Do you need to scan each n every row within that range?Or you need specific rows based on some filter?
Warm Regards, Tariq https://mtariq.jux.com/ cloudfront.blogspot.com On Fri, Feb 1, 2013 at 9:16 PM, lars hofhansl <[email protected]> wrote: > The scan contract in HBase is that all rows are returned in order, so all > regions have to be traversed in order as well. > It would be nice to add some facility to HBase to performs the scanning in > parallel. > > > > ________________________________ > From: Farrokh Shahriari <[email protected]> > To: [email protected] > Sent: Friday, February 1, 2013 5:52 AM > Subject: Parallel scan in HBase > > Hi there > I have two question about scan in Hbase : > 1) Does scan operation with specific filter run in parallel on different > regionservers ? > 2) I wanna know whether this code runs at client side for searching the > retrieved results or not ? > > for (Result result : scanner1) { > for (KeyValue kv : result.raw()) { > // > // some coeds > // > } > } > > > Farrokh Shahriari >
