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From Jean-Baptiste Onofre ...@nanthrax.net>
Subject Re: Karaf Cellar as Cache Provider
Date Wed, 10 Jun 2020 04:08:16 GMT
Hi Mike,

Hmmm, ok for the dynamic import.

Can you please create a Jira about that ? As I’m completely refactoring Cellar, I will improve
the caching here.

Thanks,
Regards
JB

> Le 9 juin 2020 à 22:27, Mike Hummel <mh@mhus.de> a écrit :
> 
> Hello JB,
> 
> dynamic import is not working. I tested different scenarios but without success.
> 
> I'm waiting for a change in cellar. Helpful would be a  possibility to use the existing
(connected) hazelcast instance with caching capabilities.
> 
> If I have time (currently not) I will fork cellar and try my best.
> 
> Thx,
> 
> Mike
> 
> 
>> On 4. Jun 2020, at 18:00, Mike Hummel <mh@mhus.de> wrote:
>> 
>> Hi,
>> 
>> sorry for delay, I will retry it in the next days.
>> 
>> Regards,
>> Mike
>> 
>>> On 26. May 2020, at 06:36, Jean-Baptiste Onofre <jb@nanthrax.net> wrote:
>>> 
>>> Hi,
>>> 
>>> I was mentioning dynamic import, not refresh.
>>> 
>>> To enable dynamic import you can use the bundle:dynamic-import command.
>>> 
>>> It’s just a workaround, I will improve Cellar (I’m doing a complete refactoring
of Cellar anyway).
>>> 
>>> Regards
>>> JB
>>> 
>>>> Le 25 mai 2020 à 19:39, Mike Hummel <mh@mhus.de> a écrit :
>>>> 
>>>> Hi,
>>>> 
>>>> yes I tried to refresh bundles in a row but even it was not successful or
the wrong order...
>>>> 
>>>>> You can enable dynamic import on cellar-hazelcast (providing the hazelcast
service), I think it should help.
>>>> 
>>>> 
>>>> Could you give me a hint how to enable the feature afterward?
>>>> 
>>>> Thx,
>>>> 
>>>> Mike
>>>> 
>>>> 
>>>>> On 25. May 2020, at 06:05, Jean-Baptiste Onofre <jb@nanthrax.net>
wrote:
>>>>> 
>>>>> Hi,
>>>>> 
>>>>> Did you try a refresh once installed cache bundle (without restarting
Karaf) ?
>>>>> 
>>>>> You can enable dynamic import on cellar-hazelcast (providing the hazelcast
service), I think it should help.
>>>>> 
>>>>> Regards
>>>>> JB
>>>>> 
>>>>>> Le 24 mai 2020 à 20:56, Mike Hummel <mh@mhus.de> a écrit
:
>>>>>> 
>>>>>> After some try and error I found that the deployment order is important
>>>>>> 
>>>>>> 1)  Install cellar
>>>>>> feature:repo-add cellar
>>>>>> feature:install cellar
>>>>>> 
>>>>>> 2) THEN install JCache
>>>>>> cluster:bundle-install -s default mvn:javax.cache/cache-api/1.1.0
>>>>>> 
>>>>>> ...) More bundles
>>>>>> cluster:bundle-install -s default mvn:de.mhus.osgi/dev-cache/7.1.0-SNAPSHOT
>>>>>> 
>>>>>> 3) MUST restart karaf
>>>>>> shutdown -r -f
>>>>>> 
>>>>>> Now it's possible to use the cache api. (In other order it fails
- reproducible)
>>>>>> 
>>>>>> But this not looks like a stable deployment.
>>>>>> 
>>>>>> Any ideas how to bring this in a stable working feature? Special
the restart is strange.
>>>>>> 
>>>>>> Thx,
>>>>>> 
>>>>>> Mike
>>>>>> 
>>>>>> 
>>>>>>> On 24. May 2020, at 15:02, Mike Hummel <mh@mhus.de> wrote:
>>>>>>> 
>>>>>>> Hello,
>>>>>>> 
>>>>>>> I got karaf cellar to work as expected - don't know what was
the problem last time. It's really cool.
>>>>>>> 
>>>>>>> I'm using karaf 4.2.6 and cellar 4.1.3.
>>>>>>> 
>>>>>>> I want to use hazelcast caching features but I get the following
exception:
>>>>>>> 
>>>>>>> 10:55:14.263 ERROR [Karaf local console user karaf] Exception
caught while executing command
>>>>>>> java.lang.IllegalStateException: There is no valid JCache API
library at classpath. Please be sure that there is a JCache API library in your classpath
and it is newer than `0.x` and `1.0.0-PFD` versions!
>>>>>>> 	at com.hazelcast.instance.HazelcastInstanceCacheManager.getCacheByFullName(HazelcastInstanceCacheManager.java:54)
>>>>>>> 	at com.hazelcast.instance.HazelcastInstanceCacheManager.getCache(HazelcastInstanceCacheManager.java:45)
>>>>>>> 	at de.mhus.osgi.dev.cache.CmdDevHazelcast.execute2(CmdDevHazelcast.java:86)
>>>>>>> 	at de.mhus.osgi.api.karaf.AbstractCmd.execute(AbstractCmd.java:96)
>>>>>>> 	at org.apache.karaf.shell.impl.action.command.ActionCommand.execute(ActionCommand.java:84)
>>>>>>> 	at org.apache.karaf.shell.impl.console.osgi.secured.SecuredCommand.execute(SecuredCommand.java:68)
>>>>>>> 	at org.apache.karaf.shell.impl.console.osgi.secured.SecuredCommand.execute(SecuredCommand.java:86)
>>>>>>> 	at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:599)
>>>>>>> 	at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:526)
>>>>>>> 	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:415)
>>>>>>> 	at org.apache.felix.gogo.runtime.Pipe.doCall(Pipe.java:416)
>>>>>>> 	at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:229)
>>>>>>> 	at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:59)
>>>>>>> 	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>>>>>>> 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
>>>>>>> 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
>>>>>>> 	at java.base/java.lang.Thread.run(Thread.java:834)
>>>>>>> Error executing command: There is no valid JCache API library
at classpath. Please be sure that there is a JCache API library in your classpath and it is
newer than `0.x` and `1.0.0-PFD` versions!
>>>>>>> karaf@b14e3b5c1560()>
>>>>>>> 
>>>>>>> If I install jcache
>>>>>>> 
>>>>>>> install -s mvn:javax.cache/cache-api/1.1.0
>>>>>>> 
>>>>>>> before installation of cellar I will get ...
>>>>>>> 
>>>>>>> 10:56:57.732 ERROR [Karaf local console user karaf] Exception
caught while executing command
>>>>>>> java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError:
org/apache/karaf/cellar/hazelcast/HazelcastClusterManager
>>>>>>> 	at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
>>>>>>> 	at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
>>>>>>> 	at org.apache.felix.gogo.runtime.CommandSessionImpl$JobImpl.run(CommandSessionImpl.java:855)
>>>>>>> 	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>>>>>>> 	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>>>>>>> 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
>>>>>>> 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
>>>>>>> 	at java.base/java.lang.Thread.run(Thread.java:834)
>>>>>>> Caused by: java.lang.NoClassDefFoundError: org/apache/karaf/cellar/hazelcast/HazelcastClusterManager
>>>>>>> 	at de.mhus.osgi.dev.cache.CmdDevHazelcast.execute2(CmdDevHazelcast.java:61)
>>>>>>> 	at de.mhus.osgi.api.karaf.AbstractCmd.execute(AbstractCmd.java:96)
>>>>>>> 	at org.apache.karaf.shell.impl.action.command.ActionCommand.execute(ActionCommand.java:84)
>>>>>>> 	at org.apache.karaf.shell.impl.console.osgi.secured.SecuredCommand.execute(SecuredCommand.java:68)
>>>>>>> 	at org.apache.karaf.shell.impl.console.osgi.secured.SecuredCommand.execute(SecuredCommand.java:86)
>>>>>>> 	at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:599)
>>>>>>> 	at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:526)
>>>>>>> 	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:415)
>>>>>>> 	at org.apache.felix.gogo.runtime.Pipe.doCall(Pipe.java:416)
>>>>>>> 	at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:229)
>>>>>>> 	at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:59)
>>>>>>> 	... 4 more
>>>>>>> Caused by: java.lang.ClassNotFoundException: org.apache.karaf.cellar.hazelcast.HazelcastClusterManager
not found by dev-cache [159]
>>>>>>> 	at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1639)
>>>>>>> 	at org.apache.felix.framework.BundleWiringImpl.access$200(BundleWiringImpl.java:80)
>>>>>>> 	at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2053)
>>>>>>> 	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
>>>>>>> 	... 15 more
>>>>>>> Error executing command: java.lang.NoClassDefFoundError: org/apache/karaf/cellar/hazelcast/HazelcastClusterManager
>>>>>>> karaf@200afd2d720a()>
>>>>>>> 
>>>>>>> 
>>>>>>> The sample project and code is found here
>>>>>>> 
>>>>>>> https://github.com/mhus/mhus-osgi-dev/blob/master/dev-cache/src/main/java/de/mhus/osgi/dev/cache/CmdDevHazelcast.java
>>>>>>> 
>>>>>>> The scenario description is here:
>>>>>>> 
>>>>>>> https://github.com/mhus/mhus-osgi-dev/blob/master/dev-deploy/cellar-docker.adoc
>>>>>>> https://github.com/mhus/mhus-osgi-dev/blob/master/dev-cache/hazelcast.md
>>>>>>> 
>>>>>>> The core code snipped is:
>>>>>>> 
>>>>>>>  	HazelcastClusterManager hccm = (HazelcastClusterManager)clusterManager;
>>>>>>>  	HazelcastInstance inst = hccm.getInstance();
>>>>>>>  	ICacheManager cm = inst.getCacheManager();
>>>>>>>  	CacheSimpleConfig cc = inst.getConfig().getCacheConfig("test");
>>>>>>>  	if (cc == null) {
>>>>>>>  		cc = new CacheSimpleConfig();
>>>>>>>  		cc.setName("test");
>>>>>>>  		cc.setKeyType("String");
>>>>>>>  		cc.setValueType("String");
>>>>>>>  		inst.getConfig().addCacheConfig(cc);
>>>>>>>  	}
>>>>>>>  	ICache<String, String> testc = cm.getCache("test");
>>>>>>>  	String a = testc.get("a");
>>>>>>>  	System.out.println("A: " + a);
>>>>>>>  	testc.put("a",new Date().toString());
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> I already tried cache-api
>>>>>>> 
>>>>>>> 1.0.0-PFD - ClassNotFoundException
>>>>>>> 1.1.0 - ClassNotFoundException
>>>>>>> 1.1.1 - There is no valid JCache API library at classpath
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> Thx for help,
>>>>>>> Regards,
>>>>>>> 
>>>>>>> Mike
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>> 
>>>> 
>>> 
>> 
> 


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