[Kea-users] HA based on galera

[Tobi Obadiah]

Hello there,


Am just getting started with Kea, on my attempt to install kea on
Ubuntu16.04 desktop  I keep getting the "Missing required header files"
errors
I have to manage to fix some of them but wonder if there is a
standard procedure to get this fix.  Though I have boost installed
"boost/shared_ptr.hpp"
is reported missing.

I appreciate your help.

On Tue, Mar 13, 2018 at 11:37 AM, Dominik Epple <dominik.epple at gmail.com>
wrote:

> Hi,
>
> it might help if you pick a dedicated galera write node, i.e. both of your
> kea servers write to the same galera node at each point in time. You can
> still configure that in a HA fashion by some active-passive loadbalancer or
> a failover IP or something.
>
> The other option would be that the kea code gets adjusted for running
> "galera-aware" but I am no expert on what exactly needs to happen there.
> But if it can't be fixed on application level, it probably can be fixed on
> system level by picking a dedicated write node.
>
> Dominik
>
> 2018-03-13 11:28 GMT+01:00 <lex at ezelink.com>:
>
>> Hi guys,
>>
>> I'm running 2 kea dhcp servers and connect them to galera-mysql cluster
>> for HA.
>> Everything is ok, but sometimes i have this message in logs:
>>
>> 2018-03-13 14:14:45.036 ERROR [kea-dhcp4.alloc-engine/11864]
>> ALLOC_ENGINE_V4_ALLOC_ERROR [hwtype=1 b8:53:ac:xx:xx:xx],
>> cid=[01:b8:53:ac:xx:xx:xx], tid=0xa56d03a4: error during attempt to
>> allocate an IPv4 address: unable to execute for <SELECT address, hwaddr,
>> client_id, valid_lifetime, expire, subnet_id, fqdn_fwd, fqdn_rev, hostname,
>> state FROM lease4 WHERE client_id = ? AND subnet_id = ?>, reason: Deadlock
>> found when trying to get lock; try restarting transaction (error code 1213)
>>
>> the network is relatively small - not more than 50-100 requests per second
>>
>> How can I get rid of these messages? Cause after getting this error,
>> server sends NACK to client
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>>
>
>
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