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  1. Jenkins
  2. JENKINS-65540

UsernameNotFoundException in LDAP Plugin with multiple AD Server

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Critical Critical
    • ldap-plugin
    • Jenkins (container) 2.281
      LDAP Plugin 2.6

      I use LDAP plugin to authentication, and there are two target AD Server.
      Everything works fine, but recently I started seeing the logs section full of this error:

      Failed communication with ldap server 6cOWbB57Lhug+DHcZ2de3w== (<<DNS name of the first server>>)
      org.springframework.security.core.userdetails.UsernameNotFoundException: User <<myuser>> not found in directory.

      To give full context : <<myuser>> is present in second AD server and not in the first one, but there are other user in same condition for which this error doesn't happen. I also noticed that this logs is generated even when I'm not logged in with <<myuser>> (but it always refers <<myuser>>). I can provide the full stack trace if necessary.

          [JENKINS-65540] UsernameNotFoundException in LDAP Plugin with multiple AD Server

          Gabriele created issue -
          Zdenek made changes -
          Priority Original: Minor [ 4 ] New: Critical [ 2 ]

          Dominik Vorreiter added a comment -

          Same here. Every minute an exception with stacktrace is thrown. This spams our log! Is there any workaround? Thanks!

          This is the (shortened!) log entry:

          2025-01-03 12:05:16.552+0000 [id=12915] WARNING h.s.LDAPSecurityRealm$DelegateLDAPUserDetailsService#loadUserByUsername: Failed communication with ldap server 1oytZZjBC63KKB7eWOTDjQ== (10.1.10.251)
org.springframework.security.core.userdetails.UsernameNotFoundException: User monitor not found in directory.
        at PluginClassLoader for ldap//org.springframework.security.ldap.search.FilterBasedLdapUserSearch.searchForUser(FilterBasedLdapUserSearch.java:107)
        at PluginClassLoader for ldap//hudson.security.LDAPSecurityRealm$LDAPUserDetailsService.loadUserByUsername(LDAPSecurityRealm.java:1298)
        at PluginClassLoader for ldap//hudson.security.LDAPSecurityRealm$DelegateLDAPUserDetailsService.loadUserByUsername(LDAPSecurityRealm.java:1220)
        at PluginClassLoader for ldap//hudson.security.LDAPSecurityRealm$LDAPAuthenticationManager.authenticate(LDAPSecurityRealm.java:1009)

... + 56 more lines

          Dominik Vorreiter added a comment - Same here. Every minute an exception with stacktrace is thrown. This spams our log! Is there any workaround? Thanks! This is the (shortened!) log entry: 2025-01-03 12:05:16.552+0000 [id=12915] WARNING h.s.LDAPSecurityRealm$DelegateLDAPUserDetailsService#loadUserByUsername: Failed communication with ldap server 1oytZZjBC63KKB7eWOTDjQ== (10.1.10.251) org.springframework.security.core.userdetails.UsernameNotFoundException: User monitor not found in directory.         at PluginClassLoader for ldap //org.springframework.security.ldap.search.FilterBasedLdapUserSearch.searchForUser(FilterBasedLdapUserSearch.java:107)         at PluginClassLoader for ldap //hudson.security.LDAPSecurityRealm$LDAPUserDetailsService.loadUserByUsername(LDAPSecurityRealm.java:1298)         at PluginClassLoader for ldap //hudson.security.LDAPSecurityRealm$DelegateLDAPUserDetailsService.loadUserByUsername(LDAPSecurityRealm.java:1220)         at PluginClassLoader for ldap //hudson.security.LDAPSecurityRealm$LDAPAuthenticationManager.authenticate(LDAPSecurityRealm.java:1009) ... + 56 more lines

            Unassigned Unassigned
            ollaw Gabriele
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              Created:
              Updated: