[Kea-users] lease reading error

Wlodek Wencel wlodek at isc.org
Wed Oct 26 16:16:41 UTC 2016


Thank you very much I will try to reproduce this issue later today. But
after quick look into your csv file I picked up one randomly choosen mac
address and:

cat kea-leases4.csv | grep d8:50:e6:84:3d:80 | wc -l
2422

you have 2422 entries for single mac address so I encourage you to use
LFC. Leases File Cleanup (LFC) will keep your csv file clean and you
wont drown in millions of old leases. Extend your config file with
"lfc-interval"

e.g.
  },
  "lease-database": {
    "type": "memfile",
    "lfc-interval": 2000
  },

All the information about .csv file you will find here:
http://kea.isc.org/docs/kea-guide.html#idp51897760

Włodek Wencel
ISC QA team

On 10/26/2016 05:47 PM, Munroe Sollog wrote:
> here is the full log of kea attempting to start I also gzipp'ed and uploaded my leases file to:
> https://ufile.io/f2b9
> 
> 
> Oct 26 11:40:01 rogi systemd[1]: Starting ISC KEA IPv4 DHCP daemon...
> Oct 26 11:40:01 rogi systemd[1]: Started ISC KEA IPv4 DHCP daemon.
> Oct 26 11:40:01 rogi kea-dhcp4[20635]: 2016-10-26 11:40:01.720 INFO  [kea-dhcp4.dhcp4/20635]
> DHCP4_STARTING Kea DHCPv4 server version 1.0.0 starting
> Oct 26 11:40:01 rogi kea-dhcp4[20635]: 2016-10-26 11:40:01.722 INFO  [kea-dhcp4.dhcpsrv/20635]
> DHCPSRV_CFGMGR_ADD_IFACE listening on interface eth0
> Oct 26 11:40:01 rogi kea-dhcp4[20635]: 2016-10-26 11:40:01.722 INFO  [kea-dhcp4.dhcpsrv/20635]
> DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
> Oct 26 11:40:01 rogi kea-dhcp4[20635]: 2016-10-26 11:40:01.723 INFO  [kea-dhcp4.dhcp4/20635]
> DHCP4_CONFIG_NEW_SUBNET a new subnet has been added to configuration: 172.31.0.0/18 with params:
> valid-lifetime=4000
> Oct 26 11:40:01 rogi kea-dhcp4[20635]: 2016-10-26 11:40:01.724 INFO  [kea-dhcp4.commands/20635]
> COMMAND_SOCKET_UNIX_OPEN Command socket opened: UNIX, fd=6, path=/var/kea/statistics-socket
> Oct 26 11:40:01 rogi kea-dhcp4[20635]: 2016-10-26 11:40:01.724 INFO  [kea-dhcp4.dhcpsrv/20635]
> DHCPSRV_MEMFILE_DB opening memory file lease database: type=memfile universe=4
> Oct 26 11:40:01 rogi kea-dhcp4[20635]: 2016-10-26 11:40:01.724 INFO  [kea-dhcp4.dhcpsrv/20635]
> DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/kea/kea-leases4.csv
> Oct 26 11:40:09 rogi kea-dhcp4[20635]: 2016-10-26 11:40:09.311 ERROR [kea-dhcp4.dhcp4/20635]
> DHCP4_PARSER_FAIL failed to create or run parser for configuration element lease-database: exceeded
> maximum number of failures 100 to read a lease from the lease file /var/lib/kea/kea-leases4.csv
> Oct 26 11:40:09 rogi kea-dhcp4[20635]: 2016-10-26 11:40:09.311 ERROR [kea-dhcp4.dhcp4/20635]
> DHCP4_CONFIG_LOAD_FAIL configuration error using file: /etc/kea/kea-dhcp4.conf, reason: exceeded
> maximum number of failures 100 to read a lease from the lease file /var/lib/kea/kea-leases4.csv
> Oct 26 11:40:09 rogi kea-dhcp4[20635]: 2016-10-26 11:40:09.311 ERROR [kea-dhcp4.dhcp4/20635]
> DHCP4_INIT_FAIL failed to initialize Kea server: configuration error using file
> '/etc/kea/kea-dhcp4.conf': exceeded maximum number of failures 100 to read a lease from the lease
> file /var/lib/kea/kea-leases4.csv
> Oct 26 11:40:09 rogi kea-dhcp4[20635]: 2016-10-26 11:40:09.311 INFO  [kea-dhcp4.commands/20635]
> COMMAND_SOCKET_UNIX_CLOSE Command socket closed: UNIX, fd=6, path=/var/kea/statistics-socket
> Oct 26 11:40:09 rogi systemd[1]: kea-dhcp4-server.service: main process exited, code=exited,
> status=1/FAILURE
> Oct 26 11:40:09 rogi systemd[1]: Unit kea-dhcp4-server.service entered failed state.
> 
> 
> On 10/25/2016 05:37 PM, Wlodek Wencel wrote:
>> text files like kea_leases.csv reach really good compression ratio. It
>> shouldn't reach more than 5Mb, but it is still to much for mailing list
>> so if you could upload it somewhere.
>>
>> Or change logging severity to DEBUG with debug level 99 and see if there
>> are additional logs.
>>
>> Regards,
>> Włodek Wencel
>>
>> On 10/25/2016 11:13 PM, Munroe Sollog wrote:
>>> below is my config.  My leases file is ~350MB so can't easily attach that to an email.
>>>
>>>
>>> {
>>> "Dhcp4":
>>> {
>>>     "control-socket": {
>>> 	"socket-type": "unix",
>>> 	"socket-name": "/var/kea/statistics-socket"
>>> },
>>>   "interfaces-config": {
>>>     "interfaces": ["eth0" ]
>>>   },
>>>   "lease-database": {
>>>     "type": "memfile"
>>>   },
>>>   "expired-leases-processing": {
>>>     "reclaim-timer-wait-time": 10,
>>>     "flush-reclaimed-timer-wait-time": 25,
>>>     "hold-reclaimed-time": 3600,
>>>     "max-reclaim-leases": 100,
>>>     "max-reclaim-time": 250,
>>>     "unwarned-reclaim-cycles": 5
>>>   },
>>>   "valid-lifetime": 4000,
>>>     "subnet4": [
>>> 	{
>>> 	    "subnet": "172.31.0.0/18",
>>> 	    "pools": [ { "pool": "172.31.1.1 - 172.31.31.254"} ],
>>> 	    "option-data": [
>>>                 {
>>> 		    "name": "domain-name-servers",
>>> 		    "data": "8.8.8.8, 8.8.4.4"
>>> 		},
>>> 		{
>>> 		    "name": "routers",
>>> 		    "data": "172.31.0.1"
>>> 		},
>>> 	    ]
>>> 	}
>>> 	
>>>     ]
>>> },
>>>
>>>     "Logging":
>>>     {
>>> 	"loggers": [
>>> 	    {
>>> 		"name": "kea-dhcp4",
>>> 		"output_options": [
>>> 		    {
>>> 			"output": "/var/log/kea-dhcp4.log"
>>> 		    }
>>> 		],
>>> 		"severity": "INFO",
>>> 		"debuglevel": 0
>>> 	    },
>>> 	]
>>>     }
>>> }
>>>
>>>
>>> On 10/25/2016 05:10 PM, Wlodek Wencel wrote:
>>>> Hello,
>>>> thanks for reporting that issue, I never came across this kind of
>>>> problem. Is there a possibility that you could send us leases file and
>>>> kea config file?
>>>>
>>>> Regards,
>>>> Włodek Wencel
>>>> QA team
>>>>
>>>> On 10/25/2016 11:05 PM, Todd Simmons (todsimmo) wrote:
>>>>> Understood, in my case it was caused by a power outage. I have 14 sites running Kea 1.0.0 and that's the only time it's happened.  
>>>>>
>>>>> Sent from my iPhone
>>>>>
>>>>>> On Oct 25, 2016, at 4:01 PM, Munroe Sollog <mus3 at lehigh.edu> wrote:
>>>>>>
>>>>>> I agree that the file is 'damaged' in some way, and of course if I delete all of the leases I expect
>>>>>> it to start fine, but I'd like to figure out the root cause before I just blow the file away.
>>>>>>
>>>>>> - Munroe
>>>>>>
>>>>>>> On 10/25/2016 04:59 PM, Todd Simmons (todsimmo) wrote:
>>>>>>> I had the same issue after the vm server was shutdown improperly after a power outage. I opened the file in VI and deleted all the leases (after saving a copy of course) and then it worked just fine. 
>>>>>>>
>>>>>>> It's possible the file is damaged and that's causing the problem. 
>>>>>>>
>>>>>>> Sent from my iPhone
>>>>>>>
>>>>>>>> On Oct 25, 2016, at 3:44 PM, Munroe Sollog <mus3 at lehigh.edu> wrote:
>>>>>>>>
>>>>>>>> running 1.0.0 code.  I stopped the service a while and then when I went to start it I got the
>>>>>>>> following error:
>>>>>>>>
>>>>>>>> kea-dhcp4[14193]: 2016-10-25 16:35:28.129 ERROR [kea-dhcp4.dhcp4/14193] DHCP4_INIT_FAIL failed to
>>>>>>>> initialize Kea server: configuration error using file '/etc/kea/kea-dhcp4.conf': exceeded maximum
>>>>>>>> number of failures 100 to read a lease from the lease file /var/lib/kea/kea-leases4.csv
>>>>>>>>
>>>>>>>>
>>>>>>>> # kea-dhcp4 -V
>>>>>>>> 1.0.0
>>>>>>>> tarball
>>>>>>>> linked with:
>>>>>>>> log4plus 1.0.4
>>>>>>>> OpenSSL 1.0.1t  3 May 2016
>>>>>>>> database:
>>>>>>>> MySQL backend 3.0, library 5.5.52
>>>>>>>> PostgreSQL backend 2.0, library 90409
>>>>>>>> Memfile backend 2.0
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> A quick google search yeilded the comments from the header file that causes the error output, but I
>>>>>>>> don't understand why it can't read its lease file all of a sudden.  I don't know if it is pertinent,
>>>>>>>> but there *a lot* of leases in the lease file:
>>>>>>>>
>>>>>>>> # wc -l /var/lib/kea/kea-leases4.csv
>>>>>>>> 4485457 /var/lib/kea/kea-leases4.csv
>>>>>>>>
>>>>>>>> I obviously don't have 4.4million users though.
>>>>>>>>
>>>>>>>> -- 
>>>>>>>> Munroe Sollog
>>>>>>>> LTS - Senior Network Engineer
>>>>>>>> x85002
>>>>>>>> _______________________________________________
>>>>>>>> Kea-users mailing list
>>>>>>>> Kea-users at lists.isc.org
>>>>>>>> https://lists.isc.org/mailman/listinfo/kea-users
>>>>>>> _______________________________________________
>>>>>>> Kea-users mailing list
>>>>>>> Kea-users at lists.isc.org
>>>>>>> https://lists.isc.org/mailman/listinfo/kea-users
>>>>>>>
>>>>>>
>>>>>> -- 
>>>>>> Munroe Sollog
>>>>>> LTS - Senior Network Engineer
>>>>>> x85002
>>>>> _______________________________________________
>>>>> Kea-users mailing list
>>>>> Kea-users at lists.isc.org
>>>>> https://lists.isc.org/mailman/listinfo/kea-users
>>>>>
>>>> _______________________________________________
>>>> Kea-users mailing list
>>>> Kea-users at lists.isc.org
>>>> https://lists.isc.org/mailman/listinfo/kea-users
>>>>
>>>
> 


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