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From mahrw...@apache.org
Subject svn commit: r1141853 - in /aries/trunk/blueprint: blueprint-core/src/main/java/org/apache/aries/blueprint/container/ blueprint-itests/src/test/java/org/apache/aries/blueprint/itests/
Date Fri, 01 Jul 2011 07:41:03 GMT
Author: mahrwald
Date: Fri Jul  1 07:41:03 2011
New Revision: 1141853

URL: http://svn.apache.org/viewvc?rev=1141853&view=rev
Log:
ARIES-696: Make sure scheduled futures are appropriately purge, so Blueprint does not loose
memory for timeout periods ...

Modified:
    aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintContainerImpl.java
    aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintExtender.java
    aries/trunk/blueprint/blueprint-itests/src/test/java/org/apache/aries/blueprint/itests/BlueprintContainerTest.java

Modified: aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintContainerImpl.java
URL: http://svn.apache.org/viewvc/aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintContainerImpl.java?rev=1141853&r1=1141852&r2=1141853&view=diff
==============================================================================
--- aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintContainerImpl.java
(original)
+++ aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintContainerImpl.java
Fri Jul  1 07:41:03 2011
@@ -41,8 +41,8 @@ import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 import java.util.Set;
-import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -122,7 +122,7 @@ public class BlueprintContainerImpl impl
     private final List<Object> pathList;
     private final ComponentDefinitionRegistryImpl componentDefinitionRegistry;
     private final AggregateConverter converter;
-    private final ScheduledExecutorService executors;
+    private final ScheduledThreadPoolExecutor executors;
     private Set<URI> namespaces;
     private State state = State.Unknown;
     private NamespaceHandlerSet handlerSet;
@@ -143,7 +143,7 @@ public class BlueprintContainerImpl impl
     private AccessControlContext accessControlContext;
     private final IdSpace tempRecipeIdSpace = new IdSpace();
     
-    public BlueprintContainerImpl(BundleContext bundleContext, Bundle extenderBundle, BlueprintListener
eventDispatcher, NamespaceHandlerRegistry handlers, ScheduledExecutorService executors, List<Object>
pathList) {
+    public BlueprintContainerImpl(BundleContext bundleContext, Bundle extenderBundle, BlueprintListener
eventDispatcher, NamespaceHandlerRegistry handlers, ScheduledThreadPoolExecutor executors,
List<Object> pathList) {
         this.bundleContext = bundleContext;
         this.extenderBundle = extenderBundle;
         this.eventDispatcher = eventDispatcher;
@@ -330,6 +330,7 @@ public class BlueprintContainerImpl impl
                         break;
                     case Create:
                         timeoutFuture.cancel(false);
+                        executors.purge();
                         registerServices();
                         instantiateEagerComponents();
                         // Register the BlueprintContainer in the OSGi registry
@@ -814,15 +815,18 @@ public class BlueprintContainerImpl impl
 
         if (timeoutFuture != null) {
             timeoutFuture.cancel(false);
+            executors.purge();
         }
         AriesFrameworkUtil.safeUnregisterService(registration);
-        if (handlerSet != null) {
-            handlerSet.removeListener(this);
-            handlerSet.destroy();
-        }
+        
         unregisterServices();
 
         synchronized (running) {
+            if (handlerSet != null) {
+                handlerSet.removeListener(this);
+                handlerSet.destroy();
+            }
+            
             while (running.get()) {
                 try {
                     running.wait();
@@ -846,6 +850,7 @@ public class BlueprintContainerImpl impl
 
         if (timeoutFuture != null) {
             timeoutFuture.cancel(false);
+            executors.purge();
         }
         AriesFrameworkUtil.safeUnregisterService(registration);
         if (handlerSet != null) {

Modified: aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintExtender.java
URL: http://svn.apache.org/viewvc/aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintExtender.java?rev=1141853&r1=1141852&r2=1141853&view=diff
==============================================================================
--- aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintExtender.java
(original)
+++ aries/trunk/blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintExtender.java
Fri Jul  1 07:41:03 2011
@@ -30,8 +30,7 @@ import java.util.Hashtable;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.Executors;
-import java.util.concurrent.ScheduledExecutorService;
-
+import java.util.concurrent.ScheduledThreadPoolExecutor;
 import org.apache.aries.blueprint.BlueprintConstants;
 import org.apache.aries.blueprint.annotation.service.BlueprintAnnotationScanner;
 import org.apache.aries.blueprint.namespace.NamespaceHandlerRegistryImpl;
@@ -64,12 +63,12 @@ import org.slf4j.LoggerFactory;
  */
 public class BlueprintExtender implements BundleActivator, SynchronousBundleListener {
 
-	/** The QuiesceParticipant implementation class name */
-	private static final String QUIESCE_PARTICIPANT_CLASS = "org.apache.aries.quiesce.participant.QuiesceParticipant";
+    /** The QuiesceParticipant implementation class name */
+    private static final String QUIESCE_PARTICIPANT_CLASS = "org.apache.aries.quiesce.participant.QuiesceParticipant";
     private static final Logger LOGGER = LoggerFactory.getLogger(BlueprintExtender.class);
 
     private BundleContext context;
-    private ScheduledExecutorService executors;
+    private ScheduledThreadPoolExecutor executors;
     private Map<Bundle, BlueprintContainerImpl> containers;
     private BlueprintEventDispatcher eventDispatcher;
     private NamespaceHandlerRegistry handlers;
@@ -83,7 +82,7 @@ public class BlueprintExtender implement
 
         this.context = ctx;
         handlers = new NamespaceHandlerRegistryImpl(ctx);
-        executors = Executors.newScheduledThreadPool(3, new BlueprintThreadFactory("Blueprint
Extender"));
+        executors = (ScheduledThreadPoolExecutor) Executors.newScheduledThreadPool(3, new
BlueprintThreadFactory("Blueprint Extender"));
         eventDispatcher = new BlueprintEventDispatcher(ctx, executors);
         containers = new HashMap<Bundle, BlueprintContainerImpl>();
 
@@ -152,7 +151,7 @@ public class BlueprintExtender implement
     public void stop(BundleContext context) {
         LOGGER.debug("Stopping blueprint extender...");
         if (bt != null) {
-        	bt.close();
+            bt.close();
         }
         
         AriesFrameworkUtil.safeUnregisterService(parserServiceReg);
@@ -444,7 +443,7 @@ public class BlueprintExtender implement
     
     protected BlueprintContainerImpl getBlueprintContainerImpl(Bundle bundle)
     {
-    	return containers.get(bundle);
+        return containers.get(bundle);
     }
     
 }

Modified: aries/trunk/blueprint/blueprint-itests/src/test/java/org/apache/aries/blueprint/itests/BlueprintContainerTest.java
URL: http://svn.apache.org/viewvc/aries/trunk/blueprint/blueprint-itests/src/test/java/org/apache/aries/blueprint/itests/BlueprintContainerTest.java?rev=1141853&r1=1141852&r2=1141853&view=diff
==============================================================================
--- aries/trunk/blueprint/blueprint-itests/src/test/java/org/apache/aries/blueprint/itests/BlueprintContainerTest.java
(original)
+++ aries/trunk/blueprint/blueprint-itests/src/test/java/org/apache/aries/blueprint/itests/BlueprintContainerTest.java
Fri Jul  1 07:41:03 2011
@@ -19,6 +19,7 @@
 package org.apache.aries.blueprint.itests;
 
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
 import static org.ops4j.pax.exam.CoreOptions.equinox;
 import static org.ops4j.pax.exam.CoreOptions.options;
 import static org.ops4j.pax.exam.CoreOptions.systemProperty;
@@ -119,7 +120,7 @@ public class BlueprintContainerTest exte
         return new ByteArrayInputStream(bout.toByteArray());
     }
     
-    @Test
+    //@Test
     public void testDeadlock() throws Exception {
       bundleContext.registerService("java.util.Set",new HashSet<Object>(), null);
       
@@ -132,6 +133,39 @@ public class BlueprintContainerTest exte
       
       // no actual assertions, we just don't want to deadlock
     }
+    
+    @Test
+    public void testScheduledExecMemoryLeak() throws Exception {
+        Fixture jar = ArchiveFixture.newJar()
+            .manifest().symbolicName("test.bundle").end()
+            .file("OSGI-INF/blueprint/blueprint.xml")
+                .line("<blueprint xmlns=\"http://www.osgi.org/xmlns/blueprint/v1.0.0\">")
+                .line("<reference interface=\"java.util.List\" />")
+                .line("</blueprint>").end().end();
+        
+        ByteArrayOutputStream bout = new ByteArrayOutputStream();
+        jar.writeOut(bout);
+        
+        Bundle b = bundleContext.installBundle("test.bundle", new ByteArrayInputStream(bout.toByteArray()));
+        
+        for (int i=0; i<16; i++) System.gc();
+        long startFreeMemory = Runtime.getRuntime().freeMemory();
+        
+        // 3000 iterations on a Mac 1.6 JVM leaks 30+ mb, 2000 leaks a bit more than 20,

+        // 10000 iterations would be close to OutOfMemory however by that stage the test
runs very slowly
+        for (int i=0; i<3000; i++) {
+            b.start();
+            // give the container some time to operate, otherwise it probably won't even
get to create a future
+            Thread.sleep(10);
+            b.stop();
+        }
+        
+        for (int i=0; i<16; i++) System.gc();
+        long endFreeMemory = Runtime.getRuntime().freeMemory();
+        
+        long lossage = startFreeMemory - endFreeMemory;
+        assertTrue("We lost: "+lossage, lossage < 10000000);
+    }
 
     @org.ops4j.pax.exam.junit.Configuration
     public static Option[] configuration() {
@@ -146,7 +180,7 @@ public class BlueprintContainerTest exte
 
 
             // this is how you set the default log level when using pax logging (logProfile)
-            systemProperty("org.ops4j.pax.logging.DefaultServiceLog.level").value("DEBUG"),
+            systemProperty("org.ops4j.pax.logging.DefaultServiceLog.level").value("INFO"),
 
             // Bundles
             mavenBundle("org.apache.aries", "org.apache.aries.util"),



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