Mysql drop database hangs

Dropping table makes MySQL hang. When I try to drop a table, MySQL hangs. I got to this question by searching mysql alter table hanging and think the answer (in the comments) should be documented.

DELETE in MyISAM triggers a full table lock. Even if you use LOW_PRIORITY INSERTs or INSERT DELAYE full table. It is free and works well straight out of the box.

I am dropping unused databases every day. We intentionally crash the server because it appears to be hung. The thread itself is using 1 of one of the CPU cores. It seems to be related to the INORMATION_SCHEMA and so any other query from other user on the DBMS hangs. How to Delete a MySQL Database.

In order to delete a MySQL database , you must have access to an account with delete privileges, such as the root. Learn more on the SQLServerCentral forums. I did this on my own dev database (I did the test on my own after the live server produced the same error) How. So the table name is reset to an empty string.

I have a problem with a MySql server causing it to freeze all the time. In phpMyAdmin when this happens I can see in Show Processlist are lots of processes for User unauthenticated user with Co. Re: Database hangs during large inserts or load data infile on innodb table. CREATE INDEX, DROP INDEX, and ALTER.

We have a mysql database with a size of TB, in which we have for to five big tables ranging from 110GB to 350GB. When we try to drop these tables the mysql goes to the defunct mode and hangs in that state for a long time. In this article, we will show you how to delete a mysql database on Linux via the command line. We will review the requirements, how to drop a database , and view all databases when complete.

I have discussed TRUNCATE TABLE in my past posts. I am not sure if this is the same bug that I am experiencing but it seems so. Drop a Database using mysqladmin. DROP TABLE has been improved in MySQL 5. You would need special privileges to create or to delete a MySQL database. So, assuming you have access to the root user, you can create any database using the mysql mysqladmin binary.

Be careful while deleting any database because you will lose your all the data available in your database. The tables have around 20entries each. Confirm that you want to drop the. To make a long story short: The database hangs after the underlying JDBC controller (in my case mysql -connector-java-.5) throws an exception.

For instance, if I try to update a record violating an unique constrain, Mysql will throw and exception that get’s propagated to my application… wonderful. GitHub is home to over million developers working together to host and review code, manage projects, and build software together. The database is using InnoDB but I also use one table running MyISAM to be able to perform full text search. The server has about 4GB memory, less than 1GB in use.

I have been using the slow Query Log from MySql to find the queries not using indexes. Okay, I got DROP DATABASE to work. Summary: in this tutorial, you will learn how to use the MySQL DROP USER statement to remove one or more user accounts from the database. Introduction to MySQL DROP USER statement.

DB you want to drop ) you should not see any processes except the grep you just issued – contact a DBA if there are any running processes with the database name.