We need a multiget (HBASE-1845). St.Ack
On Thu, Jan 14, 2010 at 1:39 PM, Boris Aleksandrovsky <balek...@gmail.com>wrote: > I have a moderately large HBase table of about 1M rows distributed across 4 > region servers. I also have a requirement to retrieve a 1000 rows from that > table (one can assume keys are randomly distributed) at the same time. I > would ideally like to have a facility to batch read of all 1000 rows at the > same time, but I do not think HBase has such a facility. The only way I was > able to find is to sequentially retrieve one row at a time using Get row > API. Is there a way to improve on it? > > One way I can think of is to create an HTable object pool and issue > concurrent requests to HBase. This would probably help, but I do not expect > for performance to increase X time, where X is the number of threads in my > application. > > Is there a clever way to batch requests, so at least you can issue multiple > row reads to the same region server at the same time? Any other tricks or > suggestions will be appreciated. > > -- > Thanks, > > Boris > http://twitter.com/baleksan > http://www.linkedin.com/in/baleksan >
