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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-1428) Add API for selective bundle consistency check (Jackrabbit-specific)
Date Fri, 29 Feb 2008 09:34:52 GMT

    [ https://issues.apache.org/jira/browse/JCR-1428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12573645#action_12573645
] 

Marcel Reutegger commented on JCR-1428:
---------------------------------------

Why are the consistency check method needed on RepositoryImpl? Consistency checking a large
workspace is a heavy
weight operation that may have performance effects. Shouldn't such an operation only be allowed
to an admin user (-> login required)?

> [...] problems with cache coherence and other such stuff.

why exactly is that an issue? the consistency check works on the persistence manager level,
which does not know about transient changes?

> to clean up the versioning "workspace", pass "jcr:system" as workspace name

I would rather use the uuid of the jcr:system node and the method checkConsistency(String[]
uuids, boolean)

> currently I have 3 for WorkspaceImpl and 3 for RepositoryImpl already - checkConsistency(),
> checkConsistency(String[] uuids) and checkConsistency(String[] uuids, boolean recursive)

checkConsistency(String[] uuids) is a convenience method, right? I'd remove that one.

> Add API for selective bundle consistency check (Jackrabbit-specific)
> --------------------------------------------------------------------
>
>                 Key: JCR-1428
>                 URL: https://issues.apache.org/jira/browse/JCR-1428
>             Project: Jackrabbit
>          Issue Type: New Feature
>          Components: jackrabbit-core
>            Reporter: Alexander Klimetschek
>             Fix For: 1.3.4
>
>
> Add a jackrabbit-specific API for doing a selective consistencyCheck, ie. on single nodes.
The current entire-workspace check can be very slow if there workspace is large enough. Also
it should be easy to write a tool to invoke that feature programmatically rather than by configuration
+ restart (see below).
> Existing Implementation:
> The current bundle consistencyCheck feature is enabled by setting a bundle PM parameter
and restarting Jackrabbit, it will then run upon startup (see JCR-972 for the only issue regarding
bundle consistency check). This check looks for broken parent-child relationships, ie. it
will remove any child node entries that reference non-existing parent nodes. For non-existing
parent UUIDs and other problems in bundles it will log those.
> Outlook:
> An advanced consistencyCheck could also check for non-existing version nodes and vice-versa
(see JCR-630), but this is not the focus of this issue and could be a later addition to the
API.

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