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Posted to cvs@cocoon.apache.org by di...@apache.org on 2001/09/05 13:56:27 UTC
cvs commit: xml-cocoon2/webapp cocoon.xconf
dims 01/09/05 04:56:27
Modified: src/org/apache/cocoon cocoon.roles
src/org/apache/cocoon/components/store FilesystemStore.java
MRUMemoryStore.java MemoryStore.java Store.java
webapp cocoon.xconf
Added: src/org/apache/cocoon/components/store StoreJanitor.java
StoreJanitorImpl.java
Log:
Patch for a new StoreJanitor Component from "Gerhard Froehlich" <g-...@gmx.de>
Revision Changes Path
1.20 +4 -0 xml-cocoon2/src/org/apache/cocoon/cocoon.roles
Index: cocoon.roles
===================================================================
RCS file: /home/cvs/xml-cocoon2/src/org/apache/cocoon/cocoon.roles,v
retrieving revision 1.19
retrieving revision 1.20
diff -u -r1.19 -r1.20
--- cocoon.roles 2001/08/20 12:36:59 1.19
+++ cocoon.roles 2001/09/05 11:56:26 1.20
@@ -91,6 +91,10 @@
<role name="org.apache.cocoon.components.store.Store/StreamCache"
shorthand="stream-cache"
default-class="org.apache.cocoon.components.store.MRUMemoryStore"/>
+
+ <role name="org.apache.cocoon.components.store.StoreJanitor"
+ shorthand="store-janitor"
+ default-class="org.apache.cocoon.components.store.StoreJanitorImpl"/>
<role name="org.apache.cocoon.components.profiler.Profiler"
shorthand="profiler"
1.5 +2 -0 xml-cocoon2/src/org/apache/cocoon/components/store/FilesystemStore.java
Index: FilesystemStore.java
===================================================================
RCS file: /home/cvs/xml-cocoon2/src/org/apache/cocoon/components/store/FilesystemStore.java,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -r1.4 -r1.5
--- FilesystemStore.java 2001/08/20 13:55:13 1.4
+++ FilesystemStore.java 2001/09/05 11:56:26 1.5
@@ -180,6 +180,8 @@
return null;
}
+ public void free() {}
+
public Object getObject(Object key)
throws IOException, ClassNotFoundException
{
1.18 +35 -133 xml-cocoon2/src/org/apache/cocoon/components/store/MRUMemoryStore.java
Index: MRUMemoryStore.java
===================================================================
RCS file: /home/cvs/xml-cocoon2/src/org/apache/cocoon/components/store/MRUMemoryStore.java,v
retrieving revision 1.17
retrieving revision 1.18
diff -u -r1.17 -r1.18
--- MRUMemoryStore.java 2001/08/28 13:31:46 1.17
+++ MRUMemoryStore.java 2001/09/05 11:56:26 1.18
@@ -48,29 +48,8 @@
public class MRUMemoryStore extends AbstractLoggable implements Store, Configurable,
ThreadSafe, Runnable,
Composable, Contextualizable {
+
/**
- * Indicates how much memory should be left free in the JVM for
- * normal operation.
- */
- private int freememory;
-
- /**
- * Indicates how big the heap size can grow to before the cleanup thread kicks in.
- * The default value is based on the default maximum heap size of 64Mb.
- */
- private int heapsize;
-
- /**
- * Indicates the time in seconds to sleep between memory checks.
- */
- private long cleanupthreadinterval;
-
- /**
- * Indicates whether we use a cleanup thread or not.
- */
- private boolean usecleanupthread;
-
- /**
* Indicates the daemon thread priority.
*/
private int priority;
@@ -98,6 +77,7 @@
*/
private File cachefile;
private Store fsstore;
+ private StoreJanitor storejanitor;
private Stack writerstack;
private Thread writer;
private File cachedir;
@@ -115,6 +95,8 @@
this.manager = manager;
getLogger().debug("Looking up " + Store.ROLE + "/Filesystem");
this.fsstore = (Store)manager.lookup(Store.ROLE + "/Filesystem");
+ getLogger().debug("Looking up " + StoreJanitor.ROLE);
+ this.storejanitor = (StoreJanitor)manager.lookup(StoreJanitor.ROLE);
} catch(ComponentException e) {
getLogger().error("Error in compose()!", e);
}
@@ -144,24 +126,19 @@
* Initialize the MRUMemoryStore.
* A few options can be used :
* <UL>
- * <LI>freememory = How much memory to keep free for normal jvm operation. (Default: 1 Mb)</LI>
- * <LI>heapsize = The size of the heap before cleanup starts. (Default: 60 Mb)</LI>
- * <LI>cleanupthreadinterval = time in seconds to sleep between memory checks (Default: 10 seconds)</LI>
* <LI>maxobjects = how many objects will be stored in memory (Default: 10o objects)</LI>
* <LI>threadpriority = priority of the thread (1-10). (Default: 10)</LI>
* <LI>filesystem = use filesystem storage to keep object persistent (Default: false)</LI>
- * <LI>usecleanupthread = use a cleanup daemon thread. (Default: true)</LI>
* </UL>
*/
public void configure(Configuration conf) throws ConfigurationException {
this.jvm = Runtime.getRuntime();
this.mrulist = new LinkedList();
this.writerstack = new Stack();
+
+ this.storejanitor.register(this);
Parameters params = Parameters.fromConfiguration(conf);
- this.freememory = params.getParameterAsInteger("freememory",1000000);
- this.heapsize = params.getParameterAsInteger("heapsize",60000000);
- this.cleanupthreadinterval = params.getParameterAsInteger("cleanupthreadinterval",10);
this.maxobjects = params.getParameterAsInteger("maxobjects",100);
this.cache = new HashMap((int)(this.maxobjects * 1.2));
this.priority = params.getParameterAsInteger("threadpriority",Thread.currentThread().getPriority());
@@ -172,21 +149,7 @@
if ((this.maxobjects < 1)) {
throw new ConfigurationException("MRUMemoryStore maxobjects must be at least 1 milli second!");
}
- if ((this.cleanupthreadinterval < 1)) {
- throw new ConfigurationException("MRUMemoryStore cleanup thread interval must be at least 1 second!");
- }
- this.usecleanupthread = params.getParameter("usecleanupthread","true").equals("true");
-
- if (this.usecleanupthread) {
- getLogger().debug("Intializing checker thread");
- Thread checker = new Thread(this);
- checker.setPriority(this.priority);
- checker.setDaemon(true);
- checker.setName("checker");
- checker.start();
- }
-
if (this.filesystem) {
getLogger().debug("Intializing writer thread");
writer = new Thread(this);
@@ -204,62 +167,28 @@
* Thread writer writes objects from the writer stack onto the filesystem.
*/
public void run() {
- if(Thread.currentThread().getName().equals("checker")) {
- while (true) {
- // amount of memory used is greater then heapsize
- if (memoryLow()) {
- getLogger().debug("Invoking garbage collection, total memory = "
- + this.jvm.totalMemory() + ", free memory = "
- + this.jvm.freeMemory());
- this.jvm.runFinalization();
- this.jvm.gc();
- getLogger().debug("Garbage collection complete, total memory = "
- + this.jvm.totalMemory() + ", free memory = "
- + this.jvm.freeMemory());
- getLogger().debug("Store size BEFORE cleanup=" + this.cache.size());
- synchronized (this) {
- while ((this.cache.size() > 0) && memoryLow()) {
- this.free();
- }
- }
- getLogger().debug("Store size AFTER cleanup=" + this.cache.size());
- }
-
+ while (true) {
+ getLogger().debug("Writerthread awake!");
+ while(!writerstack.empty()) {
try {
- Thread.currentThread().sleep(this.cleanupthreadinterval * 1000);
- } catch (InterruptedException ignore) {}
- }
- } else if(Thread.currentThread().getName().equals("writer")) {
- while (true) {
- getLogger().debug("Writerthread awake!");
- while(!writerstack.empty()) {
- try {
- TmpStackObject tmp = (TmpStackObject)this.writerstack.pop();
- this.fsstore.store(getFileName(tmp.getKey().toString()), tmp.getObject());
- } catch(IOException e) {
- getLogger().error("Error in writer thread",e);
- } catch(Exception ex) {
- getLogger().error("Error in writer thread",ex);
- }
+ TmpStackObject tmp = (TmpStackObject)this.writerstack.pop();
+ this.fsstore.store(getFileName(tmp.getKey().toString()), tmp.getObject());
+ } catch(IOException e) {
+ getLogger().error("Error in writer thread",e);
+ } catch(Exception ex) {
+ getLogger().error("Error in writer thread",ex);
}
+ }
- synchronized (this.writer) {
- try {
- writer.wait();
- } catch (InterruptedException ignored) {}
- }
+ synchronized (this.writer) {
+ try {
+ writer.wait();
+ } catch (InterruptedException ignored) {}
}
}
}
-
+
/**
- * Method to check if memory is running low in the jvm.
- */
- private boolean memoryLow() {
- return jvm.totalMemory() > heapsize && jvm.freeMemory() < freememory;
- }
-
- /**
* Store the given object in a persistent state. It is up to the
* caller to ensure that the key has a persistent state across
* different JVM executions.
@@ -298,6 +227,7 @@
this.cache.put(key, value);
this.mrulist.remove(key);
this.mrulist.addFirst(key);
+ getLogger().debug("Cache size=" + cache.size());
}
/**
@@ -336,7 +266,6 @@
}
}
}
-
return null;
}
@@ -376,10 +305,12 @@
*/
public void free() {
try {
- this.cache.remove(this.mrulist.getLast());
- this.mrulist.removeLast();
- this.jvm.runFinalization();
- this.jvm.gc();
+ if(this.cache.size() > 0) {
+ this.getLogger().debug("Freeing cache");
+ this.cache.remove(this.mrulist.getLast());
+ this.mrulist.removeLast();
+ getLogger().debug("Cache size=" + cache.size());
+ }
} catch (Exception e) {
getLogger().error("Error in free()", e);
}
@@ -405,44 +336,15 @@
return false;
}
}
-
- private String getFileName(String key)
- {
- return new StringBuffer()
- .append(this.cachedirstr)
- .append(File.separator)
-// .append(HashUtil.hash(key.toString()) & 0x1F)
-// .append(File.separator)
- .append(URLEncoder.encode(key.toString()))
- .toString();
- }
- /**
- * Container object for the documents.
- class CacheObject {
- private long time = -1;
- private Object cacheObject;
- private boolean serialised;
-
- public CacheObject(Object ToCacheObject, long lTime, boolean serialised) {
- this.cacheObject = ToCacheObject;
- this.time = lTime;
- this.serialised = serialised;
- }
-
- public Object getCacheObject() {
- return this.cacheObject;
- }
-
- public long getCreateTime() {
- return this.time;
- }
-
- public boolean getSerialisedFlag() {
- return this.serialised;
- }
+ private String getFileName(String key)
+ {
+ return new StringBuffer()
+ .append(this.cachedirstr)
+ .append(File.separator)
+ .append(URLEncoder.encode(key.toString()))
+ .toString();
}
- */
/**
* Temporary container object for the writerstack
1.3 +3 -1 xml-cocoon2/src/org/apache/cocoon/components/store/MemoryStore.java
Index: MemoryStore.java
===================================================================
RCS file: /home/cvs/xml-cocoon2/src/org/apache/cocoon/components/store/MemoryStore.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- MemoryStore.java 2001/08/20 13:55:13 1.2
+++ MemoryStore.java 2001/09/05 11:56:26 1.3
@@ -20,7 +20,7 @@
* (Apache Software Foundation)
* @author <a href="mailto:fumagalli@exoffice.com">Pierpaolo Fumagalli</a>
* (Apache Software Foundation, Exoffice Technologies)
- * @version CVS $Revision: 1.2 $ $Date: 2001/08/20 13:55:13 $
+ * @version CVS $Revision: 1.3 $ $Date: 2001/09/05 11:56:26 $
*/
public class MemoryStore implements Store, ThreadSafe {
/* WARNING: Hashtable is threadsafe, whereas HashMap is not.
@@ -67,6 +67,8 @@
public void remove(Object key) {
table.remove(key);
}
+
+ public void free() {}
/**
* Indicates if the given key is associated to a contained object.
1.4 +3 -1 xml-cocoon2/src/org/apache/cocoon/components/store/Store.java
Index: Store.java
===================================================================
RCS file: /home/cvs/xml-cocoon2/src/org/apache/cocoon/components/store/Store.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- Store.java 2001/08/20 13:55:13 1.3
+++ Store.java 2001/09/05 11:56:26 1.4
@@ -20,7 +20,7 @@
* (Apache Software Foundation)
* @author <a href="mailto:fumagalli@exoffice.com">Pierpaolo Fumagalli</a>
* (Apache Software Foundation, Exoffice Technologies)
- * @version CVS $Revision: 1.3 $ $Date: 2001/08/20 13:55:13 $
+ * @version CVS $Revision: 1.4 $ $Date: 2001/09/05 11:56:26 $
*/
public interface Store extends Component {
@@ -44,6 +44,8 @@
* virtual machine is restarted or some error happens.
*/
void hold(Object key, Object value) throws IOException;
+
+ void free();
/**
* Remove the object associated to the given key.
1.1 xml-cocoon2/src/org/apache/cocoon/components/store/StoreJanitor.java
Index: StoreJanitor.java
===================================================================
/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved. *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included with this distribution in *
* the LICENSE file. *
*****************************************************************************/
package org.apache.cocoon.components.store;
import org.apache.avalon.framework.component.Component;
/**
* Interface for the StoreJanitors
*
* @author <a href="mailto:g-froehlich@gmx.de">Gerhard Froehlich</a>
*/
public interface StoreJanitor extends Component {
String ROLE = "org.apache.cocoon.components.store.StoreJanitor";
/** register method for the stores */
public void register(Store store);
/** unregister method for the stores */
public void unregister(Store store);
}
1.1 xml-cocoon2/src/org/apache/cocoon/components/store/StoreJanitorImpl.java
Index: StoreJanitorImpl.java
===================================================================
/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved. *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included with this distribution in *
* the LICENSE file. *
*****************************************************************************/
package org.apache.cocoon.components.store;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.logger.AbstractLoggable;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.cocoon.Constants;
import java.util.Collections;
import java.util.ArrayList;
/**
* This class is a implentation of a StoreJanitor. Store classes
* can register to the StoreJanitor. When memory is too low,
* the StoreJanitor frees the registered caches until memory is normal.
*
* @author <a href="mailto:cs@ffzj0ia9.bank.dresdner.net">Christian Schmitt</a>
* @author <a href="mailto:g-froehlich@gmx.de">Gerhard Froehlich</a>
* @author <a href="mailto:proyal@managingpartners.com">Peter Royal</a>
*/
public class StoreJanitorImpl extends AbstractLoggable implements StoreJanitor,
Configurable,
ThreadSafe,
Runnable {
private int freememory = -1;
private int heapsize = -1;
private int cleanupthreadinterval = -1;
private int priority = -1;
private Runtime jvm;
private ArrayList storelist;
private int index = -1;
/**
* Initialize the StoreJanitorImpl.
* A few options can be used :
* <UL>
* <LI>freememory = how many bytes shall be always free in the jvm</LI>
* <LI>heapsize = max. size of jvm memory consumption</LI>
* <LI>cleanupthreadinterval = how often (sec) shall run the cleanup thread</LI>
* <LI>threadpriority = priority of the thread (1-10). (Default: 10)</LI>
* </UL>
*/
public void configure(Configuration conf) throws ConfigurationException {
this.getLogger().debug("Configure StoreJanitorImpl");
this.setJVM(Runtime.getRuntime());
Parameters params = Parameters.fromConfiguration(conf);
this.setFreememory(params.getParameterAsInteger("freememory",1000000));
this.setHeapsize(params.getParameterAsInteger("heapsize",60000000));
this.setCleanupthreadinterval(params.getParameterAsInteger("cleanupthreadinterval",10));
this.setPriority(params.getParameterAsInteger("threadpriority",Thread.currentThread().getPriority()));
this.setStoreList(new ArrayList());
Thread checker = new Thread(this);
this.getLogger().debug("Intializing checker thread");
checker.setPriority(this.getPriority());
checker.setDaemon(true);
checker.setName("checker");
checker.start();
}
public void run() {
while (true) {
// amount of memory used is greater then heapsize
if (this.memoryLow()) {
this.getLogger().debug("Invoking garbage collection, total memory = "
+ this.getJVM().totalMemory() + ", free memory = "
+ this.getJVM().freeMemory());
this.freePhysicalMemory();
this.getLogger().debug("Garbage collection complete, total memory = "
+ this.getJVM().totalMemory() + ", free memory = "
+ this.getJVM().freeMemory());
synchronized (this) {
while (this.memoryLow() && this.getStoreList().size() > 0) {
this.freeMemory();
}
this.resetIndex();
}
}
try {
Thread.currentThread().sleep(this.cleanupthreadinterval * 1000);
} catch (InterruptedException ignore) {}
}
}
/**
* Method to check if memory is running low in the getJVM().
*/
private boolean memoryLow() {
this.getLogger().debug("getJVM().totalMemory()=" + this.getJVM().totalMemory());
this.getLogger().debug("getHeapsize()=" + this.getHeapsize());
this.getLogger().debug("getJVM().freeMemory()=" + this.getJVM().freeMemory());
this.getLogger().debug("getFreememory()=" + this.getFreememory());
return this.getJVM().totalMemory() > this.getHeapsize() && this.getJVM().freeMemory() < this.getFreememory();
}
/**
* This method register the store in the StoreJanitor
*/
public void register(Store store) {
this.getLogger().debug("Registering store instance");
this.getStoreList().add(store);
this.getLogger().debug("Size of StoreJanitor now:" + this.getStoreList().size());
}
/**
* This method unregister the store in the StoreJanitor
*/
public void unregister(Store store) {
this.getLogger().debug("Unregister store instance");
this.getStoreList().remove(store);
this.getLogger().debug("Size of StoreJanitor now:" + this.getStoreList().size());
}
/**
* Round Robin alghorithm for freeing the registerd caches.
*/
private void freeMemory() {
try {
this.getLogger().debug("StoreJanitor freeing memory!");
this.getLogger().debug("StoreList size=" + this.getStoreList().size());
this.getLogger().debug("Index before=" + this.getIndex());
if (this.getIndex() < this.getStoreList().size()) {
if(this.getIndex() == -1) {
this.getLogger().debug("Freeing at index=" + this.getIndex());
((Store)this.getStoreList().get(0)).free();
this.setIndex(0);
} else {
this.getLogger().debug("Freeing at index=" + this.getIndex());
((Store)this.getStoreList().get(this.getIndex())).free();
this.setIndex(this.getIndex() + 1);
}
} else {
this.getLogger().debug("Starting from the beginning");
this.resetIndex();
((Store)this.getStoreList().get(0)).free();
this.setIndex(0);
}
this.freePhysicalMemory();
this.getLogger().debug("Index after=" + this.getIndex());
} catch(Exception e) {
this.getLogger().error("Error in freeMemory()",e);
}
}
/**
* This method forces the garbage collector
*/
private void freePhysicalMemory() {
this.getJVM().runFinalization();
this.getJVM().gc();
}
/**
* Getter and setter methods
*/
private int getFreememory() {
return freememory;
}
private void setFreememory(int _freememory) {
this.freememory = _freememory;
}
private int getHeapsize() {
return this.heapsize;
}
private void setHeapsize(int _heapsize) {
this.heapsize = _heapsize;
}
private int getCleanupthreadinterval() {
return this.cleanupthreadinterval;
}
private void setCleanupthreadinterval(int _cleanupthreadinterval) {
this.cleanupthreadinterval = _cleanupthreadinterval;
}
private int getPriority() {
return this.priority;
}
private void setPriority(int _priority) {
this.priority = _priority;
}
private Runtime getJVM() {
return this.jvm;
}
private void setJVM(Runtime _runtime) {
this.jvm = _runtime;
}
private ArrayList getStoreList() {
return this.storelist;
}
private void setStoreList(ArrayList _storelist) {
this.storelist = _storelist;
}
private void setIndex(int _index) {
this.getLogger().debug("Setting index=" + _index);
this.index = _index;
}
private int getIndex() {
return this.index;
}
private void resetIndex() {
this.getLogger().debug("Reseting index");
this.index = -1;
}
}
1.31 +26 -25 xml-cocoon2/webapp/cocoon.xconf
Index: cocoon.xconf
===================================================================
RCS file: /home/cvs/xml-cocoon2/webapp/cocoon.xconf,v
retrieving revision 1.30
retrieving revision 1.31
diff -u -r1.30 -r1.31
--- cocoon.xconf 2001/08/30 19:15:44 1.30
+++ cocoon.xconf 2001/09/05 11:56:27 1.31
@@ -19,29 +19,44 @@
-->
<!-- Storing:
- freememory: Indicates how much memory should be left free in the
- JVM for normal operation.
- heapsize: Indicates how big the heap size can grow to before the
- cleanup thread kicks in.
- cleanupthreadinterval: Indicates the interval of the cleanup thread in seconds.
maxobjects: Indicates how many objects will be hold in the cache.
When the number of maxobjects has been reached. The
last object in the cache will be thrown out.
- usecleanupthread: Indicates whether we use a cleanup thread or not.
- threadpriority: Indicates the priority of the cleanup thread.
+ threadpriority: Indicates the priority of the writer thread.
(1 is the lowest priority and 10 is the highest).
filesystem: Turns the filesystem storage for objects on or off.
-->
<store class="org.apache.cocoon.components.store.MRUMemoryStore" logger="root.store">
- <parameter name="freememory" value="1000000"/>
- <parameter name="heapsize" value="60000000"/>
- <parameter name="cleanupthreadinterval" value="10"/>
<parameter name="maxobjects" value="100"/>
- <parameter name="usecleanupthread" value="true"/>
<parameter name="threadpriority" value="5"/>
<parameter name="filesystem" value="true"/>
</store>
+ <!-- Store Janitor:
+ freememory = How much free memory shall be available in the jvm
+ heapsize = Indicates the limit of the jvm memory consumption
+ cleanupthreadinterval = How often shall the cleanup thread check memory
+ threadpriority = Indicates the thread priority of the cleanup thread
+
+ Be carefull with the heapsize and freememory paramters. Wrong values can
+ cause high cpu usage.
+ Example configuration:
+ Jvm settings:
+ -Xms100000000 -Xmx200000000
+ store-janitor settings:
+ <parameter name="freememory" value="50000000"/>
+ <parameter name="heapsize" value="150000000"/>
+
+ Heapsize must be higher then the -Xms parameter and freememory
+ between those both.
+ -->
+ <store-janitor class="org.apache.cocoon.components.store.StoreJanitorImpl" logger="root.store">
+ <parameter name="freememory" value="1000000"/>
+ <parameter name="heapsize" value="60000000"/>
+ <parameter name="cleanupthreadinterval" value="10"/>
+ <parameter name="threadpriority" value="5"/>
+ </store-janitor>
+
<xslt-processor class="org.apache.cocoon.components.xslt.XSLTProcessorImpl" logger="root.xslt">
<parameter name="use-store" value="true"/>
</xslt-processor>
@@ -262,11 +277,7 @@
filesystem: Turns the filesystem storage for objects on or off.
-->
<stream-cache class="org.apache.cocoon.components.store.MRUMemoryStore" logger="root.store">
- <parameter name="freememory" value="1000000"/>
- <parameter name="heapsize" value="60000000"/>
- <parameter name="cleanupthreadinterval" value="10"/>
<parameter name="maxobjects" value="100"/>
- <parameter name="usecleanupthread" value="true"/>
<parameter name="threadpriority" value="5"/>
<parameter name="filesystem" value="true"/>
</stream-cache>
@@ -283,25 +294,15 @@
pool-max="32" pool-min="16" pool-grow="4"/>
<!-- Caching of event pipeline:
- freememory: Indicates how much memory should be left free in the
- JVM for normal operation.
- heapsize: Indicates how big the heap size can grow to before the
- cleanup thread kicks in.
- cleanupthreadinterval: Indicates the interval of the cleanup thread in seconds.
maxobjects: Indicates how many objects will be hold in the cache.
When the number of maxobjects has been reached. The
last object in the cache will be thrown out.
- usecleanupthread: Indicates whether we use a cleanup thread or not.
threadpriority: Indicates the priority of the cleanup thread.
(1 is the lowest priority and 10 is the highest).
filesystem: Turns the filesystem storage for objects on or off.
-->
<event-cache class="org.apache.cocoon.components.store.MRUMemoryStore" logger="root.store">
- <parameter name="freememory" value="1000000"/>
- <parameter name="heapsize" value="60000000"/>
- <parameter name="cleanupthreadinterval" value="10"/>
<parameter name="maxobjects" value="100"/>
- <parameter name="usecleanupthread" value="true"/>
<parameter name="threadpriority" value="5"/>
<parameter name="filesystem" value="true"/>
</event-cache>
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