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From rammohan ganapavarapu <rammohanga...@gmail.com>
Subject Re: quorum.cnxn.threads.size
Date Thu, 12 Dec 2019 15:01:35 GMT
Flavio,

Thanks for clarification, I have a cluster with sasl disabled but in start
up log I still see number of threads set to default 20.

Thanks,
Ram
On Thu, Dec 12, 2019, 6:43 AM Flavio Junqueira <fpj@apache.org> wrote:

> Hi Ram,
>
> Yes, this parameter is only applicable when SASL is enabled, see in
> QuorumCnxManager#initializeAuth how it doesn't have a chance to use the
> parameter when SASL is disabled.
>
> Your assessment is correct about it being based on the number of
> participants, excluding observers. This parameter is used in
> QuorumCnxManager, which manages connections for leader election, and
> observers do not participate in the election.
>
> -Flavio
>
> > On 12 Dec 2019, at 14:41, rammohan ganapavarapu <rammohanganap@gmail.com>
> wrote:
> >
> > Any idea?
> >
> > On Wed, Dec 11, 2019, 2:23 PM rammohan ganapavarapu <
> rammohanganap@gmail.com>
> > wrote:
> >
> >> And to add more on the same property, the description says
> >>
> >>
> >>
> >>
> >>
> >> *"For example, consider a 3-node cluster,# during quorum formation at
> >> least 3 outgoing connection requests and 3 incoming connection# requests
> >> will occur. So total 6 threads will be used. It is recommended to
> configure
> >> 2x# number of threads for smooth execution, where 'x' represents the
> >> cluster size"*
> >>
> >> Here* cluster size* is number of *followers* right not both followers
> and
> >> observers??
> >>
> >> Ram
> >>
> >> On Wed, Dec 11, 2019 at 2:19 PM rammohan ganapavarapu <
> >> rammohanganap@gmail.com> wrote:
> >>
> >>> Is this property only applicable in case of sasl auth enabled? or does
> it
> >>> work even when we turn off authentication?
> >>>
> >>>
> >>> *quorum.cnxn.threads.size*
> >>>
> >>> Thanks,
> >>> Ram
> >>>
> >>
>
>

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