[jboss-user] [JBoss Cache Users] - Re: JBoss cache / WebLogic: problem with suspend/resume tran

bstansberry@jboss.com do-not-reply at jboss.com
Thu Oct 29 20:33:31 EDT 2009

JBoss Cache doesn't suspend/resume the transaction; it's Hibernate's integration with JBC that does this. If JBC sees an active transaction it will hold a lock on data in the cache until that tx commits. There are times when it's incorrect for those locks to be held for that long, so Hibernate suspends the tx before calling into JBC.

To avoid these suspensions you should:

1) Not use query caching, since the suspensions are very common with query caching operations.

2) Avoid bulk operations (executing SQL or HQL that modifies multiple entities) since that results in cache-clearing operations that involve suspending any active tx.

3) For the same reason, avoid the org.hibernate.SessionFactory evict* methods and the org.hibernate.Cache evict* methods.

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