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Re: Reg: Map output copy failure - HDFS - [mail # user]
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...What was the job or query you were running? Couple of suggestions: 1. Reduce data set size with job chaining 2. Increase Reduce task heap 3. If you are using Hive/Pig, you may want to ...
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Author: Bharath Mundlapudi,
2012-12-11, 02:09
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Re: Strange machine behavior - HDFS - [mail # user]
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...Are you seeing any performance impact with this cache increase? It is normal in linux system to grab high cache level. -Bharath ________________________________ Fro...
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Author: Bharath Mundlapudi,
2012-12-11, 02:06
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[HDFS-1592] Datanode startup doesn't honor volumes.tolerated - HDFS - [issue]
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...Datanode startup doesn't honor volumes.tolerated for hadoop 20 version....
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http://issues.apache.org/jira/browse/HDFS-1592
Author: Bharath Mundlapudi,
2012-11-26, 11:23
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[HDFS-2065] Fix NPE in DFSClient.getFileChecksum - HDFS - [issue]
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...The following code can throw NPE if callGetBlockLocations returns null.If server returns null List<LocatedBlock> locatedblocks = callGetBlockLocations(n...
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http://issues.apache.org/jira/browse/HDFS-2065
Author: Bharath Mundlapudi,
2012-09-12, 03:11
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[HDFS-2137] Datanode Disk Fail Inplace - HDFS - [issue]
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...This sub-task will be a place holder for all the disk fail inplace issues related to Datanode....
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http://issues.apache.org/jira/browse/HDFS-2137
Author: Bharath Mundlapudi,
2012-03-14, 04:06
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Re: Why total node just 1 - HDFS - [mail # user]
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...Hi Martinus, As Harsha mentioned, HA is under development. Couple of things you can do for HOT-COLD setup are: 1. Multiple dirs for ${dfs.name.dir} 2. Place ${dfs.name.dir}...
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Author: Bharath Mundlapudi,
2012-01-04, 17:45
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Re: Why total node just 1 - HDFS - [mail # user]
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...You might want to check the datanode logs. Go to the 3 remaining nodes which didn't start and restart the datanode. -Bharath On Sun, Jan 1, 2012 at 7:23 PM, Martinus Martinus wro...
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Author: Bharath Mundlapudi,
2012-01-02, 18:20
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Re: What if one of the directory(dfs.name.dir) rw error ? - HDFS - [mail # user]
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...Couple of things you c ould do. chmod 000 is one. 1. umount -l 2. mount ro only 3. If machin e has hot swappable disks, pull out a disk. -Bharath ______ __________________...
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Author: Bharath Mundlapudi,
2011-05-25, 20:08
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Re: Starting Datanode - HDFS - [mail # user]
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...I think, that code is there for jsvc. If you run hadoop in secure mode, it executes this path. There is nothing wrong in -jvm option since it meant fo r jsvc. In case of secure ...
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Author: Bharath Mundlapudi,
2011-05-21, 20:51
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Re: Question about hadoop namenode -format -clusterid <clusterID> - HDFS - [mail # dev]
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...Correct way to format a namenode : /bin/hdfs namenode -form at -clusterid PS: Set your environment right like common home et c. Only first time it requires the cluster id...
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Author: Bharath Mundlapudi,
2011-05-12, 04:06
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