[Kea-users] HA - Hot-Stanby Problem - Kea v1.6.1/2

[Pizu]

Hi,

Sorry for the late reply, what do you mean non-compliant client? Switching
completely off the machine only works switching off the service doesn't
work.

Regards,

David


On Tue, 23 Jun 2020 at 22:14, Thomas Markwalder <tmark at isc.org> wrote:

> The mostfrequent cause for this is non-compliant clients that do not set
> the SECS field on retries.  If clients are not setting this field > 0 on
> retries they will not be detected as unacked.  Take a look at the packet
> capture and/or try setting this to 0.
>
> See:
>
> https://kea.readthedocs.io/en/latest/arm/hooks.html#load-balancing-configuration.
>
> Following the sample config there is discussion of these parameters.
>
>
>
>
>
> On 6/23/20 3:50 PM, Ismael Suarez wrote:
> > With a similar config (basically the same), I am facing the same
> situation on 1.6.2. Anyone care to point out some obvios configs that we
> might be missing?
> >
> >
> >
> > --
> >
> > Ism
> >
> >
> > -----Original Message-----
> > From: Pizu <pizpower at gmail.com<mailto:Pizu%20%3cpizpower at gmail.com%3e>>
> > To: kea-users at lists.isc.org<mailto:kea-users at lists.isc.org>
> > Subject: [Kea-users] HA - Hot-Stanby Problem - Kea v1.6.1/2
> > Date: Mon, 22 Jun 2020 16:47:23 +0200
> >
> > Hi,
> >
> > Am testing the HA and if I switch off the primary node nothing works.
> can you please help?
> >
> > Primary Configuration:
> >
> >          "hooks-libraries": [{
> >                  "library":
> "/usr/local/lib/kea/hooks/libdhcp_lease_cmds.so",
> >                  "parameters": {}
> >              }, {
> >                  "library":
> "/usr/local/lib/kea/hooks/libdhcp_stat_cmds.so",
> >                  "parameters": {}
> >              }, {
> >                  "library": "/usr/local/lib/kea/hooks/libdhcp_ha.so",
> >                  "parameters": {
> >                      "high-availability": [{
> >                              "heartbeat-delay": 10000,
> >                              "max-ack-delay": 10000,
> >                              "max-response-delay": 45000,
> >                              "max-unacked-clients": 10,
> >                              "mode": "hot-standby",
> >                              "peers": [{
> >                                      "auto-failover": true,
> >                                      "name":
> "mstkeadhcpsrv01.corporate.intra",
> >                                      "role": "primary",
> >                                      "url": "http://172.16.193.39:8080/"
> >                                  }, {
> >                                      "auto-failover": true,
> >                                      "name":
> "ztnkeadhcpsrv01.corporate.intra",
> >                                      "role": "standby",
> >                                      "url": "http://172.16.60.39:8080/"
> >                                  }
> >                              ],
> >                              "send-lease-updates": true,
> >                              "sync-leases": true,
> >                              "sync-page-limit": 10000,
> >                              "sync-timeout": 60000,
> >                              "this-server-name":
> "mstkeadhcpsrv01.corporate.intra"
> >                          }
> >                      ]
> >                  }
> >              }
> >          ],
> >
> > Standby Configuration:
> >
> >          "hooks-libraries": [{
> >                  "library":
> "/usr/local/lib/kea/hooks/libdhcp_lease_cmds.so",
> >                  "parameters": {}
> >              }, {
> >                  "library":
> "/usr/local/lib/kea/hooks/libdhcp_stat_cmds.so",
> >                  "parameters": {}
> >              }, {
> >                  "library": "/usr/local/lib/kea/hooks/libdhcp_ha.so",
> >                  "parameters": {
> >                      "high-availability": [{
> >                              "heartbeat-delay": 10000,
> >                              "max-ack-delay": 10000,
> >                              "max-response-delay": 45000,
> >                              "max-unacked-clients": 10,
> >                              "mode": "hot-standby",
> >                              "peers": [{
> >                                      "auto-failover": true,
> >                                      "name":
> "mstkeadhcpsrv01.corporate.intra",
> >                                      "role": "primary",
> >                                      "url": "http://172.16.193.39:8080/"
> >                                  }, {
> >                                      "auto-failover": true,
> >                                      "name":
> "ztnkeadhcpsrv01.corporate.intra",
> >                                      "role": "standby",
> >                                      "url": "http://172.16.60.39:8080/"
> >                                  }
> >                              ],
> >                              "send-lease-updates": true,
> >                              "sync-leases": true,
> >                              "sync-page-limit": 10000,
> >                              "sync-timeout": 60000,
> >                              "this-server-name":
> "ztnkeadhcpsrv01.corporate.intra"
> >                          }
> >                      ]
> >                  }
> >              }
> >          ],
> >
> > Regards,
> >
> > David
> >
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