Drop database in TDengine - database

I'm using TDengine. I created a database named iot_data.
When I tried to drop this database:
drop database iot_data;
there is an error:
DB error: Out of memory in rpc queue
I cannot tell what the reason is.
I google 'tdengine Out of memory in rpc queue', and get nothing helped.

This is definitely a bug. You can post more details about your testing here or on GitHub TDengine site, so TDengine team or contributors can take a look.

Related

Error in consulting All Websites in the Matomo [fechada]

I’m configure matomo server in AWS cloud with server of 4 nucleos and 16GB RAM. The database is in RDS da AWS. But when I go to all websites and select data renge, I get the folloing error message: “Oops… there was a problem during the request.” I set all recommended settings. The other options in AllWebsites return the reports.
It sounds like there is an error on the Matomo servers and that the PHP process is failing with an error.
-> Can you please get the team to check your Web server error.log for the actual error message(s) logged by the server?
Once we see the error messages we will likely be able to understand where the problem is, and help provide a solution.

Trouble at starting PostgreSQL instance

The POSTGRE SQL database associated with our AppEngine project does not start giving "An unknown error occurred". The first error of this kind is reported this morning, 22.05.2019 at 7:31 Spain time, and later trials on Starting the database have equally failed with the same "unknown error" message.
Is it possible that this is related to issue 19002 reported yesterday?
https://status.cloud.google.com/incident/cloud-sql/19002
We need your help to see what is happening and start the database as soon as possible. Thanks
It is possible that this Google Cloud SQL Incident #19002, cause a lot errors between this stage.
Cloud SQL provides the ability to replicate a master instance to one or more read replicas:
https://cloud.google.com/sql/docs/postgres/replication/create-replica

SymmetricDS missing its node_identity

I use symmetricds 3.8.0 to sync data between Oracle 12.1 and Mysql 5.5. Oracle is the Master Server. I use the demo properties to configure with modifying its db connection information.But when I execute command : bin/sym, there show the message below:
This node is configured as a registration server, but it is missing its node_identity. It probably needs configured
It only occur when the master server is Oracle, nothing with Mysql and Mssql, I try it many times but it still show this issue, Do someone meet this problem and help me?
sym_node_identity table has to be populated with one row describing the identity of the root DB on oracle

Database is not created after publishing on Windows Azure

Actually, I'm working on a basic ERP for a very small business. I'm using ASP.Net MVC 4 Code First and I use Windows Azure as web hoster. All is working fine on my local computer, and deployement is done without issues : website is reachable. However, my application crash whenever a database access is required, with a "very descriptive" error : "Error. An error occurred while processing the request.". There are no clue or detailled error in logs file about this error.
After digging during two days, I've understood that my database is not initialized : all tables are created, but columns aren't set. Because tables are created, I doubt it's a connection string error, but a migrations one. All tries (though Initializer class) I have done to force a database reinitialisation failed.
I searched a while on the Internet, but I saw no one having the same issue than me.
Is trhere someone who have already encoutered this case, and is there a solution to fix it ? Thanks for your answers.
PS: Sorry for english mistakes, it's not my mothertongue :)
If the database you are using is sql than you should use
SQL Database Migration Wizard for deploying on-premises sql database to windows azure. This will do the job perfectly and effortlessly.

Database Server Disk Memory is Full

I am using SQL Server for my web application. How will I know that an insert query failed because the database server memory disk is already full
The error code you will get back will indicate that the disk is full: 1105 (primary filegroup full) or 9902 (log file full)
You can simulate this by disabling the auto-grow feature on the database (It's a checkbox in the database properties on the file tab) and filling up the database. The error will be the same.
ALTER DATABASE YourDatabase
MODIFY FILE (name='YourFile' MAXSIZE=50MB);
if you want to find you memory usage
exec sp_spaceused
This will give you how much memory you are used for particular database
Check the error code you get back from SQL Server when you try to insert into the database.
With that error given back you can then decide what to do. (e.g. Try to insert again,
Try to free up some memory on the server) Also if you havent already, place your Insert statement inside a Transaction so that you can rollback if an error occurs.
I suppose you can believe that if the disk is full the SQL server will return the error code :).
You can make your testing code think it is communicating with the SQL server but instead it will talk to some fake object of yours that will respond with the error codes you want to test.
There are frameworks that can help you. One of them is Rhino Mocks you can download from http://ayende.com

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