我被要求帮助处理遗留系统上损坏的备份脚本。服务器上有一个脚本文件，应该每小时运行一次，将数据库备份到Rackspace云。结果是这样的。
START cf-postgresql-dump ...
Wed 04 Nov 2015 06:49:09 AM EST
Synchronizing remote metadata to local cache...
Copying duplicity-full-signatures.20130622T180407Z.sigtar.gpg to local cache.
Download of 'duplicity-full-signatures.20130622T180407Z.sigtar.gpg' failed (attempt 1): CloudFiles returned: 404 Not Found
Download of 'duplicity-full-signatures.20130622T180407Z.sigtar.gpg' failed (attempt 2): CloudFiles returned: 404 Not Found
Download of 'duplicity-full-signatures.20130622T180407Z.sigtar.gpg' failed (attempt 3): CloudFiles returned: 404 Not Found
Download of 'duplicity-full-signatures.20130622T180407Z.sigtar.gpg' failed (attempt 4): CloudFiles returned: 404 Not Found
Download of 'duplicity-full-signatures.20130622T180407Z.sigtar.gpg' failed (attempt 5): CloudFiles returned: 404 Not Found
Giving up downloading 'duplicity-full-signatures.20130622T180407Z.sigtar.gpg' after 5 attempts
问题的根源是什么？解决问题的方法是什么？正如我所看到的，我们的备份存储中缺少一个文件，因此我们无法进行增量备份。我说得对吗？
闻起来好像cf后端坏了。可能是cf API中的一些更改。
尝试更新到最新的双工0.6.x或0.7.x，然后重试。
ede/duply.net