Hi, There's a row counter app in the hbase release that's a m/r job. You could also do a dynamic counter too.
Sent from a remote device. Please excuse any typos... Mike Segel On May 1, 2011, at 8:44 AM, Wojciech Langiewicz <[email protected]> wrote: > Hi, > I would like to know if there's a way to quickly count number of rows from > scan result? > Right now I'm iterating over ResultScanner like this: > int count = 0; > for (Result rr = scanner.next(); rr != null; rr = scanner.next()) { > ++count; > } > But with number of rows reaching millions this takes a while. > I tried to find something in documentation, but I didn't found anything. > I would like to use HBase API, not MR job (because this cluster only has HDFS > and HBase installed). > > Thanks for all help. > > -- > Wojciech Langiewicz >
