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Re: java.lang.NoSuchMethodError ThreadSafeClientConnManager - HDFS - [mail # user]
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...It shouldn't be cached anywhere but try roll-restarting your tasktrackers after having done the replacement. On Tue, Mar 19, 2013 at 9:55 PM, Aji Janis wrote: Harsh ...
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Author: Harsh J,
2013-03-19, 16:48
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Re: java.lang.NoSuchMethodError ThreadSafeClientConnManager - HDFS - [mail # user]
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...Depending on the version of Hadoop in use, you'd either set mapreduce.task.classpath.user.precedence, mapreduce.user.classpath.first or mapreduce.job.user.classpath.first in your Job's confi...
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Author: Harsh J,
2013-03-19, 16:48
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Re: java.lang.NoSuchMethodError ThreadSafeClientConnManager - HDFS - [mail # user]
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...ZK is showing its runtime JVM classpath (from the JVM that invoked a ZK client), and not the ZK server's classpath. The path reported is the below, which is part of /opt/hadoop/lib itself: &...
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Author: Harsh J,
2013-03-19, 16:19
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Re: Need your help with Hadoop - HDFS - [mail # user]
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...You'd probably want to recheck your configuration of dfs.data.dir on the node16 (perhaps its overriding the usual default), to see if it is perhaps including more dirs than normal (and they ...
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Author: Harsh J,
2013-03-19, 14:57
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Re: On a small cluster can we double up namenode/master with tasktrackers? - HDFS - [mail # user]
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...I think its fine to keep it so long as you also monitor the nodes for issues during heavy load times and tweak slave configs appropriately when some resource is overused. On Mon, Mar 1...
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Author: Harsh J,
2013-03-19, 07:30
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Re: Question regarding job execution - HDFS - [mail # user]
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...I am assuming you refer to the YARN's CapacityScheduler. The CS in YARN does support parallel job (the right term is application, or 'app', not 'job' anymore, when speaking in YARN's c...
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Author: Harsh J,
2013-03-19, 05:54
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Re: disk used percentage is not symmetric on datanodes (balancer) - HDFS - [mail # user]
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...What do you mean that the balancer is always active? It is to be used as a tool and it exits once it balances in a specific run (loops until it does, but always exits at end). The balancer d...
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Author: Harsh J,
2013-03-19, 04:50
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Re: access hadoop cluster from ubuntu on laptop - HDFS - [mail # user]
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...What George's suggested is more of a hack. If you want to write proper impersonation code that works despite the security toggle, follow http://hadoop.apache.org/docs/stable/Secure_Impersona...
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Author: Harsh J,
2013-03-18, 07:24
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Re: OutOfMemory during Plain Java MapReduce - HDFS - [mail # user]
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...Paul's way is much more easier than doing the serialization way I mentioned earlier. I didn't pay attention to the logic used but just the implementation, my bad :) On Fri, Mar 8, 2013...
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Author: Harsh J,
2013-03-09, 00:55
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Re: Job driver and 3rd party jars - HDFS - [mail # user]
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...To be precise, did you use -libjar or -libjars? The latter is the right option. On Fri, Mar 8, 2013 at 12:18 AM, Barak Yaish wrote: Harsh J...
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Author: Harsh J,
2013-03-08, 00:27
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