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From Flavio Junqueira <...@apache.org>
Subject Re: quorum.cnxn.threads.size
Date Thu, 12 Dec 2019 17:13:34 GMT
If you set up logging at DEBUG level and you see this message:
   "Not initializing connection executor as quorum sasl auth is disabled"
then you are good.

-Flavio

> On 12 Dec 2019, at 18:06, rammohan ganapavarapu <rammohanganap@gmail.com> wrote:
> 
> I am assuming its only logging, is there any way i can verify its not
> opening cnxn threads?
> 
> 
> 
> On Thu, Dec 12, 2019 at 7:15 AM Flavio Junqueira <fpj@apache.org> wrote:
> 
>> If it is just logging the value of the property, then it is fine because
>> the property is set, but it is not used if SASL is disabled.
>> 
>> -Flavio
>> 
>>> On 12 Dec 2019, at 16:01, rammohan ganapavarapu <rammohanganap@gmail.com>
>> wrote:
>>> 
>>> 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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