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[expand - 1 more] - Re: what will happen when HDFS restarts but with some dead nodes - MapReduce - [mail # user]
...Hi Harsh  I have a question. How namenode gets out of safemode in condition of data blocks lost, only administrator? Accordin to my experiences, the NN (0.21) stayed in safemode about s...
   Author: Chen He, 2013-01-30, 16:36
[expand - 2 more] - Re: 回复: compile hadoop failed, src/test/lib does not exist? - MapReduce - [mail # user]
...hmmm... Interesting, I used to modify the fair-sharing scheduler in hadoop 0.21, there was no problem. Which version you are working on?  Chen  On Sat, Oct 13, 2012 at 11:28 AM, Na...
   Author: Chen He, 2012-10-13, 16:34
Re: One petabyte of data loading into HDFS with in 10 min. - MapReduce - [mail # user]
...If it is not a single file, you can upload them using multiple threads to HDFS.  On Wed, Sep 5, 2012 at 7:21 AM, prabhu K  wrote:  ...
   Author: Chen He, 2012-09-05, 14:03
Re: directory delete in hadoop - MapReduce - [mail # user]
...you have to include the hdfs-site.xml and hdfs-default.xml. Because those two files tell you where is the namenode and what is the operation port.  On Wed, Sep 5, 2012 at 6:47 AM, Harsh...
   Author: Chen He, 2012-09-05, 13:56
[expand - 1 more] - Re: Custom InputFormat errer - MapReduce - [mail # user]
...Hi Harsh  That means I have to lose my input data because of Hadoop's FileSplit evenly splits input file according to the "numSplits". But, I want to prevent this. Is there any way? &nb...
   Author: Chen He, 2012-08-30, 02:55
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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