[ovs-dev] [db-backup 5/5] Avoid unneeded database compaction at startup, and improve backups.

Ben Pfaff blp at nicira.com
Tue Feb 15 20:17:22 UTC 2011

On Tue, Feb 15, 2011 at 11:33:42AM -0800, Ethan Jackson wrote:
> This looks fine to me. However I'm certainty not the worlds best shell
> programmer.
> > +        elif test "X`ovsdb-tool needs-conversion $conf_file $schema_file`" != Xno; then
> > +            # Back up the old version.
> > +            version=`ovsdb-tool db-version "$conf_file"`
> > +            cksum=`ovsdb-tool db-cksum "$conf_file" | awk '{print $1}'`
> I would tend to prefer to prepend the cksum with something so we don't
> end up creating a hidden file in the case where there is no cksum.

Can you explain why you think that would happen?  As far as I can tell,
if there is no checksum, we just end up with a trailing hyphen in the
filename.  That's slightly ugly but not a real problem, right?

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