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Posted to user@cassandra.apache.org by Павел Сапежко <am...@gmail.com> on 2017/07/07 09:16:46 UTC

Understanding of cassandra metrics

Hello, I have several question about cassandra metrics. What does exactly
mean the next metrics:

   - CoordinatorReadLatency
   - CoordinatorScanLatency
   - ReadLatency
   - RangeLatency
   - ViewLockAcquireTime
   - ViewReadTime

-- 

С уважением,

Павел Сапежко

skype: p.sapezhko

Re: Understanding of cassandra metrics

Posted by Павел Сапежко <am...@gmail.com>.

Are you really think that I don't read docs? Do you have enough information
in the documentation? I think no. What exactly does mean CoordinatorScanLatency
for example? Is it latency on full table scan or maybe range scan by
clustering key? What exactly mean ViewLockAcquireTime? What is "partition
lock"? Can anybody write into partition while locked? Etc.
пт, 7 июл. 2017 г. в 13:01, Ivan Iliev <iv...@gmail.com>:

> 1st result on google returns:
>
> http://cassandra.apache.org/doc/latest/operating/metrics.html
>
> On Fri, Jul 7, 2017 at 12:16 PM, Павел Сапежко <am...@gmail.com>
> wrote:
>
>> Hello, I have several question about cassandra metrics. What does exactly
>> mean the next metrics:
>>
>>    - CoordinatorReadLatency
>>    - CoordinatorScanLatency
>>    - ReadLatency
>>    - RangeLatency
>>    - ViewLockAcquireTime
>>    - ViewReadTime
>>
>> --
>>
>> С уважением,
>>
>> Павел Сапежко
>>
>> skype: p.sapezhko
>>
>
> --

С уважением,

Павел Сапежко

skype: p.sapezhko

Re: Understanding of cassandra metrics

Posted by Ivan Iliev <iv...@gmail.com>.

1st result on google returns:

http://cassandra.apache.org/doc/latest/operating/metrics.html

On Fri, Jul 7, 2017 at 12:16 PM, Павел Сапежко <am...@gmail.com>
wrote:

> Hello, I have several question about cassandra metrics. What does exactly
> mean the next metrics:
>
>    - CoordinatorReadLatency
>    - CoordinatorScanLatency
>    - ReadLatency
>    - RangeLatency
>    - ViewLockAcquireTime
>    - ViewReadTime
>
> --
>
> С уважением,
>
> Павел Сапежко
>
> skype: p.sapezhko
>