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RE: [DISCUSS] Clarification on Compatibility Policy: Upgraded Client + Old Server - MapReduce - [mail # dev]
...+1, I agree with your point Chris. It depends on the client application how they using the hdfs jars in their classpath.As implementation already supports the compatibility (through protobuf...
   Author: Vinayakumar B, 2014-03-20, 04:26
RE: JAVA cannot execute binary file - MapReduce - [mail # user]
...Hi,  It really does not matter in OS whether any double slashes are there in the path or not. Always OS will normalize it.  Problem could be, your java installation might not be ma...
   Author: Vinayakumar B, 2014-01-08, 05:04
RE: How to set "hadoop.tmp.dir" if I have multiple disks per node? - MapReduce - [mail # user]
...Hi,  hadoop.tmp.dir is not the exact configuration you are looking for spreading the disk I/O  This is the default base directory ( its single directory not multiple) used in case ...
   Author: Vinayakumar B, 2013-12-16, 09:27
RE: MiniDFSCluster setup - MapReduce - [mail # user]
...Hi Kareem,  Hi See that issue you are facing is https://issues.apache.org/jira/browse/HADOOP-9908,  It expectes common-version-info.properties to be present under classes directory...
   Author: Vinayakumar B, 2013-12-16, 01:53
RE: issue about Shuffled Maps in MR job summary - MapReduce - [mail # user]
...It looks simple, :)  Shuffled Maps= Number of Map Tasks * Number of Reducers  Thanks and Regards, Vinayakumar B  From: ch huang [mailto:[EMAIL PROTECTED]] Sent: 11 December 20...
   Author: Vinayakumar B, 2013-12-11, 05:48
RE: how to handle the corrupt block in HDFS? - MapReduce - [mail # user]
...Hi ch huang,  It may seem strange, but the fact is, CorruptBlocks through JMX or http://NNIP:50070/jmx means "Number of blocks with corrupt replicas". May not be all replicas are corrup...
   Author: Vinayakumar B, 2013-12-11, 01:21
RE: error in copy from local file into HDFS - MapReduce - [mail # user]
...Hi Ch huang,     Please check whether all datanodes in your cluster have enough disk space and number non-decommissioned nodes should be non-zero.  Thanks and regards, Vinayak...
   Author: Vinayakumar B, 2013-12-06, 03:28
Re: Path exception when running from inside IDE. - MapReduce - [mail # user]
...In your eclipse classpath core-site.xml is there? Directory which contains site xmls should be there in classpath. Not directly xml files.  Make sure fs.defaultFS points to correct hdfs...
   Author: Vinayakumar B, 2013-11-02, 12:54
Re: hadoop cares about /etc/hosts ? - MapReduce - [mail # user]
...Ensure that for each ip there is only one hostname configured in /etc/hosts file.  If you configure multiple different hostnames for same ip then os will chose first one when finding ho...
   Author: Vinayakumar B, 2013-09-10, 15:13
RE: High Availability - second namenode (master2) issue: Incompatible namespaceIDs - MapReduce - [mail # user]
...Hi,     If you are moving from NonHA (single master) to HA, then follow the below steps.  1.       Configure the another namenode's configuration in the running...
   Author: Vinayakumar B, 2012-11-16, 08:31
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