[389-users] Re: Inconsistent Ldap connection issues

Ah yes of course. Here is 1 run of their web app load test, it is 6 minutes long, and it should mostly be only the test it self. I will start looking for 

We encountered 2 "Can not contact ldap server" errors during this run. 

2 cant contact ldap server errors in this run below.

These errors are only shown on the client, yes? Is there any evidence of a failed connection in the access log? 

After the run I bumped up these from 4096, 

net.ipv4.tcp_max_syn_backlog = 6144
net.core.somaxconn = 6144

Yet we still get the ldap errors (this one and the start tls request error previously mentioned.)

Should I bump up the nsslapd-listen-backlog-size, net.ipv4.tcp_max_syn_backlog, net.core.somaxconn more ?

We encountered a similar issue recently with another load test, where the load tester wasn't averaging it's connections, it would launch 10,000 connections at once and hope they all worked. With your load test, is it actually spreading it's connections out, or is it bursting?

-- 
Sincerely,

William Brown

Senior Software Engineer,
Identity and Access Management
SUSE Labs, Australia