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Re: are we able to decommission multi nodes at one time? - Hadoop - [mail # user]
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...Yes, you can do the downtime work in steps of 2 DNs at a time, especially since you mentioned the total work would be only ~30mins at most. On Tue, Apr 2, 2013 at 1:46 PM, Henry Junyou...
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Author: Harsh J,
2013-04-02, 08:37
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Re: are we able to decommission multi nodes at one time? - Hadoop - [mail # user]
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...Note though that its only possible to decommission 7 nodes at the same time and expect it to finish iff the remaining 8 nodes have adequate free space for the excess replicas. If you'r...
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Author: Harsh J,
2013-04-02, 07:54
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Re: Reading partition for reducer - Hadoop - [mail # dev]
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...The question should be more specific here: Do you want to process a map's sorted total output or do you want to pre-process a whole partition (i.e. all data pertaining to one reducer)? Forme...
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Author: Harsh J,
2013-04-01, 13:51
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Re: Yarn Writing ApplicationMaster, Client Exception "URISyntaxException: Expected scheme name at index 0" - Hadoop - [mail # user]
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...Thanks Arun; I've filed https://issues.apache.org/jira/browse/YARN-511 On Thu, Mar 28, 2013 at 2:41 AM, Arun C Murthy wrote: Harsh J...
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Author: Harsh J,
2013-03-27, 21:41
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Re: [VOTE] sed bylaws.html -e 's/lazy\s+consensus/consensus approval/gi' - Hadoop - [mail # general]
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...Hi Yves, See the section 'Binding Votes' on http://www.apache.org/foundation/voting.html for some clear text on that. On Wed, Mar 27, 2013 at 9:51 AM, Yves S. Garret wrote:...
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Author: Harsh J,
2013-03-27, 05:26
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Re: For a new installation: use the BackupNode or the CheckPointNode? - Hadoop - [mail # user]
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...David, If the good copy on NFS exists post-crash of the NN, use that for lesser/zero loss than the SNN which can be an hour old (checkpoint period) by default. Thats the whole point fo...
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Author: Harsh J,
2013-03-27, 05:19
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Re: [VOTE] sed bylaws.html -e 's/lazy\s+consensus/consensus approval/gi' - Hadoop - [mail # general]
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...+1 On Mon, Mar 25, 2013 at 11:58 PM, Robert Evans wrote: Harsh J...
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Author: Harsh J,
2013-03-26, 15:23
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Re: Is the input values for reduce method sorted in any order? - Hadoop - [mail # user]
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...MR will partition and sort inputs by keys by the key comparator, and then group them together when reading back via a grouping comparator (which is usually the same as the key comparator). I...
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Author: Harsh J,
2013-03-26, 06:28
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Re: DataNode heartbeat average time peaks - Hadoop - [mail # user]
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...What's your fsimage size? If its too high you would want to control the checkpoint transfer bandwidth to not affect the load at the NN. This is available via the JIRA HDFS-1457. On Mo...
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Author: Harsh J,
2013-03-25, 15:31
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Re: the part of the intermediate output fed to a reducer - Hadoop - [mail # dev]
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...Hi, On Sun, Mar 24, 2013 at 12:00 AM, preethi ganeshan wrote: Great, are you planning to contribute it upstream too? See https://issues.apache.org/jira/browse/MAPREDUCE-199...
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Author: Harsh J,
2013-03-23, 19:56
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