Yup , we figured it out eventually.
The artifacts now use the test-jar directive which creates a jar file that you
can reference in mvn using the type tag in your dependencies.
However, fyi, I haven't been able to successfully google for the quintessential
classes in the hadoop test libs like
I'm learning about Hadoop configuration. What is the connection between the
datanode/ tasktracker heap sizes and the mapre.child.java.opts? Does one
have to be exceeded to another?
mapred.child.java.opts are referring to the settings for the JVMs spawned by
the TaskTracker. This JVMs will actually run the tasks (mappers and reducers)
The heap sizes for TaskTrackers and DataNodes are unrelated to those. They run
in their own JVMs each.
Kai
Am 25.11.2013 um 15:52 schrieb
Thanks for the reply. So what is the purpose of heap sizes for tasktrackers
and datanodes then? In other words, if I want to speed up the map/reducing
cycle, can I just minimize the heap size and maximize the
mapred.child.java.opts? or will the minimizing heap sizes causing out of
memory
I'm curious what are some best practices for structuring jars for a
business framework that uses Map/Reduce? Note: This is assuming you aren't
invoking MR manually via the cmd line, but have Hadoop integrated into a
larger business framework that invokes MR jobs programmatically.
By business
I have the following error while running 2.2.0 using cygwin. anyone can
help with the problem ?
/cygdrive/c/hadoop-2.2.0/bin
$ ./hdfs namenode -format
java.lang.NoClassDefFoundError:
org/apache/hadoop/hdfs/server/namenode/NameNode
Caused by: java.lang.ClassNotFoundException:
Can you show us the classpath ?
Cheers
On Tue, Nov 26, 2013 at 2:40 AM, Srinivas Chamarthi
srinivas.chamar...@gmail.com wrote:
I have the following error while running 2.2.0 using cygwin. anyone can
help with the problem ?
/cygdrive/c/hadoop-2.2.0/bin
$ ./hdfs namenode -format
added echo $CLASSPATH in libexec/hadoop-config.sh and here is what it
contains
can Map Reduce will run on HDFS or any other file system ? HDFS is Mandatory
you don't necessarily have to have to hdfs to run mapreduce.
But its recommended :)
On Mon, Nov 25, 2013 at 3:25 PM, RajBasha S rajbash...@ermslive.com wrote:
can Map Reduce will run on HDFS or any other file system ? HDFS is
Mandatory
--
Nitin Pawar
As far as I know, there is no ID3 implementation in mahout currently, but
you can use the decision forest instead.
https://cwiki.apache.org/confluence/display/MAHOUT/Breiman+Example.
2013/11/25 unmesha sreeveni unmeshab...@gmail.com
Is that ID3 classification?
It includes prediction also?
Hi Krishna,
Are you starting all AMs from the same JVM? Mind sharing the code you are
using for your time testing?
Thx
On Thu, Nov 21, 2013 at 6:11 AM, Krishna Kishore Bonagiri
write2kish...@gmail.com wrote:
Hi Alejandro,
I have modified the code in
Yes, I set one up as a test. I had a windows cluster of 3 machines, and added a
4th Linux node. The Data Node was able to connect and replicate, but MR jobs
failed. JobTracker/TaskTracker wasn't translating the path to the data block.
They were telling the Linux node to look in C:\ for the
Hi all, I have been experiencing memory issue while working with Mahout
canopy algorithm on big set of data on Hadoop. I notice that only one
reducer was running while other nodes were idle. I was wondering if
increasing the number of reduce tasks would ease down the memory usage and
speed up
Hi,
I build a customized application master but have some issues, is it
possible for me to remote debug the application master ? Thanks
I have configured the history server of yarn. But it looks like it can only
help me to see the history log of mapreduce jobs. I still could not see the
logs of non-mapreduce job. How can I see the history log of non-mapreduce
job ?
Hi Alejandro,
I don't start all the AMs from the same JVM. How can I do that? Also,
when I do that, that will save me time taken to get AM started, which is
also good to see an improvement in. Please let me know how can I do that?
And, would this also save me time taken for connecting from AM
ok . Thx Yexi
On Tue, Nov 26, 2013 at 1:41 AM, Yexi Jiang yexiji...@gmail.com wrote:
As far as I know, there is no ID3 implementation in mahout currently, but
you can use the decision forest instead.
https://cwiki.apache.org/confluence/display/MAHOUT/Breiman+Example.
2013/11/25 unmesha
You are welcome :)
2013/11/25 unmesha sreeveni unmeshab...@gmail.com
ok . Thx Yexi
On Tue, Nov 26, 2013 at 1:41 AM, Yexi Jiang yexiji...@gmail.com wrote:
As far as I know, there is no ID3 implementation in mahout currently, but
you can use the decision forest instead.
I don't think this is a normal way, and It's not suggested. we can deploy
cluster cross IDC, cross different network, but don't cross OS.
at least currently.
On Tue, Nov 26, 2013 at 6:56 AM, Andrew Machtolff amachto...@askcts.comwrote:
Yes, I set one up as a test. I had a windows cluster of
Krishna,
Well, it all depends on your use case. In the case of Llama, Llama is a
server that hosts multiple unmanaged AMs, thus all AMs run in the same
process.
Thanks.
On Mon, Nov 25, 2013 at 6:40 PM, Krishna Kishore Bonagiri
write2kish...@gmail.com wrote:
Hi Alejandro,
I don't start
hi,maillist:
i run terasort in my hadoop cluster,and it run as a local job,i
do not know why ,anyone can help?
i use hadoop version is CDH4.4
# sudo -u hdfs hadoop jar
/usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples-2.0.0-cdh4.4.0.jar
teragen 1000 /alex/terasort/10G-input
Hi ,
I am reading the yarn code, so wondering whether there's any design
document for the yarn. I found the blog post on hortonworks is very useful.
But more details document would be helpful. Thanks
Do you set to use yarn framework in mapred-site.xml as following ?
property
namemapreduce.framework.name/name
valueyarn/value
/property
On Tue, Nov 26, 2013 at 1:27 PM, ch huang justlo...@gmail.com wrote:
hi,maillist:
i run terasort in my hadoop cluster,and it run as a
Hi,
I working with Capacity Scheduler on YARN and I have configured different
queues. I can able to see all the queues on RM ui. But, when i start to run
MR jobs with configured user names(yarn,mapred), i am unable to run the
Jobs and job are suspended. Again i set default as FIFO working fine.
hi,maillist:
i have a 5-nodes hadoop cluster,today i find a problem ,one
of my job running in the cluster take up all the container and all vcore,so
other jobs need stay in pending status ,my question is
1,how to find the number of all containers in hadoop,and the number of
yes ,i did
# grep -C 3 framework /etc/hadoop/conf/mapred-site.xml
configuration
!-- YARN --
property
namemapreduce.framework.name/name
valueyarn/value
/property
On Tue, Nov 26, 2013 at 1:36 PM, Jeff Zhang jezh...@gopivotal.com wrote:
Do you set to use yarn framework
hi,maillist:
i see apache doc about yarn schema,it says capacity
scheduler became a default scheduler,but what i see in CDH4.4,fifo
scheduler still is default scheduler,why?
hi,maillist:
i find each my container just use 200M heap space,how can i
resize it?
# ps -ef|grep -i yarnchild
yarn 24333 8210 99 14:09 ?00:00:05
/usr/java/jdk1.7.0_25/bin/java -Djava.net.preferIPv4Stack=true
-Dhadoop.metrics.log.level=WARN -Xmx200m
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