rlm_ldap (ldap): 0 of 3 connections in use

[Marko Mernik]

Hi!

My server logs some strange things. What could be the problem? The 
radius server is working Ok

Tue Jan 19 11:50:16 2016 : Warning: rlm_ldap (ldap): You probably need 
to lower "min"
Tue Jan 19 11:50:18 2016 : Info: rlm_ldap (ldap): 0 of 3 connections in 
use.  Need more spares
Tue Jan 19 11:50:18 2016 : Info: rlm_ldap (ldap): Opening additional 
connection (83)
Tue Jan 19 11:50:20 2016 : Info: rlm_ldap (ldap): 0 of 4 connections in 
use.  Need more spares
Tue Jan 19 11:50:20 2016 : Info: rlm_ldap (ldap): Opening additional 
connection (84)
Tue Jan 19 11:50:20 2016 : Warning: rlm_ldap (ldap): You probably need 
to lower "min"
Tue Jan 19 11:50:29 2016 : Info: rlm_ldap (ldap): 0 of 4 connections in 
use.  Need more spares
Tue Jan 19 11:50:29 2016 : Info: rlm_ldap (ldap): Opening additional 
connection (85)
Tue Jan 19 11:50:29 2016 : Warning: rlm_ldap (ldap): You probably need 
to lower "min"
Tue Jan 19 11:50:31 2016 : Info: rlm_ldap (ldap): 0 of 4 connections in 
use.  Need more spares
Tue Jan 19 11:50:31 2016 : Info: rlm_ldap (ldap): Opening additional 
connection (86)
Tue Jan 19 11:50:42 2016 : Warning: rlm_ldap (ldap): You probably need 
to lower "min"
Tue Jan 19 11:50:44 2016 : Info: rlm_ldap (ldap): 0 of 4 connections in 
use.  Need more spares
Tue Jan 19 11:50:44 2016 : Info: rlm_ldap (ldap): Opening additional 
connection (87)
Tue Jan 19 11:51:26 2016 : Warning: rlm_ldap (ldap): You probably need 
to lower "min"
Tue Jan 19 11:51:34 2016 : Info: rlm_ldap (ldap): 0 of 4 connections in 
use.  Need more spares
Tue Jan 19 11:51:34 2016 : Info: rlm_ldap (ldap): Opening additional 
connection (88)

My config file:

ldap {
         server = "172.17.0.232 172.17.0.27"
         identity = "cn=Manager,dc=example,dc=local"
         password = xxxxxxxxxxx
         base_dn = "dc=example,dc=local"
         valuepair_attribute = "radiusAttribute"
         update {
                 control:Password-With-Header    += 'userPassword'
         }
         user {
                 base_dn = "${..base_dn}"
                 filter = "(uid=%{%{Stripped-User-Name}:-%{User-Name}})"
         }
         group {
                 base_dn = "${..base_dn}"
                 filter = "(objectClass=posixGroup)"
                 membership_attribute = "memberOf"
         }
         profile {
         }
         client {
                 base_dn = "${..base_dn}"
                 filter = '(objectClass=frClient)'
                 attribute {
                         identifier                      = 
'radiusClientIdentifier'
                         secret                          = 
'radiusClientSecret'
                 }
         }
         accounting {
                 reference = "%{tolower:type.%{Acct-Status-Type}}"
                 type {
                         start {
                                 update {
                                         description := "Online at %S"
                                 }
                         }
                         interim-update {
                                 update {
                                         description := "Last seen at %S"
                                 }
                         }
                         stop {
                                 update {
                                         description := "Offline at %S"
                                 }
                         }
                 }
         }
         post-auth {
                 update {
                         description := "Authenticated at %S"
                 }
         }
         options {
                 chase_referrals = yes
                 rebind = yes
                 timeout = 4
                 timelimit = 3
                 net_timeout = 1
                 idle = 60
                 probes = 3
                 interval = 3
                 ldap_debug = 0x0028
         }
         tls {
         }
         pool {
                 start = 15
                 min = 5
                 max = ${thread[pool].max_servers}
                 spare = 10
                 uses = 10
                 lifetime = 120
                 idle_timeout = 120
         }
}

Thank you for response.