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Re: Teragen-Terasort>=10GB fails - Hadoop - [mail # user]
...FSError: java.io.IOException: No space left on devicecheck the local disks for enough free tmp space in /hadoop/best,Alexander Alten-Lorenzm: [EMAIL PROTECTED]b: mapredit.blogspot.com ...
   Author: Alexander Alten-Lorenz, 2015-05-27, 12:10
Re: Question about Block size configuration - Hadoop - [mail # user]
...If you set the BS lesser then 64MB, you’ll get into Namenode issues  when a larger file will be read by a client. The client will ask for every block the NN - imagine what happen when y...
   Author: Alexander Alten-Lorenz, 2015-05-12, 05:56
Re: Access on HDFS - Hadoop - [mail # user]
...Per default only hdfs (superuser) has permissions to write into hdfs root (/). Just sudo into hdfs, create the root-folders, change the permissions to your user and start again.BR,Alexander ...
   Author: Alexander Alten-Lorenz, 2015-05-08, 16:31
[expand - 1 more] - Re: Connect c language with HDFS - Hadoop - [mail # user]
...Google:http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/LibHdfs.htmlAlexander Alten-Lorenzm: [EMAIL PROTECTED]b: mapredit.blogspot.com ...
   Author: Alexander Alten-Lorenz, 2015-05-04, 09:12
Re: YARN Exceptions - Hadoop - [mail # user]
...Please have a closer look at the quoted error - the user (User edhdtaesvc not found) doesnt exists in your hadoop installation, which let the MR job fail.BR, ALAlexander Alten-Lorenzm: ...
   Author: Alexander Alten-Lorenz, 2015-04-26, 09:55
Re: Large number of small files - Hadoop - [mail # user]
...Marko,Cassandra is an noSQL DB like HBase for Hadoop is. Pro and cons wouldn't be discussed here.Parquet is an columnar based storage format. It is - high level - a bit like a NoSQL DB, but ...
   Author: Alexander Alten-Lorenz, 2015-04-24, 09:19
Re: ResourceLocalizationService: Localizer failed when running pi example - Hadoop - [mail # user]
...As you said, that looks like a config issue. I would spot on the NM's local scratch dir (yarn.nodemanager.local-dirs). But without a complete stack trace, its a blind call.BR, ALmapredi...
   Author: Alexander Alten-Lorenz, 2015-04-19, 16:00
Re: Data doesn't write in HDFS - Hadoop - [mail # user]
...Hi Have a closer look at:java.io.IOException: File /testing/syncfusion/C#/JMS_message.1427429746967.log.tmp could only be replicated to 0 nodes instead of minReplication (=1).  There ar...
   Author: Alexander Alten-Lorenz, 2015-03-27, 11:07
[expand - 1 more] - Re: Total memory available to NameNode - Hadoop - [mail # user]
...Hi Mich,the book Hadoop Operations may a good start:https://books.google.de/books?id=drbI_aro20oC&pg=PA308&lpg=PA308&dq=hadoop+memory+namenode&source=bl&ots=t_yltgk_i7&sig=_6LXkcSjfuwwqfz_kD...
   Author: Alexander Alten-Lorenz, 2015-03-26, 10:31
Re: Trusted-realm vs default-realm kerberos issue - Hadoop - [mail # user]
...Do you have mapping rules, which tells Hadoop that the trusted realm is allowed to login? http://mapredit.blogspot.de/2015/02/hadoop-and-trusted-mitv5-kerberos-with.html BR, Alex ...
   Author: Alexander Alten-Lorenz, 2015-03-25, 09:29
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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