我按照说明在Ubuntu 12.04 LTS上安装ckan作为软件包。无法上传到ckan 2.5.1中的数据存储：使用postgres用户而不是配置一个
我还配置了数据存储扩展。数据库已创建，默认用户和密码已在/etc/ckan/default/production.ini配置
我的问题是，每次我想上传一个数据集到DataStore（使用按钮“上传到DataStore“），它似乎一切正常。但是，如果我点击别的地方，然后再次单击数据存储中我碰到下面的红色错误框：
Error: CKAN DataStore bad response. Status code: 409 Conflict. At: http://xubuntu12ltsckan/api/3/action/datastore_create . HTTP status code: 409 Response: {"help": " http://xubuntu12ltsckan/api/3/action/help_show?name=datastore_create ", "success": false, "error": {"fields": ["\"2016-01-07 14:35:12 ERROR : Error connecting to the server: FATAL: password... Requested URL: hhttp://xubuntu12ltsckan/api/3/action/datastore_create
（三URL错位的，因为我没有名声后超过2个网址）
该/var/log/apache2/datapusher.error.log列出了这些线：
Fri Jan 22 13:38:24 2016] [error] /usr/lib/ckan/datapusher/lib/python2.7/site-packages/sqlalchemy/sql/sqltypes.py:185: SAWarning: Unicode type received non-unicode bind param value '42e50497-2231-4c86-b8db-d...'. (this warning may be suppressed after 10 occurrences)
[Fri Jan 22 13:38:24 2016] [error] (util.ellipses_string(value),))
[Fri Jan 22 13:38:24 2016] [error] Fetching from: http://xubuntu12ltsckan/dataset/f4f9e859-fa6a-4257-8727-32358b448864/resource/d938a82f-95f7-4abd-b982-b32174dfa584/download/pgadmin.log
[Fri Jan 22 13:38:24 2016] [error] Deleting "d938a82f-95f7-4abd-b982-b32174dfa584" from datastore.
[Fri Jan 22 13:38:24 2016] [error] Determined headers and types: [{'type': u'text', 'id': u'2016-01-07 14:35:12 ERROR : Error connecting to the server: FATAL: password authentication failed for user "postgres"'}]
[Fri Jan 22 13:38:24 2016] [error] Saving chunk 0
[Fri Jan 22 13:38:24 2016] [error] Job "push_to_datastore (trigger: RunTriggerNow, run = True, next run at: None)" raised an exception
[Fri Jan 22 13:38:24 2016] [error] Traceback (most recent call last):
[Fri Jan 22 13:38:24 2016] [error] File "/usr/lib/ckan/datapusher/lib/python2.7/site-packages/apscheduler/scheduler.py", line 512, in _run_job
[Fri Jan 22 13:38:24 2016] [error] retval = job.func(*job.args, **job.kwargs)
[Fri Jan 22 13:38:24 2016] [error] File "/usr/lib/ckan/datapusher/src/datapusher/datapusher/jobs.py", line 387, in push_to_datastore
[Fri Jan 22 13:38:24 2016] [error] records, api_key, ckan_url)
[Fri Jan 22 13:38:24 2016] [error] File "/usr/lib/ckan/datapusher/src/datapusher/datapusher/jobs.py", line 203, in send_resource_to_datastore
[Fri Jan 22 13:38:24 2016] [error] check_response(r, url, 'CKAN DataStore')
[Fri Jan 22 13:38:24 2016] [error] File "/usr/lib/ckan/datapusher/src/datapusher/datapusher/jobs.py", line 137, in check_response
[Fri Jan 22 13:38:24 2016] [error] request_url=request_url, response=response.text)
[Fri Jan 22 13:38:24 2016] [error] HTTPError
所以我的问题是，由于某种原因，我不知道CKAN尝试连接到与用户的Postgres的Postgres数据库。
我production.ini而不是看起来是这样的：
## Database Settings
sqlalchemy.url = postgresql://ckan_default:[email protected]/ckan_default
ckan.datastore.write_url = postgresql://ckan_default:[email protected]/datastore_default
ckan.datastore.read_url = postgresql://datastore_default:[email protected]/datastore_default
还有就是在这个文件中的默认数据库管理员用户没有提及。 “ckan_default”角色具有CREATE/TEMP/CONNECT权限，“datastore_default”具有datastore_default数据库上的CONNECT权限。
我在这里看不到任何访问限制。有人可以帮我解决这个问题吗？