问题
Platform: Google Data Studio
Data Source: MySQL
Connection was working before, meaning no issues with credentials.
All of a sudden, getting the below error:
All IPs have been whitelisted from the google data studio list of ips.
The only thing that comes to mind is a limitation of GDS to process data. The data source table has around 200K+ rows.
Not sure what is the limitation for GDS with MySQL. There's no indication anywhere.
Anyone out there can help to solve this or maybe provide some info would be appreciated.
Thanks
回答1:
If you use a firewall, be sure to double check the Google ip adresses. They may have added new ips (in my case, the last one was missing).
Check them here !
After doing so, I had to change the Host name of the connection to the database for a url alias (www.yourserver.com <- url pointing on your server), and change it back to the IP to make it work.
回答2:
Sounds like a the connector cannot establish a new connection.
Cloud SQL Connector: At the time of writing this, the connector seems unable to establish a new connection once the existing one has timed out and modifying the JDBC url to include query parameters gives you an error when authenticating. This is probably due to the connector appending it's own parameters.
(Seems to be a possible bug here when a connection no longer exists)
MySQL Connector (with IP Address):
This connector allows you to add query parameters to the JDBC url. Enable SSL and append useSSL=true to the url.
e.g.jdbc:mysql://<ip>/<database>?useSSL=true
This worked as expected and establishes new connections when required. Example Source Setup
回答3:
Suffering from this issue too, my experience is that using the MySQL connector instead of the Cloud SQL Connector provides better stability in combination with setting wait_timeout to a value above 12 hours.
This issue has been reported on the official Google Data Studio bug tracker. Please vote them up if you are also suffering from this !
- 🐛 130205306 MySQL connection does not exist Apr 9, 2019 04:36PM
- 🐛 118470083 Data source password not stored for MySQL sources. Oct 26, 2018 01:24PM
来源：https://stackoverflow.com/questions/50725249/google-data-studio-mysql-data-source-connection-does-not-exist-error