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 <rahul.xavier.si...@gmail.com > > 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? >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org >> For additional commands, e-mail: user-h...@cassandra.apache.org >> >> >
