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Re: Multi-Master Hadoop Configuration - Hadoop - [mail # dev]
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...Yes. Only one master, called name-node, is managing HDFS, and only one master, called job tracker, is managing MapReduce cluster. You can also read some online documentation, may be even pub...
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Author: Konstantin Shvachko,
2010-10-28, 21:09
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Re: bringing the codebases back in line - Hadoop - [mail # general]
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...Milind's point is valid, the PMC cannot demand or control what Yahoo, Facebook, et. al. run in their productions, or what Couldera sells to their customers AS LONG AS ...
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Author: Konstantin Shvachko,
2010-10-22, 17:36
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Re: Questions about BN and CN - Hadoop - [mail # user]
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...Hi Shen, Why do we need CheckpointNode? 1. First of all it is a compatible replacement of SecondaryNameNode. 2. Checkpointing is also needed for periodically compacting edits. You can ...
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Author: Konstantin Shvachko,
2010-09-24, 01:20
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Re: How to disable secondary node - Hadoop - [mail # user]
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...If a CheckpointNode or a BackupNode is used then the SecondaryNameNode should be disabled. On 9/9/2010 7:59 AM, Edward Capriolo wrote:...
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Author: Konstantin Shvachko,
2010-09-22, 21:24
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Re: Questions about BN and CN - Hadoop - [mail # user]
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...The CheckpointNode creates checkpoints of the namespace, but does not keep an up-to-date state of the namespace in memory. If primary NN fails CheckpointNode can only provide an old state of...
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Author: Konstantin Shvachko,
2010-09-22, 21:20
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[HADOOP-584] Calling shell scripts from build.xml discriminates Windows user minority. - Hadoop - [issue]
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...This is introduced by HADOOP-567.The problem is that now I cannot even build hadoop in Eclipse under Windows unless I run it under Cygwin. This is in a way the same as calling make in build....
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http://issues.apache.org/jira/browse/HADOOP-584
Author: Konstantin Shvachko,
2010-08-26, 20:59
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Re: [VOTE] Pig to become a TLP - Hadoop - [mail # general]
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...+1 hereby pursuant to proposal On 8/23/2010 10:38 AM, Alan Gates wrote:...
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Author: Konstantin Shvachko,
2010-08-25, 00:16
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Re: [VOTE] Combine MapReduce/HDFS Committers - Hadoop - [mail # general]
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...0 My thinking is that while MR and HDFS are the same product, we can have joint committership. If split happens there is no reason to have common committers, like nobody is raising a q...
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Author: Konstantin Shvachko,
2010-08-20, 00:50
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Re: [VOTE] Should we define the Common committers as HDFS + MapReduce committers? - Hadoop - [mail # general]
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...+1 Do I understand correctly, with this proposal there will be no common only committers? That is, there will be no committers to common who are not either HDFS or MR committers. ...
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Author: Konstantin Shvachko,
2010-08-18, 17:59
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Re: [DISCUSSION] Combine committer lists in Common/HDFS/MapReduce - Hadoop - [mail # general]
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... On 8/9/2010 9:26 AM, Doug Cutting wrote: > On 08/08/2010 12:21 PM, Arun C Murthy wrote: >> This of course begs a larger question - should we just merge Common, &nb...
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Author: Konstantin Shvachko,
2010-08-10, 00:40
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