[OPEN-ILS-DEV] ldirectord and pound proxy

[Blake Henderson]

Hey all,

We have been using ldirectord for a couple of years. We tested pound 
proxy and found some advantages. The main advantage that we found is the 
client request balance. ldirectord creates a session from the client to 
one app server. Once that sessions is created, the SSL and subsequent 
traffic will always go to that same app server. Pound proxy, on the 
other hand,  handles the SSL connection on the front end and 
communicates with the app servers without SSL (port 80). This is an 
advantage because a single app server can fall off the network and no 
body would know about it.

So we put pound proxy into production. 8 hours after putting pound proxy 
into production, all of our app servers were moving very very slowly. 
After looking at the process trees, we found that apache was eating all 
of the cores. The average usage was over 50!! On 2 of our app servers, 
it was over 100! Weird!

We had to put ldirectord back into production. So finally, my question:

Has anyone else seen this? Do I need to tweak the apache settings on the 
app servers when using pound proxy for some reason? Do I need to setup 
pound proxy to throttle the requests somehow?

-- 
-Blake-
Conducting Magic
MOBIUS
573-234-4513
877-312-3517