[teiid-issues] [JBoss JIRA] Resolved: (TEIID-1256) Clear caches when VDB with same version re-deployed

[Ramesh Reddy (JIRA)]

     [ https://jira.jboss.org/browse/TEIID-1256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ramesh Reddy resolved TEIID-1256.
---------------------------------

    Resolution: Done


When VDB is undeployed, the prepareplan cache and resultset cache are flushed. Any sessions to the old VDB  are also terminated.

> Clear caches when VDB with same version re-deployed
> ---------------------------------------------------
>
>                 Key: TEIID-1256
>                 URL: https://jira.jboss.org/browse/TEIID-1256
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: 7.1
>            Reporter: Ramesh Reddy
>            Assignee: Ramesh Reddy
>             Fix For: 7.1.1
>
>
> When a VDB with same name and version is re-deployed, the new re-deployed VDB may have its metadata changed. In this case if Teiid has any
> PreparedPlanCache 
> ResultSetCache
> they need to flushed for that VDB, otherwise it will produce wrong results. One issue is there could be active connections on VDB, those need to be terminated also. Based on how failover is configured they may re-connect on the next query automatically.

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