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Re: basic question about rack awareness and computation migration - Hadoop - [mail # user]
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...Your concern is correct: If your input is a list of files, rather than the files themselves, then the tasks would not be data-local - since the task input would just be the list of files, an...
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Author: Harsh J,
2013-03-06, 01:39
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Re: [Vote] Merge branch-trunk-win to trunk - Hadoop - [mail # dev]
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...Thanks Suresh. Regarding where; we can state it on http://wiki.apache.org/hadoop/HowToContribute in the test-patch section perhaps. +1 on the merge. On Mon, Mar 4, 2013 at 11:39 ...
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Author: Harsh J,
2013-03-05, 01:42
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Re: [Vote] Merge branch-trunk-win to trunk - Hadoop - [mail # dev]
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...Have we agreed (and stated it somewhere proper) that a -1 obtained for a Windows CI build for a test-patch will not block the ongoing work (unless it is Windows specific) and patches may sti...
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Author: Harsh J,
2013-03-04, 04:50
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Re: Technical question on Capacity Scheduler. - Hadoop - [mail # dev]
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...On Sun, Mar 3, 2013 at 1:41 PM, Jagmohan Chauhan <[EMAIL PROTECTED] Are you reading the YARN CapacityScheduler or the older, MRv1 one? I'd suggest reading the newer one for any imp...
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Author: Harsh J,
2013-03-03, 10:41
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Re: namenode is failing - Hadoop - [mail # user]
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...If you move the NN dir, you also have to move its older location's contents there before starting the NN. On Thu, Feb 28, 2013 at 1:28 PM, Mohit Vadhera wrote: Harsh...
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Author: Harsh J,
2013-02-28, 08:16
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Re: MapReduce job over HBase-0.94.3 fails - Hadoop - [mail # user]
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...Hi Bhushan, Please email the [EMAIL PROTECTED] lists for any Apache Hadoop user-related questions (instead of sending it to me directly this way). You can subscribe by following instru...
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Author: Harsh J,
2013-02-25, 08:58
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Re: childerror - Hadoop - [mail # user]
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...Given your other thread post, I'd say you may have an inconsistency in the JDK deployed on the cluster. We generally recommend using the Oracle JDK6 (for 1.0.4). More details on which versio...
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Author: Harsh J,
2013-02-25, 07:27
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Re: Slow MR time and high network utilization with all local data - Hadoop - [mail # user]
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...Hi Robert, How are you measuring the network usage? Note that unless short circuit reading is on, data reads are done over a local socket as well, and may appear in network traffic obs...
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Author: Harsh J,
2013-02-25, 07:22
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Re: APIs to move data blocks within HDFS - Hadoop - [mail # dev]
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...There's no filesystem (i.e. client) level APIs to do this, but the Balancer tool of HDFS does exactly this. Reading its sources should let you understand what kinda calls you need to make to...
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Author: Harsh J,
2013-02-22, 19:17
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Re: Locks in HDFS - Hadoop - [mail # user]
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...Hi Abhishek, I fail to understand what you mean by that; but HDFS generally has no client-exposed file locking on reads. There's leases for preventing multiple writers to a single file...
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Author: Harsh J,
2013-02-22, 16:09
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