Earning Points. Starwood's Preferred Guest program is fairly straightforward: the more nights you spend at participating hotels, the faster you'll earn a free night.
As seen in the EXECUTING phase, the map will write (using Mapper.Context.write()) its output into a circular in-memory buffer (MapTask.MapOutputBuffer). The size of this buffer is fixed and determined by the configuration parameter mapreduce.task.io.sort.mb (default: 100MB).
Answers. 1  You need to do static port mappings for MAPI. 1) Outlook connects to Exchange on tcp port 135 (RPC Endpoint Mapper). 2) The RPC End Point Mapper returns two tcp ports back on which the communication is to proceed. 2  Hi Pancamo, Remote Procedure Call (RPC) dynamic port allocation is used by Exchange server. When a Outlook /MAPI clients connect to exchange server, RPC dynamic port allocation will instruct the outlook clients to use a particular random port above 1024. So we do not know which ports will be used. There are two ways to resolve this problem: Method 1.