Comments (8)
I'm presuming the host
dbname
port
user
extraction logic does not support all the formats of connection strings that psycopg supports.
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psycopg2.connect()
Supports 3 variants of operation:
psycopg2.connect("dbname=test user=postgres password=secret")
psycopg2.connect(dbname="test", user="postgres", password="secret")
psycopg2.connect()
Variant 3 is ok if arguments are passed via env-vars:
Any other connection parameter supported by the client library/server can be passed either in the connection string or as a keyword. The PostgreSQL documentation contains the complete list of the supported parameters. Also note that the same parameters can be passed to the client library using environment variables.
aws-xray-sdk-python does not support variant 3 or mix of variant 2 and 3.
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It may not be obvious but use of patch_all() or patch of psycopg will cause any code error out and stack trace when opening connection to database. This is quite serious bug.
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After some more digging around turns out problem was different but solution remained the same.
Psycopg supports passing of database name both as dbname
and as database
. SQL Alchemy uses the database
variety triggering the bug.
https://github.com/psycopg/psycopg2/blob/master/lib/__init__.py#L96
There may still be a way to use method 3 as described in comment above but its not obvious. And psycopg will error out if there are no arguments on connect. https://github.com/psycopg/psycopg2/blob/master/lib/__init__.py#L122 Maybe if you set port via kwarg / dsn but the rest via env var?
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Getting this error when database is localhost
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Is this still an issue or was this solved with 180de75?
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@Tankanow this is fixed in the commit you mentioned. We will close this issue once the commit is released (which should be soon).
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The fix is released in 2.2.0 https://pypi.org/project/aws-xray-sdk/. Closing.
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