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lot of attempt_local296445216_0001_m_000386_0 dir in NN dir - Hadoop - [mail # user]
...hi,maillist:          i find many dirs in/data/hadoopmapredlocal/taskTracker/hdfs/jobcache/job_local296445216_0001,it is my mapred local dir ,can i remove it sa...
   Author: ch huang, 2014-03-25, 00:57
issue of "Log aggregation has not completed or is not enabled." - Hadoop - [mail # user]
...hi,maillist:         i try look application log use the following process# yarn application -list                Applica...
   Author: ch huang, 2014-03-18, 07:39
[expand - 4 more] - Re: issue about write append into hdfs "ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: ch12:50010:DataXceiver error processing READ_BLOCK operation " - Hadoop - [mail # user]
...i changed all datanode config add dfs.datanode.max.xcievers value is 131072and restart all DN, still no useOn Fri, Feb 21, 2014 at 12:25 PM, Anurag Tangri wrote: ...
   Author: ch huang, 2014-02-21, 06:09
any optimize suggestion for high concurrent write into hdfs? - Hadoop - [mail # user]
...hi,maillist:          is there any optimize for large of write into hdfs in same time ?thanks ...
   Author: ch huang, 2014-02-21, 01:08
issue abount hdfsWrite: FSDataOutputStream#write error: - Hadoop - [mail # user]
...hi,maillist:         i use scribe write log into hadoop hdfs, but one of my scribereport the problem ,and it seems some problem happen when scribe appenddata to hdfs...
   Author: ch huang, 2014-02-20, 01:02
issure about write append to a file ,and close ,reopen the same file - Hadoop - [mail # user]
...hi,maillist:           i use scribe to receive data from app ,write to hadoop hdfs,whenthe system in high concurrency connectit will cause hdfs error like the f...
   Author: ch huang, 2014-02-14, 01:47
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
[expand - 1 more] - 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
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