[Kea-users] ha heartbeat error: unable to forward command to the dhcp6 service: No such file or directory. The server is likely to be offline

[Wlodek Wencel]

Hello,

it can be privileges or path issue, it's weird with /tmp though.

Make sure that socket can be created, second option is to try configure
it in different directories.

Regards

Wlodek

On 31/07/2020 15:06, Chris Calbreath wrote:
>
> So a bit more investigation and it appears the socket is the cause of
> the issue. running strace against the PID of kea-ctrl-agent produces
> this message:
>
> connect(17, {sa_family=AF_UNIX, sun_path="/tmp/dhcp6.sock"}, 17) = -1
> ENOENT (No such file or directory)
>
>  
>
> What would cause the socket to not be created in the path specified?
>
>  
>
>  
>
> Here is my config.
>
>  
>
> _Server 1:_
>
> *dhcpv6.conf*
>
> "control-socket": {
>
>                         "socket-type": "unix",
>
>                         "socket-name": "/tmp/dhcp6.sock "
>
>  
>
> *ctrl-agent.conf*
>
> "dhcp6": {
>
>             "socket-type": "unix",
>
>             "socket-name": "/tmp/dhcp6.sock"
>
>  
>
> _Server 2_
>
> *dhcpv6.conf*
>
> "control-socket": {
>
>                         "socket-type": "unix",
>
>                         "socket-name": "/tmp/dhcp6.sock "
>
>  
>
> *ctrl-agent.conf*
>
> "dhcp6": {
>
>             "socket-type": "unix",
>
>             "socket-name": "/tmp/dhcp6.sock "
>
>  
>
>  
>
> Chris
>
>  
>
>  
>
>  
>
>  
>
> *From:* Kea-users <kea-users-bounces at lists.isc.org
> <mailto:kea-users-bounces at lists.isc.org>> *On Behalf Of *Wlodek Wencel
> *Sent:* Tuesday, July 28, 2020 3:24 PM
> *To:* kea-users at lists.isc.org <mailto:kea-users at lists.isc.org>
> *Subject:* Re: [Kea-users] ha heartbeat error: unable to forward
> command to the dhcp6 service: No such file or directory. The server is
> likely to be offline
>
>  
>
> Hello,
>
> thank you for using Kea :)
>
> This is problem of communication between kea-ctrl-agent and kea-dhcp6,
> two most common issues in this case are:
>
>  - kea-dhcp6 is not running / failed to open socket
>
>  - there is misconfiguration of sockets (configuration in
> kea-ctrl-agent has to point to the socket that kea-dhcp6 is opening)
>
> Regards
>
> Wlodek Wencel
>
> ISC QA
>
> On 28/07/2020 22:15, Chris Calbreath wrote:
>
>     Has anyone experienced this before? I have 2 Kea v1.79 servers
>     running in a load balancing pair but I get the following errors
>     when running kea-ctrl:
>
>      
>
>     { "command": "ha-heartbeat", "service": [ "dhcp6" ] }
>
>     INFO  COMMAND_RECEIVED Received command 'ha-heartbeat'
>
>     DEBUG CTRL_AGENT_COMMAND_FORWARD_BEGIN begin forwarding command
>     ha-heartbeat to service dhcp6
>
>     DEBUG CTRL_AGENT_COMMAND_FORWARD_FAILED failed forwarding command
>     ha-heartbeat: unable to forward command to the dhcp6 service: No
>     such file or directory. The server is likely to be offline
>
>     DEBUG HTTP_SERVER_RESPONSE_SEND sending HTTP response HTTP/1.1 200
>     OK to XXX.XXX.223.245
>
>     DEBUG HTTP_SERVER_RESPONSE_SEND_DETAILS detailed information about
>     response sent to XXX.XXX.223.245:
>
>     HTTP/1.1 200 OK
>
>     Content-Length: 140
>
>     Content-Type: application/json
>
>     Date: Tue, 28 Jul 2020 20:06:35 GMT
>
>      
>
>     [ { "result": 1, "text": "unable to forward command to the dhcp6
>     service: No such file or directory. The server is likely to be
>     offline" } ]
>
>      
>
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