I have written some code to avoid thrift reconnection, it just keeps the connection open between get_range_slices calls. I can extract that and put it up but not until early next week.
/Johan On 23 apr 2010, at 05.09, Jonathan Ellis wrote: > That would be an easy win, sure. > > On Thu, Apr 22, 2010 at 9:27 PM, Joost Ouwerkerk <jo...@openplaces.org> wrote: >> I was getting client timeouts in ColumnFamilyRecordReader.maybeInit() when >> MapReducing. So I've reduced the Range Batch Size to 256 (from 4096) and >> this seems to have fixed my problem, although it has slowed things down a >> bit -- presumably because there are 16x more calls to get_range_slices. >> While I was in that code I noticed that a new client was being created for >> each batch get. By decreasing the batch size, I've increased this >> overhead. I'm thinking of re-writing ColumnFamilyRecordReader to do some >> connection pooling. Anyone have any thoughts on that? >> joost. >>
