Mailing List Archive

One way would be to run ntop on the server, that way you
can get web based graphs and all kinds of nifty traffic stats.

http://freshmeat.net/projects/ntop/

Rob


>
> Hi, every body,
>
> How are you?
>
> I want to know the each rate of traffic sent to realserver by
> director.
> How can I get them?
>
> If you have any idea for this, please let me know.
> Thank you.
>
> Best regards.
> Zhao.
>
>
>
> _______________________________________________
> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> Send requests to lvs-users-request@LinuxVirtualServer.org
> or go to http://www.in-addr.de/mailman/listinfo/lvs-users
>

Two methods. Maybe not so good.

1. Tcpdump

One is using the Tcpdump to capture the workload to the realservers. For
this method, I think you need to write a small program to analyze the
trace. One problem about this problem is that when workload is very high
at the dispatcher, tcpdump begin to lost packets.

2. Kernel programming

The other is add a counter in the destion table in include/net/ip_vs.h,
the structure is named 'destination'. and increase it when you receive a
request from out side. This can be done in file net/ipv4/ip_vs.c, the
function name is ip_vs_schedule(), in this function, there are codes
select server from the list and the selected server is returned. It is
a pointer of 'destination' type, the variable name is 'dest'. You can
increase the counter here.

The output of the information can be done in the
ip_vs_bind_scheduler(); when you
want to read the result, call the 'ipvsadm -E ....' then you can have the
result.

The code should not more than 50 lines.

After these have been done, recompile the kernel. After install the

new kernel then you can enjoy your results.

Good lucky.

Comments are welcome to my method.




Wang Hiaguang




On Thu, 22 Mar 2001, hotman wrote:

> Hi, every body,
>
> How are you?
>
> I want to know the each rate of traffic sent to realserver by
> director.
> How can I get them?
>
> If you have any idea for this, please let me know.
> Thank you.
>
> Best regards.
> Zhao.
>
>
>
> _______________________________________________
> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> Send requests to lvs-users-request@LinuxVirtualServer.org
> or go to http://www.in-addr.de/mailman/listinfo/lvs-users
>

Hi,

We added some statistics in ipvs 0.2.6, the stats info can be accessed
through the /proc/net/ip_vs_stats. It can be used to get traffic rate of
each server. However, 0.2.6 has problems, we will release 0.2.7 soon.

We will finally back port the stats feature to the ipvs code for kernel
2.2.

Thanks,

Wensong


On Thu, 22 Mar 2001, Wang Haiguang wrote:

>
> Two methods. Maybe not so good.
>
> 1. Tcpdump
>
> One is using the Tcpdump to capture the workload to the realservers. For
> this method, I think you need to write a small program to analyze the
> trace. One problem about this problem is that when workload is very high
> at the dispatcher, tcpdump begin to lost packets.
>
> 2. Kernel programming
>
> The other is add a counter in the destion table in include/net/ip_vs.h,
> the structure is named 'destination'. and increase it when you receive a
> request from out side. This can be done in file net/ipv4/ip_vs.c, the
> function name is ip_vs_schedule(), in this function, there are codes
> select server from the list and the selected server is returned. It is
> a pointer of 'destination' type, the variable name is 'dest'. You can
> increase the counter here.
>
> The output of the information can be done in the
> ip_vs_bind_scheduler(); when you
> want to read the result, call the 'ipvsadm -E ....' then you can have the
> result.
>
> The code should not more than 50 lines.
>
> After these have been done, recompile the kernel. After install the
>
> new kernel then you can enjoy your results.
>
> Good lucky.
>
> Comments are welcome to my method.
>
>
>
>
> Wang Hiaguang
>
>
>
>
> On Thu, 22 Mar 2001, hotman wrote:
>
> > Hi, every body,
> >
> > How are you?
> >
> > I want to know the each rate of traffic sent to realserver by
> > director.
> > How can I get them?
> >
> > If you have any idea for this, please let me know.
> > Thank you.
> >
> > Best regards.
> > Zhao.
> >
> >
> >
> > _______________________________________________
> > LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> > Send requests to lvs-users-request@LinuxVirtualServer.org
> > or go to http://www.in-addr.de/mailman/listinfo/lvs-users
> >
>
>
> _______________________________________________
> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> Send requests to lvs-users-request@LinuxVirtualServer.org
> or go to http://www.in-addr.de/mailman/listinfo/lvs-users
>

I like the idea of having the data in /proc/net/ip_vs_stats.

Right now I collect a variety of counter data with ipchains accounting and
from /proc/net/ip_masq/vs_stat. I then parse through it and make it
available via ucd-snmp. More glue scripts and RRD give me rates. Works for
me and wasn't too hard to set up.

thornton


On Thu, 22 Mar 2001, Wensong Zhang wrote:

>
>
> Hi,
>
> We added some statistics in ipvs 0.2.6, the stats info can be accessed
> through the /proc/net/ip_vs_stats. It can be used to get traffic rate of
> each server. However, 0.2.6 has problems, we will release 0.2.7 soon.
>
> We will finally back port the stats feature to the ipvs code for kernel
> 2.2.
>
> Thanks,
>
> Wensong
>
>
> On Thu, 22 Mar 2001, Wang Haiguang wrote:
>
> >
> > Two methods. Maybe not so good.
> >
> > 1. Tcpdump
> >
> > One is using the Tcpdump to capture the workload to the realservers. For
> > this method, I think you need to write a small program to analyze the
> > trace. One problem about this problem is that when workload is very high
> > at the dispatcher, tcpdump begin to lost packets.
> >
> > 2. Kernel programming
> >
> > The other is add a counter in the destion table in include/net/ip_vs.h,
> > the structure is named 'destination'. and increase it when you receive a
> > request from out side. This can be done in file net/ipv4/ip_vs.c, the
> > function name is ip_vs_schedule(), in this function, there are codes
> > select server from the list and the selected server is returned. It is
> > a pointer of 'destination' type, the variable name is 'dest'. You can
> > increase the counter here.
> >
> > The output of the information can be done in the
> > ip_vs_bind_scheduler(); when you
> > want to read the result, call the 'ipvsadm -E ....' then you can have the
> > result.
> >
> > The code should not more than 50 lines.
> >
> > After these have been done, recompile the kernel. After install the
> >
> > new kernel then you can enjoy your results.
> >
> > Good lucky.
> >
> > Comments are welcome to my method.
> >
> >
> >
> >
> > Wang Hiaguang
> >
> >
> >
> >
> > On Thu, 22 Mar 2001, hotman wrote:
> >
> > > Hi, every body,
> > >
> > > How are you?
> > >
> > > I want to know the each rate of traffic sent to realserver by
> > > director.
> > > How can I get them?
> > >
> > > If you have any idea for this, please let me know.
> > > Thank you.
> > >
> > > Best regards.
> > > Zhao.
> > >
> > >
> > >
> > > _______________________________________________
> > > LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> > > Send requests to lvs-users-request@LinuxVirtualServer.org
> > > or go to http://www.in-addr.de/mailman/listinfo/lvs-users
> > >
> >
> >
> > _______________________________________________
> > LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> > Send requests to lvs-users-request@LinuxVirtualServer.org
> > or go to http://www.in-addr.de/mailman/listinfo/lvs-users
> >
>
>
> _______________________________________________
> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> Send requests to lvs-users-request@LinuxVirtualServer.org
> or go to http://www.in-addr.de/mailman/listinfo/lvs-users
>