[dnsdist] server policy to failover to another pool

[Justin Valentini]

Looks like it's a signed int, so 2147483647.


On 10/06/2017 10:01 AM, Justin Valentini wrote:
> Does anyone know the upper limit on the weight attribute for a server?
>
> On 10/06/2017 08:39 AM, Justin Valentini wrote:
>> Hi Remi,
>>
>>
>> On 10/06/2017 08:17 AM, Remi Gacogne wrote:
>>> Hi Justin,
>>>
>>> On 10/06/2017 02:06 PM, Justin Valentini wrote:
>>>> I tried the orderedLeastOutstanding policy but ran into issues when
>>>> testing. If I explicitly set my order #1 server to down (e.g.
>>>> getServer(0):setDown()) dnsdist doesn't not directly traffic to the 
>>>> next
>>>> ordered server. Instead the query times out. However, when we bring 
>>>> down
>>>> the actual dns server and let dnsdist healthcheck it to down, it seems
>>>> to work.
>>>>
>>>> Do any of you know why this may be the case? Do isUp() and upStatus 
>>>> not
>>>> respect explicitly set DOWN state?
>>> The way it is currently handled might not be very intuitive. When you
>>> call setDown() or SetUp(), this sets the backend's "availability" state
>>> to Up or Down, instead of the default of Auto, but does not change the
>>> "upStatus".
>>> The isUp() method checks whether "availability" is set to Down or Up
>>> before checking "upStatus, so orderedLeastOutstanding should either use
>>> the isUp() method, or check the "availability" state before looking at
>>> "upStatus".
>>
>> Using isUp() did the trick. Thank you!
>>
>> -Justin
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