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redaguermas
 Post subject: Cache invalidation messages
PostPosted: Mon Apr 19, 2004 3:56 pm 
Newbie

Joined: Wed Mar 03, 2004 4:01 pm
Posts: 2
Location: San Francisco
We are developing a Hibernate (version 2.1.2) solution using swarmcahe clustered cache. When we use HQL to query the database we noticed that unchanged objects that already exist in the secondary cache result in a multicast of invalidation messages for these particular objects. This behavoir causes an undesired network traffic. I am not sure if this is a configuration problem or just a side effect of the caching mechanism.
In debugging through the code we discovered that hibernate tries to put the retrieved records in the secondary cache and that causes the invalidation to be sent to all servers in the cluster.

Thank you for a great product.
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michael
 Post subject:
PostPosted: Mon Apr 19, 2004 4:03 pm 
Hibernate Team
Hibernate Team

Joined: Tue Sep 09, 2003 2:10 pm
Posts: 3246
Location: Passau, Germany
This can be configured by setting hibernate.cache.use_minimal_puts = true
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michael
 Post subject:
PostPosted: Mon Apr 19, 2004 4:05 pm 
Hibernate Team
Hibernate Team

Joined: Tue Sep 09, 2003 2:10 pm
Posts: 3246
Location: Passau, Germany
See here: http://opensource.atlassian.com/projects/hibernate/browse/HB-641
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redaguermas
 Post subject: Cache invalidation messages
PostPosted: Mon Apr 19, 2004 6:10 pm 
Newbie

Joined: Wed Mar 03, 2004 4:01 pm
Posts: 2
Location: San Francisco
Works like a charm. Thank you guys.
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