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[expand - 3 more] - Re: Reduce task hang[EMERGENCE] - MapReduce - [mail # user]
...actuall these are all logs in the stderr, and stdout is empty   On Fri, Jan 3, 2014 at 4:12 PM, Azuryy Yu  wrote:  ...
   Author: Azuryy Yu, 2014-01-03, 08:13
Re: XML to TEXT - MapReduce - [mail # user]
...Hi,  you can use org.apache.hadoop.streaming.StreamInputFormat  using map reduce to convert XML to text.  such as your xml like this:    lll   you need to speci...
   Author: Azuryy Yu, 2014-01-03, 05:52
Re: any suggestions on IIS log storage and analysis? - MapReduce - [mail # user]
...You can run a mapreduce firstly, Join these data sets into one data set. then analyze the joined dataset.   On Mon, Dec 30, 2013 at 3:58 PM, Fengyun RAO  wrote:  ...
   Author: Azuryy Yu, 2013-12-30, 09:13
Re: Estimating the time of my hadoop jobs - MapReduce - [mail # user]
...Hi Kandoi, It depends on: how many cores on each VNode how complicated of your analysis application  But I don't think it's normal spent 3hr to process 30GB data even on your *not good*...
   Author: Azuryy Yu, 2013-12-17, 10:44
Re: How to set "hadoop.tmp.dir" if I have multiple disks per node? - MapReduce - [mail # user]
...Hi Tao,  No, you need to set mapred.local.dir  in the mapred-site.xml with comma separated list of path to spread I/O .   On Mon, Dec 16, 2013 at 5:11 PM, Tao Xiao  wrote...
   Author: Azuryy Yu, 2013-12-16, 09:25
Re: how to create symbolic link in hdfs with c++ code or webhdfs interface? - MapReduce - [mail # user]
...Why enable test flag under non-test environment?   On Mon, Dec 16, 2013 at 11:10 AM, Xiaobin She  wrote:  ...
   Author: Azuryy Yu, 2013-12-16, 05:14
Re: Site-specific dfs.client.local.interfaces setting not respected for Yarn MR container - MapReduce - [mail # user]
...Jeff, DFSClient don't use copied Configuration from RM.  did you add hostname or IP addr in the conf/slaves? if hostname, Can you check /etc/hosts? does there have confilicts? and y &nb...
   Author: Azuryy Yu, 2013-12-16, 04:56
Re: How does mapreduce job determine the compress codec - MapReduce - [mail # user]
...Hi Jiayu, For the Sequence file as an input, CompressCodec class was serialized in the file header, then Sequence Filereader will know the compression algo. thanks.     On Mon, Dec...
   Author: Azuryy Yu, 2013-12-16, 01:53
Re: Can not auto-failover when unplug network interface - MapReduce - [mail # user]
...This is still because your fence method configuraed improperly. plseae paste your fence configuration. and double check you can ssh on active NN to standby NN without password.   On Tue...
   Author: Azuryy Yu, 2013-12-03, 02:26
Re: Heterogeneous Cluster - MapReduce - [mail # user]
...I don't think this is a normal way, and It's not suggested.  we can deploy cluster cross IDC, cross different network, but don't cross OS.  at least currently.   On Tue, Nov 2...
   Author: Azuryy Yu, 2013-11-26, 04:16
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