Revert "CLOUDSTACK-9348: Make NioConnectio loop less aggressive"

This reverts commit 540d9572fd.

This was reverted because it seemed to be related to an issue
when doing a DeployDC, causing an `addHost` error.

utils/src/main/java/com/cloud/utils/nio/Link.java

@@ -615,10 +615,7 @@ public class Link {
                 case NEED_TASK:
                     Runnable task;
                     while ((task = sslEngine.getDelegatedTask()) != null) {
-                        if (s_logger.isTraceEnabled()) {
-                            s_logger.trace("SSL: Running delegated task!");
-                        }
-                        task.run();
+                        new Thread(task).run();
                     }
                     break;
                 case FINISHED:

utils/src/main/java/com/cloud/utils/nio/NioConnection.java

@@ -171,6 +171,8 @@ public abstract class NioConnection implements Callable<Boolean> {
             } catch (final IOException e) {
                 s_logger.error("Agent will die due to this IOException!", e);
                 throw new NioConnectionException(e.getMessage(), e);
+            } finally {
+                _selector.wakeup();
             }
         }
         _isStartup = false;