long secsSinceStart =
(System.currentTimeMillis()-startTime)/1000+1;
float mbs = ((float)reduceShuffleBytes.getCounter())/(1024*1024);
float transferRate = mbs/secsSinceStart;
copyPhase.startNextPhase();
copyPhase.setStatus("copy (" + numCopied + " of " + numMaps
+ " at " +
mbpsFormat.format(transferRate) + " MB/s)");
// Note successful fetch for this mapId to invalidate