我想拍摄一个在app中运行的数据库的快照www并将其放入app中staging。当我使用克隆或创建/导入进行操作时，没有可用的数据。
我打算怎么做？
matt@server:~$ dokku run www curl http://www:password@dokku-couchdb-www:5555/www
{"db_name":"www","doc_count":4966,"doc_del_count":232,"update_seq":46475,"purge_seq":0,"compact_running":false,"disk_size":3071180923,"data_size":334987077,"instance_start_time":"1500006610823893","disk_format_version":6,"committed_update_seq":46475}
因此，您可以看到有4966个文档。
matt@server:~$ dokku couchdb:clone www staging_www
-----> Starting container
Waiting for container to be ready
=====> CouchDB container created: staging_www
DSN: http://staging_www:password@dokku-couchdb-staging-www:5555/staging_www
-----> Copying data from www to staging_www
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1110M 0 1110M 0 0 30.4M 0 --:--:-- 0:00:36 --:--:-- 31.9M
-----> Done
因此，克隆中没有错误。然后我跑
dokku couchdb:link staging_www staging
dokku couchdb:promote staging_www staging
并且没有错误，但是如果我检查数据库：
matt@server:~$ dokku run staging curl http://staging_www:password@dokku-couchdb-staging-www:5555/staging_www
{"db_name":"staging_www","doc_count":1,"doc_del_count":0,"update_seq":1,"purge_seq":0,"compact_running":false,"disk_size":4188,"data_size":342,"instance_start_time":"1509536857606369","disk_format_version":6,"committed_update_seq":1}
文件数为1，我无法存取staging应用程式中的任何资料。
我也尝试过
dokku couchdb:export www > www.couch
dokku couchdb:create staging_www
dokku couchdb:import staging_www < www.couch
dokku couchdb:link staging_www staging
dokku couchdb:promote staging_www staging
没有错误，但是我又在数据库中得到了1个文档。
我该怎么办？