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From "Hatherly, Adam \(GE Money\)" <Adam.Hathe...@ge.com>
Subject RE: Caching problem with shared deployment
Date Mon, 16 Apr 2007 11:31:55 GMT
Thanks for your speedy response - I am indeed running as a model 2 deployment - my repository
config is:

<?xml version="1.0" encoding="ISO-8859-1"?>
    <FileSystem class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
        <param name="path" value="c:/repository/repository"/>
    <Security appName="Jackrabbit">
        <AccessManager class="org.apache.jackrabbit.core.security.SimpleAccessManager"/>
        <LoginModule class="org.apache.jackrabbit.core.security.SimpleLoginModule">
                <param name="anonymousId" value="anonymous"/>
    <Workspaces rootPath="c:/repository/workspaces" defaultWorkspace="default" />
    <Workspace name="${wsp.name}"> 
        <FileSystem class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
            <param name="path" value="c:/repository"/>
        <PersistenceManager class="org.apache.jackrabbit.core.persistence.db.DerbyPersistenceManager">
            <param name="url" value="jdbc:derby:${wsp.home}/db;create=true"/>
            <param name="schemaObjectPrefix" value="${wsp.name}_"/>
        <SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
            <param name="path" value="${wsp.home}/index"/>
            <param name="useCompoundFile" value="true"/>
            <param name="minMergeDocs" value="100"/>
            <param name="volatileIdleTime" value="3"/>
            <param name="maxMergeDocs" value="100000"/>
            <param name="mergeFactor" value="10"/>
            <param name="bufferSize" value="10"/>
            <param name="cacheSize" value="1000"/>
            <param name="forceConsistencyCheck" value="false"/>
            <param name="autoRepair" value="true"/>
            <param name="analyzer" value="org.apache.lucene.analysis.standard.StandardAnalyzer"/>
    <Versioning rootPath="c:/repository/versions">
        <FileSystem class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
            <param name="path" value="c:/repository/versions"/>
        <PersistenceManager class="org.apache.jackrabbit.core.persistence.db.DerbyPersistenceManager">
             <param name="url" value="jdbc:derby:${rep.home}/version/db;create=true"/>
             <param name="schemaObjectPrefix" value="version_"/>

And I have set it up as a "Resource Environment Provider" in Websphere 5.1, configured in
a similar way as mentioned on this post: http://epesh.blog-city.com/jackrabbit_and_glassfish_v2.htm

To initialise the repository I use the code:

InitialContext ctx = new InitialContext();
_repository = (Repository) ctx.lookup("java:comp/env/jcr/repository");
SimpleCredentials cred = new SimpleCredentials("user","password".toCharArray());
Session session = _repository.login(cred, null);
Workspace workspace = session.getWorkspace();

I did look at configuring the repository as a "Resource Adapter" rather than a "Resource Environment
Provider" but couldn't get it to work in Websphere.


-----Original Message-----
From: David Nuescheler [mailto:david.nuescheler@gmail.com]
Sent: 16 April 2007 11:55
To: users@jackrabbit.apache.org
Subject: Re: Caching problem with shared deployment

hi adam,

it sounds like you might be running two jackrabbit instances against the
same backing store, which is something that jackrabbit is not designed to do.
i would recommend to connect from branding editor application through rmi
to the "web site"-app or run the repository as a resource in websphere.

if you already are running model (2) or model(3) then i think we would
have to look at your repository.xml file(s) and also see how you create the
repository itself. maybe you could attach the code that you use to get a hold
of the repository object?

since lucene is not used for a getNode(key) call, i think it is unlikely to
have something to do with lucene.


On 4/16/07, Hatherly, Adam (GE Money) <Adam.Hatherly@ge.com> wrote:
> Hi - I have a small problem you may be able to help me with.
> I am using Jackrabbit to apply "branding" to a web page dynamically, and to that end
I have deployed two separate web apps to a server - one which is the actual web site, and
a second which is the "branding" editor that allows me to update image elements in the jackrabbit
repository to alter branding on the page.
> My problem occurs if I delete an element and then recreate it using the same path. When
I do that, the change is reflected correctly within the "editor" web app, but when the normal
web app tries to retrieve the element I get this error:
> /89/25/ebd281b64edfb93b597753c5e716/%7b%7ddata.0.bin: the specified resource does not
exist: /home/wasadmin/repository/workspaces/default/blobs/89/25/ebd281b64edfb93b597753c5e716/%7b%7ddata.0.bin
does not denote an existing file
> I am retrieving the node from the repository using:
> Node rootNode = session.getRootNode();
> Node node = rootNode.getNode(key);
> Where key is the path of the node I want.
> I can only assume it is related to some in-memory indexing/caching within lucene, as
a server restart fixes the problem. Do you know of any way I can overcome the problem so I
don't need a restart every time I change or delete/recreate a node?
> Thanks,
> Adam.

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