cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From laxmikanth sadula <laxmikanth...@gmail.com>
Subject Re: Throughout of hints delivery
Date Sat, 17 Sep 2016 19:02:40 GMT
Hi Matija,

All nodes are UP & running and even GC patterns are all well. But I see lot
of "Timed out replaying hints" in HintedHandOff Manger, I suspect this
might be the reason why GBs of hints getting piled up instead of proper
delivery.
So this clearly indicates some network related issues , so just wanted to
know the way to monitor hints delivery throughput and also tcp
throughput(packets sent, received ,dropped etc., on an interface).

If anyone monitoring such stats, please let me know.

On Sat, Sep 17, 2016 at 11:26 PM, Matija Gobec <matija0204@gmail.com> wrote:

> Hi,
>
> You should first figure out why you have so many hints and then think
> about throughput of hints delivery.
> Hints are generated for dead nodes and in a healthy cluster are not
> present.
> Are all your nodes alive and running? What is the issue of inter DC
> connectivity?
>
> Matija
>
> --
>
> *Matija Gobec*
> *Co-Founder & Senior Consultant*
> www.smartcat.io
>
>
>
> *Data <https://www.smartcat.io/expertise/> --> Knowledge
> <https://www.smartcat.io/blog/> --> Power <https://www.smartcat.io/news/>
*
>
> On Sat, Sep 17, 2016 at 3:16 PM, laxmikanth sadula <
> laxmikanth524@gmail.com> wrote:
>
>> Hi,
>>
>> Is there any way to monitor hints delivery throughout/performance/issue
>> delivering hints?
>>
>> We have 2 DC c* cluster with 2.0.17 with RF=3 setup. Due to inter DC
>> connectivity issues/some other issues hints shoot upto GBs/node.
>>
>> So I would like to monitor hints throughput/pin point the reason for
>> hints growth on nodes.
>>
>> Kindly let us know if any one of you have such thing to monitor hints.
>>
>>
>> Thanks
>> Laxmikanth
>>
>>
>> --
>> Regards,
>> Laxmikanth
>> 99621 38051
>>
>>
>>
>


-- 
Regards,
Laxmikanth
99621 38051

Mime
View raw message