Slightly fuzz the buffer_rollover_size so that buffers don't all try to roll at the same time.
Slightly fuzz the buffer_rollover_size so that buffers don't all try to roll at the same time.

xuejianhai/riak_search,basho/riak_search,wwezhuimeng/riak_search,wwezhuimeng/riak_search,basho/riak_search,xuejianhai/riak_search