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Hbase instalation - MapReduce - [mail # user]
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...Hi, I am trying to run the habse in standaone mode in cygwin. I have the hadoop up and running . When i try the command start-hbase.sh, it shows that zookeeper,regionserver and m...
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Author: Kasi Subrahmanyam,
2013-03-22, 05:48
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Which tool or framework to use? - MapReduce - [mail # user]
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...HI, I have a oracle db which has about 0 tables with millions of rows in them. I have a requirement which involves performing group by on a lot of tables when required, like drilling d...
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Author: Kasi Subrahmanyam,
2013-02-27, 05:55
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CustomInputFormat - MapReduce - [mail # user]
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...Hi, I have a small situation. I need to pass a group of lines as an input to my mapper.The number of lines may vary depending on the situation. Basically those lines are lo...
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Author: Kasi Subrahmanyam,
2013-02-26, 03:44
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Choose an distribution - MapReduce - [mail # user]
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...How to decide which distribution(cloudera,mapr,hortonworks) to use while working on hadoop?...
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Author: Kasi Subrahmanyam,
2013-01-28, 03:35
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Throughput through ganglia - MapReduce - [mail # user]
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...Hi, I have an requirement to get the throughput of cluster to be continously monitored and get the status as a report to mails. How can i get that from ganglia scripts or f...
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Author: Kasi Subrahmanyam,
2013-01-08, 11:12
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Class similar to MultipleInputs - MapReduce - [mail # user]
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...Hi, Do we have any class similar to MultipleInputs of mapred package in the mapreduce package which can take Job as one of the parameters instead of JobConf. Thanks, Subbu...
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Author: Kasi Subrahmanyam,
2013-01-06, 03:13
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Distscp code - MapReduce - [mail # user]
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...Hi Guys, The FsShell class has the code that runs behind for normal operations that we perform on HDFS. Which classs has the code for distscp?...
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Author: Kasi Subrahmanyam,
2013-01-04, 11:47
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Disable sorting in reducer - MapReduce - [mail # user]
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...Hi, Is there any way to disable sorting in the reducer without making the number of reducers zero? I have a need of reducers because i am writing multiple outputs/ Thanks, ...
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Author: Kasi Subrahmanyam,
2012-10-05, 08:59
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Counters across all jobs - MapReduce - [mail # user]
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...Hi, I have around 4 jobs running in a controller. How can i have a single unique counter present in all the jobs and incremented where ever used in a job? For example:Consider a ...
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Author: Kasi Subrahmanyam,
2012-08-28, 08:20
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output File of reducer - MapReduce - [mail # user]
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...Hi i want the reducer output file to be generated based on the key input to the reducer. I tried the MultipleOUtputFormat of text and sequence where the output file name is based on the outp...
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Author: Kasi Subrahmanyam,
2012-07-23, 09:51
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