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Re: I am trying to run a large job and it is consistently failing with timeout - nothing happens for 600 sec - Hadoop - [mail # user]
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...I KNOW is is a task timeout - what I do NOT know is WHY merely cutting the number of writes causes it to go away. It seems to imply that some context.write operation or something downstream ...
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Author: Steve Lewis,
2012-01-18, 23:46
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Re: outputhttp error may be log issue but the cluster is pretty sick - Hadoop - [mail # user]
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...Where do I find the TT logs On Oct 29, 2011 1:06 PM, "Harsh J" wrote: ...
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Author: Steve Lewis,
2011-10-30, 00:06
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Re: Externally submitted MapReduce Job Fails at Startup Help Please... - Hadoop - [mail # user]
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...Did you build a jar file for your job and did you put mysql-cinnector,jar in its lib directory??? I have had this work for me On Fri, Oct 28, 2011 at 12:56 PM, Jamal x wrote: &nb...
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Author: Steve Lewis,
2011-10-29, 20:00
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outputhttp error may be log issue but the cluster is pretty sick - Hadoop - [mail # user]
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...I have been getting error in my output saying error reading task outputhttp - I read that this may be a logging issue but do not know how or where to look for problems - when I go to t...
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Author: Steve Lewis,
2011-10-29, 17:41
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I need help reducing reducer memory - Hadoop - [mail # user]
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...I have problems with reduce tasks failing with GC overhead limit exceeded My reduce job retains a small amount of data in memory while processing each key discarding it after the key is hand...
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Author: Steve Lewis,
2011-10-25, 20:38
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Any suggestion on why I cannot talk to hdfs over a VPN - Hadoop - [mail # user]
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...I have code to talk to a remote cluster where host = "myhost:" and port 9000 String connectString = "hdfs://" + host + ":" + port + "/"; ...
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Author: Steve Lewis,
2011-10-07, 19:03
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I need help talking to HDFS over a firewall - Hadoop - [mail # user]
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... I have a small piece of code which opens hdfs. When I run the code my a machine riunning Windows 7 from work it connects perfectly String host = "myhost" int port = 9000;...
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Author: Steve Lewis,
2011-09-24, 00:19
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Re: Starting a Hadoop job outside the cluster - Hadoop - [mail # user]
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...My Reducer code says this: public static class Reduce extends Reducer { private boolean m_DateSent; /** &nbs...
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Author: Steve Lewis,
2011-05-31, 16:57
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Re: Starting a Hadoop job outside the cluster - Hadoop - [mail # user]
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...I have tried what you suggest (well sort of) a goof example would help alot - My reducer is set to among other things emit the local os and user.dir - when I try running from my windows box ...
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Author: Steve Lewis,
2011-05-31, 15:45
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Starting a Hadoop job outside the cluster - Hadoop - [mail # user]
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...When I want to launch a hadoop job I use SCP to execute a command on the Name node machine. I an wondering if there is a way to launch a Hadoop job from a machine that is not on the cluster....
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Author: Steve Lewis,
2011-05-28, 19:26
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