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Re: how to benchmark the whole hadoop cluster performance? - HDFS - [mail # user]
...You can also look at a ) https://github.com/intel-hadoop/HiBench   Regards Ravi Magham   On Mon, Sep 2, 2013 at 12:26 PM, ch huang  wrote:  ...
   Author: Ravi Kiran, 2013-09-02, 13:57
Re: secondary sort - number of reducers - HDFS - [mail # user]
...Adeel,    To add to Yong's  points a)   Consider tuning the number of threads in reduce tasks and the task tracker process.  mapred.reduce.parallel.copies b)   ...
   Author: Ravi Kiran, 2013-08-31, 12:04
Re: sqoop oracle connection error - HDFS - [mail # user]
...Hi ,    Can you check if you are able to ping or telnet to the ip address and port of Oracle database from your machine.  I have a hunch that Oracle Listener is stopped . If s...
   Author: Ravi Kiran, 2013-08-31, 09:15
Re: WritableComparable.compareTo vs RawComparator.compareTo - HDFS - [mail # user]
...Hi Adeel,      The RawComparator is the fastest between the two as you avoid the need to convert the byte stream to Writable objects for comparison .  Regards Ravi Magham...
   Author: Ravi Kiran, 2013-08-31, 07:53
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB