SmokePing (a network latency measurement tool) users list

Marinos Chondrogiannoglou | 4 Aug 2010 13:27

Re: Slave timeouts

Hello all again,

I'm bumping this up as I still get those timeouts and still no clue 
what's going on.. Any idea will be much appreciated

Thanks :)

Marinos

On 11/11/2009 03:01 PM, Marinos Chondrogiannoglou wrote:
>
> Hello all,
>
> We've resently moved our standalone smokeping servers to a master/slave
> setup. Everything is working fine till now exept some errors in the
> system's messages.
>
> Although the smokeping works fine and I get results from the slaves to
> the master every now and then I have the following messages (in all of
> my 3 slave servers)
>
> Nov  9 19:06:40 slave smokeping[18296]: WARNING Master said 500 read
> timeout
> Nov 10 01:38:12 slave smokeping[18297]: WARNING Master said 500 read
> timeout
> Nov 10 03:26:40 slave smokeping[18296]: WARNING Master said 500 read
> timeout
> Nov 10 07:08:12 slave smokeping[18297]: WARNING Master said 500 read
> timeout
> Nov 10 07:09:11 slave smokeping[18295]: WARNING Master said 500 read

(Continue reading)

headers

Russell Dwarshuis | 4 Aug 2010 16:23

Re: Slave timeouts

Try looking in the apache logs on your master, maybe apache is running out 
of resources or has too many sessions open.

                                           -Russell Dwarshuis

On Wed, 4 Aug 2010, Marinos Chondrogiannoglou wrote:

> Hello all again,
>
> I'm bumping this up as I still get those timeouts and still no clue
> what's going on.. Any idea will be much appreciated
>
> Thanks :)
>
> Marinos
>
> On 11/11/2009 03:01 PM, Marinos Chondrogiannoglou wrote:
>>
>> Hello all,
>>
>> We've resently moved our standalone smokeping servers to a master/slave
>> setup. Everything is working fine till now exept some errors in the
>> system's messages.
>>
>> Although the smokeping works fine and I get results from the slaves to
>> the master every now and then I have the following messages (in all of
>> my 3 slave servers)
>>
>> Nov  9 19:06:40 slave smokeping[18296]: WARNING Master said 500 read
>> timeout

(Continue reading)

headers

Marinos Chondrogiannoglou | 5 Aug 2010 08:31

Re: Slave timeouts

No such issues.. I've checked the logs and no related entries.

On 08/04/2010 05:23 PM, Russell Dwarshuis wrote:
> Try looking in the apache logs on your master, maybe apache is running
> out of resources or has too many sessions open.
>
>
> -Russell Dwarshuis
>
> On Wed, 4 Aug 2010, Marinos Chondrogiannoglou wrote:
>
>> Hello all again,
>>
>> I'm bumping this up as I still get those timeouts and still no clue
>> what's going on.. Any idea will be much appreciated
>>
>> Thanks :)
>>
>> Marinos
>>
>> On 11/11/2009 03:01 PM, Marinos Chondrogiannoglou wrote:
>>>
>>> Hello all,
>>>
>>> We've resently moved our standalone smokeping servers to a master/slave
>>> setup. Everything is working fine till now exept some errors in the
>>> system's messages.
>>>
>>> Although the smokeping works fine and I get results from the slaves to
>>> the master every now and then I have the following messages (in all of

(Continue reading)

headers

Jim Liu | 9 Aug 2010 15:39

Alerts and Email Issues

I am using smokeping 2.3.6 on Ubuntu 10.04. I have a couple of issues with alerts and sending mail. Below are the logs and configuration where the debug has no match for target but the message log shows active for someloss alert on the test host box. I do receive a someloss alert email through sendmail relaying through my exchange server when I disconnect that host. Any help on what I can look at would be appreciated.

Smokeping --debug

Calling RRDs::update(/var/lib/smokeping/Host/ukhypervp027.rrd --template uptime:loss:median:ping1:ping2:ping3:ping4:ping5:ping6:ping7:ping8:ping9:ping10:ping11:ping12:ping13:ping14:ping15:ping16:ping17:ping18:ping19:ping20 1281014525:U:0:1.5141000000e-01:1.5093000000e-01:1.5098000000e-01:1.5109000000e-01:1.5112000000e-01:1.5117000000e-01:1.5117000000e-01:1.5122000000e-01:1.5130000000e-01:1.5138000000e-01:1.5141000000e-01:1.5141000000e-01:1.5144000000e-01:1.5169000000e-01:1.5172000000e-01:1.5186000000e-01:1.5187000000e-01:1.5188000000e-01:1.5208000000e-01:1.5221000000e-01:1.5290000000e-01)

Alert "bigloss": no match for target /var/lib/smokeping/Host/ukhypervp027

Alert "someloss": no match for target /var/lib/smokeping/Host/ukhypervp027

Alert "startloss": no match for target /var/lib/smokeping/Host/ukhypervp027

Alert "rttdetect": no match for target /var/lib/smokeping/Host/ukhypervp027

Alert "hostdown": no match for target /var/lib/smokeping/Host/ukhypervp027

Alert "lossdetect": no match for target /var/lib/smokeping/Host/ukhypervp027

/var/log/Messages

Aug 4 02:16:06 vmubuntu smokeping[1691]: Starting syslog logging

Aug 4 02:16:06 vmubuntu smokeping[1696]: Smokeping version 2.003006 successfully launched.

Aug 4 02:16:06 vmubuntu smokeping[1696]: Not entering multiprocess mode for just a single probe.

Aug 4 02:16:06 vmubuntu smokeping[1696]: FPing: probing 7 targets with step 300 s and offset 42 s.

Aug 4 03:01:01 vmubuntu smokeping[1696]: Alert someloss is active for Host.ukhypervp027

Aug 4 03:06:02 vmubuntu smokeping[1696]: Alert someloss is active for Host.ukhypervp027

Aug 4 03:11:02 vmubuntu smokeping[1696]: Alert someloss is active for Host.ukhypervp027

Aug 4 03:23:38 vmubuntu smokeping[2954]: Starting syslog logging

Aug 4 04:47:03 vmubuntu smokeping[1696]: got TERM signal, terminating.

Aug 4 04:47:04 vmubuntu smokeping[3459]: Starting syslog logging

Aug 4 04:47:04 vmubuntu smokeping[3463]: Smokeping version 2.003006 successfully launched.

Aug 4 04:47:04 vmubuntu smokeping[3463]: Not entering multiprocess mode for just a single probe.

Aug 4 04:47:04 vmubuntu smokeping[3463]: FPing: probing 7 targets with step 300 s and offset 95 s.

Alerts

+bigloss

type = loss

# in percent

pattern = ==0%,==0%,==0%,==0%,>0%,>0%,>0%

comment = suddenly there is packet loss

+someloss

type = loss

# in percent

pattern = >0%,*12*,>0%,*12*,>0%

comment = loss 3 times in a row

+startloss

type = loss

# in percent

pattern = ==S,>0%,>0%,>0%

comment = loss at startup

+rttdetect

type = rtt

# in milli seconds

pattern = <10,<10,<10,<10,<10,<100,>100,>100,>100

comment = routing messed up again ?

Targets

++ukhypervp027

menu = ukhypervp027

title = ukhypervp027

host = IP address of host

alerts = bigloss,someloss,startloss,rttdetect,hostdown,lossdetect

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Willy LE ROY | 10 Aug 2010 18:02

How to change the default time window in the charts section ?

Hi

Sorry if this had been discussed before, but searching the
documentation, this mailing list and the web didn't help at all

I 'm trying to find a way to change the default time window in the
charts section, as the default (1 hour) doesn't fit well what I'm trying
to do. Basically I'd would like to have a top ten of all subsections
with a custom time frame, say one month or one year. This way I could
easily point out the nodes having long time issues, sorted from the
worst to the best. How could I go about doing this.

Also I changed the step value to 60s which suits my customer better then
the default 5 mins, but the graphs in the charts section still show 5
mins granularity (although "rrdtool info" says my rrd steps are set to
60s) - Any help concerning this ?

Thanks

headers

Jonkers Marc (ICTS | 12 Aug 2010 08:19

2 columns in Smokeping

Hi,

I saw a discussion from 2006 over this. Is it possible in the version today to display graphs in two columns?

Thx,

Marc

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Dez | 26 Aug 2010 16:23

Re: fping and tos

On 07/13/2010 06:52 PM, Pete Hoffswell wrote:
> Hello -
>
> I have installed the updated fping called fping-2.4b2_to4-ipv6  and
> upgraded my FPing.pm from svn, but I still get an error message when
> attempting to modify my configuration to use the fping tos =
> directive.
>
> fping -O works.
> path looks good for fping in config
>
> ERROR: /usr/local/smokeping/etc/config, line 194: unknown variable 'tos'
>
> Has anyone been successful in getting fping probe with tos to work?
>
>    
Are you sure that the version of FPing.pm you're using supports the "-O" 
option of FPing?

In any case, I too think that the -O option would be a  very helpful 
addition to the FPing probe (using CiscoRTT stuff can be quite problematic)

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Rob Tanner | 26 Aug 2010 20:13

Using Smokeping to measure DHCP latency

Hi,

DHCP latency does not appear to be part of the standard toolbox but after a little but of googling, I saw that UC Davis is certainly doing it. Is there a generally available, possibly open source, program that I can incorporate into Smokeping to do DHCP latency checks. Does anyone know who to contact at UC Davis to find out how they’re doing it?

Thanks,
Rob

Rob Tanner
UNIX Services Manager
Linfield College, McMinnville Oregon

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Peter Kristolaitis | 26 Aug 2010 22:40

Re: Using Smokeping to measure DHCP latency

Hi Rob;

If you're referring to this page:

http://smokeping.ucdavis.edu/smoke/cgi-bin/smokeping.cgi?target=Campus.Campus_services.Campus_MISC.Campus_DHCP-PING

then I would question what, exactly, it is that UC Davis is measuring, and how that compares to what you want to measure. That target on the UC Davis page is labeled "DHCP Server PING" -- to me, that would suggest that they're doing a simple ICMP PING to the DHCP host, rather than testing the response time of the DHCP service itself.

I'm not aware of any way to measure DHCP service latency with Smokeping, or even any plugins to do so. It would probably be possible to write a Smokeping module for it though -- one approach that comes to mind is to execute dhcping against the DHCP server and time the execution (since dhcping basically just reports a yes/no status).

- Peter

On 8/26/2010 2:13 PM, Rob Tanner wrote:

Using Smokeping to measure DHCP latencyHi,

DHCP latency does not appear to be part of the standard toolbox but after a little but of googling, I saw that UC Davis is certainly doing it. Is there a generally available, possibly open source, program that I can incorporate into Smokeping to do DHCP latency checks. Does anyone know who to contact at UC Davis to find out how they’re doing it?

Thanks,
Rob

Rob Tanner
UNIX Services Manager
Linfield College, McMinnville Oregon

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Tobias Oetiker | 27 Aug 2010 13:27

Re: fping and tos

Hi Dez,

Yesterday Dez wrote:

> On 07/13/2010 06:52 PM, Pete Hoffswell wrote:
> > Hello -
> >
> > I have installed the updated fping called fping-2.4b2_to4-ipv6  and
> > upgraded my FPing.pm from svn, but I still get an error message when
> > attempting to modify my configuration to use the fping tos =
> > directive.
> >
> > fping -O works.
> > path looks good for fping in config
> >
> > ERROR: /usr/local/smokeping/etc/config, line 194: unknown variable 'tos'
> >
> > Has anyone been successful in getting fping probe with tos to work?
> >
> >
> Are you sure that the version of FPing.pm you're using supports the "-O"
> option of FPing?
>
> In any case, I too think that the -O option would be a  very helpful
> addition to the FPing probe (using CiscoRTT stuff can be quite problematic)

look at

http://oss.oetiker.ch/smokeping/pub/trunk/smokeping-svn-snap.tar.gz

you can pull it from there ....

cheers
tobi
>
> _______________________________________________
> smokeping-users mailing list
> smokeping-users <at> lists.oetiker.ch
> https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users
>
>

--

-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi <at> oetiker.ch ++41 62 775 9902 / sb: -9900

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