XAMPP - Error: MySQL shutdown unexpectedly

Question

I have reinstalled XAMPP for some reason and MySQL is not working, giving the following error in the console:

01:56:03  [mysql]   Error: MySQL shutdown unexpectedly. 01:56:03  [mysql]   This may be due to a blocked port, missing dependencies,  01:56:03  [mysql]   improper privileges, a crash, or a shutdown by another method. 01:56:03  [mysql]   Check the "/xampp/mysql/data/mysql_error.log" file 01:56:03  [mysql]   and the Windows Event Viewer for more clues 

When checking the "/xampp/mysql/data/mysql_error.log" file I get:

130302  1:48:06  InnoDB: Waiting for the background threads to start 130302  1:48:07 InnoDB: 1.1.8 started; log sequence number 1600324627 130302  1:48:07 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 130302  1:48:07 [Note]   - '0.0.0.0' resolves to '0.0.0.0'; 130302  1:48:07 [Note] Server socket created on IP: '0.0.0.0'. 130302  1:51:12 [Note] Plugin 'FEDERATED' is disabled. 130302  1:51:12 InnoDB: The InnoDB memory heap is disabled 130302  1:51:12 InnoDB: Mutexes and rw_locks use Windows interlocked functions 130302  1:51:12 InnoDB: Compressed tables use zlib 1.2.3 130302  1:51:12 InnoDB: Initializing buffer pool, size = 16.0M 130302  1:51:12 InnoDB: Completed initialization of buffer pool 130302  1:51:12 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 130302  1:51:12  InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 130302  1:51:13  InnoDB: Waiting for the background threads to start 130302  1:51:14 InnoDB: 1.1.8 started; log sequence number 1600324627 130302  1:51:14 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 130302  1:51:14 [Note]   - '0.0.0.0' resolves to '0.0.0.0'; 130302  1:51:14 [Note] Server socket created on IP: '0.0.0.0'. 130302  1:56:01 [Note] Plugin 'FEDERATED' is disabled. 130302  1:56:01 InnoDB: The InnoDB memory heap is disabled 130302  1:56:01 InnoDB: Mutexes and rw_locks use Windows interlocked functions 130302  1:56:01 InnoDB: Compressed tables use zlib 1.2.3 130302  1:56:01 InnoDB: Initializing buffer pool, size = 16.0M 130302  1:56:01 InnoDB: Completed initialization of buffer pool 130302  1:56:01 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 130302  1:56:01  InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 130302  1:56:02  InnoDB: Waiting for the background threads to start 130302  1:56:03 InnoDB: 1.1.8 started; log sequence number 1600324627 130302  1:56:03 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 130302  1:56:03 [Note]   - '0.0.0.0' resolves to '0.0.0.0'; 130302  1:56:03 [Note] Server socket created on IP: '0.0.0.0'. 

That is just a part of the log, the full one is a bit too big.

Help?

Answer 1

Make sure you backup the mentioned folders before taking any action!

This worked for me,

1. Quit the XAMPP
2. Cut all files in C:\xampp\mysql\backup
3. Paste and replace files into C:\xampp\mysql\data
4. Run the XAMPP as administrator