From kaushalshriyan at gmail.com  Fri Jul  8 12:01:46 2016
From: kaushalshriyan at gmail.com (Kaushal Shriyan)
Date: Fri, 8 Jul 2016 16:31:46 +0530
Subject: [Iftop-users] Debugging MySQL Replication lag using iftop utility
Message-ID: <CAD7Ssm9QjffinoN+-X1M5rfWo8ppv5LKwjDt31-qt9TtMN9wiw@mail.gmail.com>

Hi,

Is there a way to monitor bandwidth usage using iftop? I am currently
debugging a *MySQL Master Slave Replication lag issue*.

Master Server IP :- 192.168.1.10
Slave Server IP :- 192.168.1.11

I am interested in measuring the network traffic between Master and Slave
at a particular period. For example the lag happens only during late night
hours around 3:00 am till 4:00 am. Can iftop network monitoring utility be
run in background or daemon mode or invoked by cron during a specific time
period to see if the network is a bottleneck for the *Slave Lag*. Also can
i filter source ip which is 192.168.1.10 (IP of the Master MySQL Server)?

Any help will be highly appreciable.

Regards,

Kaushal
-------------- next part --------------
An HTML attachment was scrubbed...
URL: </pipermail/attachments/20160708/2572ddbe/attachment-0001.html>

From ssb at umn.edu  Fri Jul  8 17:01:11 2016
From: ssb at umn.edu (Scott Bertilson)
Date: Fri, 8 Jul 2016 11:01:11 -0500
Subject: [Iftop-users] Debugging MySQL Replication lag using iftop
	utility
In-Reply-To: <CAD7Ssm9QjffinoN+-X1M5rfWo8ppv5LKwjDt31-qt9TtMN9wiw@mail.gmail.com>
References: <CAD7Ssm9QjffinoN+-X1M5rfWo8ppv5LKwjDt31-qt9TtMN9wiw@mail.gmail.com>
Message-ID: <CAHk3O4rmTRbMOvdTFqFKQp+PTXMOg=-hf_UPOWEcMrBA8yrupw@mail.gmail.com>

It isn't really designed for monitoring in the background in the sense that
the current code base can output as curses-free text (-t), but it isn't CSV
or any other easily parse-able format.

You can easily filter what it monitors using the -f option (tcpdump/pcap
style).

On Fri, Jul 8, 2016 at 6:01 AM, Kaushal Shriyan <kaushalshriyan at gmail.com>
wrote:

> Hi,
>
> Is there a way to monitor bandwidth usage using iftop? I am currently
> debugging a *MySQL Master Slave Replication lag issue*.
>
> Master Server IP :- 192.168.1.10
> Slave Server IP :- 192.168.1.11
>
> I am interested in measuring the network traffic between Master and Slave
> at a particular period. For example the lag happens only during late night
> hours around 3:00 am till 4:00 am. Can iftop network monitoring utility be
> run in background or daemon mode or invoked by cron during a specific time
> period to see if the network is a bottleneck for the *Slave Lag*. Also
> can i filter source ip which is 192.168.1.10 (IP of the Master MySQL
> Server)?
>
> Any help will be highly appreciable.
>
> Regards,
>
> Kaushal
>
>
>
> _______________________________________________
> iftop-users mailing list
> iftop-users at lists.beasts.org
> http://lists.beasts.org/mailman/listinfo/iftop-users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: </pipermail/attachments/20160708/02f29148/attachment.html>