Description Bastian Reitemeier 2015-10-09 13:41:47 CEST

nagios/plugins/check_univention_replication cannot generate a notifier id on  systems where the master hostname is resolved as an IPv6 address.

nagios/plugins/check_univention_replication uses management/univention-directory-listener/python/get_notifier_id.py to get the notifier id. This script uses a tcp socket to communicate with the master, which is initialized as socket.AF_INET and therefore not able to connect over IPv6:

    try:
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.connect((master, 6669))

        sock.send('Version: 2\nCapabilities: \n\n')
        sock.recv(100)

        sock.send('MSGID: 1\nGET_ID\n\n')
        notifier_result = sock.recv(100)

        if notifier_result:
            print "%s" % notifier_result.splitlines()[1]
    except socket.error, ex:
        print >> sys.stderr, 'Error: %s' % (ex,)
        sys.exit(1)

This results in most tests in ucs-test to fail like this, with nid set to
"Error: [Errno -2]".

[2015-10-05 12:59:04.198281]CRITICAL: no change of listener transaction id for last 0 checks (nid=Error: [Errno -2] Name or service not known lid=314)
[2015-10-05 12:59:05.254182]CRITICAL: no change of listener transaction id for last 0 checks (nid=Error: [Errno -2] Name or service not known lid=314)
[...]
[2015-10-05 13:04:20.786333]CRITICAL: no change of listener transaction id for last 0 checks (nid=Error: [Errno -2] Name or service not known lid=314)
[2015-10-05 13:04:21.835229]CRITICAL: no change of listener transaction id for last 0 checks (nid=Error: [Errno -2] Name or service not known lid=314)
[2015-10-05 13:04:22.838307]Error: replication incomplete.