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From "Julian Reschke (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JCR-3069) add optional consistency checks to test suite
Date Thu, 06 Oct 2011 11:52:29 GMT

    [ https://issues.apache.org/jira/browse/JCR-3069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13121866#comment-13121866
] 

Julian Reschke commented on JCR-3069:
-------------------------------------

Plan:

- add a new interface defining a checkConsistency variant that can be invoked from test cases
in a meaningful way
- have BundleDBPersistenceManager implement it, with the old code refactored to use the new
implementation
- wire the check into test cases that are relevant (such as ConcurrentImportTest)
                
> add optional consistency checks to test suite
> ---------------------------------------------
>
>                 Key: JCR-3069
>                 URL: https://issues.apache.org/jira/browse/JCR-3069
>             Project: Jackrabbit Content Repository
>          Issue Type: Wish
>          Components: jackrabbit-core
>            Reporter: Julian Reschke
>
> We know that certain sequences of calls can cause the persistent state to become inconsistent,
such as by producing orphaned nodes.
> This usually does not manifest itself in tests failing. However, it can mean (silent)
data loss, and become visible at a different point of time in the form of nodes that can be
discovered using a query, but which can not compute their path.
> Checking the persistence layer's consistency is implementation specific. In Jackrabbit,
there is a consistency check call on the PersistenceManager that we could use. It just logs
a results and doesn't provide a checkable return value, but it would be a start.
> Proposed helper code (thx to Marcel for the proposal):
>      /**
>      * Runs a consistency check on the given workspace.
>      *
>      * @param name the name of the workspace to perform the consistency check.
>      * @param repo the repository instance.
>      * @throws RepositoryException if an error occurs while getting the
>      *                             workspace with the given name.
>      */
>     public static void checkConsistency(String name, RepositoryImpl repo)
>             throws RepositoryException {
>         RepositoryImpl.WorkspaceInfo wspInfo = repo.getWorkspaceInfo(name);
>         wspInfo.getPersistenceManager().checkConsistency(null, true, false);
>     }

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