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webhdfs read error after successful pig job - HDFS - [mail # user]
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...Hi, I'm having some trouble with webhdfs read after running a Pig job that completed successfully. Here are some details: -I am using Hadoop CDH-4.1.3 and the compatible Pig that...
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Author: Adam Silberstein,
2013-06-14, 16:43
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Many Errors at the last step of copying files from _temporary to Output Directory - HDFS - [mail # user]
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...Hi My environment is like this INPUT FILES ========= 400 GZIP files , one from each server - average size gzipped 25MB REDUCER ====== Uses MultipleOutput OUTPUT ...
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Author: Sanjay Subramanian,
2013-06-14, 16:28
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Re: How to design the mapper and reducer for the following problem - HDFS - [mail # user]
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...Hi My quick and dirty non-optimized solution would be as follows MAPPER ====== OUTPUT from Mapper &nb...
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Author: Sanjay Subramanian,
2013-06-14, 16:15
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[HDFS-4902] DFSClient.getSnapshotDiffReport should use string path rather than o.a.h.fs.Path - HDFS - [issue]
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...org.apache.hadoop.ipc.RemoteException(java.lang.AssertionError): Absolute path required at org.apache.hadoop.hdfs.server.namenode.INode.getPathNames(INode.java:641) at org.apache.hadoop.hdfs...
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http://issues.apache.org/jira/browse/HDFS-4902
Author: Binglin Chang,
2013-06-14, 15:15
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[HDFS-4845] FSEditLogLoader gets NPE while accessing INodeMap in TestEditLogRace - HDFS - [issue]
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...TestEditLogRace fails occasionally because it gets NPE from manipulating INodeMap while loading edits....
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http://issues.apache.org/jira/browse/HDFS-4845
Author: Kihwal Lee,
2013-06-14, 15:15
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How to design the mapper and reducer for the following problem - HDFS - [mail # user]
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...An input file where each line corresponds to a document .Each document is identfied by some fingerPrints .For example a line in the input file is of the following form : input: DOCID1 ...
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Author: parnab kumar,
2013-06-14, 14:06
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Re: Application errors with one disk on datanode getting filled up to 100% - HDFS - [mail # user]
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...Thanks Sandeep. Yes , thats correct , I was more interested to know about the uneven distribution within the DN. Thanks, Rahul On Fri, Jun 14, 2013 at 6:12 PM, Sandeep L wrote: ...
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Author: Rahul Bhattacharjee,
2013-06-14, 13:12
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RE: Application errors with one disk on datanode getting filled up to 100% - HDFS - [mail # user]
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...Rahul, In general most of the times Hadoop tries to compute data locally that is, if run a MapReduce task on particular input, Hadoop will try compute data locally and write data locally(Maj...
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Author: Sandeep L,
2013-06-14, 12:42
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Re: Application errors with one disk on datanode getting filled up to 100% - HDFS - [mail # user]
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...I wasnt aware of data node level balancer procedure , I was thinking about the hdfs balancer . http://wiki.apache.org/hadoop/FAQ#On_an_individual_data_node.2C_how_do_you_balance_the_blocks_o...
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Author: Rahul Bhattacharjee,
2013-06-14, 12:36
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Re: Migration needed when updating within an Hadoop release - HDFS - [mail # user]
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...Hi Björn, You will probably see log messages like 'RPC version mismatch', in this case you have to upgrade the filesystem. If not - all well :) Yes, but not regularly. Please s...
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Author: Alexander Alten-Lorenz,
2013-06-14, 11:23
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