Thank you!Another way is by accessing the database and emptying this table with this order:
TRUNCATE `ow_base_user_online`;This will invalidate all cookies and they will have to re-login.
And for you who are testing why it takes so long to load the page, they will all appear disconnected.
There are plugins that just start generating a list of your friends online, (such as the message) and so have less work.
From your website I have only seen the cover, but I think you promote a lot that there are friendships.
It would be interesting to see the relation of users (elements in the ow_base_user table) and the number of friendships (elements of the ow_friends_friendship table). Think that if you have 10 members who each have 10 friends, you have 100 friendly relationships. Similarly, 2500 x 2500 = 6,250,000. Think about it. Also the accepted, pending and eliminated petitions are also elements of ow_friends_friendship.
I have found several flaws in the friends plugin and I am working on a new version. As in the OxWall store I do not sell anything, I do not have much interest in publishing new plugins ... I'm doing it but without hurry. This friends I will propose on GitHub as "official". Maybe they will give me a leader tag or something in my nickname ... I would be excited.