how to monitor switches and increase the polling time

6 messages in this thread

list Pankaj Dorlikar · Sun, 16 May 2010 01:44:10 +0530 ·

Hi,
 since we are monitoring ober 300 servers at a time in a custer, we want to
know and analyser the network traffic in ethernet and infiniband switch .how
we can monitor it using xymon system monitoring.os is rhel 5.2 and xymon
version is 4.2.2
Practical problem happening is that some of the nodes reboots but xymon
doesnt show it. it may be because that happens in betwwen the polling period
of the server. how to overcome this issue?same thing happens for disk and
ncpu and external tests also that it does not identify and show these
problems as it must be occuring in betwwn polling period .How to make it
fast as ganglia

-- 
Pankaj V. Dorlikar

list Maik Heinelt · Sun, 16 May 2010 08:41:01 +0900 ·

I monitor our switches, and routers using devmon. You then can get all interesting data via SNMP, which works very well.
You then can see traffic, vlan settings, error and much more about your network-hardware.
It works like a charm in our Xymon 4.2.3.

Maik

▸ quoted from Pankaj Dorlikar


On 05/16/2010 05:14 AM, pankaj dorlikar wrote:

Hi,
 since we are monitoring ober 300 servers at a time in a custer, we want to know and analyser the network traffic in ethernet and infiniband switch .how we can monitor it using xymon system monitoring.os is rhel 5.2 and xymon version is 4.2.2
Practical problem happening is that some of the nodes reboots but xymon doesnt show it. it may be because that happens in betwwen the polling period of the server. how to overcome this issue?same thing happens for disk and ncpu and external tests also that it does not identify and show these problems as it must be occuring in betwwn polling period .How to make it fast as ganglia

-- 
Pankaj V. Dorlikar

list Pankaj Dorlikar · Sun, 16 May 2010 15:27:29 +0530 ·

thanks maik...

▸ quoted from Maik Heinelt


On Sun, May 16, 2010 at 5:11 AM, Maik Heinelt <user-4ab5eb34adb2@xymon.invalid> wrote:

I monitor our switches, and routers using devmon. You then can get all
interesting data via SNMP, which works very well.
You then can see traffic, vlan settings, error and much more about your
network-hardware.
It works like a charm in our Xymon 4.2.3.

Maik


On 05/16/2010 05:14 AM, pankaj dorlikar wrote:

Hi,


1) since we are monitoring ober 300 servers at a time in a custer, we want

▸ quoted from Maik Heinelt

to know and analyser the network traffic in ethernet and infiniband switch
.how we can monitor it using xymon system monitoring.os is rhel 5.2 and
xymon version is 4.2.2

2)Practical problem happening is that some of the nodes reboots but xymon

▸ quoted from Maik Heinelt

doesnt show it. it may be because that happens in betwwen the polling period
of the server. how to overcome this issue?same thing happens for disk and
ncpu and external tests also that it does not identify and show these
problems as it must be occuring in betwwn polling period .How to make it
fast as ganglia

--
Pankaj V. Dorlikar

--


Pankaj V. Dorlikar

list Pankaj Dorlikar · Sun, 16 May 2010 16:42:28 +0530 ·

hi,
what can be done for 2 nd query?

---------- Forwarded message ----------

▸ quoted from Pankaj Dorlikar

From: pankaj dorlikar <user-93d3572686c4@xymon.invalid>
Date: Sun, May 16, 2010 at 3:27 PM
Subject: Re: [hobbit] how to monitor switches and increase the polling time
To: user-ae9b8668bcde@xymon.invalid

thanks maik...

On Sun, May 16, 2010 at 5:11 AM, Maik Heinelt <user-4ab5eb34adb2@xymon.invalid> wrote:

I monitor our switches, and routers using devmon. You then can get all
interesting data via SNMP, which works very well.
You then can see traffic, vlan settings, error and much more about your
network-hardware.
It works like a charm in our Xymon 4.2.3.

Maik


On 05/16/2010 05:14 AM, pankaj dorlikar wrote:

Hi,
1) since we are monitoring ober 300 servers at a time in a custer, we want
to know and analyser the network traffic in ethernet and infiniband switch
.how we can monitor it using xymon system monitoring.os is rhel 5.2 and
xymon version is 4.2.2

2)Practical problem happening is that some of the nodes reboots but xymon

doesnt show it. it may be because that happens in betwwen the polling period
of the server. how to overcome this issue?same thing happens for disk and
ncpu and external tests also that it does not identify and show these
problems as it must be occuring in betwwn polling period .How to make it
fast as ganglia

--
Pankaj V. Dorlikar

-- 
Pankaj V. Dorlikar


-- 
Pankaj V. Dorlikar

list Xymon User in Richmond · Sun, 16 May 2010 14:58:03 -0400 ·

▸ quoted from Pankaj Dorlikar

On Sun, May 16, 2010 07:12, pankaj dorlikar wrote:

hi, what can be done for 2 nd query?

2)Practical problem happening is that some of the nodes reboots but
xymon

doesnt show it. it may be because that happens in betwwen the polling
 period of the server. how to overcome this issue?same thing happens
for disk and ncpu and external tests also that it does not identify
and show these problems as it must be occuring in betwwn polling
period .How to make it fast as ganglia

Are the nodes in this case servers?  The hobbit/xymon client will turn the
cpu test yellow for an hour after a reboot.  Are you not running the
client?  You can tweak things to shorten the polling period and do tests
in parallel, but you'll probably quickly hit scaling issues on the Xymon
server.

list Maik Heinelt · Mon, 17 May 2010 11:51:00 +0900 ·

2nd case...
Well, even if a server reboot between the polling time, Xymon should 
notice it.
In case of a Linux/Unix server, the uptime, which you can see at the CPU 
data will change and will show you an alert.
So increasing the polling time, is not really necessary, I think.

If you wanna get noticed of the behavior, you might should add an alert, 
to get an email/SMS, if a machine rebooted.

Maik

▸ quoted from Pankaj Dorlikar



On 2010/05/16 20:12, pankaj dorlikar wrote:

hi,
what can be done for 2 nd query?

---------- Forwarded message ----------
From: *pankaj dorlikar* <user-93d3572686c4@xymon.invalid 
Date: Sun, May 16, 2010 at 3:27 PM
Subject: Re: [hobbit] how to monitor switches and increase the polling 
time


To: user-ae9b8668bcde@xymon.invalid <mailto:user-ae9b8668bcde@xymon.invalid>

▸ quoted from Pankaj Dorlikar



thanks maik...

On Sun, May 16, 2010 at 5:11 AM, Maik Heinelt <user-4ab5eb34adb2@xymon.invalid 
<mailto:user-4ab5eb34adb2@xymon.invalid>> wrote:

    I monitor our switches, and routers using devmon. You then can get
    all interesting data via SNMP, which works very well.
    You then can see traffic, vlan settings, error and much more about
    your network-hardware.
    It works like a charm in our Xymon 4.2.3.

    Maik


    On 05/16/2010 05:14 AM, pankaj dorlikar wrote:

        Hi,
        1) since we are monitoring ober 300 servers at a time in a
        custer, we want to know and analyser the network traffic in
        ethernet and infiniband switch .how we can monitor it using
        xymon system monitoring.os is rhel 5.2 and xymon version is 4.2.2

        2)Practical problem happening is that some of the nodes
        reboots but xymon doesnt show it. it may be because that
        happens in betwwen the polling period of the server. how to
        overcome this issue?same thing happens for disk and ncpu and
        external tests also that it does not identify and show these
        problems as it must be occuring in betwwn polling period .How
        to make it fast as ganglia

        -- 
        Pankaj V. Dorlikar


-- 
Pankaj V. Dorlikar


-- 
Pankaj V. Dorlikar

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how to monitor switches and increase the polling time