-
Notifications
You must be signed in to change notification settings - Fork 1.7k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
MDEV-11520 Extending an InnoDB data file unnecessarily allocates
a large memory buffer on Windows fil_extend_space_to_desired_size(), os_file_set_size(): Use calloc() for memory allocation, and handle failures. Properly check the return status of posix_fallocate(). On Windows, instead of extending the file by at most 1 megabyte at a time, write a zero-filled page at the end of the file. According to the Microsoft blog post https://blogs.msdn.microsoft.com/oldnewthing/20110922-00/?p=9573 this will physically extend the file by writing zero bytes. (InnoDB never uses DeviceIoControl() to set the file sparse.) For innodb_plugin, port the XtraDB fix for MySQL Bug#56433 (introducing fil_system->file_extend_mutex). The bug was fixed differently in MySQL 5.6 (and MariaDB Server 10.0).
- Loading branch information
Showing
5 changed files
with
162 additions
and
166 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.