"Malformed dumpfile header" after recovering a repository with incremetal backup

Hi,

in the past we backupped our repositories with hotcopy, which worked quite well, but now one of our repositories is so big that we decided to perform a full backup with hotcopy only once a month and doing incremental backups the other days, because changes are made to this repository only every now and then.
But when I performed tests with recovering the repository with reloading the last full backup and additinal loading the incremental dump(s) I get a "Malformed dumpfile header".
This is what I did (Subversion 1.1.4 on Debian Sarge):

To create an incremetal dump:
------------------------------

REPO_DIR=/usr/local/svnrepos
BACKUP_DIR=/usr/local/svndumps
..
YOUNGEST=`svnlook youngest $REPO`
..
for REPO in *; do
..
# read out the last backupped revision number (for we only perform a backup if revision number has changed)
 [ -f $BACKUP_DIR/$REPO.txt ] && LAST=`head -1 $BACKUP_DIR/$REPO.txt`
..
NEXT="$((LAST+1))"
svnadmin dump -r $NEXT:$YOUNGEST --incremental $REPO_DIR/$REPO/ > $BACKUP_DIR/$REPO-$NEXT-$YOUNGEST.dmp
..
done

The incremetal backup completes wiothout errors or warnings.

To recover the repository to the head revision:
-----------------------------------------------
(re-creating the repository with the last full backup with "hotcopy" - works without problems. (Let's say the revision number of the last full backup was 100 and the head revision is 103):

svnadmin load ../svnrepos/Test Test-101-103.dmp

This command doesn't terminate. When hitting <ENTER> I get the above error message.

What's wrong?
Are there any known bugs in recovering a repository with incremental backups?

Any help would be highly appreciated.

Regards,

Undine Thurm.

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Received on Thu Nov 24 18:12:52 2005