Hi Stefan,

Thanks for your quick reply...

On 27 Aug 2010, at 11:36, Stefan Guggisberg wrote:

> hi robin,
> 
> On Fri, Aug 27, 2010 at 11:25 AM, Robin Wyles <[email protected]> wrote:
>> Hi,
>> 
>> I'm having problems migrating an existing repository from Jackrabbit 1.6.0 
>> to 2.1.0.
>> 
>> Here are the steps I followed to test the migration:
>> 
>> 1. Update app to use Jackrabbit 2.1.0, run unit tests etc. Manually test 
>> against empty 2.1.0 repository. All works fine here. Our repository 
>> configuration has not changed at all between versions.
>> 
>> 2. Used mysqldump to export production repository.
>> 
>> 3. Copy production repository directory (workspace folder, datastore, index 
>> folders etc.) to test machine.
>> 
>> 4. Import SQL file from 2 above to new DB on test machine.
>> 
>> 5. Start application on test machine.
>> 
>> The result of the above is that the application starts up without error but 
>> that the repository appears empty. I am able to add new nodes to the 
>> repository, which behave correctly within the application yet none of the 
>> existing nodes are visible. I've tried xpath queries against known paths, 
>> e.g. "//library/*" and these return 0 nodes.
>> 
>> A few things I've tried/noticed:
>> 
>> 1. Repeating steps 3 and 4 above, then removing the old index directories 
>> before starting the application. Jackrabbit creates new lucene indexes, but 
>> they are very small, just like they would be when initialising an empty 
>> repository. Also, the index files are called indexes_2 rather than indexes 
>> as they were under 1.6.0.
>> 
>> 2. When starting the app after the migration I notice that 4 extra records 
>> have been added to the BUNDLE table, 3 extra records are added to the 
>> VERSION_BUNDLE table and 2 extra records added to the VERSION_NAMES table. 
>> Again, this seems to be consistent with what is added automatically added to 
>> the database when a new repository is initialised.
>> 
>> So, basically it appears that Jackrabbit is completely ignoring the existing 
>> repository data, and instead initialising a new repos using the existing 
>> database…
>> 
>> If anyone has any ideas as to how I can get 2.1.0 to recognise our existing 
>> repository they'd be gratefully received - I feel there must be something 
>> simple I've overlooked!
> 
> hmm, seems like the key values (i.e. the id format) has changed.
> however, i am not aware of such a change.
> maybe someone else knows more?

The release notes for Jackrabbit 2.0.0 claim that it is backward compatible 
with 1.x repositories. I've seen a couple of messages on the users list 
relating to migration issues but these seem to involve custom nodetypes, 
whereas our repository has no custom nodetypes. 

How may I see what key values/ID format is used by the different versions? This 
sounds like quite a major change to me, and I'm sure  something that would've 
been documented!

Thanks,

Robin



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