For first question about clone from snapshot, there is no copy of snapshot involved. The clone is made from the snapshot itself.
Cheers On Apr 2, 2014, at 4:23 AM, R W <[email protected]> wrote: > Hi Esteban > > I checked the snapshot feature and tried myself, it's very good, one of the > introduction > http://blog.cloudera.com/blog/2013/03/introduction-to-apache-hbase-snapshots/mentioned > about: > > Clone a snapshot: This operation creates a new table using the same schema >> and with the same data present in the specified snapshot. The result of >> this operation is a new fully functional table that can can be modified >> with no impact on the original table or the snapshot. > > > I think this clone operation will make a copy of the snapshot, then create > the new table from the copy of the snapshot, am i correct? Otherwise, > modification to the new table will change the snapshot, right? > > Another question, if we want to backup hbase data somewhere else, it seems > we cannot go with snapshot feature, we want the data to be backup even > after the whole Hadoop cluster down, any idea? > > Thanks > aij > > > On Wed, Apr 2, 2014 at 2:12 PM, Esteban Gutierrez <[email protected]>wrote: > >> Hello Aij, >> >> Snapshots are the suggested method since HBase 0.94.6, they provide better >> consistency for backing up data in HBase. You can find more information in >> the HBase Book here: >> >> https://hbase.apache.org/book.html#ops.snapshots >> >> Depending on your use case and resources you might want to consider >> replication as well: >> >> http://hbase.apache.org/replication.html >> >> cheers, >> esteban. >> >> >> -- >> Cloudera, Inc. >> >> >> >> On Tue, Apr 1, 2014 at 10:56 PM, R W <[email protected]> wrote: >> >>> Hi Guys >>> >>> I'm using hbase org.apache.hadoop.hbase.mapreduce.Export >>> / org.apache.hadoop.hbase.mapreduce.Import to backup and restore HBase >>> data, at least it's good to me, i would like to know if there are any >>> better solutions or practices on how to backup HBase data, that will be >>> really helpful for us, thanks. >>> >>> Cheers >>> aij >>
