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From Nicolas Peltier <npelt...@adobe.com>
Subject Re: How to store binary data?
Date Tue, 16 Oct 2012 14:23:01 GMT
You might create another workspace in the same repository, with different
persistence manager, and try to fetch the data from the original workspace?

On 10/16/12 3:04 PM, "danisevsky" <danisevsky@gmail.com> wrote:

>Thank you Nicolas, now it is more obvious for me. So I think I made a
>big mistake when i choose BundleFsPersistenceManager. Is it possible
>to migrate my data from BundleFsPersistenceManager to for example
>MySqlPersistenceManager?
>
>Thanks a lot.
>
>2012/10/16 Nicolas Peltier <npeltier@adobe.com>:
>> Hi,
>>
>> Persistence manager and datastore are two different things in
>>jackrabbit,
>> the first is for persisting hierarchy, alphanumeric properties, and
>>binary
>> properties smaller than iirc 4KB per default (configurable), the second
>>is
>> for storing binary properties bigger than that threshold.
>> This means that your photo (bigger than 4b) will have a track in the
>> persistence manager (which can be e.g. DerbyPM), and one in the
>>datastore.
>>
>> Hope this helps,
>> Nicolas
>>
>> On 10/16/12 1:23 PM, "danisevsky" <danisevsky@gmail.com> wrote:
>>
>>>Hi all,
>>>
>>>I am using Jackrabbit for storing photos. Users can read and upload
>>>photos. Current size of workspace is about 100GB and my repository
>>>configuration looks like this:
>>>
>>><Repository>
>>>    <FileSystem
>>>class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
>>>        <param name="path" value="${rep.home}/repository"/>
>>>    </FileSystem>
>>>    ...
>>>    <Workspaces rootPath="${rep.home}/workspaces"
>>>defaultWorkspace="default"/>
>>>    <Workspace name="${wsp.name}">
>>>        <FileSystem
>>>class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
>>>            <param name="path" value="${wsp.home}"/>
>>>        </FileSystem>
>>>        <PersistenceManager
>>>class="org.apache.jackrabbit.core.persistence.bundle.BundleFsPersistence
>>>Ma
>>>nager">
>>>                   <param name="blobFSBlockSize" value="0"/>
>>>                   <param name="minBlobSize" value="4096"/>
>>>                   <param name="errorHandling" value=""/>
>>>        </PersistenceManager>
>>>        ...
>>>    </Workspace>
>>>    ...
>>></Repository>
>>>
>>>Now I am quite confused because I read that BundleFsPersistenceManager
>>>is not meant to be used in production environments (except for
>>>read-only uses) [1].
>>>Could someone tell me what I should to use? Is DataStore [2] suitable
>>>filesystem (I do not think that store photos in DB is good option)
>>>solution for production use? And how to migrate all data? I am using
>>>Jackrabbit 2.5.1.
>>>
>>>I would be very thankful for explanation.
>>>
>>>[1] http://wiki.apache.org/jackrabbit/PersistenceManagerFAQ
>>>[2] http://wiki.apache.org/jackrabbit/DataStore
>>


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