<ul><li>To debug a process or troubleshoot authentication issues in PostgreSQL, the pre_auth_delay parameter can be used to add a delay before a session is authenticated.</li><li>By adding a delay, it allows you to identify the problematic session and attach strace to it for further investigation.</li><li>The pre_auth_delay parameter can be changed online, and an example of setting it to 10 seconds is provided.</li><li>In addition to pre_auth_delay, there is also post_auth_delay parameter available.</li></ul>

PostgreSQL: Delaying authentication to debug a process

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