[Kea-users] Kea 1.4.0 HA configuration - HA not syncing

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[Kea-users] Kea 1.4.0 HA configuration - HA not syncing

russell aspinwall
Hi,

I need advice in respect of configuring HA on a pair of Raspberry Pi 3B+
units running Kea 1.4.0.P1-3 on Ubuntu 18.10

------------------------------keactrl.conf----------------------------
# This is a configuration file for keactrl script which controls
# the startup, shutdown, reconfiguration and gathering the status
# of the Kea's processes.

# prefix holds the location where the Kea is installed.
prefix=/usr

# Location of Kea configuration files.
kea_dhcp4_config_file=/etc/kea/kea-dhcp4.conf
kea_dhcp6_config_file=/etc/kea/kea-dhcp6.conf
kea_dhcp_ddns_config_file=/etc/kea/kea-dhcp-ddns.conf
kea_ctrl_agent_config_file=/etc/kea/kea-ctrl-agent.conf

# Location of Kea binaries.
exec_prefix=${prefix}
dhcp4_srv=${exec_prefix}/sbin/kea-dhcp4
dhcp6_srv=${exec_prefix}/sbin/kea-dhcp6
dhcp_ddns_srv=${exec_prefix}/sbin/kea-dhcp-ddns
ctrl_agent_srv=${exec_prefix}/sbin/kea-ctrl-agent

# Start DHCPv4 server?
dhcp4=yes

# Start DHCPv6 server?
dhcp6=yes

# Start DHCP DDNS server?
dhcp_ddns=yes

# Start Control Agent?
ctrl_agent=yes

# Be verbose?
kea_verbose=no
------------------------------keactrl.conf----------------------------

------------------------------kea-ctrl-agent.conf---------------------
{

// This is a basic configuration for the Kea Control Agent.
// RESTful interface to be available at http://127.0.0.1:8080/
"Control-agent": {
     "http-host": "192.168.26.246",
     "http-port": 8080,

     // Specify location of the files to which the Control Agent
     // should connect to forward commands to the DHCPv4 and DHCPv6
     // server via unix domain socket.
     "control-sockets": {
         "dhcp4": {
             "socket-type": "unix",
             "socket-name": "/tmp/kea-dhcp4-ctrl.sock"
         },
         "dhcp6": {
             "socket-type": "unix",
             "socket-name": "/tmp/kea-dhcp6-ctrl.sock"
         }
     },


     // Specify hooks libraries that are attached to the Control Agent.
     // Such hooks libraries should support 'control_command_receive'
     // hook point. This is currently commented out because it has to
     // point to the existing hooks library. Otherwise the Control
     // Agent will fail to start.
     "hooks-libraries": [
        {
        "library":
"/usr/lib/arm-linux-gnueabihf/hooks/control-agent-commands.so",
        "parameters": {
            "param1": "foo"
          }
        },
       {
         "library": "/usr/lib/arm-linux-gnueabihf/hooks/libdhcp_ha.so",
         "parameters" : {
                          "high-availability": [ {
                                "this-server-name": "sauron",
                                "mode": "load-balancing",
                                "send-leases-updates": true,
                                "sync-leases": true,
                                "heartbeat-delay": 10000,
                                "max-response-delay": 10000,
                                "max-ack-delay": 5000,
                                "max-unacked-clients": 10,
                                "peers": [
                                    {
                                        "name": "sauron",
                                        "url":
"http://192.168.26.246:8080/",
                                        "role": "primary",
                                        "auto-failover": true
                                    },
                                    {
                                        "name": "mordor",
                                        "url":
"http://122.168.26.248:8080/",
                                        "role": "secondary",
                                        "auto-failover": true
                                    }
                                ]
                            } ]
                        }
       }
     ]
},

// Logging configuration starts here. Kea uses different loggers to log
various
// activities. For details (e.g. names of loggers), see Chapter 18.
"Logging":
{
   "loggers": [
     {
         // This specifies the logging for Control Agent daemon.
         "name": "kea-ctrl-agent",
         "output_options": [
             {
                 "output": "/var/log/kea/kea-ctrl-agent.log"

                 // This governs whether the log output is flushed to
disk after
                 // every write.
                 // "flush": false,

                 // This specifies the maximum size of the file before
it is
                 // rotated.
                 // "maxsize": 1048576,

                 // This specifies the maximum number of rotated files
to keep.
                 // "maxver": 8
             }
         ],
         // This specifies the severity of log messages to keep.
Supported values
         // are: FATAL, ERROR, WARN, INFO, DEBUG
         "severity": "INFO",

         // If DEBUG level is specified, this value is used. 0 is least
verbose,
         // 99 is most verbose. Be cautious, Kea can generate lots and lots
         // of logs if told to do so.
         "debuglevel": 0
     }
   ]
}
}
------------------------------kea-ctrl-agent.conf---------------------


------------------------------kea-dhcp4.conf--------------------------
{

# DHCPv4 configuration starts here.
"Dhcp4":
{
# Add names of interfaces to listen on.
   "interfaces-config": {
     "interfaces": [ "eth0" ],
     "dhcp-socket-type": "raw"
   },

     "control-sockets": {
             "socket-type": "unix",
             "socket-name": "/tmp/kea-dhcp4-ctrl.sock"
     },

# Use Memfile lease database backend to store leases in a CSV file.
   "lease-database": { "type": "memfile", "persist": true, "name":
"/var/kea/dhcp4.leases" },
   "hooks-libraries": [
       {
          "library":
"/usr/lib/arm-linux-gnueabihf/hooks/libdhcp_lease_cmds.so",
          "parameters": {}
       },
       {
         "library": "/usr/lib/arm-linux-gnueabihf/hooks/libdhcp_ha.so",
         "parameters" : {
                          "high-availability": [ {
                                "this-server-name": "sauron",
                                "mode": "load-balancing",
                                "send-leases-updates": true,
                                "sync-leases": true,
                                "heartbeat-delay": 10000,
                                "max-response-delay": 10000,
                                "max-ack-delay": 5000,
                                "max-unacked-clients": 10,
                                "peers": [
                                    {
                                        "name": "sauron",
                                        "url":
"http://192.168.26.246:8080/",
                                        "role": "primary",
                                        "auto-failover": true
                                    },
                                    {
                                        "name": "mordor",
                                        "url":
"http://192.168.26.248:8080/",
                                        "role": "secondary",
                                        "auto-failover": true
                                    }
                                ]
                            } ],
                          "service": [ "dhcp4" ],
                          "arguments": { "server-name": "mordor",
"max-period": 600 },
                          "command": "ha-sync"
                        }
       }
    ],
# Configure Global DHCP Options
   "option-data": [
      {
         "name": "domain-name",
         "data": "pi-net.corp"
      },
      {
         "name": "domain-name-servers",
         "data": "192.168.26.246, 192.168.26.247, 192.168.26.248,
192.168.26.249"
      },
      {
         "name": "ntp-servers",
         "data": "192.168.26.246, 192.168.26.247, 192.168.26.248,
192.168.26.249"
      },
      {
         "name": "routers",
         "data": "192.168.26.10"
      }
   ],
   "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
   },

# Global (inherited by all subnets) lease lifetime is mandatory parameter.
   "valid-lifetime": 4000,

   "subnet4": [
       {    "subnet": "192.168.26.0/24",
            "id": 1996,
            "pools": [ { "pool": "192.168.26.20 - 192.168.26.29" } ],
            "reservations": [
                {
                   "hw-address": "00:00:00:00:00:00",
                   "ip-address": "192.168.26.124"
                }
            ]
        }
    ]
   },
# Logging configuration starts here. It tells Kea servers to store
# all log messages (on severity INFO or more) in a file.
# debuglevel variable is used on DEBUG level only.
   "Logging":
   {
     "loggers": [ {
       "name": "kea-dhcp4",
       "output_options": [ { "output": "/var/log/kea/kea-dhcp4.log" } ],
       "severity": "INFO",
       "debuglevel": 0
     } ]
   }

}
------------------------------kea-dhcp4.conf--------------------------

------------------------------kea-dhcp6.conf--------------------------
{

# DHCPv6 configuration starts here.
"Dhcp6":
{
# Add names of interfaces to listen on.
   "interfaces-config": {
     "interfaces": [ "eth0" ]
   },

     "control-sockets": {
         "dhcp6": {
             "socket-type": "unix",
             "socket-name": "/tmp/kea-dhcp6-ctrl.sock"
         }
     },


#  "mac-sources": [ "duid" ],

# Use Memfile lease database backend to store leases in a CSV file.
   "lease-database": {
     "type": "memfile",
     "persist": true,
     "name": "/var/kea/dhcp6.leases"
   },
# Configure Global DHCP Options
   "option-data": [
      {
         "name": "dns-servers",
         "code": 23,
         "space": "dhcp6",
         "csv-format": true,
         "data": "fd22:d18a:1556:1:9123:9736:2151:6722,
fd22:f3476:584a:f:921d:b11b:1a66:41a6"
      },
      {
         "name": "sntp-servers",
         "data": "fd22:f3476:584a:f:9123:9736:2151:6722,
fd22:f3476:584a:f:921d:b11b:1a66:41a6"
      }
   ],
# Setup reclamation of the expired leases and leases affinity.
# Expired leases will be reclaimed every 10 seconds. Every 25
# seconds reclaimed leases, which have expired more than 3600
# seconds ago, will be removed. The limits for leases reclamation
# are 100 leases or 250 ms for a single cycle. A warning message
# will be logged if there are still expired leases in the
# database after 5 consecutive reclamation cycles.
   "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
   },
# Addresses will be assigned with preferred and valid lifetimes
# being 3000 and 4000, respectively. Client is told to start
# renewing after 1000 seconds. If the server does not respond
# after 2000 seconds since the lease was granted, client is supposed
# to start REBIND procedure (emergency renewal that allows switching
# to a different server).
   "preferred-lifetime": 3000,
   "valid-lifetime": 4000,
   "renew-timer": 1000,
   "rebind-timer": 2000,

   "subnet6": [
      {    "subnet": "fd22:f3476:584a:f::/64",
           "id": 2011,
           "pools": [ { "pool": "fd22:f3476:584a:f::/64" } ]
      }
    ]
},

# Logging configuration starts here. It tells Kea servers to store
# all log messages (on severity INFO or more) in a file.
# debuglevel variable is used on DEBUG level only.
"Logging":
{
   "loggers": [
     {
       "name": "kea-dhcp6",
       "output_options": [
           {
             "output": "/var/log/kea/kea-dhcp6.log"
           }
       ],
#      "severity": "INFO",
       "severity": "DEBUG",
       "debuglevel": 7
     }
   ]
}

}
------------------------------kea-dhcp6.conf--------------------------

I can not get the HA pair to sync.
TIA
russell

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