diff --git a/htroot/PerformanceQueues_p.java b/htroot/PerformanceQueues_p.java
index 289bd3d5e..c6651b9ad 100644
--- a/htroot/PerformanceQueues_p.java
+++ b/htroot/PerformanceQueues_p.java
@@ -180,7 +180,6 @@ public class PerformanceQueues_p {
 
                 // check values to prevent short-cut loops
                 if (idlesleep < 1000) idlesleep = 1000;
-                if (threadName.equals("10_httpd")) { idlesleep = 0; busysleep = 0; memprereq = 0; loadprereq = 9; }
 
                 sb.setThreadPerformance(threadName, idlesleep, busysleep, memprereq, loadprereq);
                 idlesleep = sb.getConfigLong(threadName + "_idlesleep", idlesleep);
@@ -194,7 +193,6 @@ public class PerformanceQueues_p {
                 loadprereq = Double.parseDouble(d(defaultSettings.get(threadName + "_loadprereq"), String.valueOf(memprereq)));
                 // check values to prevent short-cut loops
                 if (idlesleep < 1000) idlesleep = 1000;
-                if (threadName.equals("10_httpd")) { idlesleep = 0; busysleep = 0; memprereq = 0; loadprereq = 9; }
                 //if (threadName.equals(plasmaSwitchboardConstants.CRAWLJOB_LOCAL_CRAWL) && (busysleep < 50)) busysleep = 50;
                 sb.setThreadPerformance(threadName, idlesleep, busysleep, memprereq, loadprereq);
             }
@@ -204,7 +202,6 @@ public class PerformanceQueues_p {
             prop.put("table_" + c + "_loadprereq", loadprereq);
             // disallow setting of memprereq for indexer to prevent db from throwing OOMs
             // prop.put("table_" + c + "_disabled", /*(threadName.endsWith("_indexing")) ? 1 :*/ "0");
-            prop.put("table_" + c + "_disabled", threadName.equals("10_httpd") ? "1" : "0" ); // httpd hardcoded defaults
             prop.put("table_" + c + "_recommendation", threadName.endsWith("_indexing") ? "1" : "0");
             prop.putNum("table_" + c + "_recommendation_value", rwi == null ? 0 : threadName.endsWith("_indexing") ? (rwi.minMem() / 1024) : 0);
             c++;
diff --git a/source/net/yacy/kelondro/workflow/AbstractBusyThread.java b/source/net/yacy/kelondro/workflow/AbstractBusyThread.java
index a8e3477ef..de15a0d80 100644
--- a/source/net/yacy/kelondro/workflow/AbstractBusyThread.java
+++ b/source/net/yacy/kelondro/workflow/AbstractBusyThread.java
@@ -41,13 +41,23 @@ public abstract class AbstractBusyThread extends AbstractThread implements BusyT
     private boolean intermissionObedient = true;
     private final Object syncObject = new Object();
     
-    private long idleSleep = Long.MIN_VALUE;
-    private long busySleep = Long.MIN_VALUE;
-    
-    public AbstractBusyThread(long idleSleep, long busySleep) {
+    private final long idleSleep; // min allowed idle sleep
+    private final long busySleep; // min allowed busy sleep
+
+    /**
+     * Initializes the AbstractBusyThread with min allowed sleep time (in milliseconds)
+     * and sets the actual sleep time to this values.
+     *
+     * @param minidleSleep defines min idle sleep time that can be set via setIdleSleep()
+     * @param minbusySleep defines min busy sleep time that can be set via setBusySleep()
+     */
+    public AbstractBusyThread(long minidleSleep, long minbusySleep) {
         super();
-        this.idleSleep = idleSleep;
-        this.busySleep = busySleep;
+        this.idleSleep = minidleSleep; // set min allowed
+        this.busySleep = minbusySleep;
+
+        this.idlePause = minidleSleep; // initialized actual (might be changed ba set methodes)
+        this.busyPause = minbusySleep; // init here makes sure getIdleSleep() returns at least min allowed
     }
 
     @Override
@@ -55,7 +65,14 @@ public abstract class AbstractBusyThread extends AbstractThread implements BusyT
         // sets a sleep time before execution of the job-loop
         startup = milliseconds;
     }
-    
+
+   /**
+     * Set the delay between idle cycles to the larger of the input argument
+     * and the min allowed delay defined on init
+     *
+     * @param milliseconds
+     * @return the actually set sleep time
+     */
     @Override
     public final long setIdleSleep(final long milliseconds) {
         // sets a sleep time for pauses between two jobs
@@ -67,7 +84,14 @@ public abstract class AbstractBusyThread extends AbstractThread implements BusyT
     public final long getIdleSleep() {
         return idlePause;
     }
-    
+
+    /**
+     * Set the delay between busy cycles to the larger of the input argument
+     * and the min allowed delay defined on init
+     *
+     * @param milliseconds
+     * @return the actually set sleep time
+     */
     @Override
     public final long setBusySleep(final long milliseconds) {
         // sets a sleep time for pauses between two jobs