I am trying to connect to Cloud Sql 2nd generation by using jdbc connector, by typing:
url = jdbc:google:mysql://project:region:instance/database?user=root
However, when doing this:
DriverManager.getConnection(url);
All I get is a null value.
I did not experience any trouble with first generation and old connection string, but I am not able to get this one working.
Anything in particular that I should consider like settings, missing code/connector? Any help will be greatly appreciated.
Thanks in advance!
Thanks to Vadim suggestion, I could find that there was a problem sending the wrong credentials to the database.
I will post the jdbc connection string here, since I could not find the complete way for the connection string in any page, I just found separate portions to build it.
Here it goes:
url = "jdbc:google:mysql://<your-project-id>:<your-cloud-sql-region>:<your-cloud-sql-instance>/<your-database-name>?user=<your-user>&password=<your-password>";
Hope this can help to save some time!
Related
I have successfully installed SnowSQL Client version 1.2.5 and while trying to get log into my snowflake account, using account id, username and password, I am somehow unable to connect and get following error:
snowsql unable to log in
This appears to be networking issue. Have you tried to set that debug logging as directed?
To assist in situations like this, Snowflake has a tool which could help you determine if your client host is able to access all required network endpoints for your Snowflake account, it's called SnowCD, the documents are here and the installation is fairly straightforward:
https://docs.snowflake.com/en/user-guide/snowcd.html
I'd recommend trying SnowCD as your first step, the next step would be to review any required proxy settings your organization might have. I'd also double-check your "account name" argument, the URL looks OK to me but there is a nice writeup on the account name construction at this link:
https://docs.snowflake.com/en/user-guide/connecting.html#your-snowflake-account-name
I hope this helps...Rich
THANKS Rich for doing some R&D and sharing proposals. I got successfully logged into snowsql by providing my account id till ".aws". Hope it will help others struggling so far, like myself:
https://docs.snowflake.com/en/user-guide/getting-started-tutorial-log-in.html
demo log in
I am trying to connect data studio to a MySQL second-generation instance in Google Cloud SQL. I am using a JDBC URL like this:
jdbc:mysql://104.xx.yy.zz/prod
But keep getting this:
The server encountered an internal error and was unable to complete your request.
Has anyone else seen this?
Thanks for any tips or pointers.
Problem solved: the following IP addresses needed to be added as authorized networks in the Access Control section of Cloud SQL. Really wish Google would say something like "connection refused" rather than "internal error".
64.18.0.0/20
64.233.160.0/19
66.102.0.0/20
66.249.80.0/20
72.14.192.0/18
74.125.0.0/16
173.194.0.0/16
207.126.144.0/20
209.85.128.0/17
216.239.32.0/19
I think that previous list is missing a couple IPs. Here is a more comprehensive list:
64.18.0.0/20
64.233.160.0/19
66.102.0.0/20
66.249.80.0/20
72.14.192.0/18
74.125.0.0/16
108.177.8.0/21
173.194.0.0/16
207.126.144.0/20
209.85.128.0/17
216.58.192.0/19
216.239.32.0/19
Recently, we have been working on publishing and subscribing weather information for building load prediction. When we try to run the weather agent, there are errors as shown below:
We stick to every instruction in the VOLLTRON 3.0 user guide and it still doesn't work. How to fix that problem? Thank you!
This usually means that there is a problem with the key or a problem connecting with weatherunderground.
You can manually verify your key and connection with:
Replace with your own key
curl http://api.wunderground.com/api/<your key>/conditions/q/37918.json
I have been struggling with a problem in Google App Engine, using Java, for several days.
Many times (about 50% of the time) when I try to request the connection to a Cloud Sql instance, the connection returns a null value, resulting in several NullPointerException messages when trying to invoke Cloud Sql queries (when invoking .prepareCall(stored_proc)).
I have the latest App Engine Java SDK, in a project service, shared with other services built in Python which consume this Java backend.
Could it be possible that after certain time the instance/s could crash (I am just testing at this point, so I am using default scalation)?
This is the code that returns null:
Class.forName("com.mysql.jdbc.GoogleDriver");
url = "jdbc:google:mysql://project:instance/database?user=root";
log.info(url);
return DriverManager.getConnection(url);
This is part of my configuration file:
<application>app</application>
<module>mod</module>
<version>1</version>
<threadsafe>true</threadsafe>
<use-google-connector-j>true</use-google-connector-j>
I tried several suggestions from other posts, but with no success at all.
Any suggestion will be welcome, thanks in advance.
I was facing the same problem while using Google Cloud SQL and App engine.
I solved the problem by managing the connection pool my self. I realised that when you request a new connection for each request and close it on completion of the thread. The other requests would get back a null resulting to NullPointException.
I decided to do the following and it work for me for like 2 years now.
Open a connection and keep it to a static class that has a number of connections;
Every time i want to find a connection to the database, i would first check if the is an available connection for me to use.
Incase a Query killed the connection, thus means i needed to request another extra connection just to for the sack of connection drops.
I will add this as an answer, since it is not exactly what Chrispinus mentioned, although he gave me a good idea for teh solution.
I went deeper in the code and found that some of the methods were not closing the database connection. I had assumed all of them were doing that, but looking at each method, I found I was wrong.
So, although it sounds obvious, check connections are being closed (or managed, as Chrispinus says) properly.
I am afraid to ask this kind of question as it has many factors to consider and its not easy for others to give suggestions.
But, I have to do this task and couldnt trace out the possible way to do this. One requirement I know is with the help of AJAX controls and Update panel ( I never worked on them) I have to do this.
Please please some ideas and suggstions, of how to start and soem pinpoints to get there.
it will be an internal portal site and users can access the data from this website which I have uploaded to the database and download data using UI I have.
hoping some help on this.
Thank you,
Ramm
You will need 2 components
1. Excel VBA : for retrieving data from web service and sending data to web service
2. Web Service : for providing data to excel vba and receiving data from excel vba for saving to database
I currently working for a project with this kind of mechanism, which involved database as backend and excel as user interface.
Here's a simple example in PHP using MySQL - http://www.w3schools.com/PHP/php_ajax_database.asp
You're right. That's way too much for anyone to try to answer. But here are some links that should help:
Microsoft ASP.NET Ajax: http://www.asp.net/learn/ajax/
Db-driven ASP.NET App Tutorial: http://www.asp.net/learn/3.5-videos/video-363.aspx