Re: RepositoryCopier requires shutdown of source repositoy?

[Samuel Cox <cr...@gmail.com>]

Jukka Zitting wrote:
> Hi,
> 
> On Thu, Dec 10, 2009 at 1:34 PM, Samuel Cox <cr...@gmail.com> wrote:
>> I need to backup our repository periodically and anticipate using the
>> RepositoryCopier class.  I was curious that 2 of the methods in the Javadoc
>> mention that the source repo must not be modified during the call; however,
>> the others do not.  Is it possible for me to perform a backup while still
>> allowing JCR API calls that modify the repo?  In other words, will
>> RepositoryCopier somehow lock/cache/unlock/flush/etc for me?
>>  I'm guessing it won't/can't do this.
> 
> You're right, the RepositoryCopier doesn't contain any protection
> against concurrent changes to the repository. If you allow clients to
> modify the repository while you're backing it up, you may end up with
> an inconsistent backup.

I cannot get RepositoryCopier to work regardless of whether or not 
someone is modifying it.  I get the following error if I've already 
created a TransientRepository and logged in.

javax.jcr.RepositoryException: The repository home 
/opt/fuse-esb-4.1.0.0/data/di/repository/design/repository/repository 
appears to be in use since the file named .lock is already locked by the 
current process.
	at 
org.apache.jackrabbit.core.util.RepositoryLock.tryLock(RepositoryLock.java:159)
	at 
org.apache.jackrabbit.core.util.RepositoryLock.acquire(RepositoryLock.java:138)

Does this mean that I have to shutdown the TransientRepository before I 
can perform the backup?  When I do that it works, but I was under the 
impression I did not have to do this.

Thanks.

-- 
Samuel Cox

Re: RepositoryCopier requires shutdown of source repositoy?

[Thomas Müller <th...@day.com>]

Hi,

> I cannot get RepositoryCopier to work regardless of whether or not someone
> is modifying it.  I get the following error if I've already created a
> TransientRepository and logged in.

See http://wiki.apache.org/jackrabbit/RepositoryLock#Why_Is_the_Repository_Locked

> Does this mean that I have to shutdown the TransientRepository before I can
> perform the backup?

You need to only one Repository instance at any time. You can open
multiple sessions however.

Regards,
Thomas