This article will help you if you have seen MySQL error 3 hy000, error code 28.
Updated: ASR Pro
As stated above, error code 28 indicates that there is not enough space on the disk. Note that this is a web error message, not a client error. So make sure you are visiting the correct website. As many other people have pointed out, this may be due to a lack of free space on the device.
An overflow error occurred while running MySQL with 10 million records. Baidu struggled with the order for a long time and finally fixed the problem, this is a record.
Use up to
error 28 to view the cause of the current error: Operating system error code 28: Not enough space on left device. It turned out that the failed select statement was caused by insufficient space in the temporary directory. Why? It turns out that MySQL starts creating a temporary file when running SQL frequently. The size of this temporary file depends on the size of the SQL statement and the size of the desktop. Regardless of its size, you should keep an eye on the size of the item’s temporary folder as long as the SQL is working properly. I don’t know how much time I have for this! Solve the main problem first.
NideFind the eternal directory of files. Use the following command in MySQL mode:
Display variables as 'tmpdir'
df -hView /tmp if the disk only has 5 GB. So find a way to temporarily change part of the MySQL file directory. If no MySQL temp directory is specified, /tmp will be located oddly.
Use the following descriptor to change the MySQL temporary home directory:
set global tmpdir='/data/mysqltmp'
The file configuration looks like it needs some improvement. First, find the MySQL configuration entry and use the following command:
where is my.cnf
My path is
/etc/my is.cnf. Use vi to add any
tmpdir=/data/mysqltmp line. The change is shown in the figure below. The red box is the computer’s newly added temporary files directory.
After some modification we have used variables like ‘tmpdir’ of which
is rendered again and see where the change was successful.
But when I re-ran the SQL, I got the following error:
ERROR 1 (HY000): Failed to create/write file "/data/mysqltmp/MYGhGQGv" (error code: 13)
error 13The reasons for using the same mapping error are as follows: Operating system code error 13: Access denied. Turns out high unspecified is not a directory to create write permissions. Use the following influence to add write permissions:
chmod a+w /data/mysqltmp
Here the problem is solved, but in order not to be mistaken, let's use the MySQL engine. Restart command:
reset mysqld service
The problem is back! Failed to restart MySQL reports after my error:
Timeout error while trying to stop MySQL daemon.
killall -9 mysqld;restart mysqld service
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When using Matomo Analytics, if you get a clear message "General error: 3 errors writing file /tmp/xyz", then the storage space for the entire
/tmp section is full of . Problems occur in MySQL/MariaDB databaseProblems with creating new files in the
/tmp folder, but the time on the disk is full, so we recommend increasing the size of all sections of
/tmp (or another path specified in the
settings >tmpdir MySQL).
Once you have increased the DVD storage space in your tmp directory, your current Matomo page should be populated successfully.
In addition, you may also receive error messages such as "Backup Engine Error 28" indicating that one of the disks where MySQL data sources are stored is full. To improve and even fix this problem, check the partition that can be full and then allocate more space for this partition. For example, Linux can determine exactly which partition is full by executing the statement
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