Since it's at a consistent time, maybe just look at it with iftop to see
where the traffic's going and what port it's coming from?
On Fri, Aug 10, 2018 at 1:48 AM, Behnam B.Marandi <
behnam.b.mara...@gmail.com> wrote:
> I don't have any external process or planed repair in that time period.
> In case of network, I can see outbound network on Cassandra node network
> interface but couldn't find any way to check the VPC network to make sure
> it is not going out of network. Maybe the only way is analysing VPC Flow
> Log.
> B.
>
> On Tue, Aug 7, 2018 at 11:23 PM, Rahul Singh > wrote:
>
>> Are you sure you don’t have an outside process that is doing an export ,
>> Spark job, non AWS managed backup process ?
>>
>> Is this network out from Cassandra or from the network?
>>
>>
>> Rahul
>> On Aug 7, 2018, 4:09 AM -0400, Behnam B.Marandi , wrote:
>>
>> Hi,
>> I have a 3 node Cassandra cluster (version 3.11.1) on m4.xlarge EC2
>> instances with separate EBS volumes for root (gp2), data (gp2) and
>> commitlog (io1).
>> I get daily outbound traffic at a certain time everyday. As you can see
>> in the attached screenshot, whiile my normal networkl oad hardly meets
>> 200MB, this outbound (orange) spikes up to 2GB while inbound (purple) is
>> less than 800MB.
>> There is no repair or backup process giong on in that time window, so I
>> am wondering where to look. Any idea?
>>
>>
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>
