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Re: Appending to HDFS file - Hadoop - [mail # user]
...would you please past the code in the loop?On Sat, Aug 23, 2014 at 2:47 PM, rab ra  wrote:Regards,*Stanley Shi,* ...
   Author: Stanley Shi, 2014-08-27, 04:16
Re: Local file system to access hdfs blocks - Hadoop - [mail # user]
...I am not sure this is what you want but you can try this shell command:find [DATANODE_DIR] -name [blockname]On Tue, Aug 26, 2014 at 6:42 AM, Demai Ni  wrote:Regards,*Stanley Shi,* ...
   Author: Stanley Shi, 2014-08-27, 04:14
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
Re: how to reduce delay in HDFS restart - Hadoop - [mail # user]
...Do you have a secondary namenode running? Secondary NN is used for thispurpose;Also, if you have HDFS HA enabled, this problem will also not occur.Regards,*Stanley Shi,*On Tue, Jul 22, 2014 ...
   Author: Stanley Shi, 2014-07-24, 05:58
Re: Decommissioning a data node and problems bringing it back online - Hadoop - [mail # user]
...which distribution are you using?Regards,*Stanley Shi,*On Thu, Jul 24, 2014 at 4:38 AM, andrew touchet  wrote: ...
   Author: Stanley Shi, 2014-07-24, 05:54
Re: Managed File Transfer - Hadoop - [mail # user]
...There's a DistCP utility for this kind of purpose;Also there's "Spring XD" there, but I am not sure if you want to use it.Regards,*Stanley Shi,*On Mon, Jul 7, 2014 at 10:02 PM, Mohan Radhakr...
   Author: Stanley Shi, 2014-07-09, 08:40
Re: How do I recover the namenode? - Hadoop - [mail # user]
...This is not recommended.You only backup the fsimage file, the data blocks, which are stored indatanode, are not stored.The chances may be if you removed some file after your fsimage backup,t...
   Author: Stanley Shi, 2014-07-09, 08:25
Re: Huge text file for Hadoop Mapreduce - Hadoop - [mail # user]
...You can get the wikipedia data from it's website, it's pretty big;Regards,*Stanley Shi,*On Tue, Jul 8, 2014 at 1:35 PM, Du Lam  wrote: ...
   Author: Stanley Shi, 2014-07-09, 08:16
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