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  1. JBoss Enterprise Application Platform 4 and 5
  2. JBPAPP-5763

CLONE - HHH-3608: DB sequence numbers are not unique when using the pooled SequenceStyleGenerator in multiple JVMs with the same DB

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Critical
    • Resolution: Done
    • Affects Version/s: EAP_EWP 5.1.0
    • Fix Version/s: EAP_EWP 5.1.1
    • Component/s: Hibernate
    • Labels:
      None
    • Environment:

      Hibernate 3.3.2_CP03, Oracle (any version)

    • Release Notes Text:
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      When org.hibernate.id.enhanced.OptimizerFactory.PooledOptimizer was used in multiple JVMs with the same database, there was a risk of duplicate sequenced values being generated. This occurred because a method was invoked twice to initialize two different values (value and hiValue). If another JVM requested a sequence value between these invocations, the sequence related to the second invocation. This issue has been corrected by limiting the double-read to optimizer initialization, when the first read gives Hibernate the initialValue.
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      When org.hibernate.id.enhanced.OptimizerFactory.PooledOptimizer was used in multiple JVMs with the same database, there was a risk of duplicate sequenced values being generated. This occurred because a method was invoked twice to initialize two different values (value and hiValue). If another JVM requested a sequence value between these invocations, the sequence related to the second invocation. This issue has been corrected by limiting the double-read to optimizer initialization, when the first read gives Hibernate the initialValue.
    • Release Notes Docs Status:
      Documented as Resolved Issue

      Description

      Customer using @GenericGenerator with SequenceStyleGenerator has encountered issues with optimizers, generating duplicate keys.
      It is extremely important a back port from HHH-3608 (divided in tasks HHH-5217 and HHH-5218) to JBoss EAP.

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            Bug - A problem which impairs or prevents the functions of the product. JBPAPP-5762 HHH-3608: DB sequence numbers are not unique when using the pooled SequenceStyleGenerator in multiple JVMs with the same DB

            • Critical - An upcoming version that is affected by this issue cannot be released until it's addressed. A critical bug is one that crashes the application, causes loss of data or severe memory leak.
            • Closed

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                • Assignee:
                  stliu Strong Liu
                  Reporter:
                  alessandrolt Alessandro Lazarotti
                  Writer:
                  Laura Bailey
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                  Dates

                  • Created:
                    Updated:
                    Resolved: