Hi, That means if i have cluster with 5 data nodes,i can have mappers upto 5. more mappers means more throughput. Am I correct?
Thanks -OC On Thu, Dec 5, 2013 at 7:31 PM, Matteo Bertozzi <[email protected]>wrote: > to make it simple, the number of mappers is the number of "machines" that > you want to use. > each machine will get N files to copy based on: total files to export / > nmappers > > Matteo > > > > On Thu, Dec 5, 2013 at 12:58 PM, oc tsdb <[email protected]> wrote: > > > Hi, > > > > > > While exporting HBase snapshots we need to specify number of mappers to > use > > as mentioned below.To get better performance how many mappers can be used > > and please let us know based on which parameters we need to decide on > > number of mappers to use.I am new to HBase. > > > > Please refer if there are good link on this. > > > > $ bin/hbase class org.apache.hadoop.hbase.snapshot.tool.ExportSnapshot > > -snapshot MySnapshot -copy-to hdfs:///srv2:8082/hbase -mappers 16 > > > > > > Thanks > > -OC > > >
