Nabble - Ehcache

Re: Cannot get logging to work ehcache 1.6.2

2009-10-30T06:17:56Z

I can't either, and getting it to work in WebSphere is an even bigger nightmare.

Please vote for this issue and pass the word around. SFL4J fixes all the problems and gives us a performance increase:
https://jira.terracotta.org/jira/browse/EHC-310

There's a patch associated with that JIRA that we use to use SLF4J. You could compile your own jar.

I'm having similar issues. I'm trying to track down configuration problems with distributed caching and while tomcat's JUL logging messages seem to honor my /AppName/WEB-INF/classes/logging.properties ehcache's do not and I'm not getting any logging out of it.

Does anyone have a working example of configuring ehcache logging within a webapp on Tomcat?

-Eric

cj91 wrote:

Can someone please give me an example of how to turn on fine logging in ehcache?

As a bonus question, if the rest of my project uses slf4j, can someone show me how to turn on logging in ehcache?

I've tried for hours but can't get any logging information. I'm using EHCache in a Web Application. Currently, i'm testing in Tomcat. I edited the server's logging.properties file, but that didn't work. I've tried creating a bean in my Spring configuration that installs the SLF4JBridgeHandler before the EHCache is initialized, and that didn't work either (Although Tomcat's JUL calls were routed successfully).

I've gotten by so far by patching the EHCache source code to SLF4J. Is anyone interested in these patches? JUL logging is slower than the parameterized logging of SLF4J... (could be a way to pick up some 'free' speed).

Re: Cannot get logging to work ehcache 1.6.2

2009-10-29T16:27:35Z

I'm having similar issues. I'm trying to track down configuration problems with distributed caching and while tomcat's JUL logging messages seem to honor my /AppName/WEB-INF/classes/logging.properties ehcache's do not and I'm not getting any logging out of it.

Does anyone have a working example of configuring ehcache logging within a webapp on Tomcat?

-Eric

cj91 wrote:

Can someone please give me an example of how to turn on fine logging in ehcache?

As a bonus question, if the rest of my project uses slf4j, can someone show me how to turn on logging in ehcache?

I've tried for hours but can't get any logging information. I'm using EHCache in a Web Application. Currently, i'm testing in Tomcat. I edited the server's logging.properties file, but that didn't work. I've tried creating a bean in my Spring configuration that installs the SLF4JBridgeHandler before the EHCache is initialized, and that didn't work either (Although Tomcat's JUL calls were routed successfully).

I've gotten by so far by patching the EHCache source code to SLF4J. Is anyone interested in these patches? JUL logging is slower than the parameterized logging of SLF4J... (could be a way to pick up some 'free' speed).

Re: How to manage the cache by JMX (using Spring & Tomcat)

2009-09-28T09:00:10Z

Try this Monitoring ehcache with JMX and Spring.

Michael Smith wrote:

I'd like to manage the cache via JMX. I've added this code:

CacheManager manager = new CacheManager();
MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
ManagementService.registerMBeans(manager, mBeanServer, false, false, false, true);

to my class that uses the cache, but I still don't see the cache in my JMX tree.

Is there a way to do it without any programming, just via the Spring configuration? If not, what code do I need to use?

Thanks

problem clustering with ehcache and glassfish

2009-09-02T16:46:14Z

We are using glassfish and ehcache, and can't get the ehcache nodes to replicate to each other. We've tried clustered and non-clustered glassfish configurations, and have used the example ehcache.xml settings, but cannot get the caches to synchronize. Our current configurartion is taken from the ehcache unit-test docs:

<cacheManagerPeerProviderFactory
class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
properties="peerDiscovery=automatic,
multicastGroupAddress=230.0.0.1,
multicastGroupPort=4446"/>

<cacheManagerPeerListenerFactory
class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"
properties= "port=40002"/>

<defaultCache
maxElementsInMemory="10"
eternal="false"
timeToIdleSeconds="100"
timeToLiveSeconds="100"
overflowToDisk="true">
<cacheEventListenerFactory class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"
properties="replicateAsynchronously=true,
replicatePuts=true,
replicateUpdates=true,
replicateUpdatesViaCopy=true,
replicateRemovals=true "/>
<bootstrapCacheLoaderFactory class="net.sf.ehcache.distribution.RMIBootstrapCacheLoaderFactory" />
</defaultCache>

<cache name="com.popcap.soa.datamodel.Score"
maxElementsInMemory="10"
eternal="false"
timeToIdleSeconds="100"
timeToLiveSeconds="100"
overflowToDisk="true">
<cacheEventListenerFactory class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"
properties="replicateAsynchronously=true,
replicatePuts=true,
replicateUpdates=true,
replicateUpdatesViaCopy=false,
replicateRemovals=true,
asynchronousReplicationIntervalMillis=10"/>
<bootstrapCacheLoaderFactory class="net.sf.ehcache.distribution.RMIBootstrapCacheLoaderFactory"
properties="bootstrapAsynchronously=false,
maximumChunkSizeBytes=5000000"/>
</cache>

Using this configuration we can populate the cache on one node, but it does not synchronize. Any help would be appreciated.

Thanks

Cannot get logging to work ehcache 1.6.2

2009-08-26T17:43:47Z

Can someone please give me an example of how to turn on fine logging in ehcache?

As a bonus question, if the rest of my project uses slf4j, can someone show me how to turn on logging in ehcache?

I've tried for hours but can't get any logging information. I'm using EHCache in a Web Application. Currently, i'm testing in Tomcat. I edited the server's logging.properties file, but that didn't work. I've tried creating a bean in my Spring configuration that installs the SLF4JBridgeHandler before the EHCache is initialized, and that didn't work either (Although Tomcat's JUL calls were routed successfully).

I've gotten by so far by patching the EHCache source code to SLF4J. Is anyone interested in these patches? JUL logging is slower than the parameterized logging of SLF4J... (could be a way to pick up some 'free' speed).

instanceof in JMSCachePeer not working.

2009-08-17T08:16:01Z

Hi

The "instance of" used in the source code of ehcache jms replication provided by ehcahe is not working.

File Name is JMSCachePeer

private void handleObjectMessage(Message message) throws JMSException, RemoteException {
ObjectMessage objectMessage = (ObjectMessage) message;
Object object = objectMessage.getObject();

//If a non-cache publisher sends an Element
if (object instanceof Element) {
/** some code **/
} else if (object instanceof JMSEventMessage) {
/** some code **/
} else {
/** some code **/
}

Even though the object is of type JMSEventMessage, the control does not go in the second if. rather it goes in the last else.

The object.getClass().getName() and JMSEventMessage.class.getName() both give the same result which is net.sf.ehcache.distribution.jms.JMSEventMessage.

Even then i am getting a classcastexception when i do this:

JMSEventMessage jmsEventMessage = (JMSEventMessage) object;

If anyone has any input then please share.

Thanks in advance..

Regards,
Nimit Grover.

Tomcat startup fails with Ehcache

2009-08-11T23:54:15Z

Hi All,

I have a web application having tremedous DB interactions (many of them are READ-ONLY). I decided to use secondary level caching for improving performance.

After configuring Ehcache, when I try to start my Tomcat6 server, I get an Applet popup. I click on Allow for all the popups. The folloing is printed on the tomcat console:
-->> returning Frame NULL
BaseDialog: owner frame is a java.awt.Frame

After this, the server keeps trying to start for a while and then says "Server startup failed. ..Took longer than 45 seconds to start"

There is no error logged either on the application logs or the tomcat logs. Everything looks to be fine, but the server doesn't start. I have tried googling a lot but no success. Please help!

Following are the configurations I have done for using ehcahe:

1. Added ehcache1.2.jar to Web-inf/lib
2. Added ehcache configuration to hibernate xml file:

<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</prop>
<prop key="hibernate.cache.use_query_cache">true</prop>
<prop key="hibernate.cache.provider_configuration_file_resource_path">/ehcache.xml</prop>

3. Added ehcache.xml to classpath.
4. Added @cache annotation to my entity.

Any help would be highly appreciated!

Re: Problems initialising ehcache. Possibly can't find ehcache.xsd??

2009-07-01T23:24:49Z

Hi,

Can you please send me documentation on how to use Ehcache in Swing Application?

Many Thanks,
Dany

Offline web application

2009-06-12T10:18:12Z

Hi,

Is the following easily supported by ehcache?

I want to front a remote web server with a local web server. The local server would cache the remote content with ehcache. Network connection will be intermittent. The cache would never expire per se, only be updated periodically whenever there is connectivity.

Caching would also work the other way. Modifications (PUT, POST, DELETE) done by the client would be cached and forwarded to the server whenever connectivity is present.

I reckon some code will be necessary for this, I don't expect ehcache to do it all. I'm just wondering what that would entail and if it falls within ehcache typical usage.

Thanks,

Max

Re: Is there an official javax.cache api/jar yet?

2009-05-18T13:37:08Z

Hi Greg,

Any movement on this yet? It'd be nice to program against javax.cache.* APIs rather than net.sf ones.

Also, unrelated, is it finalized that javax.cache.Cache will extend ConcurrentMap?

Thanks,

Les

gregluck wrote:

Travis

The closest we have is the net.sf.jsr107 package, which is the draft
API but in a sourceforge package. You can get it from Maven central or
from Sourceforge.

I am looking into whether I can release the drafts as a javax.cache
package. I think the answer is yes, in which case I hope to have a
draft out in the next few weeks.

On 29/05/2008, at 7:18 AM, Travis Reeder wrote:

> http://code.google.com/p/simplejpa/

Cache decorators are no use with ORMs

2009-05-08T01:29:02Z

After many hours of hacking I came to conclusion that ehcache's beloved decorators are simply useless with any ORM. This is because hibernate, for instance, never stores original key/object in the cache but stores either CacheKey/Map or CacheKey/CacheEntry with some extra parameters that are simply not available outside of hibernate. So, even if I implemented CacheEntryFactory to find and return entry, this entry is not what hibernate wants - it wants CacheEntry. I could prolly mock CacheEntry and fool hibernate but what good is that hack for production application.

If Greg L. or anyone else has an idea about using cache decorators with ORMs - please speak up.

Unable to get the stored Cache

2009-05-01T07:08:26Z

Hi,

I am using the for caching. I am able to put and get the items upto 3 lac. If I try the application with more than 3 lac, I am not able to get some of items back. It returns null.

I am posting the code :

package ehcache;

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;

import java.util.logging.Level;
import java.util.logging.Logger;
import net.sf.ehcache.Cache;
import net.sf.ehcache.CacheManager;

import net.sf.ehcache.Element;
import net.sf.ehcache.hibernate.EhCache;

/**
*
* @author Tejkiran
*/
public class EHCacheTest {
Cache cache=null;

String Key ="thisiskey";
CacheManager manager=null;
Cache memoryOnlyCache=null;
public InputStream getConfigStream() {
InputStream fis = null;
try {
fis = new FileInputStream(new File("conf/ehcache.xml").getAbsolutePath());

// return EHCacheTest.class.getResourceAsStream("/ehcache.xml");
} catch (FileNotFoundException ex) {
Logger.getLogger(EHCacheTest.class.getName()).log(Level.SEVERE, null, ex);
} finally {
try {
fis.close();
} catch (IOException ex) {
Logger.getLogger(EHCacheTest.class.getName()).log(Level.SEVERE, null, ex);
}
return fis;
}
}
public void writeToEHCache(long nList) {
try{
long nStart = (Long) new Date().getTime();
manager = CacheManager.create("E:\\workarea\\Chambal\\Projects\\EHCache\\conf\\ehcache.xml");
manager = CacheManager.create();
memoryOnlyCache = new Cache("testCache", 500000, true, true, 5, 2);
manager.addCache(memoryOnlyCache);
cache = manager.getCache("testCache");
for (long i = 0; i < nList; i++) {

Element key = new Element(Key+i, "d"+i);
cache.put(key);

}
System.err.println("Memory : "+ cache.getMaxElementsInMemory() + " Disk : "+ cache.getMemoryStoreSize());
long nEnd = (Long) new Date().getTime();
System.out.println("Total consumed EHCache Time : " + (nEnd - nStart));

}catch(RuntimeException ex){

System.out.println("Exception :" +ex.toString()+" Message"+ ex.getMessage());
}
}
public void readFromEHCache(long nlist){
long i=0;
long nStart=0, nEnd=0;
try{
nStart = (Long) new Date().getTime();

//Cache cache1 = manager.getCache("testCache");
//EhCache cache1 = cache;
System.err.println("Memory : "+ cache.getMaxElementsInMemory());
//System.out.print(cache1.getKeys().size());
for ( i = 0; i < nlist; i++) {
String key = Key+(i);
Element hello = cache.get(key);
//String sValue = (String) cache1.read(key);
System.err.println(hello.getObjectValue());
//System.err.println(sValue);

}
// manager.shutdown();
nEnd = (Long) new Date().getTime();
System.out.println("Total Get consumed EHCache Time : " + (nEnd - nStart));

}catch(RuntimeException ex){
System.out.println(":- "+i);
System.out.println("Exception :" +ex.toString()+" message :" + ex.getMessage());
nEnd = (Long) new Date().getTime();
System.out.println("Total Get consumed EHCache Time : " + (nEnd - nStart));
}
}
public static void main(String[] arg){
EHCacheTest objEHCacheTest = new EHCacheTest();
long nmax=2000;
objEHCacheTest.writeToEHCache(nmax);
objEHCacheTest.readFromEHCache(nmax);
}
}

I am using the default configuration.

Using ehcache-debugger ?

2009-04-15T22:12:06Z

Hi,

I stumbled upon ehcache-debugger while looking for ehcache latest version.
I'd be potentially interested b ut couldn't find any doc. Could someone point me toward a documentation if there's one?

I hope this could help me spot some problems we have with ehcache in an Hibernate environment.
It basically does the job pretty well but there's a few points I'd like to be able to improve:

- some request/entities don't get a cache hit even though they've juste been added to the cache. This only happens on some request. I've just spotted one that seem to always miss the cahe and try to understand what's going on.

- ehcache is a key part of our system, and ss such, we definitely need to optimize the memory it can use to store object, and so the size of allocated cache for object and requests.
Our basic rule of thumb was:
- give a full space for Entities that have less than 1000 records in db
- limit other entities according to their size (from 1000 to 10000 elements according to their size)

Would ehcache-debugger help for these purposes?

thanks
-nodje

Classloading issues with Tomcat JNDI and Replication

2009-04-10T11:43:11Z

I have setup replication between several of our webservers. Each webserver runs multiple apps that need to access the cache, so we exposed Ehcache as a JNDI resource. This way all the apps within a tomcat instance can use the same cache. The replication works correctly for basic string based cache items. But now I am wanting to cache a POJO and I get a classcast/class not found exception.

I understand why this happens, because ehcache is loaded by the tomcat system classloader and the webapps are loaded through a different classloader. If I just put my POJO class in the tomcat system class loader, everything would work correctly. But I really don't want to do that.

Is there any way to tell ehcache/rmi to load classes from my WAR file?

EHCache Remote Server Statistics

2009-04-06T11:44:02Z

Hello Greg,

I've implemented EHCache Remote server as part of caching strategy using RESTful service. I'd like to know what is the best way to get Cache Statistics from the Remote Sever? I can do it using OPTION, but, esentially it is a REQUEST/RESPONSE. I'd like to avoid parsing the RESPONSE string.

Thanks

EHCache - Out of Memory Issue

2009-04-06T09:50:45Z

Hi,
In order to improve the performance of our system, we recently moved to EHCache. We have a nightly process that runs and loads data into the cache and the next day all our users get served from the cache. This solution was working fine until last week. This week on, consistently we have been facing an out of memory issue.

This is what changed between last week and this week,

Until last week we had just about 25 stores whose data was loaded to the cache. We changed this to load data for close to 300 stores. Volume of data is something like this,

Each store 100,000 rows of data.

Any ideas of why we are running into this issue??

Our memory config is this ,

-Xms6g
-XX:MaxPermSize=192m
-Xmx6g

We use EHCache-1.5.0.jar

If there is any other information I need to furnish,will be more than happy to do that. Appreciate any kind of help here.

Thanks,
Pia

Closing The Ehcache Mailing List Due to Spam - Please use the Forums Instead

2009-03-25T11:36:30Z

The mailing list is becoming overwhelmed with SPAM. I have had manual moderation for the past 6 months but is getting very tedious picking out the messages from the SPAM manually.

I have raised numerous requests with SourceForge who, though they mark SPAM as SPAM are seemingly unable to stop spam from being delivered to the lists.

So I can spend more time writing code and less filtering spam, I am closing the mailing list. If SourceForge can get it together I will reopen the list.

Please use the forums here: http://sourceforge.net/forum/?group_id=93232 instead.

I get emailed on each forum post so it is easy for me to keep across the discussion threads.

Regards

Greg Luck

web: http://gregluck.com

skype: gregrluck

yahoo: gregrluck

mobile: +61 408 061 622

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Re: HTTP Caching Header Aware Servlet Filter

2009-03-23T08:44:27Z

I just read over your changes - it looks excellent. You've cleaned it up
nicely.

My use of SimpleDateFormat is threadsafe. I synchronize on its use so I
don't have to create new instances every time (preventing some garbage
collector thrashing). However, that's a very minor detail, and I have no
idea if synchronizing on one instance or creating a new one per request is
faster.

Thanks for including my work,
~Craig

> Craig
>
> I have added your filter, along with some tests.
>
> Changes I have made:
>
> 1) SimpleDateFormat is not threadsafe as used. Fixed
> 2) Removed dep on Apache classes
> 3) Added tests, doco and made cacheName and blocking timeout
> configurable
>
> I will be putting this out as ehcache-web.1.6-beta1 today or tomorrow.
>
> On 14/02/2009, at 4:38 PM, Craig Andrews wrote:
>
>> I recently implemented a servlet filter that extends the
>> SimplePageCachingFilter, adding support for the ETags, Last-
>> Modified, and
>> Expires HTTP headers. I think this filter would benefit many of
>> Ehcache's
>> users - for my project, it enabled us to leverage Apache's mod_cache,
>> eliminating many hits to Tomcat completely.
>>
>> I've posted the code on my blog - can you please consider including
>> in a
>> future version of Ehcache?
>>
>> http://candrews.integralblue.com/2009/02/http-caching-header-aware-servlet-filter/
>>
>> Thanks!
>> ~Craig
>>
>> ------------------------------------------------------------------------------
>> Open Source Business Conference (OSBC), March 24-25, 2009, San
>> Francisco, CA
>> -OSBC tackles the biggest issue in open source: Open Sourcing the
>> Enterprise
>> -Strategies to boost innovation and cut costs with open source
>> participation
>> -Receive a $600 discount off the registration fee with the source
>> code: SFAD
>> http://p.sf.net/sfu/XcvMzF8H
>> _______________________________________________
>> ehcache-list mailing list
>> ehcache-list@...
>> https://lists.sourceforge.net/lists/listinfo/ehcache-list
>>
>>
>
> Regards
>
> Greg Luck
>
> web: http://gregluck.com
> skype: gregrluck
> yahoo: gregrluck
> mobile: +61 408 061 622
>
>

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Re: HTTP Caching Header Aware Servlet Filter

2009-03-23T00:29:12Z

Craig

I have added your filter, along with some tests.

Changes I have made:

1) SimpleDateFormat is not threadsafe as used. Fixed

2) Removed dep on Apache classes

3) Added tests, doco and made cacheName and blocking timeout configurable

I will be putting this out as ehcache-web.1.6-beta1 today or tomorrow.

On 14/02/2009, at 4:38 PM, Craig Andrews wrote:

I recently implemented a servlet filter that extends the
SimplePageCachingFilter, adding support for the ETags, Last-Modified, and
Expires HTTP headers. I think this filter would benefit many of Ehcache's
users - for my project, it enabled us to leverage Apache's mod_cache,
eliminating many hits to Tomcat completely.

I've posted the code on my blog - can you please consider including in a
future version of Ehcache?

http://candrews.integralblue.com/2009/02/http-caching-header-aware-servlet-filter/

Thanks!
~Craig

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-OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
-Strategies to boost innovation and cut costs with open source participation
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http://p.sf.net/sfu/XcvMzF8H
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Regards

Greg Luck

web: http://gregluck.com

skype: gregrluck

yahoo: gregrluck

mobile: +61 408 061 622

[ehcache] RMICacheManagerPeerProviderFactory and Multi host suppor

2009-03-22T18:24:59Z

Our server have two ip,one is real ip,another is LAN ip(such as 192.168.0.2),the real ip is protected by iptables and LAN ip is not,but when I use RMICacheManagerPeerProviderFactory,the MulticastSocket use the real ip to broadcast,so all package is blocked, so peers can not be detected each other.

MulticastSocket have other constructors can set the host and ip,why not add some config properties to let me decide which ip to use?

for example properties="peerDiscovery=automatic,multicastGroupAddress=230.0.0.1,multicastGroupPort=4444,multicastAddress=192.168.0.2"

public MulticastSocket(String host,int port) throws IOException { this(new InetSocketAddress(host,port)); }

New User: ehcache doesn't seem to save to disk

2009-03-17T17:50:38Z

Hi all,
I just downloaded ehcache 1.6 and am testing it on Java 1.6 (windows).
In my test, I am writing data to a cache, that cache seems to write something to disk (I can see something in the .index file, although .data file is empty). Even after I shutdown the JVM, the index file has the same data. When I run my program again, the index file gets reset to zero bytes and it shows that I have nothing in the cache!

What am I doing wrong?

-----------------My config file (comments, test caches, xml boiler plate, etc. removed):
<diskStore path="data"/>
<cacheManagerEventListenerFactory class="" properties=""/>
<cacheManagerPeerProviderFactory
class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
properties="peerDiscovery=automatic,
multicastGroupAddress=230.0.0.1,
multicastGroupPort=4446, timeToLive=1"
propertySeparator=","
/>
<cacheManagerPeerListenerFactory
class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"/>
<defaultCache
maxElementsInMemory="10000"
eternal="true"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="true"
diskSpoolBufferSizeMB="30"
maxElementsOnDisk="0"
diskPersistent="true"
diskExpiryThreadIntervalSeconds="0"
memoryStoreEvictionPolicy="LRU"
/>
<cache name="cache1"
maxElementsInMemory="10000"
eternal="true"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="true"
diskSpoolBufferSizeMB="30"
maxElementsOnDisk="0"
diskPersistent="true"
diskExpiryThreadIntervalSeconds="0"
memoryStoreEvictionPolicy="LRU"
/>

-------My Test Code----------
package test;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import QUOTE;//import quote data type from my internal package heirarchy, taken out here

import net.sf.ehcache.Cache;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.Element;

public class EHCacheTest {

/**
* @param args
*/
public static void main(String[] args) {
CacheManager manager = new CacheManager("config/ehcache.xml");

Cache cache1=manager.getCache("cache1");

int size=1000000;

System.out.println("Size of cache is "+cache1.getSize());

for(int i=0;i<size;i++){
String id =Util.newOrderID();
cache1.put(new Element(id,new QUOTE("x",23.23,3434l)));
}

System.out.println("Size of cache is "+cache1.getSize());

manager.shutdown();
}
}

Thanks

Re: java.net.MalformedURLException: invalid character, '#', in URL name

2009-03-16T16:50:33Z

Ray

# is definitely an illegal character in Naming.java

From the URL javadoc:

The syntax of URL is defined by RFC 2396: Uniform Resource Identifiers (URI): Generic Syntax, amended by RFC 2732: Format for Literal IPv6 Addresses in URLs. The Literal IPv6 address format also supports scope_ids. The syntax and usage of scope_ids is described here.

A URL may have appended to it a "fragment", also known as a "ref" or a "reference". The fragment is indicated by the sharp sign character "#" followed by more characters. For example,

       http://java.sun.com/index.html#chapter1

Now, the issue is being caused by the use of #. I don't think anything should have changed between versions of ehcache, because this is JDK code.

The fix is in your app is to avoid #. The ehcache fix would be to escape illegal characters. Let me know what you think.

On 18/02/2009, at 1:29 AM, Ray Auge wrote:

We recently upgraded to ehcache 1.5.0 and are now getting this error on starting with cluster config:
SEVERE: Servlet  threw load() exception
java.net.MalformedURLException: invalid character, '#', in URL name: //192.168.0.249:37042/com.liferay.portal.kernel.dao.orm.FinderCache#com.liferay.portal.model.Company
	at java.rmi.Naming.parseURL(Naming.java:222)
	at java.rmi.Naming.rebind(Naming.java:154)
	at net.sf.ehcache.distribution.RMICacheManagerPeerListener.bind(RMICacheManagerPeerListener.java:230)
	at net.sf.ehcache.distribution.RMICacheManagerPeerListener.notifyCacheAdded(RMICacheManagerPeerListener.java:511)
	at net.sf.ehcache.event.CacheManagerEventListenerRegistry.notifyCacheAdded(CacheManagerEventListenerRegistry.java:156)
	at net.sf.ehcache.CacheManager.addCacheNoCheck(CacheManager.java:720)
	at net.sf.ehcache.CacheManager.addCache(CacheManager.java:697)
	at net.sf.ehcache.CacheManager.addCache(CacheManager.java:634)
	at com.liferay.portal.cache.EhcachePortalCacheManager.getCache(EhcachePortalCacheManager.java:75)
	at com.liferay.portal.cache.MultiVMPoolImpl.getCache(MultiVMPoolImpl.java:61)
        ...
Anyone ever seen this before?

Ray
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ehcache.xml include

2009-03-16T10:59:36Z

Hi all,

I'm working with one custom library A that use ehcache. This custome library A has its own ehcache.xml in the classpath.

The project B that use this library use also ehcache and has its own ehcache.xml.

I would like to know if it is possible in the ehcache of project B to include the ehcache.xml of library A ?
Is there any other way to include another ehcache.xml ?

Thanks for you help.
Hervé
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Re: net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator: java.rmi.UnknownHostException

2009-03-16T07:04:49Z

I was able to resolve this issue. For posterity, it was an RMI issue. The host on which RMI was running was not using its FQDN in the RMI messages.

Here is a FAQ the describes the issue and resolution in more detail:

http://java.sun.com/j2se/1.5.0/docs/guide/rmi/faq.html#netunknownhost

Since I'm using JBoss, I simply defined an additional JAVA_OPT of "-Djava.rmi.server.hostname=server1.this.domain.example.com". It worked great after that.

--Nathan

> --- On Tue, 3/10/09, Nathan Good
> <nathanagood@...> wrote:
> From: Nathan Good <nathanagood@...>
> Subject: [ehcache-list]
> net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator:
> java.rmi.UnknownHostException
> To: ehcache-list@...
> Date: Tuesday, March 10, 2009, 7:09 AM
>
> I am attempting to set up a distributed cache between two
> servers and am
> getting an java.rmi.UnknownHostException (see stack trace
> in this e-mail). I
> have verified that using the short name the host is not
> resolvable from server2
> to server1, since they are in different domains. However,
> I am using the FQDN
> in the configuration files and have even used the IP
> addresses in the
> configuration files on both servers with the same results.
> It's as if the
> FQDN or IP address is being ignored and it's pulling
> the short name from
> somewhere.
>
> ehcache 1.5.0, manual peer discovery, running inside JBoss
> 5.0.0.GA
>
> The servers are NOT in each other's /etc/hosts file.
> The FQDNs of the
> servers are resolvable from each other, but only when given
> as a FQDN.
>
> I would really appreciate any suggestions anyone might
> have. Thank you!
>
>
> server1.this.domain.example.com -> messages sent
> successfully to
> server2.that.domain.example.com
> server2.that.domain.example.com -> says
> server1.this.domain.example.com is
> unknown
>
> Here is the stack trace from
> server2.that.domain.example.com:
>
> 2009-03-10 09:35:03,643 WARN
> [net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator]
> (Replication
> Thread) Unable to send message to remote peer. Message
> was: Unknown host:
> server1; nested exception is:
> java.net.UnknownHostException: server1
> java.rmi.UnknownHostException: Unknown host: server1;
> nested exception is:
> java.net.UnknownHostException: server1
> at
> sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:572)
> at
> sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:185)
> at
> sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:171)
> at
> sun.rmi.server.UnicastRef.invoke(UnicastRef.java:94)
> at
> net.sf.ehcache.distribution.RMICachePeer_Stub.send(Unknown
> Source)
> at
> net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator.flushReplicationQueue(RMIAsynchronousCacheReplicator.java:309)
> at
> net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator.replicationThreadMain(RMIAsynchronousCacheReplicator.java:122)
> at
> net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator.access$100(RMIAsynchronousCacheReplicator.java:55)
> at
> net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator$ReplicationThread.run(RMIAsynchronousCacheReplicator.java:368)
> Caused by: java.net.UnknownHostException: server1
> at
> java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
> at
> java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
> at java.net.Socket.connect(Socket.java:520)
> at java.net.Socket.connect(Socket.java:470)
> at java.net.Socket.<init>(Socket.java:367)
> at java.net.Socket.<init>(Socket.java:180)
> at
> sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
> at
> sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)
> at
> net.sf.ehcache.distribution.ConfigurableRMIClientSocketFactory.createSocket(ConfigurableRMIClientSocketFactory.java:72)
> at
> sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:569)
> ... 8 more
>
> Here are the configuration files (I've changed the
> names of the server for
> security reasons):
>
> server1.this.domain.example.com config:
>
> <ehcache
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>
> xsi:noNamespaceSchemaLocation="ehcache.xsd">
> <cacheManagerPeerProviderFactory class=
>
> "net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
>
> properties="peerDiscovery=manual,
> rmiUrls=//server2.that.domain.com:40000/cache1|//server2.that.domain.com:40000/cache2
> |//server2.that.domain.com:40000/cache3|//server2.that.domain.com:40000/cache4"
> propertySeparator=","
> />
>
> <cacheManagerPeerListenerFactory
>
> class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"
> properties="hostName=, port=40000,
> socketTimeoutMillis=2000"/>
>
> <defaultCache
> maxElementsInMemory="10000"
> eternal="false"
> timeToIdleSeconds="120"
> timeToLiveSeconds="120"
> overflowToDisk="true"
> diskSpoolBufferSizeMB="30"
> maxElementsOnDisk="10000000"
> diskPersistent="false"
> diskExpiryThreadIntervalSeconds="120"
> memoryStoreEvictionPolicy="LRU"
> />
> <cache name="cache1"
> maxElementsInMemory="10000"
> maxElementsOnDisk="10000"
> eternal="true"
> overflowToDisk="true"
> memoryStoreEvictionPolicy="LRU"
> diskPersistent="true">
> <cacheEventListenerFactory
> class="com.ml.art.util.cache.ConfigurationEventListenerFactory"/>
> <cacheEventListenerFactory
>
> class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"
> properties="replicateAsynchronously=true,
> replicatePuts=true,
> replicateUpdates=true,
> replicateUpdatesViaCopy=true,
> replicateRemovals=true "/>
> </cache>
> 
> </ehcache>
>
> File from server2.that.domain.example.com:
>
> <ehcache
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>
> xsi:noNamespaceSchemaLocation="ehcache.xsd">
> <cacheManagerPeerProviderFactory class=
>
> "net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
>
> properties="peerDiscovery=manual,
> rmiUrls=//server1.this.domain.com:40000/cache1|//server1.this.domain.com:40000/cache2
> |//server1.this.domain.com:40000/cache3|//server1.this.domain.com:40000/cache4"
> propertySeparator=","
> />
>
> <cacheManagerPeerListenerFactory
>
> class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"
> properties="hostName=, port=40000,
> socketTimeoutMillis=2000"/>
>
> <defaultCache
> maxElementsInMemory="10000"
> eternal="false"
> timeToIdleSeconds="120"
> timeToLiveSeconds="120"
> overflowToDisk="true"
> diskSpoolBufferSizeMB="30"
> maxElementsOnDisk="10000000"
> diskPersistent="false"
> diskExpiryThreadIntervalSeconds="120"
> memoryStoreEvictionPolicy="LRU"
> />
> <cache name="cache1"
> maxElementsInMemory="10000"
> maxElementsOnDisk="10000"
> eternal="true"
> overflowToDisk="true"
> memoryStoreEvictionPolicy="LRU"
> diskPersistent="true">
> <cacheEventListenerFactory
> class="com.ml.art.util.cache.ConfigurationEventListenerFactory"/>
> <cacheEventListenerFactory
>
> class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"
> properties="replicateAsynchronously=true,
> replicatePuts=true,
> replicateUpdates=true,
> replicateUpdatesViaCopy=true,
> replicateRemovals=true "/>
> </cache>
> 
> </ehcache>
>
>
>
>
>
> ------------------------------------------------------------------------------
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> Builder(TM) are
> powering Web 2.0 with engaging, cross-platform
> capabilities. Quickly and
> easily build your RIAs with Flex Builder, the
> Eclipse(TM)based development
> software that enables intelligent coding and step-through
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EhCache data and query cache implementation for OpenJPA

2009-03-12T12:46:58Z

I have implemented an EhCache data and query cache implementation for
OpenJPA based on the work of Pinaki Poddar, who created an OpenJPA data
cache for Coherence. My code is available on my blog at
http://candrews.integralblue.com/2009/03/ehcache-implementation-of-openjpa-caching
and is available under the APL 2.0 license.

I think this code belongs in OpenJPA, and I have submitted it for that
project's review, but I would enjoy some input from the ehcache crew as
well, and to raise awareness of this code, as I believe it would be useful
to anyone who uses both EhCache and OpenJPA.

Thank you,
~Craig

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EhCache data and query cache implementation for OpenJPA

2009-03-12T12:46:54Z

I have implemented an EhCache data and query cache implementation for
OpenJPA based on the work of Pinaki Poddar, who created an OpenJPA data
cache for Coherence. My code is available on my blog at
http://candrews.integralblue.com/2009/03/ehcache-implementation-of-openjpa-caching
and is available under the APL 2.0 license.

I think this code belongs in OpenJPA, and I have submitted it for that
project's review, but I would enjoy some input from the ehcache crew as
well, and to raise awareness of this code, as I believe it would be useful
to anyone who uses both EhCachea and OpenJPA.

Thank you,
~Craig

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net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator: java.rmi.UnknownHostException

2009-03-10T07:09:07Z

I am attempting to set up a distributed cache between two servers and am getting an java.rmi.UnknownHostException (see stack trace in this e-mail). I have verified that using the short name the host is not resolvable from server2 to server1, since they are in different domains. However, I am using the FQDN in the configuration files and have even used the IP addresses in the configuration files on both servers with the same results. It's as if the FQDN or IP address is being ignored and it's pulling the short name from somewhere.

ehcache 1.5.0, manual peer discovery, running inside JBoss 5.0.0.GA

The servers are NOT in each other's /etc/hosts file. The FQDNs of the servers are resolvable from each other, but only when given as a FQDN.

I would really appreciate any suggestions anyone might have. Thank you!

server1.this.domain.example.com -> messages sent successfully to server2.that.domain.example.com
server2.that.domain.example.com -> says server1.this.domain.example.com is unknown

Here is the stack trace from server2.that.domain.example.com:

2009-03-10 09:35:03,643 WARN [net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator] (Replication Thread) Unable to send message to remote peer. Message was: Unknown host: server1; nested exception is:
java.net.UnknownHostException: server1
java.rmi.UnknownHostException: Unknown host: server1; nested exception is:
java.net.UnknownHostException: server1
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:572)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:185)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:171)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:94)
at net.sf.ehcache.distribution.RMICachePeer_Stub.send(Unknown Source)
at net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator.flushReplicationQueue(RMIAsynchronousCacheReplicator.java:309)
at net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator.replicationThreadMain(RMIAsynchronousCacheReplicator.java:122)
at net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator.access$100(RMIAsynchronousCacheReplicator.java:55)
at net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator$ReplicationThread.run(RMIAsynchronousCacheReplicator.java:368)
Caused by: java.net.UnknownHostException: server1
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:520)
at java.net.Socket.connect(Socket.java:470)
at java.net.Socket.<init>(Socket.java:367)
at java.net.Socket.<init>(Socket.java:180)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)
at net.sf.ehcache.distribution.ConfigurableRMIClientSocketFactory.createSocket(ConfigurableRMIClientSocketFactory.java:72)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:569)
... 8 more

Here are the configuration files (I've changed the names of the server for security reasons):

server1.this.domain.example.com config:

<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="ehcache.xsd">
<cacheManagerPeerProviderFactory class=
"net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
properties="peerDiscovery=manual, rmiUrls=//server2.that.domain.com:40000/cache1|//server2.that.domain.com:40000/cache2 |//server2.that.domain.com:40000/cache3|//server2.that.domain.com:40000/cache4"
propertySeparator="," />

<cacheManagerPeerListenerFactory
class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"
properties="hostName=, port=40000, socketTimeoutMillis=2000"/>

<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="true"
diskSpoolBufferSizeMB="30"
maxElementsOnDisk="10000000"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU"
/>
<cache name="cache1"
maxElementsInMemory="10000"
maxElementsOnDisk="10000"
eternal="true"
overflowToDisk="true"
memoryStoreEvictionPolicy="LRU"
diskPersistent="true">
<cacheEventListenerFactory class="com.ml.art.util.cache.ConfigurationEventListenerFactory"/>
<cacheEventListenerFactory
class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"
properties="replicateAsynchronously=true, replicatePuts=true, replicateUpdates=true,
replicateUpdatesViaCopy=true, replicateRemovals=true "/>
</cache>

</ehcache>

File from server2.that.domain.example.com:

<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="ehcache.xsd">
<cacheManagerPeerProviderFactory class=
"net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
properties="peerDiscovery=manual, rmiUrls=//server1.this.domain.com:40000/cache1|//server1.this.domain.com:40000/cache2 |//server1.this.domain.com:40000/cache3|//server1.this.domain.com:40000/cache4"
propertySeparator="," />

<cacheManagerPeerListenerFactory
class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"
properties="hostName=, port=40000, socketTimeoutMillis=2000"/>

<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="true"
diskSpoolBufferSizeMB="30"
maxElementsOnDisk="10000000"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU"
/>
<cache name="cache1"
maxElementsInMemory="10000"
maxElementsOnDisk="10000"
eternal="true"
overflowToDisk="true"
memoryStoreEvictionPolicy="LRU"
diskPersistent="true">
<cacheEventListenerFactory class="com.ml.art.util.cache.ConfigurationEventListenerFactory"/>
<cacheEventListenerFactory
class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"
properties="replicateAsynchronously=true, replicatePuts=true, replicateUpdates=true,
replicateUpdatesViaCopy=true, replicateRemovals=true "/>
</cache>

</ehcache>

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Max Capacity for EhCache

2009-03-02T15:28:51Z

How big can the cache get in terms of # of entries in memory (not on disk)

Does Ehcache perform well with 2 to 4 million objects in memory ( essentially like a concurrent hashmap )

thanks,

Ed

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Write Through Cache ( ? )

2009-03-02T06:45:23Z

Hi,
I'm using EHCache to build a distributed Cache that needs to persist its data at all costs during its time of validity.
Is there any way to make something like a Write Through Cache by configuration?

Thanks in an advance,
Jorge Matos

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Write Through Cache ( ? )

2009-03-02T02:58:35Z

Hi,
I'm using EHCache to build a distributed Cache that needs to persist its
data at all costs during its time of validity.
Is there any way to make something like a Write Through Cache by
configuration?

Thanks in an advance,
Jorge Matos

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Cache with Disk Copy

2009-02-27T06:27:28Z

Hi,

I'm using EHCache to build a distributed Cache for a somewhat critical
software that needs to persist its data at all costs during its time
of validity.
Is there any way to make something like a WriteThrough Cache by
configuration?

I was able to get a WriteThrough Cache making an EventListener that
makes puts of the New or Updated Elements directly to the DiskStore.
Will this drop to much the Cache performance? Are this elements
persisted to disk synchronously during the Puts or asynchronously by a
working thread?

Thanks in an advance,
Carlos Lopes.

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PageCachingFilter caches cookies and should not

2009-02-23T09:59:15Z

I can't think of any situation where caching cookies is a good idea.
Cookies are usually personalized to the requester, and contain things like
a unique user id.

In my current project, the PageCachingFilter's persistence of cookies lead
to an interesting case where one user would get another users' data. I
assume more implementers of this filter will run into this problem.

Can you change PageCachingFilter to not include cookies in its cache?

https://sourceforge.net/tracker2/?func=detail&aid=2630970&group_id=93232&atid=603559

Thank you!
~Craig

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Expired Elements and Garbage Collection

2009-02-20T15:11:26Z

Hi,

I have been profiling my application and was wondering if the expired elements in the cache are eligible for garbage collection. If not, is it advisable to force programmatically evict the elements so that they would be eligible for GC?

Thanks.

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Re: ehcache 1.6 release

2009-02-18T12:50:49Z

John

1.5 was primarily a maintenance release.

1.6 is pretty much a restructure, with breakout of code into different modules, dropping all dependencies for the core and relying on Java 1.5, and changes to support major new features such as the cache server and JMS replication. There have been very few changes to the core actually.

I would stick with 1.5.

I am working on a major performance increase for systems with very large numbers of threads to cope with future expected usage. This necessarily requires a large change to the way synchronization works, so there will definitely be at least another beta release to allow testing of this change.

Regards

Greg Luck

web: http://gregluck.com

skype: gregrluck

yahoo: gregrluck

mobile: +61 408 061 622

On 19/02/2009, at 12:07 AM, John Cout wrote:

Hi Greg,

Grey we are looking into using ehcache as a caching solution. Currently we have been testing using version 1.6 beta 3. However, there is a concern that we should fall back to a released version i.e 1.5. Based on previous releases it appears that the 1.6 release (after beta 3) should be within the month. We are looking at starting development in March.

Do you have an anticipated release date of 1.6 ?
Is there any outstanding reason to use 1.6 over 1.5 ?

Thanks
John

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java.net.MalformedURLException: invalid character, '#', in URL name

2009-02-17T07:29:01Z

We recently upgraded to ehcache 1.5.0 and are now getting this error on starting with cluster config:

SEVERE: Servlet  threw load() exception
java.net.MalformedURLException: invalid character, '#', in URL name: //192.168.0.249:37042/com.liferay.portal.kernel.dao.orm.FinderCache#com.liferay.portal.model.Company
	at java.rmi.Naming.parseURL(Naming.java:222)
	at java.rmi.Naming.rebind(Naming.java:154)
	at net.sf.ehcache.distribution.RMICacheManagerPeerListener.bind(RMICacheManagerPeerListener.java:230)
	at net.sf.ehcache.distribution.RMICacheManagerPeerListener.notifyCacheAdded(RMICacheManagerPeerListener.java:511)
	at net.sf.ehcache.event.CacheManagerEventListenerRegistry.notifyCacheAdded(CacheManagerEventListenerRegistry.java:156)
	at net.sf.ehcache.CacheManager.addCacheNoCheck(CacheManager.java:720)
	at net.sf.ehcache.CacheManager.addCache(CacheManager.java:697)
	at net.sf.ehcache.CacheManager.addCache(CacheManager.java:634)
	at com.liferay.portal.cache.EhcachePortalCacheManager.getCache(EhcachePortalCacheManager.java:75)
	at com.liferay.portal.cache.MultiVMPoolImpl.getCache(MultiVMPoolImpl.java:61)
        ...

Anyone ever seen this before?

Ray

------------------------------------------------------------------------------
Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are
powering Web 2.0 with engaging, cross-platform capabilities. Quickly and
easily build your RIAs with Flex Builder, the Eclipse(TM)based development
software that enables intelligent coding and step-through debugging.
Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com
_______________________________________________
ehcache-list mailing list
ehcache-list@...
https://lists.sourceforge.net/lists/listinfo/ehcache-list