Expiration does not work - what is he problem?

[michal_szymanski]

When  I put ne element in cache I set expiration to 1s

   tokenCache.put('abc', token, 1, TimeUnit.SECONDS); 

I've cheked in jconsole what are values after few seconds and evn after few minutes values of 'NumberOfEntries' did not change. I do not know where is funtionalty responsible for expiration but under JConsole I cannot find any Thread realted to infinispan.

We are usiing Infinispan 4.1 under Tomcat+Axis2.

[manik]

The entry would be marked as expired, but not necessarily removed.  Removal of expired entries happens in one of 2 ways:

1.  You try and do a get() or containsKey() for that entry.  The entry is then detected as expired and is removed.

2.  You have enabled eviction and an eviction thread wakes up periodically and purges expired entries.

If you have not enabled (2), or your eviction thread wakeup interval is large and you probe jconsole before the eviction thread kicks in, you will still see the expired entry.  You can be assured that if you tried to retrieve the entry via a get() or containsKey() though, you won't see the entry (and the entry will be removed).

[mircea.markus]

You can also force eviction through:

 cache.getAdvancedCache().getEvictionManager().processEviction(). 

There's also an Cache.evict(k) method, that does eviction on a single key.

[michal_szymanski]

I've added

config.setEvictionStrategy(EvictionStrategy.FIFO);
config.setEvictionMaxEntries(10000);  

config.setEvictionWakeUpInterval(5000); 

and now it works

[galder.zamarreno]

For future reference: http://community.jboss.org/wiki/InfinispanTechnicalFAQs#Expiration_does_not_work_what_is_the_problem