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Re: working with SAS - Hadoop - [mail # user]
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...Hi, hadoop is running on a linux box (mostly) and can run in a standalone installation for testing only. If you decide to use hadoop with hive or hbase you have to face a l...
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Author: alo alt,
2012-02-06, 08:16
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Re: 10 nodes how to build the topological graph - Hadoop - [mail # user]
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...Hi Rock, you mean rack awareness. http://hadoop.apache.org/common/docs/r0.17.2/hdfs_user_guide.html#Rack+Awa reness Here you find examples: http://wiki.apache.org/hadoop/to...
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Author: alo alt,
2012-02-03, 07:55
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Re: Best Linux Operating system used for Hadoop - Hadoop - [mail # user]
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...But Fedora is unstable and not useful for a enterprise stack. I work within the project :) Really nice for PC, but the high update- and fixing rate make it not useable in a big d...
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Author: alo alt,
2012-01-28, 10:27
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Re: Best Linux Operating system used for Hadoop - Hadoop - [mail # user]
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...I suggest CentOS 5.7 / RHEL 5.7 CentOS 6.2 runs also stable - Alex Alexander Lorenz http://mapredit.blogspot.com On Jan 27, 2012, at 10:15 AM, Sujit Dhamale wrote: &...
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Author: alo alt,
2012-01-27, 09:19
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Re: Connect to HDFS running on a different Hadoop-Version - Hadoop - [mail # user]
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...Insight is a IBM related product, based on an fork of hadoop I think. The mixing of totally different stacks make no sense. And will not work, I guess. - Alex Alexan...
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Author: alo alt,
2012-01-25, 12:32
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Re: Task process exit with nonzero status of 134 - Hadoop - [mail # user]
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...Anthony, personally I haven't tested yet, jdk7 have bugs already. Was only a hint to see if the error occurs. I would focus on memory issues, the installed RAM are okay? No errors? My ...
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Author: alo alt,
2011-12-27, 14:07
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Re: MapReduce job failing when a node of cluster is rebooted - Hadoop - [mail # user]
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...Did the DN you've just rebooted connecting to the NN? Mostly the datanode daemon is'nt running, check it: ps waux |grep "DataNode" |grep -v "grep" - ALex On Tue, Dec 27, 2011 at ...
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Author: alo alt,
2011-12-27, 13:55
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Re: MapReduce job failing when a node of cluster is rebooted - Hadoop - [mail # user]
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...Hi, did you set the hdfs-related dirs outside of /tmp? Most *ux systems clean them up on reboot. - Alex On Tue, Dec 27, 2011 at 2:09 PM, Rajat Goel wrote: s) s s s s ...
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Author: alo alt,
2011-12-27, 13:18
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Re: 1gig or 10gig network for cluster? - Hadoop - [mail # user]
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...Hi, recommend or optimum? 10G are the best for optimal rackawareness. If you plan to grow up seriously, start with the best you can effort. Depends on your available investment, I thin...
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Author: alo alt,
2011-12-23, 18:44
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Re: Task process exit with nonzero status of 134 - Hadoop - [mail # user]
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...Hi, take a look into the logs for the failed attempt at your Tasktracker. Also check the system logs with dmesg or /var/log/kern*. Could be a syskill (segfault). - Alex On ...
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Author: alo alt,
2011-12-23, 14:40
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