Designate

  1. Bug #1941988
  2. Comment #0

Comment 0 for bug 1941988

Revision history for this message
Arkady Shtempler (ashtempl) wrote : Designate DNS – Secondary zone is failed to be created and gets into the ERROR status

### Scenario ###
1) Start remote BIND
Use some external host as a DNS server to tor AXFR the Zone from.
Note: BIND9 on RHEL is provided in attached doc.

2) From your setup check that AXFR is possible
dig @10.9.95.132 debuntu.foo axfr

3) Create a Secondary zone with:
openstack zone create debuntu.foo. --type SECONDARY --master 10.9.95.132

### Expected result ###
Secondary zone is created and ACTIVE

### Actual Result ###
Secondary zone gets into the ERROR statuses + Error in log

journalctl -f -u devstack@designate-mdns
Aug 25 12:56:43 seal08 designate-mdns[116065]: INFO designate.dnsutils [None req-0fcfe0f2-b8cb-4eec-ae42-9ea88e089c69 None None] Doing AXFR for debuntu.foo. from {'zone_id': 'ccadec69-4723-4c24-987f-7cb1587cff2c', 'host': '10.35.64.8', 'port': 53, 'id': 'ba2932b2-3f81-4ad5-985c-86ce081fe62d', 'created_at': datetime.datetime(2021, 8, 25, 9, 56, 44), 'updated_at': None, 'version': 1}
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils [None req-0fcfe0f2-b8cb-4eec-ae42-9ea88e089c69 None None] Problem doing AXFR debuntu.foo. from {'zone_id': 'ccadec69-4723-4c24-987f-7cb1587cff2c', 'host': '10.35.64.8', 'port': 53, 'id': 'ba2932b2-3f81-4ad5-985c-86ce081fe62d', 'created_at': datetime.datetime(2021, 8, 25, 9, 56, 44), 'updated_at': None, 'version': 1}. Trying next server.: TypeError: '>' not supported between instances of 'float' and 'NoneType'
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils Traceback (most recent call last):
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils   File "/opt/stack/designate/designate/dnsutils.py", line 358, in do_axfr
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils     raw_zone = dns.zone.from_xfr(xfr, relativize=False)
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils   File "/usr/local/lib/python3.8/dist-packages/dns/zone.py", line 1106, in from_xfr
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils     for r in xfr:
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils   File "/usr/local/lib/python3.8/dist-packages/dns/query.py", line 611, in xfr
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils     if mexpiration is None or mexpiration > expiration:
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils TypeError: '>' not supported between instances of 'float' and 'NoneType'
Aug 25 12:56:43 seal08 designate-mdns[116065]: ERROR designate.dnsutils
Aug 25 12:56:43 seal08 designate-mdns[116065]: WARNING designate.mdns.xfr [None req-0fcfe0f2-b8cb-4eec-ae42-9ea88e089c69 None None] XFR failed for debuntu.foo.. No servers in [{'zone_id': 'ccadec69-4723-4c24-987f-7cb1587cff2c', 'host': '10.35.64.8', 'port': 53, 'id': 'ba2932b2-3f81-4ad5-985c-86ce081fe62d', 'created_at': datetime.datetime(2021, 8, 25, 9, 56, 44), 'updated_at': None, 'version': 1}] was reached.: designate.exceptions.XFRFailure: XFR failed for debuntu.foo.. No servers in [{'zone_id': 'ccadec69-4723-4c24-987f-7cb1587cff2c', 'host': '10.35.64.8', 'port': 53, 'id': 'ba2932b2-3f81-4ad5-985c-86ce081fe62d', 'created_at': datetime.datetime(2021, 8, 25, 9, 56, 44), 'updated_at': None, 'version': 1}] was reached.
Aug 25 12:56:43 seal08 designate-mdns[116064]: DEBUG designate.service [None req-b13130f1-3391-4bbc-b026-22f6ffefa71e None None] Handling UDP Request from: 10.35.64.8:38424 {{(pid=116064) _dns_handle_udp /opt/stack/designate/designate/service.py:317}}
Aug 25 12:56:44 seal08 designate-mdns[116064]: DEBUG designate.storage.impl_sqlalchemy [None req-97b992fe-cf4f-4c84-bc3d-88556d9b9abc None None] Fetched zone <Zone id:'ccadec69-4723-4c24-987f-7cb1587cff2c' type:'SECONDARY' name:'debuntu.foo.' pool_id:'794ccc2c-d751-44fe-b57f-8894c9f5c842' serial:'1' action:'CREATE' status:'PENDING'> {{(pid=116064) _find_zones /opt/stack/designate/designate/storage/impl_sqlalchemy/__init__.py:252}}
Aug 25 12:56:44 seal08 designate-mdns[116058]: DEBUG designate.service [None req-df0d9bc9-e4d6-43ff-b108-05b4005b4357 None None] Handling TCP Request from: 10.35.64.8:49715 {{(pid=116058) _dns_handle_tcp /opt/stack/designate/designate/service.py:203}}
Aug 25 12:56:44 seal08 designate-mdns[116058]: DEBUG designate.storage.impl_sqlalchemy [None req-e1f94cdb-a9dc-434c-907c-54769d7375b8 None None] Fetched zone <Zone id:'ccadec69-4723-4c24-987f-7cb1587cff2c' type:'SECONDARY' name:'debuntu.foo.' pool_id:'794ccc2c-d751-44fe-b57f-8894c9f5c842' serial:'1' action:'CREATE' status:'PENDING'> {{(pid=116058) _find_zones /opt/stack/designate/designate/storage/impl_sqlalchemy/__init__.py:252}}

Note:
Michael has already found the reason.
From:Michael Johnson
Aug 26, 2021, 8:13 PM (3 days ago)
to me

Ok, so this is a bug in the "dnspython" library designate uses.

Version 1.16 which you had installed has:
        if mexpiration is None or mexpiration > expiration:
            mexpiration = expiration
Which is broken.
Version 2.0.0rc1 has: (https://github.com/rthalley/dnspython/blob/v2.0.0rc1/dns/query.py#L925)
            if mexpiration is None or \
               (expiration is not None and mexpiration > expiration):
                mexpiration = expiration
Which works.