This is an old enough bug while using MySQL version 5.5 with Ubuntu 14.04.
According to these issues form docker or moby repository:
https://github.com/docker/for-linux/issues/72https://github.com/moby/moby/issues/35503
overlayfs only supports a subset of the POSIX standard.
But the problem does not arise when using aufs.
We do a little trick to MAKE MYSQL GREAT AGAIN.
NOTICE: Only people who are using docker may face this problem.
If you are using a bare-metal system or just running a virtual machine,
executing the installation script without using container works fine.
When logout by clicking logout button on the top of /user/modify-profile link, you will be redirected to the login page.
But if you login immediately then you will get the login page again and loop.
It is caused by an address checking error. Now try to fix.
The compilers are all updated in Ubuntu 18.04 basesystem.
Add some defines for judger on compiling and replace web's display version to the real version.
To support new compilers we must modify the syscall list to let them run properly, otherwise they will error with "Dangerous Syscalls".
The Oracle JDK8 will read usagetracker profiles and record usage infomation, so disable it in order to not making junk files which may cause DGS.
Due to historic reasons, the version and path of compilers are specified.
This will remove these specifications to make judger more adaptable.
Also provide defines to specify new version and keep for default.
Update base system to Ubuntu 18.04.
.htaccess file's session path changed correctly.
Add gnupg install choice, due to base system has no gpg support.
Set DEBIAN_FRONTEND to noninteractive in order to prevent tzdata stuck.
Change Dockerfile's verion and buanch checkout method, in order to save space.
Fix mysql conf when not restart service and the database can't import judger info.
Change install.sh, support PHP7.2, update libv8 repo to artful, with missing php-mbstring.
The old JDK distfile mirrors are deprecated, changed to official.sed modded to get the latest jdk8.
BREAKING CHANGE: Ubuntu 14/16 users shouln't execute this script, due to config files and packages not the same.
In order to support PHP7 and Ubuntu 16.04, there must be some changes to make it runs properly.
The install script added php7 and mysql 5.7, newer v8js packages and supports, adjusted some config files.
Also used new way to detect install args, and change tab to 4-char-long space char.
BREAKING CHANGE: This branch can only be used for PHP7, and Ubuntu 14.04 users shouln't execute this script.
The last commit changed the installation script a lot, but made some mistakes on the genration of config.
It gens the $_svn_ourroot_password_ to $_svn_certroot_password_. Just fix it.
According to the version from @vfleaking, the judger_socket password and the our-root password is 32 chars long. Strengthen it.
There is also a *** space char on the end of a line. Kick it out.
Change the base Docker image to ubuntu16.04 and change the LAMP
packages to support PHP7.
BREAKING CHANGE: the packages which will be installed has changed.
In order to support PHP7, change the way to operate database. PHP7
removed the mysql extension, so the old way to operate database is
not usable. This commit use a new way to operate database.
BREAKING CHANGE: the way to operate database has changed.
