FreeRadius hanging for 5 secs at 2% of auth requests.

[Mircea Harapu]

> I have compiled FreeRadius 1.1.3 to work with OpenLDAP 2.2.23 on 
> Fedora Core 4 .
> At 2% of auth requests freeradius is hanging for 5 secs , discarding 
> duplicate requests and ignoring other requests.
> In debug mode it hangs at this line :
>
> rlm_ldap: - authenticate
> rlm_ldap: login attempt by "user" with password "xxxxx"
> rlm_ldap: user DN: cn=user,ou=People,dc=company,dc=ro
> rlm_ldap: (re)connect to ldap.company.ro:389, authentication 1
> rlm_ldap: setting TLS CACert Directory to /var/openldap/cert/
> rlm_ldap: bind as cn=user,ou=People,dc=company,dc=ro/xxxxx to 
> ldap.company.ro:389   <----
I figured out that it was a DNS problem because of using hostname for LDAP .
> after 5 secs it continues and replies without any problem.
>
> rlm_ldap: waiting for bind result ...
> rlm_ldap: Bind was successful
> rlm_ldap: user user authenticated succesfully
>
> In this period any query to LDAP is working perfect.
>
> On a second machine with the same configuration this things doesn't 
> happen .
> But when I have more than 20 requests per second freeradius is crashing.
>
Still got no clue for crashing at more than 20 requests per second

-- 
Mircea Harapu
Abuse Engineer
Bucharest NOC
RCS & RDS SA
mircea.harapu at rcs-rds.ro
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