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Re: hadoop 2.4.0 - Hadoop - [mail # dev]
...hadoop 2.4.1 is out, this is a hotfix version. If there're no specificreason, you should choose this one.http://hadoop.apache.org/releases.html#30+June%2C+2014%3A+Release+2.4.1+availableOn F...
   Author: Stanley Shi, 2014-10-09, 03:28
Re: Replication factor affecting write performance - Hadoop - [mail # user]
...What's the network setup and topology?Also, the size of the cluster?On Mon, Sep 1, 2014 at 4:10 PM, Laurens Bronwasser <[EMAIL PROTECTED]> wrote:Regards,*Stanley Shi,*  ...
   Author: Stanley Shi, 2014-09-02, 02:31
Re: CPU utilization keeps increasing when using HDFS - Hadoop - [mail # user]
...Would you please give the output of the "top" command? at least to showthat the HDFS process did use that much of CPU;On Mon, Sep 1, 2014 at 2:19 PM, Shiyuan Xiao wrote:Regards,*Stanley Shi,...
   Author: Stanley Shi, 2014-09-01, 06:32
[expand - 2 more] - Re: Local file system to access hdfs blocks - Hadoop - [mail # user]
...*BP-13-7914115-10.122.195.197-14909166276345 is the blockpool information**blk_1073742025  is the block name;**these names are "private" to teh HDFS system and user should not use them,...
   Author: Stanley Shi, 2014-08-29, 06:35
Re: Hadoop 2.5.0 - HDFS browser-based file view - Hadoop - [mail # user]
...Normally files in HDFS are intended to be quite big, it's not very easy tobe shown in the browser.On Fri, Aug 22, 2014 at 10:56 PM, Brian C. Huffman <[EMAIL PROTECTED]> wrote:Regards,*...
   Author: Stanley Shi, 2014-08-28, 06:31
[expand - 1 more] - Re: Appending to HDFS file - Hadoop - [mail # user]
...You should not use this method:FSDataOutputStream fp = fs.create(pt, true)Here's the java doc for this "create" method:  /**   * Create an FSDataOutputStream at the indic...
   Author: Stanley Shi, 2014-08-28, 06:18
Re: What happens when .....? - Hadoop - [mail # user]
...Normally MR job is used for batch processing. So I don't think this is agood use case here for MR.Since you need to run the program periodically, you cannot submit a singlemapreduce job for ...
   Author: Stanley Shi, 2014-08-28, 06:15
Re: Hadoop on Safe Mode because Resources are low on NameNode - Hadoop - [mail # user]
...You can force the namenode to get out of safe mode: hadoop dfsadmin-safemode leaveOn Tue, Aug 26, 2014 at 11:05 PM, Vincent Emonet wrote:Regards,*Stanley Shi,* ...
   Author: Stanley Shi, 2014-08-27, 04:08
[expand - 1 more] - Re: issue about distcp " Source and target differ in block-size. Use -pb to preserve block-sizes during copy." - Hadoop - [mail # user]
...Your client side was running at "14/07/24 18:35:58 INFO mapreduce.Job:T***", But you are pasting NN log at "2014-07-24 17:39:34,255";By the way, which version of HDFS are you using?Regards,*...
   Author: Stanley Shi, 2014-07-25, 08:09
Re: issue about run MR job use system user - Hadoop - [mail # user]
...The "alex" should belongs to "hadoop" group on namenode;Regards,*Stanley Shi,*On Thu, Jul 24, 2014 at 10:11 PM, java8964  wrote: ...
   Author: Stanley Shi, 2014-07-25, 02:28
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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