clebertsuconic commented on a change in pull request #2861: ARTEMIS-2515 
pageIterator.hasNext spends too much time in the case of no messages matched
URL: https://github.com/apache/activemq-artemis/pull/2861#discussion_r334007365
 
 

 ##########
 File path: 
artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/QueueImpl.java
 ##########
 @@ -2680,24 +2684,24 @@ private boolean deliver() {
 
       int handled = 0;
 
-      long timeout = System.currentTimeMillis() + DELIVERY_TIMEOUT;
+      long timeout = System.nanoTime() + 
TimeUnit.MILLISECONDS.toNanos(DELIVERY_TIMEOUT);
       consumers.reset();
       while (true) {
          if (handled == MAX_DELIVERIES_IN_LOOP) {
             // Schedule another one - we do this to prevent a single thread 
getting caught up in this loop for too
             // long
 
-            deliverAsync();
+            deliverAsync(true);
 
             return false;
          }
 
-         if (System.currentTimeMillis() > timeout) {
+         if (System.nanoTime() > timeout) {
 
 Review comment:
   I remember not long ago, we had to change a few nanoTime operations to avoid 
overflow.
   
   I think, based on that the correct would be System.nanoTime() - timeout > 0
   
   There was a previous big commit where we changed a few like this... the 
commit I could find where Franz changed something similar was 
35c3475092576e7b008220f7c39b78e15850d5fd
   
   
   Can you make that change here please?
   
   

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