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Re: Hadoop 2.6.0 Error - Hadoop - [mail # user]
...please also set correct JAVA_HOME in hadoop-env.sh.On Wed, Mar 25, 2015 at 1:53 PM, Anand Murali  wrote: ...
   Author: Azuryy Yu, 2015-03-25, 06:51
Re: Something about the Snappy Compression Tool - Hadoop - [mail # user]
...Hi,You should compile Hadoop source code with -Drequire.snappy, such as:mvn -DskipTests -Pnative,dist -Dtar,require.snappy packagebut you also need to install snappy before your compiling..O...
   Author: Azuryy Yu, 2015-03-25, 04:07
Re: Passing an array of float type to mapper class - Hadoop - [mail # user]
...please take a look at LongWritable.java, you need to implement a similiarclass.On Wed, Mar 18, 2015 at 3:43 PM, Vandana kumari wrote: ...
   Author: Azuryy Yu, 2015-03-18, 08:31
Re: Unable to see application in http://localhost:8088/cluster/apps - Hadoop - [mail # user]
...Did you start JHS(job history server)?On Wed, Mar 18, 2015 at 1:51 AM, Ravi Prakash  wrote: ...
   Author: Azuryy Yu, 2015-03-18, 03:36
Re: Prune out data to a specific reduce task - Hadoop - [mail # user]
...Hi,Can you set only one reduce task? why did you want set up two reudce tasksand only one work?On Mon, Mar 16, 2015 at 9:04 AM, Drake민영근  wrote: ...
   Author: Azuryy Yu, 2015-03-16, 08:08
[expand - 1 more] - Re: Snappy Configuration in Hadoop2.5.2 - Hadoop - [mail # user]
...yes. please add in the yarn-site.xml:      yarn.nodemanager.admin-env   MALLOC_ARENA_MAX=$MALLOC_ARENA_MAX,LD_LIBRARY_PATH=$HADOOP_COMMON_HOME/lib/native:/...
   Author: Azuryy Yu, 2015-03-16, 08:01
[expand - 4 more] - Re: File is not written on HDFS after running libhdfs C API - Hadoop - [mail # user]
...You don't need to start Yarn if you only want to write HDFS using C API.and you also don't need to restart HDFS.On Thu, Mar 5, 2015 at 4:58 PM, Alexandru Calin wrote: ...
   Author: Azuryy Yu, 2015-03-05, 09:11
Re: Need advice about OLAP on Hadoop - Hadoop - [mail # user]
...Hi VK,I have a similar requirement. we need a real time data analysis platform.Actually, you don't pay more attention on the Spark or Apache Drill,because data for LOAP cubes was calculated ...
   Author: Azuryy Yu, 2015-03-05, 06:32
Re: Can't list files in a federation of HDFS - Hadoop - [mail # user]
...For HDFS federation,  data share all datanodes, but namespace is separate,so did you write some data on hadoop-coc-2 namespace?  you don't need tologin hadoop-coc-2 then write data...
   Author: Azuryy Yu, 2015-03-05, 06:14
Re: The Activities of Apache Hadoop Community - Hadoop - [mail # user]
...That's good to know,On Tue, Mar 3, 2015 at 8:12 PM, Akira AJISAKA wrote: ...
   Author: Azuryy Yu, 2015-03-05, 02:23
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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