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    Statement regarding the closure of the Kopano community forum and the end of the community edition

    [Fixed] Critical bug core-8.4.0~273: Dagent not delivering mails if plugin-manager is enabled.

    Kopano Groupware Core
    dagent plugin-manager bug python
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    • umgfoin
      umgfoin last edited by umgfoin

      Since core-8.4.0~273_56.1, dagent is no longer delivering mail, if plugin-manager is enabled.

      maillog:

      Apr 12 10:32:03 38162 postfix/pipe[16743]: D02725405E0: to=<hias@aegaeon.de>, relay=kopano, delay=383, delays=382/0.14/0/0.11, dsn=4.3.0, status=deferred (temporary failure)
      

      dagent.log:

      K-1732: Unable to initialize the dagent plugin manager: Unknown error code (1)
      Python error: 'module' object has no attribute 'DAgentPluginmanager'
      

      As of current, disabling the plugin-manager in dagent.cfg is a working solution.

      CentOS 6.9
      Python 2.6
      kopano-dagent 8,4,0,287

      ++umgfoin.

      fbartels 1 Reply Last reply Reply Quote 0
      • fbartels
        fbartels Kopano @umgfoin last edited by

        @umgfoin do you have any plugins enabled that could cause the failure?

        Regards Felix

        Resources:
        https://kopano.com/blog/how-to-get-kopano/
        https://documentation.kopano.io/
        https://kb.kopano.io/

        Support overview:
        https://kopano.com/support/

        1 Reply Last reply Reply Quote 0
        • umgfoin
          umgfoin last edited by

          Hi Felix,
          no, plugin-path is empty.

          plugin_manager_path = /usr/share/kopano-dagent/python
          plugin_path = /var/lib/kopano/dagent/plugins

          [tadao@ando kopano]# ls /var/lib/kopano/dagent/plugins
          insgesamt 0
          
          [tadao@ando kopano]# ls /usr/share/kopano-dagent/python/
          insgesamt 100K
          drwxr-xr-x 2 root root 4,0K 12. Apr 10:08 plugins
          -rw-r--r-- 1 root root 1,8K 12. Apr 02:58 mapiplugin.py
          -rw-r--r-- 1 root root 5,0K 12. Apr 02:58 pluginmanager.py
          -rw-r--r-- 1 root root 1,5K 12. Apr 02:58 plugintemplates.py
          -rw-r--r-- 1 root root  539 12. Apr 02:58 wraplogger.py
          -rw-r--r-- 1 root root 1,8K 12. Apr 02:58 zconfig.py
          -rw-r--r-- 1 root root 1002 12. Apr 02:58 zinterval.py
          -rw-r--r-- 1 root root 1,6K 12. Apr 02:58 zunit.py
          -rw-r--r-- 2 root root 2,7K 12. Apr 02:58 mapiplugin.pyc
          -rw-r--r-- 2 root root 4,2K 12. Apr 02:58 pluginmanager.pyc
          -rw-r--r-- 2 root root 2,8K 12. Apr 02:58 plugintemplates.pyc
          -rw-r--r-- 2 root root 1,8K 12. Apr 02:58 wraplogger.pyc
          -rw-r--r-- 2 root root 2,7K 12. Apr 02:58 zconfig.pyc
          -rw-r--r-- 2 root root 1,5K 12. Apr 02:58 zinterval.pyc
          -rw-r--r-- 2 root root 2,0K 12. Apr 02:58 zunit.pyc
          -rw-r--r-- 2 root root 2,7K 12. Apr 02:58 mapiplugin.pyo
          -rw-r--r-- 2 root root 4,2K 12. Apr 02:58 pluginmanager.pyo
          -rw-r--r-- 2 root root 2,8K 12. Apr 02:58 plugintemplates.pyo
          -rw-r--r-- 2 root root 1,8K 12. Apr 02:58 wraplogger.pyo
          -rw-r--r-- 2 root root 2,7K 12. Apr 02:58 zconfig.pyo
          -rw-r--r-- 2 root root 1,5K 12. Apr 02:58 zinterval.pyo
          -rw-r--r-- 2 root root 2,0K 12. Apr 02:58 zunit.pyo
          
          [tadao@ando kopano]# ls /usr/share/kopano-dagent/python/plugins/
          insgesamt 44K
          -rw-r--r-- 1 root root  571 12. Apr 02:58 movetopublic.cfg
          -rw-r--r-- 1 root root 4,2K 12. Apr 02:58 BMP2PNG.py
          -rw-r--r-- 1 root root 1,3K 12. Apr 02:58 examplerules.py
          -rw-r--r-- 1 root root 3,5K 12. Apr 02:58 movetopublic.py
          -rw-r--r-- 2 root root 4,0K 12. Apr 02:58 BMP2PNG.pyc
          -rw-r--r-- 2 root root 1,6K 12. Apr 02:58 examplerules.pyc
          -rw-r--r-- 2 root root 3,6K 12. Apr 02:58 movetopublic.pyc
          -rw-r--r-- 2 root root 4,0K 12. Apr 02:58 BMP2PNG.pyo
          -rw-r--r-- 2 root root 1,6K 12. Apr 02:58 examplerules.pyo
          -rw-r--r-- 2 root root 3,6K 12. Apr 02:58 movetopublic.pyo
          
          
          1 Reply Last reply Reply Quote 0
          • fbartels
            fbartels Kopano last edited by

            I tried reproducing this on a CentOS 6.9 machine with 8,4,0,301 and only get:

            Thu Apr 13 03:34:30 2017: [warning] [11432] ! Plugins directory '/var/lib/kopano/dagent/plugins' doesn't exists.Plugins not loaded.
            

            After creating this folder there is no further error message in the logs (mail delivery was successful before and after). I have created https://jira.kopano.io/browse/KC-631 to fix the packages.

            Regards Felix

            Resources:
            https://kopano.com/blog/how-to-get-kopano/
            https://documentation.kopano.io/
            https://kb.kopano.io/

            Support overview:
            https://kopano.com/support/

            1 Reply Last reply Reply Quote 0
            • umgfoin
              umgfoin last edited by

              Hi Felix,
              here the problem persists (updated to 8,4,0,301): As soon as I enable plugins in dagent, mail delivery is discontinued and the following error-messages appear with every unqueue attempt from postfix.

              
              Thu Apr 13 10:11:34 2017: [ notice] [22737] LMTP service will now exit
              Thu Apr 13 10:11:34 2017: [ notice] [23798] Starting kopano-dagent LMTP mode version 8,4,0,301 (301), pid 23798
              Thu Apr 13 10:13:25 2017: [ notice] [23798] LMTP service will now exit
              Thu Apr 13 10:13:25 2017: [info   ] Maximum LMTP threads set to 20
              Thu Apr 13 10:13:25 2017: [info   ] Listening on port 2003 for LMTP
              Thu Apr 13 10:13:25 2017: [info   ] [23994] Logger process started on pid 23996
              Thu Apr 13 10:13:25 2017: [debug  ] [23994] StatsClient binding socket
              Thu Apr 13 10:13:25 2017: [debug  ] [23994] StatsClient bound socket to /tmp/.1071578776b35b1.sock
              Thu Apr 13 10:13:25 2017: [ notice] [23994] Starting kopano-dagent LMTP mode version 8,4,0,301 (301), pid 23994
              Thu Apr 13 10:13:56 2017: [24030] [error  ]   Python type: (null)
              Thu Apr 13 10:13:56 2017: [24030] [error  ]   Python error: 'module' object has no attribute 'DAgentPluginmanager'
              Thu Apr 13 10:13:56 2017: [24030] [crit   ] K-1732: Unable to initialize the dagent plugin manager: Unknown error code (1).
              Thu Apr 13 10:14:38 2017: [24084] [error  ]   Python type: (null)
              Thu Apr 13 10:14:38 2017: [24084] [error  ]   Python error: 'module' object has no attribute 'DAgentPluginmanager'
              Thu Apr 13 10:14:38 2017: [24084] [crit   ] K-1732: Unable to initialize the dagent plugin manager: Unknown error code (1).
              
              
              fbartels 1 Reply Last reply Reply Quote 0
              • fbartels
                fbartels Kopano @umgfoin last edited by

                @umgfoin did you also update python-kopano?

                Regards Felix

                Resources:
                https://kopano.com/blog/how-to-get-kopano/
                https://documentation.kopano.io/
                https://kb.kopano.io/

                Support overview:
                https://kopano.com/support/

                Balaji 1 Reply Last reply Reply Quote 0
                • umgfoin
                  umgfoin last edited by

                  @fbartels
                  yes,

                  cd  core-8.4.0~301_64.1-RHEL_6_PHP_56-x86_64
                  yum update *.rpm
                  ...
                  Untersuche python-kopano-8.4.0~301-64.1.x86_64.rpm: python-kopano-8.4.0~301-64.1.x86_64
                  python-kopano-8.4.0~301-64.1.x86_64.rpm: aktualisiert installierte Pakete nicht.
                  ...
                  
                  1 Reply Last reply Reply Quote 0
                  • Balaji
                    Balaji @fbartels last edited by Balaji

                    @fbartels Hi Felix,

                    Even after disabling dagent plugin, mails are not delivering. This is on CentOS 7.3

                    Apr 18 23:45:55 kcn postfix/local[5299]: B980B60D72CF: to=, relay=local, delay=485, delays=485/0.03/0/0.06, dsn=4.3.0, status=deferred (temporary failure. Command output: [ 5300] [error  ]   Python type: (null) [ 5300] [error  ]   Python error: 'module' object has no attribute 'DAgentPluginmanager' [ 5300] [crit   ] K-1732: Unable to initialize the dagent plugin manager: Unknown error code (1). )![alt text](image url)
                    
                    
                    [root@kcn kopano]# grep -i ^plugin_enabled dagent.cfg 
                    plugin_enabled = no
                    
                    [root@kcn kopano]# rpm -qa | egrep -i 'kopano-server|python-kopano'
                    kopano-server-8.4.0~344-71.1.x86_64
                    kopano-server-packages-8.4.0~344-71.1.x86_64
                    python-kopano-8.4.0~344-71.1.x86_64
                    [root@kcn kopano]#
                    1 Reply Last reply Reply Quote 0
                    • fbartels
                      fbartels Kopano last edited by

                      Since I had a Centos 7 machine up to test something else, I decided to give this another try. But still no luck in reproducing this.

                      Kopano Core 8,4,0,344
                      CentOS Linux release 7.3.1611 (Core)

                      Regards Felix

                      Resources:
                      https://kopano.com/blog/how-to-get-kopano/
                      https://documentation.kopano.io/
                      https://kb.kopano.io/

                      Support overview:
                      https://kopano.com/support/

                      Balaji 2 Replies Last reply Reply Quote 0
                      • Balaji
                        Balaji @fbartels last edited by

                        @fbartels

                        • I followed the installation procedure from here
                        • Its the exact same version of CentOS Linux release 7.3.1611 (Core)
                        • postfix config are basic.
                        1 Reply Last reply Reply Quote 0
                        • Balaji
                          Balaji @fbartels last edited by

                          Hi @fbartels ,

                          I was using below settings in main.cf which was the issue. I commented it out

                          mail_command = /usr/sbin/kopano-dagent "$USER" 
                          

                          Instead I started using below and it worked.

                          mailbox_transport = lmtp:127.0.0.1:2003
                          
                          fbartels 1 Reply Last reply Reply Quote 0
                          • fbartels
                            fbartels Kopano @Balaji last edited by

                            Ok, thanks to your additional information I was finally able to reproduce this issue and it seems to indeed only happen, when delivering via pipe. I have created https://jira.kopano.io/browse/KC-642 to followup on this issue.

                            Regards Felix

                            Resources:
                            https://kopano.com/blog/how-to-get-kopano/
                            https://documentation.kopano.io/
                            https://kb.kopano.io/

                            Support overview:
                            https://kopano.com/support/

                            1 Reply Last reply Reply Quote 0
                            • mcostan
                              mcostan last edited by

                              I guess this also solves:

                              https://forum.kopano.io/topic/191/kopano-dagent-not-working-core-8-4-0-344/6

                              umgfoin 1 Reply Last reply Reply Quote 0
                              • umgfoin
                                umgfoin @mcostan last edited by

                                @fbartels
                                Great, you discovered that!
                                Just changed my postfix-config from PIPE to LMTP transport and can confirm your findings for Centos 6.9/ Python 2.7:
                                No dagent-plugin problem with LMTP transport - the issue seems to concern piped connections, only.
                                ++umgfoin.

                                1 Reply Last reply Reply Quote 0
                                • umgfoin
                                  umgfoin last edited by umgfoin

                                  …fixed with commit c699e000835 .

                                  Thanks,
                                  ++umgfoin.

                                  1 Reply Last reply Reply Quote 0
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