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Re: Failure to write to HDFS in MapReduce job - Hadoop - [mail # user]
...please check your network issue. generally this was casued by unstablenetwork device.On Wed, Nov 5, 2014 at 5:55 PM, Hayden Marchant  wrote: ...
   Author: Azuryy Yu, 2014-11-06, 02:08
Re: HDFS - Consolidate 2 small volumes into 1 large volume - Hadoop - [mail # user]
...yes, you can.stop the cluster,change your hdfs-site.xml on your datanode. (dfs.datanode.dir) to the largevolume.copy two small data volumes to the large volumes, which was configured onabove...
   Author: Azuryy Yu, 2014-10-22, 01:32
Re: issue about submit job to local ,not to cluster - Hadoop - [mail # user]
...please check your mapred-site.xml is available under conf.On Tue, Oct 21, 2014 at 2:47 PM, ch huang  wrote: ...
   Author: Azuryy Yu, 2014-10-21, 06:50
[expand - 1 more] - Re: hadoop 2.4 using Protobuf - How does downgrade back to 2.3 works ? - Hadoop - [mail # user]
...after upgrade, there are current an previous subdirs in the namenodemetadata directory. so during rollback, just delete current directory andrename previous to current again.On Tue, Oct 21, ...
   Author: Azuryy Yu, 2014-10-21, 05:54
Re: how to copy data between two hdfs cluster fastly? - Hadoop - [mail # user]
...Did you specified how many map tasks?On Fri, Oct 17, 2014 at 4:58 PM, ch huang  wrote: ...
   Author: Azuryy Yu, 2014-10-17, 09:47
[expand - 1 more] - Re: C++ development framework under Hadoop - Hadoop - [mail # user]
...yes. it always supports hadoop pipe in v2.On Wed, Oct 15, 2014 at 11:33 AM, Y Z  wrote: ...
   Author: Azuryy Yu, 2014-10-15, 03:39
[expand - 1 more] - Re: Datanode volume full, but not moving to free volume - Hadoop - [mail # user]
...yes, all blockpool directory names are all same is expected if you don'tconfigure HDFS federation.On Wed, Oct 8, 2014 at 7:39 PM, Brian C. Huffman <[EMAIL PROTECTED]> wrote: ...
   Author: Azuryy Yu, 2014-10-09, 01:15
Re: ETL using Hadoop - Hadoop - [mail # user]
...Hi Moin,Yes, you can replace your ETL using hadoop. but it would be a big change. such as data collection, pre-process, ETL tasks rewrite etc.I don't think there is .NET API in Hadoop.O...
   Author: Azuryy Yu, 2014-10-08, 06:41
Re: Why I cannot delete all the nameNode metadata? - Hadoop - [mail # user]
...To make sure your dfs.namenode.name.dir is by default.then, how did you find /user exists? hdfs dfs -ls ? or you checkeddfs.datanode.data.dir? if the latter, then don't worry.On Wed, Oc...
   Author: Azuryy Yu, 2014-10-08, 04:07
Re: Datanode disk considerations - Hadoop - [mail # user]
...I think Brian gave the answer.On Tue, Oct 7, 2014 at 9:13 PM, Brian C. Huffman <[EMAIL PROTECTED]> wrote: ...
   Author: Azuryy Yu, 2014-10-08, 03:26
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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