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From Jason Wee <peich...@gmail.com>
Subject Re: How to measure data transfer between data centers?
Date Thu, 05 Dec 2013 07:17:39 GMT
Hi,

Will it be simpler to just measure the network interface of the node
instead?

/Jason


On Thu, Dec 5, 2013 at 10:57 AM, Jacob Rhoden <jacob.rhoden@me.com> wrote:

>
>
> http://unix.stackexchange.com/questions/41765/traffic-stats-per-network-port
>
> ______________________________
> Sent from iPhone
>
> On 5 Dec 2013, at 5:44 am, Tom van den Berge <tom@drillster.com> wrote:
>
> Hi Chris,
>
> I think streaming is used for repair tasks, bulk loading and that kind of
> things, but not for regular replication traffic.
>
> I think you're right that I should look into network tools. I don't think
> cassandra can supply this information.
>
> Thanks,
> Tom
>
>
> On Wed, Dec 4, 2013 at 6:08 PM, Chris Burroughs <chris.burroughs@gmail.com
> > wrote:
>
>> https://wiki.apache.org/cassandra/Metrics has per node Streaming metrics
>> that include total bytes/in out.  That is only a small bit of what you want
>> though.
>>
>> For total DC bandwidth it might be more straightforward to measure this
>> at the router/switch/fancy-network-gear level.
>>
>>
>> On 12/03/2013 06:25 AM, Tom van den Berge wrote:
>>
>>> Is there a way to know how much data is transferred between two nodes, or
>>> more specifically, between two data centers?
>>>
>>> I'm especially interested in how much data is being replicated from one
>>> data center to another, to know how much of the available bandwidth is
>>> used.
>>>
>>>
>>> Thanks,
>>> Tom
>>>
>>>
>>
>
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