High memory consumption in bind 9.18.2

[Ondřej Surý]

Hi Klarstein,

Gathering the output of named statschannel should be good enough for initial assessment (json please).

For 9.18, make sure the jemalloc is being used at runtime.

Ondrej
--
Ondřej Surý — ISC (He/Him)

My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours.

> On 18. 5. 2022, at 22:32, Klaus Darilion via bind-users <bind-users at lists.isc.org> wrote:
> 
> Can you please provide some commands whose output you are interested? I want to collect the statistics for 9.16 before updating to 9.18.
> Thanks
> Klaus
> 
>> -----Ursprüngliche Nachricht-----
>> Von: bind-users <bind-users-bounces at lists.isc.org> Im Auftrag von Petr
>> Špacek
>> Gesendet: Mittwoch, 18. Mai 2022 18:20
>> An: bind-users at lists.isc.org
>> Betreff: Re: AW: High memory consumption in bind 9.18.2
>> 
>> I would be very interested in hearing more!
>> 
>> In majority of our internal testing 9.16 has higher memory consumption
>> than 9.18, especially when 9.18 is compiled with libjemalloc. And the
>> differences are not small, for some configurations it can be even 2x or
>> 3x more on 9.16 than it is on 9.18.
>> 
>> If you encounter it again please get back to us so we can diagnose it.
>> 
>> Thank you!
>> Petr Špaček
>> 
>> 
>>> On 18. 05. 22 8:56, Klaus Darilion via bind-users wrote:
>>> I remember we had similar issues with 9.18 (isc ppa packages) and hence
>> wen't back to 9.16. But I can not remember the details.
>>> 
>>> regards
>>> Klaus
>>> 
>>>> -----Ursprüngliche Nachricht-----
>>>> Von: bind-users <bind-users-bounces at lists.isc.org> Im Auftrag von
>> Ondrej
>>>> Surý101 71 l t1h, 18. Mai 2022 08:37
>>>> An: Raman kumar <kumarraman.mca at gmail.com>
>>>> Cc: bind-users at lists.isc.org
>>>> Betreff: Re: High memory consumption in bind 9.18.2
>>>> 
>>>> You did not provided any details, so we can’t really help you.
>>>> 
>>>> What is “RAM consumption” anyway? VSZ, RSS, numbers pulled from
>> stats
>>>> channel from named?
>>>> 
>>>> What’s the hardware, what is the configuration, how was BIND 9 compiled
>>>> (or packaged)?
>>>> 
>>>> The more details, the better
>>>> 
>>>> Ondrej
>>>> --
>>>> Ondřej Surý (He/Him)
>>>> ondrej at isc.org
>>>> 
>>>> My working hours and your working hours may be different. Please do
>> not
>>>> feel obligated to reply outside your normal working hours.
>>>> 
>>>>> On 18. 5. 2022, at 8:32, Raman kumar <kumarraman.mca at gmail.com>
>>>> wrote:
>>>>> 
>>>>> Hello Team,
>>>>> 
>>>>> While upgrading from BIND 9.16.10 to 9.18.2, we have observed high
>>>> memory consumption.
>>>>> 
>>>>> On version 9.16.2, RAM consumption was 3.8 GB. And on 9.18.2, RAM
>>>> consumption is 4.5 GB. Due to this an increase of approximately 20 %
>>>> memory is observed.
>>>>> 
>>>>> Is this the expected behaviour or any tuning is needed?
>>>>> 
>>>>> Thanks in advance.
>>>>> 
>>>>> Regards,
>>>>> Raman
>>>>> --
>>>>> Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe
>> from
>>>> this list
>>>>> 
>>>>> ISC funds the development of this software with paid support
>>>> subscriptions. Contact us at https://www.isc.org/contact/ for more
>>>> information.
>>>>> 
>>>>> 
>>>>> bind-users mailing list
>>>>> bind-users at lists.isc.org
>>>>> https://lists.isc.org/mailman/listinfo/bind-users
>>> 
>> 
>> 
>> --
>> Petr Špaček
>> --
>> Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this
>> list
>> 
>> ISC funds the development of this software with paid support subscriptions.
>> Contact us at https://www.isc.org/contact/ for more information.
>> 
>> 
>> bind-users mailing list
>> bind-users at lists.isc.org
>> https://lists.isc.org/mailman/listinfo/bind-users
> -- 
> Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list
> 
> ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information.
> 
> 
> bind-users mailing list
> bind-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/bind-users