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what difference between livereplicas ,excessreplicas and excessblocks? - Hadoop - [mail # user]
...hi,maillist:         i am very confused about the three conception ,because i see noexcessreplicas in metadata dump file,but i see one excess block ,in metricsoutput...
   Author: ch huang, 2014-02-12, 01:34
Which numa policy is the best for hadoop process? - Hadoop - [mail # user]
...hi,maillist:          the numa arch CPU has several policies ,i wonder if anyone hastested it ,and which one is the best? ...
   Author: ch huang, 2014-01-28, 01:06
Re: hadoop report has corrupt block but i can not find any in block metadata - Hadoop - [mail # user]
...and still not find which block corrupt ,i search keyword 'orrupt' ,only get/hbase/.corrupt      ,but it's a dir not corrupt blockOn Sat, Jan 25, 2014 at 6:31 PM, Shekhar Sharm...
   Author: ch huang, 2014-01-26, 00:44
why the empty file need occupy one split? - Hadoop - [mail # user]
...hi,maillist:            i read the code of FileInputFormat,and find it will make a split for empty file,but i think it's no means do such things,and it will cau...
   Author: ch huang, 2013-12-24, 08:00
issue about Shuffled Maps in MR job summary - Hadoop - [mail # user]
...hi,maillist:            i run terasort with 16 reducers and 8 reducers,when i double reducer number, the Shuffled maps is also double ,my question is the job on...
   Author: ch huang, 2013-12-11, 05:25
Re: error in copy from local file into HDFS - Hadoop - [mail # user]
...hi:       you are right,my DN disk is full,i delete some file,now it's worked ,thanks  On Fri, Dec 6, 2013 at 11:28 AM, Vinayakumar B wrote:  ...
   Author: ch huang, 2013-12-06, 03:33
issue about the MR JOB local dir - Hadoop - [mail # user]
...hi,maillist:             i see three dirs on my local MR job dir ,and i do not know these dirs usage,anyone knows?  # ls /data/1/mrlocal/yarn/local/ fileca...
   Author: ch huang, 2013-12-04, 01:26
Re: default capacity scheduler only one job in running status - Hadoop - [mail # user]
...and i did some test,the following is result, i also notice that the user only use 11G memory,due to the resource-calculator is based on memory ,i guess if i let allocate more memory ,it can ...
   Author: ch huang, 2013-11-27, 02:02
why my terasort job become a local job? - Hadoop - [mail # user]
...hi,maillist:           i run terasort in my hadoop cluster,and it run as a local job,i do not know why ,anyone can help?  i use hadoop version is CDH4.4  #...
   Author: ch huang, 2013-11-26, 05:27
Re: issue about add disk on DN - Hadoop - [mail # user]
...这个好像不太合理吧,如果我原来3块盘的话,变成6块盘需要由3个拷贝改成六个拷贝? 那我如果弄完后改回3个拷贝原来的数据还是存6拷贝的呀,那不是浪费空间?  On Thu, Nov 7, 2013 at 9:44 AM, 金杰  wrote:  ...
   Author: ch huang, 2013-11-07, 02:39
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