[infinispan-dev] getting stopped cache

[Galder Zamarreño]

That's a bug. We have tests that check stop/start/stop procedure:
https://github.com/infinispan/infinispan/blob/master/core/src/test/java/org/infinispan/jmx/CacheMBeanTest.java#L55

But not tests that check that procedure with the query module in.

Fill it in http://issues.jboss.org/browse/ISPN and we'll sort it out.

Cheers,

On Aug 27, 2012, at 11:15 PM, Ales Justin wrote:

> Uh, the workaround results in NPE:
> 
> 23:10:27,160 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host]] (http-/192.168.1.101:8080-2) Exception sending request initialized lifecycle event to listener instance of class org.jboss.capedwarf.appidentity.GAEListener: java.lang.NullPointerException
> 	at org.infinispan.query.impl.LifecycleManager.cacheStarted(LifecycleManager.java:125)
> 	at org.infinispan.factories.ComponentRegistry.start(ComponentRegistry.java:178) [infinispan-core-5.2.0.ALPHA2.jar:5.2.0.ALPHA2]
> 	at org.infinispan.CacheImpl.start(CacheImpl.java:523) [infinispan-core-5.2.0.ALPHA2.jar:5.2.0.ALPHA2]
> 	at org.infinispan.AbstractDelegatingCache.start(AbstractDelegatingCache.java:343) [infinispan-core-5.2.0.ALPHA2.jar:5.2.0.ALPHA2]
> 	at org.jboss.capedwarf.common.infinispan.InfinispanUtils.checkCache(InfinispanUtils.java:72) [capedwarf-common-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> 	at org.jboss.capedwarf.common.infinispan.InfinispanUtils.getCache(InfinispanUtils.java:82) [capedwarf-common-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> 
> This is the code I added:
> 
>    private static <K, V> Cache<K, V> checkCache(String cacheName) {
>        final Cache<K, V> cache = cacheManager.getCache(cacheName, false);
>        if (cache != null) {
>            final ComponentStatus status = cache.getStatus();
>            if (status != ComponentStatus.INITIALIZING && status != ComponentStatus.RUNNING) {
>                cache.start();
>            }
>        }
>        return cache;
>    }
> 
> Any other idea?
> 
> -Ales
> 
> On Aug 27, 2012, at 10:51 PM, Ales Justin <ales.justin at gmail.com> wrote:
> 
>> OK, let me try this workaround.
>> 
>> But should Cache::stop also remove it or not?
>> 
>> If yes, I might dig deeper into finding the culprit,
>> if not, then the workaround should do, I guess.
>> 
>> -Ales
>> 
>>> As a workaround, couldn't you check what the status of the cache is before using it? If it's stopped, you could call cache.start() again.
>>> 
>>> On Aug 25, 2012, at 3:44 PM, Ales Justin wrote:
>>> 
>>>> When running CapeDwarf tests these days I get this broken behavior:
>>>> (using: Ispan 5.2.0.Alpha2)
>>>> 
>>>> On 1st test all works OK:
>>>> * getting the X cache
>>>> * passing it to SearchManager (from Ispan Query)
>>>> * doing queries, etc
>>>> * stopping the X cache on app (aka Arquillian test) undeploy
>>>> 
>>>> But when running 2nd app (more Arquillian tests) it breaks.
>>>> 
>>>> I'm again using X cache, via this lookup:
>>>> (where toCacheName == X)
>>>> 
>>>>         final Cache<K, V> cache = cacheManager.getCache(toCacheName(config, appId), false);
>>>>         if (cache != null)
>>>>             return cache;
>>>> 
>>>> And I actually get some cache, where I would expect none.
>>>> 
>>>> Since this cache is not new, it's never run against Ispan Query's LifecycleManager,
>>>> hence there is no QueryInterceptor in its component registry.
>>>> 
>>>> Which is where the app breaks: SearchManager requires QueryInterceptor in cache' component registry.
>>>> 
>>>> Shouldn't Cache::stop also remove the cache from EmbeddedCacheManager?
>>>> btw: this used to work, dunno when it broke ...
>>>> 
>>>> Anyone else seeing something similar?
>>>> 
>>>> -Ales
>>>> 
>>>> ----------
>>>> 
>>>> 15:32:06,810 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host]] (http-/192.168.1.101:8080-3) Exception sending request initialized lifecycle event to listener instance of class org.jboss.capedwarf.appidentity.GAEListener: java.lang.IllegalArgumentException: Indexing was not enabled on this cache. class org.infinispan.query.backend.QueryInterceptor not found in registry
>>>> 	at org.infinispan.query.impl.ComponentRegistryUtils.getComponent(ComponentRegistryUtils.java:40)
>>>> 	at org.infinispan.query.SearchManagerImpl.<init>(SearchManagerImpl.java:57)
>>>> 	at org.infinispan.query.Search.getSearchManager(Search.java:39)
>>>> 	at org.jboss.capedwarf.datastore.AbstractDatastoreService.<init>(AbstractDatastoreService.java:61) [capedwarf-datastore-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
>>>> 	at org.jboss.capedwarf.datastore.JBossDatastoreService.<init>(JBossDatastoreService.java:56) [capedwarf-datastore-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
>>>> 	at com.google.appengine.api.datastore.DatastoreServiceFactory.getDatastoreService(DatastoreServiceFactory.java) [appengine-api-1.0-sdk-1.7.0.jar:]
>>>> 	at org.jboss.capedwarf.log.JBossLogService.requestStarted(JBossLogService.java:215) [capedwarf-log-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
>> 
> 
> 
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--
Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache