[ckan-dev] problems with paster db init - can't parse URL

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Hi Jason,

I can't find anything obviously wrong. But from the error, it's fairly clear,
it's a typo of some sort. Do you happen to have '@' or ':' characters in your
password?

On Thu, Jun 12, 2014 at 09:55:45AM +0930, Jason Tan wrote:
> Hi Folks,
>
> Sorry to be asking here, this feels like a problem I should be able to
> solve myself, but I've been trying to work it out for most of two days with
> no luck.
>
> I am installing CKAN 2.1.1 and am having a problem with the
> paster db init command.
>
> The complete error is below, but the last line of the error is:
>     "Could not parse rfc1738 URL from string '%s'" % name)
> sqlalchemy.exc.ArgumentError: Could not parse rfc1738 URL from string
> * 'ckan_prd'*
>
>
> The problem appears to be with one of the database connection strings.
> If I copy and paste the sername, passwd and host from the database
> connection strings to psql on the app server the strings seem to work OK
>
> Here are the database strings:
> (prd)[ckan at ckan-app ckan]$ echo $NODE
> prd
> (prd)[ckan at ckan-app ckan]$ grep -i postgresql  /etc/ckan/${NODE}/${NODE}.ini
>
> sqlalchemy.url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/ckan_prd
>
> ckan.datastore.write_url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/datastore_prd
>
> ckan.datastore.read_url = postgresql://
> datastore_prd:P5ngoueU at ckan-db-prd.green.ersa.edu.au/datastore_prd
>
> I have this running in dev and apart from the fact that I am using
> "default" instead of prd in database and usernames and I have different
> passwords, the database strings look the same to me.
>
> I've found this link
> https://code.google.com/p/sqlalchemy-migrate/issues/detail?id=54 which
> suggests there was a bug under python 2.5 but I am using 2.6 and the same
> version in dev, which appears to work OK and I've got the most recent
> pyhton package available for the distro (centos 6.5).
>
> Below is a more complete output of the steps I am taking with commentary
> inbold.
>
> Thanks and Regards
> Jason
>
>
>
> *I have an env var NODE which I use in the command lines. In this instance
> it evaluates to prd*
> (prd)[ckan at ckan-app ckan]$ echo $NODE
> prd
>
> *I think I am in the correct dir*
> (prd)[ckan at ckan-app ckan]$ pwd
> /usr/lib/ckan/prd/src/ckan
>
> *lets look for ckan_ - which is a string the exception stack trace refers
> to:*
> (prd)[ckan at ckan-app ckan]$ grep -i ckan_ /etc/ckan/prd/prd.ini
> sqlalchemy.url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/ckan_prd
> #sqlalchemy.url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/ckan_prd
> #sqlalchemy.url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/ckan_prd
> ckan.datastore.write_url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/datastore_prd
>
> *check that env var NODE is set, then run the command*
> (prd)[ckan at ckan-app ckan]$ echo $NODE
> prd
> (prd)[ckan at ckan-app ckan]$ paster db init -c /etc/ckan/${NODE}/${NODE}.ini
> Traceback (most recent call last):
>   File "/usr/lib/ckan/prd/bin/paster", line 9, in <module>
>     load_entry_point('PasteScript==1.7.5', 'console_scripts', 'paster')()
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/paste/script/command.py",
> line 104, in run
>     invoke(command, command_name, options, args[1:])
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/paste/script/command.py",
> line 143, in invoke
>     exit_code = runner.run(args)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/paste/script/command.py",
> line 238, in run
>     result = self.command()
>   File "/usr/lib/ckan/prd/src/ckan/ckan/lib/cli.py", line 129, in command
>     self._load_config()
>   File "/usr/lib/ckan/prd/src/ckan/ckan/lib/cli.py", line 91, in
> _load_config
>     load_environment(conf.global_conf, conf.local_conf)
>   File "/usr/lib/ckan/prd/src/ckan/ckan/config/environment.py", line 344,
> in load_environment
>     engine = sqlalchemy.engine_from_config(config, 'sqlalchemy.', **extras)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/__init__.py",
> line 356, in engine_from_config
>     return create_engine(url, **opts)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/__init__.py",
> line 338, in create_engine
>     return strategy.create(*args, **kwargs)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/strategies.py",
> line 48, in create
>     u = url.make_url(name_or_url)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/url.py",
> line 178, in make_url
>     return _parse_rfc1738_args(name_or_url)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/url.py",
> line 219, in _parse_rfc1738_args
>     "Could not parse rfc1738 URL from string '%s'" % name)
> sqlalchemy.exc.ArgumentError: Could not parse rfc1738 URL from string
> 'ckan_prd'
> (prd)[ckan at ckan-app ckan]$ paster db init -c /etc/ckan/prd/prd.ini
> Traceback (most recent call last):
>   File "/usr/lib/ckan/prd/bin/paster", line 9, in <module>
>     load_entry_point('PasteScript==1.7.5', 'console_scripts', 'paster')()
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/paste/script/command.py",
> line 104, in run
>     invoke(command, command_name, options, args[1:])
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/paste/script/command.py",
> line 143, in invoke
>     exit_code = runner.run(args)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/paste/script/command.py",
> line 238, in run
>     result = self.command()
>   File "/usr/lib/ckan/prd/src/ckan/ckan/lib/cli.py", line 129, in command
>     self._load_config()
>   File "/usr/lib/ckan/prd/src/ckan/ckan/lib/cli.py", line 91, in
> _load_config
>     load_environment(conf.global_conf, conf.local_conf)
>   File "/usr/lib/ckan/prd/src/ckan/ckan/config/environment.py", line 344,
> in load_environment
>     engine = sqlalchemy.engine_from_config(config, 'sqlalchemy.', **extras)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/__init__.py",
> line 356, in engine_from_config
>     return create_engine(url, **opts)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/__init__.py",
> line 338, in create_engine
>     return strategy.create(*args, **kwargs)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/strategies.py",
> line 48, in create
>     u = url.make_url(name_or_url)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/url.py",
> line 178, in make_url
>     return _parse_rfc1738_args(name_or_url)
>   File
> "/usr/lib/ckan/prd/lib/python2.6/site-packages/sqlalchemy/engine/url.py",
> line 219, in _parse_rfc1738_args
>     "Could not parse rfc1738 URL from string '%s'" % name)
> sqlalchemy.exc.ArgumentError: Could not parse rfc1738 URL from string*
> 'ckan_prd'*
>
> *OK we get an error lets check for things with "ckan_prd" in the config
> file*
> (prd)[ckan at ckan-app ckan]$ grep -i ckan_prd  /etc/ckan/${NODE}/${NODE}.ini
> sqlalchemy.url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/ckan_prd
> #sqlalchemy.url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/ckan_prd
> #sqlalchemy.url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/ckan_prd
> ckan.datastore.write_url = postgresql://
> ckan_prd:O1eakfeo at ckan-db-prd.green.ersa.edu.au/datastore_prd
>
> *OK so cutting and pasting the database name, username and password from
> the above grep output lets try to connect with psql*
> (prd)[ckan at ckan-app ckan]$ psql -h ckan-db-prd.green.ersa.edu.au ckan_prd
> ckan_prd
> Password for user ckan_prd:
> psql (9.0.17)
> Type "help" for help.
>
> ckan_prd=> \q
> (prd)[ckan at ckan-app ckan]$ psql -h ckan-db-prd.green.ersa.edu.au
> datastore_prd ckan_prd
> Password for user ckan_prd:
> psql (9.0.17)
> Type "help" for help.
> datastore_prd=> \q
>
> *The last database string is the datastore.read_url - it does not include
> "ckan_prd" but lets test it anyway:*
> (prd)[ckan at ckan-app ckan]$ grep read_url  /etc/ckan/${NODE}/${NODE}.ini
> ckan.datastore.read_url = postgresql://
> datastore_prd:P5ngoueU at ckan-db-prd.green.ersa.edu.au/datastore_prd
>
> (prd)[ckan at ckan-app ckan]$ psql -h ckan-db-prd.green.ersa.edu.au
> datastore_prd datastore_prd
> Password for user datastore_prd:
> psql (9.0.17)
> Type "help" for help.
> datastore_prd=> \q
> (prd)[ckan at ckan-app ckan]$
> *Datasotre read URL seems to be OK*
>
>
>
>
>  --
> Jason Tan
> Data Infrastructure Specialist, eResearch SA
>
> phone: +61 8 8313 2184
> Mob: +61 407 268 270
> email: jason.tan at ersa.edu.au
> web: http://www.ersa.edu.au

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--
Nigel Babu
Developer, Open Knowledge

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