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Error: MySQL shutdown unexpectedly xampp 3.2.4

When I open XAMPP (xampp v3.2.4 in windows 10) and click start MySQL button and it gives me an error. I had started it just before, but now it isn't working.

error:

12:50:26 PM  [mysql]    Status change detected: stopped
12:50:26 PM  [mysql]    Error: MySQL shutdown unexpectedly.
12:50:26 PM  [mysql]    This may be due to a blocked port, missing dependencies, 
12:50:26 PM  [mysql]    improper privileges, a crash, or a shutdown by another method.
12:50:26 PM  [mysql]    Press the Logs button to view error logs and check
12:50:26 PM  [mysql]    the Windows Event Viewer for more clues
12:50:26 PM  [mysql]    If you need more help, copy and post this
12:50:26 PM  [mysql]    entire log window on the forums

so, I check log:

InnoDB: using atomic writes.
2020-08-01 12:50:25 0 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2020-08-01 12:50:25 0 [Note] InnoDB: Uses event mutexes
2020-08-01 12:50:25 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2020-08-01 12:50:25 0 [Note] InnoDB: Number of pools: 1
2020-08-01 12:50:25 0 [Note] InnoDB: Using SSE2 crc32 instructions
2020-08-01 12:50:25 0 [Note] InnoDB: Initializing buffer pool, total size = 16M, instances = 1, chunk size = 16M
2020-08-01 12:50:25 0 [Note] InnoDB: Completed initialization of buffer pool
2020-08-01 12:50:25 0 [Note] InnoDB: 128 out of 128 rollback segments are active.
2020-08-01 12:50:25 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2020-08-01 12:50:25 0 [Note] InnoDB: Setting file 'C:\xampp\mysql\data\ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2020-08-01 12:50:25 0 [Note] InnoDB: File 'C:\xampp\mysql\data\ibtmp1' size is now 12 MB.
2020-08-01 12:50:25 0 [Note] InnoDB: Waiting for purge to start
2020-08-01 12:50:25 0 [Note] InnoDB: 10.4.11 started; log sequence number 51764883; transaction id 105083
2020-08-01 12:50:25 0 [Note] InnoDB: Loading buffer pool(s) from C:\xampp\mysql\data\ib_buffer_pool
2020-08-01 12:50:25 0 [Note] Plugin 'FEEDBACK' is disabled.
2020-08-01 12:50:25 0 [Note] Server socket created on IP: '::'.

how do fix this error?

over 4 years ago · Santiago Trujillo

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Answer 1 · 2022-05-11T21:55:08.848Z

I fixed using this article:

Rename the “data” folder

Rename the “data” folder to “data-oldfiles”.
This is very important to rename the data directory to any new directory name.

Create a new “data” folder

Create a new folder and give the folder name as “data“
To solve the problem we need to create a new “data” directory in the mysql database.

Copy content from “backup” folder

Go to the “backup” folder and copy all files.
Paste the files from backup folder to data folder
Now start the MySQL database from XAMPP.
Now, your MySQL database will start properly without showing any error.

Transfer all MySQL projects Database, Data file & Log files

If you have many database which was used for various projects, then you have to transfer all database from “data-oldfiles” folder to “data” folder.
Copy all databases from the data-old files and paste to the data folder.
Now you have to copy the data file “ibdata1” & all log files “ib_logfile0, ib_logfile1 ” from data-old files folder to the data folder. If you have many id_logiles then copied all of them.

Answer 2 · 2022-05-11T21:55:08.868Z

you can end task mysqld.exe or mysqld on task manager. Then run again MySql. It will work. (On Off Engineering).

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Error: MySQL shutdown unexpectedly xampp 3.2.4

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