07-11-2006 04:40 AM
07-11-2006 07:01 AM
- a complete backup must include both the database and the file system.
- administrators must both manage the disk space for the data files and the DB files.Both of the above generalized statements are true, however
- no transactional integrity; there is always a risk that the database and the file system are not in sync.is not true for Alfresco. We are not "fairly common" in the sense that Alfresco's content is transactionally safe and will always have finished writing the content before the transaction is allowed to commit. In fact, we can guarantee replication of content to multiple stores within the same transaction. I suggest you take a long, hard look at the code before making generalizations. Specifically, take a look at (a) how the metadata is transactionally updated when the content IO channel is closed, (b) how the content URLs are assigned when writing to existing files, or © whether or not you can actually break it.
07-11-2006 09:00 AM
Alfresco's content is transactionally safe and will always have finished writing the content before the transaction is allowed to commit.Sorry for being picky: if you have a crash right after having written the content, but before having commited the transaction, then you may have some orphan files on the disk (which is indeed no big deal).
07-11-2006 10:36 AM
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