Thread: Reduce the time to know trigger_fi​le's existence

Reduce the time to know trigger_fi​le's existence

From
Harshitha S
Date:

Hi, 

 
We are trying to introduce a thread that monitors the creation of the trigger_file. As and when the file is created, the process that monitors postgres server needs to be notified through the inotify API.

This is to reduce the 3-4 seconds delay that exists with the current implementation in postgres. As per the current implementation, the thread checks for the existence of the file every 5 seconds. If the file got created just 1 second after the sleep, there is a wait time of 4 seconds before we know whether the file is present or not. We intend to avoid this delay by using inotify().

PostgreSQL version number you are running: postgres 9.1.5

How you installed PostgreSQL: Downloaded and compiled the sources

 
Does anyone have suggestions on the appropriate place to add inotify_add_watch to achieve our objective?
Thanks in advance.