无法在php fork中启动mysql事务

Question

I have problem when start mysql transaction in child process with php pcntl_fork. The error message is:

PDO::beginTransaction(): send of 22 bytes failed with errno=32 Broken pipe

How to start transaction in child process with pcntl_fork

Thank you

Answer 1

If someone is struggling with this issue, here is the fix:

Try changing/setting up wait_timeout in your mysql my.cnf config file:

wait_timeout=3600

This config file is located in the /etc/mysql/my.cnf (Ubuntu/Debian) and /usr/local/mysql/my.cnf (OSX).

Restart mysql server and it should work.