You could also run tcpdump to inspect the streams.
Dinesh
On Thursday, August 16, 2018, 1:11:47 PM PDT, Elliott Sims
wrote:
Since this is cross-node traffic, "nodetool netstats" during the high-traffic
period should give you a better idea of what's being sent.
On Thu, Aug 16, 2018
Since this is cross-node traffic, "nodetool netstats" during the
high-traffic period should give you a better idea of what's being sent.
On Thu, Aug 16, 2018 at 2:34 AM, Behnam B.Marandi <
behnam.b.mara...@gmail.com> wrote:
> In case of cronjobs, there is no jobs for that time period and I can
In case of cronjobs, there is no jobs for that time period and I can see
affect of jobs like backups and repairs but traffic that they cause is not
comparable. Like 800MB comparing to 2GB. And for this case it is all
outbound network on all 3 cluster nodes.
On Thu, Aug 16, 2018 at 5:16 PM
Since it is predictable, can you check the logs during that period? What do
they say? Do you have a cron running on those hosts? Do all the nodes
experience this issue?
Dinesh
On Thursday, August 16, 2018, 12:02:55 AM PDT, Behnam B.Marandi
wrote:
Actually I did. It seems this is a
Actually I did. It seems this is a cross node traffic from one node to port
7000 (storage_port) of the other node.
On Sun, Aug 12, 2018 at 2:44 PM Elliott Sims wrote:
> 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
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
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.
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)
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
