[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
Hi Ryan, Yep, I read the upstream bug and understand the explanation. I was just surprised to see the bug fixed and I assumed it meant the error should go away completely. In my case the error happens from Postfix - Cyrus SASL - PAM - LDAP (all stock packages including stock LDAP client library). -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/594840/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
Still happen on Trusty # cat /etc/os-release NAME=Ubuntu VERSION=14.04, Trusty Tahr # dpkg -s slapd Source: openldap Version: 2.4.31-1+nmu2ubuntu8 # grep connection_read /var/log/syslog Jun 2 10:19:02 shell slapd[1590]: connection_read(29): no connection! Jun 2 13:07:06 shell slapd[1590]: connection_read(29): no connection! Jun 2 13:07:06 shell slapd[1590]: connection_read(29): no connection! Jun 2 13:10:11 shell slapd[1590]: connection_read(48): no connection! Jun 2 16:54:05 shell slapd[1590]: connection_read(24): no connection! Jun 2 17:12:05 shell slapd[1590]: connection_read(31): no connection! Jun 2 19:03:37 shell slapd[1590]: connection_read(27): no connection! -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/594840/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
Hi Aleksey, It's normal for slapd to emit that message if a client disconnects without unbinding. If you turn slapd's loglevel up a bit, say to stats, you should see enough information preceding that message to tell whether that's the case. If you see that message even though every client did an unbind before disconnecting, can you tell us some more about the conditions where you see it, or a way to reproduce? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/594840/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
Hi, as per the upstream changelog ITS#6548/#7092 were fixed upstream in 2.4.27, so Fix Released in precise and newer. thanks, Ryan ** Bug watch added: Debian Bug tracker #643970 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=643970 ** Changed in: openldap (Debian) Importance: Undecided = Unknown ** Changed in: openldap (Debian) Status: New = Unknown ** Changed in: openldap (Debian) Remote watch: None = Debian Bug tracker #643970 ** Changed in: openldap (Ubuntu) Status: Confirmed = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/594840/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
** Changed in: openldap (Debian) Status: Unknown = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/594840/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
** Also affects: openldap (Debian) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/594840/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
Some interesting comments left in the notes field at http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6548 : fixed in master fixed in RE24 So hopefully this means that a fix is pending - eventually? ** Description changed: Reported upstream at - http://www.openldap.org/its/index.cgi/Incoming?id=6548 , but it needs to - be re-opened there. + http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6548 , but it + needs to be re-opened there. Many connection_read(): no connection! warnings are written to /var/log/debug and /var/log/syslog by slapd. As stated at http://www.openldap.org/lists/openldap-software/200811/msg00079.html , this is apparently not a problem with slapd, but a client that is disconnecting without first unbinding. This appears to be an issue with the libldap client library provided by OpenLDAP itself (2.4.21), and not the slapd daemon. Issue is reproducible even by just using ldapsearch -H ldapi:///, but only if a bind DN is specified (-D) and external authentication is not used. Running slapd with logging enabled (-d 8) shows the attached 3 sequences - ldapsearch command followed by the slapd logs. Note that the connection_read(): no connection! is only visible on the middle pair. If this can't / won't be fixed in the client library, the logging of the connection_read(): no connection! event from slapd should at least be demoted to a lower level so that it doesn't fill the default logging output, without having to change the overall configured logging level and potentially missing other logged events that do require attention. Ubuntu 10.04, libldap-2.4-2 : 2.4.21-0ubuntu5 Also still confirmed in Ubuntu 11.10, libldap-2.4-2 : 2.4.25-1.1ubuntu4.1 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/594840/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
still occuring -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/594840/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
** Description changed: Reported upstream at http://www.openldap.org/its/index.cgi/Incoming?id=6548 , but it needs to be re-opened there. Many connection_read(): no connection! warnings are written to /var/log/debug and /var/log/syslog by slapd. As stated at http://www.openldap.org/lists/openldap-software/200811/msg00079.html , this is apparently not a problem with slapd, but a client that is disconnecting without first unbinding. This appears to be an issue with the libldap client library provided by OpenLDAP itself (2.4.21), and not the slapd daemon. Issue is reproducible even by just using ldapsearch -H ldapi:///, but only if a bind DN is specified (-D) and external authentication is not used. Running slapd with logging enabled (-d 8) shows the attached 3 sequences - ldapsearch command followed by the slapd logs. Note that the connection_read(): no connection! is only visible on the middle pair. If this can't / won't be fixed in the client library, the logging of the connection_read(): no connection! event from slapd should at least be demoted to a lower level so that it doesn't fill the default logging output, without having to change the overall configured logging level and potentially missing other logged events that do require attention. Ubuntu 10.04, libldap-2.4-2 : 2.4.21-0ubuntu5 + + Also still confirmed in Ubuntu 11.10, libldap-2.4-2 : + 2.4.25-1.1ubuntu4.1 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/594840/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
This affects not just logging, but it seems to affect search capability from some clients. For instance, my thunderbird addressbook fails occasionally. Simultaneously on the client error, I get these error messages on syslog: slapd[29694]: SASL [conn=1577] Failure: realm changed: authentication aborted slapd[29694]: connection_read(46): no connection! This is happening not all times with all users on my network (about 100 users). -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
I can reproduce this behavior by running ldapsearch -H ldapi:/// -Y EXTERNAL, too. This symptom can be shut off with the rsyslog rule, should be at the top of /etc/rsyslog.d/50-default.conf: --snip-- :msg, contains, : no connection ~ --snip-- -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in ubuntu. https://bugs.launchpad.net/bugs/594840 Title: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
** Changed in: openldap (Ubuntu) Importance: Undecided = Medium ** Changed in: openldap (Ubuntu) Status: New = Confirmed -- Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) https://bugs.launchpad.net/bugs/594840 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 594840] Re: Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication)
** Attachment added: LDAP Tests and Logs.txt http://launchpadlibrarian.net/50398131/LDAP%20Tests%20and%20Logs.txt -- Many connection_read(): no connection! warnings from OpenLDAP server when using ldapi:/// and a bind DN (no external authentication) https://bugs.launchpad.net/bugs/594840 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
