public void run() {
try {
while (!stopped && !Thread.currentThread().isInterrupted()) {
MapHost host = null;
try {
// If merge is on, block
merger.waitForInMemoryMerge();
// Get a host to shuffle from
host = scheduler.getHost();
metrics.threadBusy();
// Shuffle
copyFromHost(host);
} finally {
if (host != null) {
scheduler.freeHost(host);
metrics.threadFree();
}
}
}
} catch (InterruptedException ie) {
return;
} catch (Throwable t) {
shuffle.reportException(t);
}
}
