Francis, Your backup and restore process looks fine, and I don't see any reason why it should be changing your database values. You might want to compare your database tables before and after the restore -- especially looking at the 'handle' table (which stores handles and relates them to community/collections/items), and the 'bitstream' table (which is where the sequence_id is stored for individual files). These tables should obviously not be changing during a normal backup and restore process.
As I've mentioned, if you are actually uploading *new* files or replacing existing files, then the Sequence ID *will* change. So, if you are using the JSPUI, you'll see your file URLs change in that scenario, as the JSPUI creates file URLs like: http://demo.dspace.org/jspui/bitstream/10673/4/2/test_pdf.pdf essentially this translates to: http://[dspace-url]/bitstream/[handle-prefix]/[handle-suffix]/[sequence-id]/[file-name] (Notice that the sequence-id is included in the URL at all times -- if this ID changes, the URL will obviously change) But, as I mentioned previously the XMLUI has a different URL structure for files, that is less reliant on the sequence_id. The XMLUI has a URL structure like: http://demo.dspace.org/xmlui/bitstream/handle/10673/4/test_pdf.pdf essentially this translates to: http://[dspace-url]/bitstream/[handle-prefix]/[handle-suffix]/[file-name] (In this case, the sequence id is not needed unless you have two files of the same name in the same Item -- in which case you can specify it by adding "?sequence=#" on the end of the URL) If this is at all unclear, you can use our Demo Server to browse around a sample JSPUI and XMLUI and get a better understanding of these URLs: * Demo JSPUI: http://demo.dspace.org/jspui/ * Demo XMLUI: http://demo.dspace.org/xmlui/ I hope you find this helpful. I still cannot be sure what problems you may be running into (as you seem to be doing everything correctly -- unless I'm misunderstanding). Perhaps you are still confusing the "sequence_id" and the handle? Again, the "sequence_id" may change when new files are uploaded to an item (though it shouldn't change during a backup and restore). The Handle should never change. - Tim On 8/4/2010 12:07 AM, فرانسيس Franci$ wrote: > Hi Tim > > i do the backup in this fashion > first i take the dump > /usr/local/pgsql/bin/pg_dump dspace > dspace.sql > i airchive the assetstore directory > on the new machine i first resotre the dump by using this commnad > /usr/local/psql/bin/psql -f dspace.sql dspace -h ipaddress > as mention on this webiste > > http://ardb4.ncsi.iisc.ernet.in/dspace/ds_backup.htm#ds > please help me ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://p.sf.net/sfu/dev2dev-palm _______________________________________________ DSpace-tech mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dspace-tech
