added the property timeoutrequests to configuration to disable

TimeoutRequests. The purpose is to test if YaCy runs better on VMs where
there is a limitation of concurrent processes;  see
/proc/user_beancounters in row numproc; this value is limited and should
be low. Try to set timeoutrequests to keep this low. (works only after
restart)

defaults/yacy.init

@@ -1266,6 +1266,9 @@ crawler.userAgent.string = yacybot ($$SYSTEM$$) http://yacy.net/bot.html
 crawler.userAgent.minimumdelta = 500
 crawler.userAgent.clienttimeout = 10000
 
+# experiments with timeout requests
+timeoutrequests = true
+
 # interface decorations
 decoration.audio = false
 decoration.grafics.linkstructure = true

source/net/yacy/cora/protocol/TimeoutRequest.java

@@ -52,6 +52,8 @@ import jcifs.smb.SmbFile;
  */
 public class TimeoutRequest<E> {
 
+    public static boolean enable = true; // for tests
+    
     private final Callable<E> call;
 
     /**
@@ -68,6 +70,12 @@ public class TimeoutRequest<E> {
      * @throws ExecutionException
      */
     public E call(final long timeout) throws ExecutionException {
+        if (!enable) {try {
+            return this.call.call();
+        } catch (final Exception e1) {
+            throw new ExecutionException(e1);
+        }
+        }
         final ExecutorService service = Executors.newSingleThreadExecutor();
         try {
             final Future<E> taskFuture = service.submit(this.call);

source/net/yacy/search/Switchboard.java

@@ -314,6 +314,10 @@ public final class Switchboard extends serverSwitch {
         // set default peer name
         Seed.ANON_PREFIX = getConfig("peernameprefix", "_anon");
 
+        // set timeoutrequests
+        boolean timeoutrequests = getConfigBool("timeoutrequests", true);
+        TimeoutRequest.enable = timeoutrequests;
+        
         // UPnP port mapping
         if ( getConfigBool(SwitchboardConstants.UPNP_ENABLED, false) ) {
             InstantBusyThread.oneTimeJob(UPnP.class, "addPortMappings", 0);