago. I am in favor of something that will fix the CLASSPATH problem...
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Author: Robert Evans,
2012-07-09, 14:37
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Re: Data block placement in HDFS - HDFS - [mail # user]
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...I think this deals more with our messed up version numbering then anything. Hadoop-1.0 is not a release that is derived from Hadoop 0.21 or 0.22, it comes from the 0.20 line. &n...
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Author: Robert Evans,
2012-07-03, 19:06
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Re: send a file to a Hadoop Cluster from outside - HDFS - [mail # user]
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...It sounds like you don't have the same configuration on this new machine an d on the cluster. You probably want to talk with the group that runs the c luster so that they can give you ...
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Author: Robert Evans,
2012-06-27, 15:55
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Re: ioreply - HDFS - [mail # dev]
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...It definitely sounds interesting, kind of like gridmix. I think that there are three big issues here. 1. Where are you going to store all of the data, or are you jus...
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Author: Robert Evans,
2012-04-30, 16:05
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Re: - HDFS - [mail # user]
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...I believe that hsql was only used as part of our tests, and if it was inclu ded in the full release it was probably included by accident. This may be a side effect of us switchin...
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Author: Robert Evans,
2012-04-19, 21:20
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Re: Copy file using Webhdfs - HDFS - [mail # user]
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...Copying files has always involved downloading the data and then uploading i t again. This is true of both FileUtils, and -cp from the command line. IT really would be great to ha...
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Author: Robert Evans,
2012-04-16, 13:59
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Re: Yahoo Hadoop Tutorial with new APIs? - HDFS - [mail # user]
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...I am dropping the cross posts and leaving this on common-user with the othe rs BCCed. Marcos, That is a great idea to be able to update the tutorial, especially if the c ommunity...
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Author: Robert Evans,
2012-04-04, 21:29
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Re: Proposal: abandon protocol translator layer for cluster-internal RPCs - HDFS - [mail # dev]
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...I think what we are talking about here is removing some of the extra layers of abstraction in java. The wire protocol used will be identical in eithe r case. It is just tha...
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Author: Robert Evans,
2012-03-19, 15:11
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Re: Combining AVRO files efficiently within HDFS - HDFS - [mail # user]
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...Frank, That depends on what you mean by combining. It sounds like you are trying t o aggregate data from several days, which may involve doing a join so I wou ld say a MapReduce job is...
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Author: Robert Evans,
2012-01-06, 16:46
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Re: replication in HDFS - HDFS - [mail # dev]
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...Our largest cluster is several thousand nodes and we still run with a repli cation factor of 3. We have not seen any benefit from having a larger repl ication factor except when it is ...
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Author: Robert Evans,
2011-11-01, 14:09
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