cache not flushed as often as expected

[yangju]

I am running jboss 4.2 and hibernate with jboss treecache (deployed as mbean) as hibernate cache provider. I have the following default region evict policy defined in the treecache-service.xml :
org.jboss.cache.eviction.LRUPolicy

<!--0 means no limit -->
0
1800
1800


In my code I save my query cache into a region called "/myregion". However, I don't have region "/myregion" configured. I thought if myregion is not defined in treecache-service.xml, it falls back to _default_ region. So I expected that every 30 mins my cache is flushed. However, I found that the cache is flushed every 3 or 4 hours, not 30 mins as specified in the _default_ region.

Do I have to define myregion? Doesn't treecache uses default cache policy if it cannot fine myregion?

Thanks.

[yangju]

Sorry the xml quoto was missing. It is

<region name="/_default_">
 <!--0 means no limit -->
 <attribute name="maxNodes">0</attribute>
 <attribute name="timeToLiveSeconds">1800</attribute>
 <attribute name="maxAgeSeconds">1800</attribute>
 </region>

"yangju" wrote:
I am running jboss 4.2 and hibernate with jboss treecache (deployed as mbean) as hibernate cache provider. I have the following default region evict policy defined in the treecache-service.xml :
<attribute name="EvictionPolicyClass">org.jboss.cache.eviction.LRUPolicy</attribute>
<region name="/_default_">
<!--0 means no limit -->
<attribute name="maxNodes">0</attribute>
<attribute name="timeToLiveSeconds">1800</attribute>
<attribute name="maxAgeSeconds">1800</attribute>
</region>

In my code I save my query cache into a region called "/myregion". However, I don't have region "/myregion" configured. I thought if myregion is not defined in treecache-service.xml, it falls back to _default_ region. So I expected that every 30 mins my cache is flushed. However, I found that the cache is flushed every 3 or 4 hours, not 30 mins as specified in the _default_ region.

Do I have to define myregion? Doesn't treecache uses default cache policy if it cannot fine myregion?

Thanks.


<region name="/_default_">
<!--0 means no limit -->
<attribute name="maxNodes">0</attribute>
<attribute name="timeToLiveSeconds">1800</attribute>
<attribute name="maxAgeSeconds">1800</attribute>
</region>

[manik]

No, it should fall back t the default region. If you switch on your logging, you should see the eviction thread kick in and you can monitor what it does.