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https://issues.apache.org/jira/browse/IGNITE-3429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15860221#comment-15860221
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Fred commented on IGNITE-3429:
------------------------------
By chance, does anyone have some examples / tests? Upgraded to apache ignite
1.8. I configured BinaryTypeConfiguration with
(org.hibernate.cache.internal.OldCacheKeyImplementation) from above then used
files from https://issues.apache.org/jira/browse/IGNITE-1794 since on Hibernate
5.2.7. I noticed the BinaryAbstractIdentityResolver being called and returning
true but when I call the same service I noticed the database being hit.
XML Configuration from
http://apacheignite.gridgain.org/v1.6/docs/hibernate-l2-cache
```
hibernate.cache.use_query_cache=true
hibernate.cache.use_second_level_cache=true
hibernate.cache.region.factory_class=org.apache.ignite.cache.hibernate.HibernateRegionFactory
org.apache.ignite.hibernate.default_access_type=READ_ONLY
<bean parent="transactional-cache">
<property name="name" value="com.model.Access" />
</bean>
@Entity(name = "Person")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Person
```
> org.hibernate.cache.spi.CacheKey not properly serialized by binary marshaller
> -----------------------------------------------------------------------------
>
> Key: IGNITE-3429
> URL: https://issues.apache.org/jira/browse/IGNITE-3429
> Project: Ignite
> Issue Type: Bug
> Components: cache, Hibernate L2 cache
> Affects Versions: 1.6
> Reporter: Valentin Kulichenko
> Assignee: Andrew Mashenkov
> Priority: Critical
> Fix For: 2.0
>
>
> {{org.hibernate.cache.spi.CacheKey}} is a class used as a key for all entries
> in the Hibernate L2 cache. This class contains {{type}} field and custom
> {{equals}} logic where the type is used as a helper and does not participate
> in comparison. Instances of the same type are producing different hash codes
> in different JVMs, which actually breaks comparison when binary format is
> used, where byte arrays are compared.
> The issue is described in more detail here:
> http://stackoverflow.com/questions/38132263/apache-ignite-as-hibernate-l2-cache-storing-duplicate-entities
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