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Posted to user@cassandra.apache.org by Thouraya TH <th...@gmail.com> on 2015/08/03 13:29:48 UTC
phi_convict_threshold
Hi all,
Please, can you explain me this sentence:
The configuration parameter phi_convict_threshold in the cassandra.yaml
file is used to control Cassandra’s sensitivity of node failure detection.
?
Thank you so much for help.
Kind regards.
Re: phi_convict_threshold
Posted by Thouraya TH <th...@gmail.com>.
Ok, thank you so much for answer.
Kind Regards.
2015-08-03 15:09 GMT+01:00 DuyHai Doan <do...@gmail.com>:
> Yes it is used by Gossip
>
> On Mon, Aug 3, 2015 at 3:33 PM, Thouraya TH <th...@gmail.com> wrote:
>
>> Ok, i will see this reference. thank you so much for answer.
>> So i understand that this value is used by gossip protocol ? that's it ?
>> Best Regards.
>>
>> 2015-08-03 13:41 GMT+01:00 DuyHai Doan <do...@gmail.com>:
>>
>>> You can read this paper that explains the Phi Accrual Failure detection
>>> algo: http://vsedach.googlepages.com/HDY04.pdf
>>>
>>> The phi value is the level of suspicion a server might be down.
>>> phi_convict_threshold = suspicion level above which a server is marked down
>>>
>>>
>>> On Mon, Aug 3, 2015 at 1:29 PM, Thouraya TH <th...@gmail.com>
>>> wrote:
>>>
>>>> Hi all,
>>>>
>>>> Please, can you explain me this sentence:
>>>>
>>>> The configuration parameter phi_convict_threshold in the cassandra.yaml
>>>> file is used to control Cassandra’s sensitivity of node failure detection.
>>>>
>>>> ?
>>>>
>>>>
>>>> Thank you so much for help.
>>>> Kind regards.
>>>>
>>>
>>>
>>
>
Re: phi_convict_threshold
Posted by DuyHai Doan <do...@gmail.com>.
Yes it is used by Gossip
On Mon, Aug 3, 2015 at 3:33 PM, Thouraya TH <th...@gmail.com> wrote:
> Ok, i will see this reference. thank you so much for answer.
> So i understand that this value is used by gossip protocol ? that's it ?
> Best Regards.
>
> 2015-08-03 13:41 GMT+01:00 DuyHai Doan <do...@gmail.com>:
>
>> You can read this paper that explains the Phi Accrual Failure detection
>> algo: http://vsedach.googlepages.com/HDY04.pdf
>>
>> The phi value is the level of suspicion a server might be down.
>> phi_convict_threshold = suspicion level above which a server is marked down
>>
>>
>> On Mon, Aug 3, 2015 at 1:29 PM, Thouraya TH <th...@gmail.com> wrote:
>>
>>> Hi all,
>>>
>>> Please, can you explain me this sentence:
>>>
>>> The configuration parameter phi_convict_threshold in the cassandra.yaml
>>> file is used to control Cassandra’s sensitivity of node failure detection.
>>>
>>> ?
>>>
>>>
>>> Thank you so much for help.
>>> Kind regards.
>>>
>>
>>
>
Re: phi_convict_threshold
Posted by Thouraya TH <th...@gmail.com>.
Ok, i will see this reference. thank you so much for answer.
So i understand that this value is used by gossip protocol ? that's it ?
Best Regards.
2015-08-03 13:41 GMT+01:00 DuyHai Doan <do...@gmail.com>:
> You can read this paper that explains the Phi Accrual Failure detection
> algo: http://vsedach.googlepages.com/HDY04.pdf
>
> The phi value is the level of suspicion a server might be down.
> phi_convict_threshold = suspicion level above which a server is marked down
>
>
> On Mon, Aug 3, 2015 at 1:29 PM, Thouraya TH <th...@gmail.com> wrote:
>
>> Hi all,
>>
>> Please, can you explain me this sentence:
>>
>> The configuration parameter phi_convict_threshold in the cassandra.yaml
>> file is used to control Cassandra’s sensitivity of node failure detection.
>>
>> ?
>>
>>
>> Thank you so much for help.
>> Kind regards.
>>
>
>
Re: phi_convict_threshold
Posted by DuyHai Doan <do...@gmail.com>.
You can read this paper that explains the Phi Accrual Failure detection
algo: http://vsedach.googlepages.com/HDY04.pdf
The phi value is the level of suspicion a server might be down.
phi_convict_threshold = suspicion level above which a server is marked down
On Mon, Aug 3, 2015 at 1:29 PM, Thouraya TH <th...@gmail.com> wrote:
> Hi all,
>
> Please, can you explain me this sentence:
>
> The configuration parameter phi_convict_threshold in the cassandra.yaml
> file is used to control Cassandra’s sensitivity of node failure detection.
>
> ?
>
>
> Thank you so much for help.
> Kind regards.
>