>>You can also specify the remote target with a httpfs or webfdfs url, which >>then you can leverage SSL on the transport.
What if remote cluster has security enabled? Will it work? -Vlad On Thu, Mar 12, 2015 at 1:39 PM, Jerry He <jerry...@gmail.com> wrote: > ExportSnapshot does not use DistCp but directly use FileSystem API to copy, > as Vladimir mentioned. > But ExportSnapshot supports exporting to a remote target cluster. Give the > full hdfs url. > You can also specify the remote target with a httpfs or webfdfs url, which > then you can leverage SSL on the transport. > > You also can copy to local cluster and use DistCp to copy to remote > cluster. > > Jerry > > On Thu, Mar 12, 2015 at 12:28 PM, Vladimir Rodionov < > vladrodio...@gmail.com> > wrote: > > > No, ExportSnapshot does not use DistCp it runs its own M/R job to copy > data > > over to a new destination. > > > > In a map task it uses HDFS API to create/write data to a new destination. > > Therefore, the easiest way to secure communication > > during this operation is to use secure HDFS transport. > > > > > http://www.cloudera.com/content/cloudera/en/documentation/cdh4/v4-3-1/CDH4-Security-Guide/cdh4sg_topic_14_2.html > > > > but there is caveat ... > > > > ExportSnapshot does not support external cluster configuration - you > can't > > provide path to external cluster config dir. This seems like a good > feature > > request. > > > > -Vlad > > > > > > > > > > On Thu, Mar 12, 2015 at 10:38 AM, Akmal Abbasov < > akmal.abba...@icloud.com> > > wrote: > > > > > Hi, I am new to Hadoop Hbase. I have a Hbase cluster in one datacenter, > > > and I need to create a backup in the second one. Currently the second > > > HBase cluster is ready, and I would like to import data from first > > cluster. > > > I would like to use exportSnapshot tool for this, I’ve tried it one my > > > test environment, and it worked well. > > > But, since know I am going to export to a different cluster in > different > > > datacenter, I would like to be sure that my data is secure. So how I > can > > > make exportSnapshot secure? > > > As far as I understood exportSnapshot uses distcp tool to copy snapshot > > to > > > destination cluster, so in this case is it enough to configure distcp? > > > Thank you! > > >
