Backup / HDFS export This charm has an action called 'backup-hdfs' which will perform a distcp to a destination hadoop namenode. By default, the entire hdfs fs will be copied with the -update flag, ...

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This paper proposes The High Availability Method using Heartbeat and DRBD on Hadoop Namenode Failover. Implementation of Hadoop as computing process framework and media storage needs to be supported ...

As a platform for doing analytics on large datasets that is much less costly than would be possible with parallel data warehouses, Hadoop and its myriad extensions and modified underpinnings has ...

Much progress was made with the launch of Hadoop version 2 last year, which brought automated mechanisms for handling a NameNode failover and maintaining continuous access to HDFS services. Whereas ...

If you set up pseudo-distributed (or distributed) Hadoop, you'll gain the benefit of two spartan-but-useful Web interfaces. The NameNode Web interface allows you to browse logs and browse the Hadoop ...

"There is something incredibly important about this process," Sherry continued, "and it has taken 40 years of computer science research to get to what we have here today. That execution plan is the ...