[Ganglia-general] (no subject)

[FELIX M WICKS]

Does any one have a food guide on installing ganglia on centos7.  I have it 
installed but it is slow connectionsNg to /ganglia directory. Connecting to 
appache is fast

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[FELIX M WICKS]

Does any one have a food guide on installing ganglia on centos7.  I have it 
installed but it is slow connectionsNg to /ganglia directory. Connecting to 
appache is fast

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[Ganglia-general] (no subject)

[Styrk, Daryl]

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Re: [Ganglia-general] (no subject)

[Nick Satterly]

Hi Jesse,

I haven't reviewed your code in detail but I have taken the time to
consider some of your design decisions such as "default tags" and grouping
by "measurements". See my feedback / queries here...

https://github.com/hawson/monitor-core/issues/15
https://github.com/hawson/monitor-core/issues/16
https://github.com/hawson/monitor-core/issues/17

In summary, I think the integration with influxdb should make use of
existing features of ganglia before adding new, seemingly duplicate ones.
And at least initially, I personally think it should be a compile-time "opt
in" feature rather than hard-coded as it is now.

Hope my feedback has been useful and I'm happy to discuss this with you
further.

Regards,
Nick


On Tue, May 3, 2016 at 2:33 AM, Jesse Becker  wrote:

> I have been working recently on a branch to Ganglia/monitor-core that
> allows gmond to send metrics directly to an InfluxDB database, and I am
> requesting comments and feedback before submitting a formal pull request
>
> It can be found here:
>
>   https://github.com/hawson/monitor-core/tree/influxdb
>
>
> This purely a change to the gmond agent.  Other programs (e.g. gmetad,
> gmetric) and components (the web UI) are not changed.  However, a logical
> next phase could be to rework the WebUI and Gmetad to use InfluxDB as a
> backend.  Since my original post to the ganglia-developers list a few days
> ago, I've made a few minor improvements (per-metric "measurements"
> attributes, and adding influxdb metrics to the gstatus module).
>
>
> Changes are relatively isolated, a new lib/influxdb.c file was made for
> most new functionality, and hooking into gmond as part of the existing
> Ganglia_collection_group_send() function in the main gmond.c code. Thus,
> when a packet would normally be sent to another gmond, it can also be sent
> to an influxdb channel at the same time.  There are, of course, various
> other changes sprinkled about to other files, mostly to add new gmond.conf
> options.
>
> The gmond.conf documentation, and default configuration file (from 'gmond
> -t') has also been updated to cover the new configuration options.
>
> The first new option is an influxdb_send_channel stanza.  It is fairly
> simple, with three options.
>
>   influxdb_send_channel {
> host = myinfluxdb.example.com
> port = 8089
> default_tags = zone=us-east,host_class=hpc  //optional tags sent with
> each metric
>   }
>
> The "host" and "port" attributes are required, and their purpose should be
> obvious.  The "default_tags" attribute is optional.  Influxdb permits tags
> associated with each time/key/value tuple; this is how hostnames are
> stored, for example.  This attribute allows default tags to be associated
> with every metric sent, for example to identify an HPC cluster, or AWS
> zone, or other useful bit of metadata.
>
> The other change to gmond.conf is also optional, but strongly
> recommended.  Every collection_group stanza may now have an optional
> "measurement" attribute.  An example for the some of the system load
> metrics:
>
>   collection_group {
> collect_every = 20
> time_threshold = 90
> measurement = "load"  // <<<  new atttribute
> metric {
>   name = "load_one"
>   title = "One Minute Load Average"
> }
> metric {
>   name = "load_five"
>   title = "Five Minute Load Average"
> }
> [...]
>   }
>
> This attribute is used to assist InfluxDB in organizing metrics into
> groups of "measurements".  Measurements are similar in function to an SQL
> table (InfluxDB is not an SQL database, and the analogy is not perfect).
> Since most metrics in a collection group tend to be similar (all CPU stats
> are collected at the same time, network stats at another, etc), adding this
> metric at the collection_group level seems to make the most sense.  If a
> collection_group does not have a measurement attribute, the metric name
> (e.g. "load_one"), is used instead; this is not recommended.  The updated
> documentaiton for gmond.conf has more details and several examples. Note
> that adding this support did require some minor reorganization of the
> default gmond.conf file.
>
> I know of several improvements that cold be made, but believe that the
> code is fit for general review.
>
> Comments, questions and corrections are all welcome, either on the list,
> on the github URL above, on IRC, or email.
>
> --
> Jesse Becker
>
>
> --
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> Manager
> Applications Manager provides deep performance insights into multiple
> tiers of
> your business applications. It resolves application problems quickly and
> reduces your MTTR. Get your free trial!
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[Ganglia-general] (no subject)

[Jesse Becker]

I have been working recently on a branch to Ganglia/monitor-core that
allows gmond to send metrics directly to an InfluxDB database, and I am
requesting comments and feedback before submitting a formal pull request

It can be found here:

  https://github.com/hawson/monitor-core/tree/influxdb


This purely a change to the gmond agent.  Other programs (e.g. gmetad,
gmetric) and components (the web UI) are not changed.  However, a logical
next phase could be to rework the WebUI and Gmetad to use InfluxDB as a
backend.  Since my original post to the ganglia-developers list a few days
ago, I've made a few minor improvements (per-metric "measurements"
attributes, and adding influxdb metrics to the gstatus module).


Changes are relatively isolated, a new lib/influxdb.c file was made for
most new functionality, and hooking into gmond as part of the existing
Ganglia_collection_group_send() function in the main gmond.c code. Thus,
when a packet would normally be sent to another gmond, it can also be sent
to an influxdb channel at the same time.  There are, of course, various
other changes sprinkled about to other files, mostly to add new gmond.conf
options.

The gmond.conf documentation, and default configuration file (from 'gmond
-t') has also been updated to cover the new configuration options.

The first new option is an influxdb_send_channel stanza.  It is fairly
simple, with three options.

  influxdb_send_channel {
host = myinfluxdb.example.com
port = 8089
default_tags = zone=us-east,host_class=hpc  //optional tags sent with
each metric
  }

The "host" and "port" attributes are required, and their purpose should be
obvious.  The "default_tags" attribute is optional.  Influxdb permits tags
associated with each time/key/value tuple; this is how hostnames are
stored, for example.  This attribute allows default tags to be associated
with every metric sent, for example to identify an HPC cluster, or AWS
zone, or other useful bit of metadata.

The other change to gmond.conf is also optional, but strongly recommended.
Every collection_group stanza may now have an optional "measurement"
attribute.  An example for the some of the system load metrics:

  collection_group {
collect_every = 20
time_threshold = 90
measurement = "load"  // <<<  new atttribute
metric {
  name = "load_one"
  title = "One Minute Load Average"
}
metric {
  name = "load_five"
  title = "Five Minute Load Average"
}
[...]
  }

This attribute is used to assist InfluxDB in organizing metrics into groups
of "measurements".  Measurements are similar in function to an SQL table
(InfluxDB is not an SQL database, and the analogy is not perfect).  Since
most metrics in a collection group tend to be similar (all CPU stats are
collected at the same time, network stats at another, etc), adding this
metric at the collection_group level seems to make the most sense.  If a
collection_group does not have a measurement attribute, the metric name
(e.g. "load_one"), is used instead; this is not recommended.  The updated
documentaiton for gmond.conf has more details and several examples. Note
that adding this support did require some minor reorganization of the
default gmond.conf file.

I know of several improvements that cold be made, but believe that the code
is fit for general review.

Comments, questions and corrections are all welcome, either on the list, on
the github URL above, on IRC, or email.

-- 
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Re: [Ganglia-general] (no subject)

[Bernard Li]

Hi Maciej:

At this point I would just go ahead and apply to the program if you
are interested, unless you have specific questions regarding the
project for one of the mentors.

Good luck.

Cheers,

Bernard

On Wed, Mar 19, 2014 at 3:52 PM, Maciej Mazur  wrote:
> Hello,
>
> My name is Maciej Mazur.
> I would like to talk about Gsoc possibilities.
> I'm especially interested in "RRDtool data access from data analysis
> frameworks (Data Science, Statistics)" (advanced part).
>
> Thanks,
> Maciej Mazur
>
>
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[Ganglia-general] (no subject)

[Maciej Mazur]

Hello,

My name is Maciej Mazur.
I would like to talk about Gsoc possibilities.
I'm especially interested in "RRDtool data access from data analysis
frameworks (Data Science, Statistics)" (advanced part).

Thanks,
Maciej Mazur
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[Ganglia-general] (no subject)

[Krishnanand Khambadkone]

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Re: [Ganglia-general] (no subject)

[Vladimir Vuksan]

Please try out this document

http://sourceforge.net/apps/trac/ganglia/wiki/ganglia_quick_start

On Sat, 17 Dec 2011, Maciek Lasyk wrote:


On Sat, Dec 17, 2011 at 2:27 PM, Aaron Urbain  wrote:

Say you have 10 nodes.  All ten send unicast to node one.   Gmetad reaches out 
to node one.   All ten show up in web. Simple.


Not that simple, because only one shows up in the web - only this one
have generated RRD in RRD dir of gmetad.

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Re: [Ganglia-general] (no subject)

[Maciek Lasyk]

On Sat, Dec 17, 2011 at 2:27 PM, Aaron Urbain  wrote:
> Say you have 10 nodes.  All ten send unicast to node one.   Gmetad reaches 
> out to node one.   All ten show up in web. Simple.

Not that simple, because only one shows up in the web - only this one
have generated RRD in RRD dir of gmetad.

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[Ganglia-general] (no subject)

[Aaron Urbain]

Say you have 10 nodes.  All ten send unicast to node one.   Gmetad reaches out 
to node one.   All ten show up in web. Simple.  
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[Fernando Buenconsejo]

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You�ll be in shock!!! I thought that it was impossible!.
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[Lee Lee]

http://kklee0074.blogers.asia/2010/06/weight.html


  

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Re: [Ganglia-general] (no subject)

[Jesse Becker]

Perhaps you installed a 32bit version of libexpat, when you needed the
64bit version?  What is the output of "file /usr/lib/libexpat.so"?

On Fri, Jun 26, 2009 at 01:18, Mohiddin
Shaikh wrote:
> Hi,
>    im facing this problem while installing ganglia , i did ./configure it
> works fine but when i do make then im getting this error message...i try
> install ganglia version  ganglia-3.1.2..kindly suggest me anyone
>
>
> a-3.1.2.so.0 -o .libs/libganglia-3.1.2.so.0.0.0
> /usr/lib/libexpat.so: could not read symbols: File in wrong format
> collect2: ld returned 1 exit status
> make[2]: *** [libganglia.la] Error 1
> make[2]: Leaving directory `/root/Desktop/ganglia-3.1.2/lib'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/root/Desktop/ganglia-3.1.2'
> make: *** [all] Error 2
>
>
> Thanks in advance.
> Mohiddin
>
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[Mohiddin Shaikh]

Hi,
   im facing this problem while installing ganglia , i did ./configure it works 
fine but when i do make then im getting this error message...i try install 
ganglia version  ganglia-3.1.2..kindly suggest me anyone


a-3.1.2.so.0 -o .libs/libganglia-3.1.2.so.0.0.0
/usr/lib/libexpat.so: could not read symbols: File in wrong format
collect2: ld returned 1 exit status
make[2]: *** [libganglia.la] Error 1
make[2]: Leaving directory `/root/Desktop/ganglia-3.1.2/lib'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/root/Desktop/ganglia-3.1.2'
make: *** [all] Error 2


Thanks in advance.
Mohiddin
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Re: [Ganglia-general] (no subject)

[Bernard Li]

Hi Max:

On Wed, Oct 1, 2008 at 1:02 AM,  <[EMAIL PROTECTED]> wrote:

> I Just started using ganglia and am really impressed! The default setup worked
> out of the box. Really nice "plug&play". I changed the Setup from Multicast to
> Unicast, still works as expected!
>
> Now i want to add another Cluster but keep my 2pc setup.
>
> i tried the setup below, but cant seem to get pc2 to be viewed
> as part of work-cluster, it still gets rendert in mgmt-cluster.
>
> i use the latest ganglia 3.1.1.
>
> pc2 is deaf! - but that could be changed if its needed == if a 
> client->monitorhost
> push setup doesnt work with multiple clusters.
>
> id be happy to hear what i am doing wrong, or where i can find information on 
> setting
> up a multicluster ganglia setup.
>
> thanks
>  Max
>
> below - my (dream)setup (stripped down) that doesnt actually do what i 
> think it should :)
> ---
>
> pc1 = gmond, gmetad, ganglia webinterface
> gmond.conf:
> 
> cluster
> {
> name=mgmt-cluster
> }
>
> udp_send_channel {
>  host = localhost
>  port = 8649
>  ttl = 1
> }
>
> udp_recv_channel {
>  port = 8649
> }
>
> gmetad.conf:
> 
> data_source 10 "mgmt-cluster" localhost
> data_source 10 "work-cluster" localhost
>
> --
> pc2 = gmond
> gmond.conf:
> 
> cluster
> {
> name=work-cluster
> }
> udp_send_channel {
>  host = pc1
>  port = 8649
>  ttl = 1
> }

Ganglia does not partition clusters based on "name", it is actually by
"port".  So even though for your pc2, you configure the name to be
"work-cluster", the port is the same as mgmt-cluster, which is 8649.
What you need to do is change work-cluster's port to something other
than 8649 (you can use 8650, or something else, just stay away from
8651 and 8652 as those are default Ganglia gmetad ports).  You will
also need to modify your data_source line slightly by adding the port
and host, i.e.:

data_source 10 "work-cluster" pc2:8650

I am not too familiar with unicast setup, but I believe for your pc2
gmond.conf, you should change host to pc2 and port again to 8650.

This should give you the desired setup.

Hope this helps.

Cheers,

Bernard

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[precitool05]

Hello Listmembers,

I Just started using ganglia and am really impressed! The default setup worked
out of the box. Really nice "plug&play". I changed the Setup from Multicast to
Unicast, still works as expected!

Now i want to add another Cluster but keep my 2pc setup.

i tried the setup below, but cant seem to get pc2 to be viewed
as part of work-cluster, it still gets rendert in mgmt-cluster. 

i use the latest ganglia 3.1.1.

pc2 is deaf! - but that could be changed if its needed == if a 
client->monitorhost
push setup doesnt work with multiple clusters.

id be happy to hear what i am doing wrong, or where i can find information on 
setting
up a multicluster ganglia setup.

thanks
 Max

below - my (dream)setup (stripped down) that doesnt actually do what i 
think it should :)
---

pc1 = gmond, gmetad, ganglia webinterface
gmond.conf:

cluster
{
name=mgmt-cluster
}

udp_send_channel { 
  host = localhost
  port = 8649 
  ttl = 1 
} 

udp_recv_channel {
  port = 8649
}

gmetad.conf:

data_source 10 "mgmt-cluster" localhost
data_source 10 "work-cluster" localhost

--
pc2 = gmond
gmond.conf:

cluster
{
name=work-cluster
}
udp_send_channel { 
  host = pc1
  port = 8649 
  ttl = 1 
} 

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Re: [Ganglia-general] (no subject)

[miguel . sanders]

1) I'm still trying to figure this one out (just started with ganglia a
week ago :-) )
2) Like I stated in the previous message, this is related to the total
number of virtual CPUs allocated to the LPAR.
   Check out the 'Online Virtual CPUs' of lparstat -i (if you are using
AIX)
3) At the moment, I am still figuring this out.
   I am currently digging deeper into the memory allocation/usage.
(which is very complex in AIX) 


Miguel SANDERS
ArcelorMittal Gent

UNIX System Administrator | SAP Infrastructure Group
John Kennedylaan 51, B-9042 Gent

T +32 9 347 3538 | F +32 9 347 4901 | M +32478 805 023
E [EMAIL PROTECTED]
www.arcelormittal.com/gent


-Oorspronkelijk bericht-
Van: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Namens kmet
Gazeta.pl
Verzonden: dinsdag 17 juni 2008 14:41
Aan: ganglia-general@lists.sourceforge.net
Onderwerp: [Ganglia-general] (no subject)

We have ganglia on IBM p55 (2x2 CPU) installed (8 lpars, aix5.3). In
ganglia this machine is defined as  ganglia cluster, lpars are nodes.
It works well, but I have doubts about its usefulness on lpars,
especially in CPU monitoring.

Metrics like  cpu_[user|wait|system|idle] and graph "CPU last our" are
wrong both in shared and dedicated environment.
I can understand why it's wrong in shared CPU. But I don't know why is
that with dedicated CPU ?
I can see different values with ganglia and nmon.

I.e:
LPAR1 : 2 dedicated CPU, usage around 30% of (2) CPU for 2 hours
(topas).

Ganglia (CPU last hour) shows : 15 %
nmon (physical avg) : 25 %  - which is true I think .


1. Why is that ?
2. "CPU total" shows 32 . I think it shows 8 (lpar) x 4, but this is not
the real number of CPU. Can I change it ?
3. Which metrics do you monitor in shared CPU environment ? Which are
reliable ?

regards


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[Ganglia-general] (no subject)

[kmet Gazeta.pl]

We have ganglia on IBM p55 (2x2 CPU) installed (8 lpars, aix5.3). In
ganglia this machine is defined as
 ganglia cluster, lpars are nodes.
It works well, but I have doubts about its usefulness on lpars,
especially in CPU monitoring.

Metrics like  cpu_[user|wait|system|idle] and graph "CPU last our" are
wrong both in shared and dedicated environment.
I can understand why it's wrong in shared CPU. But I don't know why is
that with dedicated CPU ?
I can see different values with ganglia and nmon.

I.e:
LPAR1 : 2 dedicated CPU, usage around 30% of (2) CPU for 2 hours  (topas).

Ganglia (CPU last hour) shows : 15 %
nmon (physical avg) : 25 %  - which is true I think .


1. Why is that ?
2. "CPU total" shows 32 . I think it shows 8 (lpar) x 4, but this is
not the real number of CPU. Can I change it ?
3. Which metrics do you monitor in shared CPU environment ? Which are reliable ?

regards

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[Ganglia-general] (no subject)

[周游弋]

Hi everyone.

 

I have been using ganglia for a while, but recently I found a problem. If
one station has multiple IP addresses, gmetad will compute them in
duplication. E.g. One station has 4 network interfaces, thus 4 IP addresses,
and if we add all these 4 IPs into gmetad’s configuration file (for some
reason, I have to) , they will be treated as 4 independent stations. Then
statistics turns out to be wrong as 1 CPU becomes 4.

 

How can I avoid this duplicate computation? Could you help me, please?

 

Thank you very much.

 

==

Best regards.

Joel (Youyi) Zhou

Fudan University Computer Science Department.

上海市杨浦区邯郸路220号复旦大学计算机系楼331室

Email: 072021117_at_fudan.edu.cn  

 

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[Ganglia-general] (no subject)

[sean williams]

Really easy question, how can I change the display of
the "monthy statistics" graph to show calendar dates
as opposed to week #'s?


  

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Re: [Ganglia-general] (no subject)

[Steven Wagner]

kvm_open() is returning a permission denied error.  Make sure you're 
running gmond as root.  You should get a slightly different set of errors 
if you are struck by the mighty mismatched-compiler problem.  Just in case, 
check your gmond ...


file /path/to/your/gmond

The output should look like this:

/usr/sbin/gmond: ELF 64-bit MSB executable SPARCV9 Version 1, 
dynamically linked, not stripped


Unfortunately there are some stats which I was only able to get effectively 
via kvm_* calls (which means Solaris gmond won't run if you run it as Joe 
User), which require that you use the libkvm (and thus everything else in 
linking the monitoring core) that matches the running kernel.  libkstat is 
agnostic, and works on any Solaris it's implemented on (which may only be 
2.6.x and above).   It's been a while so I don't remember if the data was 
*in* the kstat interface but there were problems getting it out with the 
proper frequency, or if the data just plain wasn't there.


kstat is obviously the way to go, as it's newer and has a nicer, fuzzier 
set of function calls ... but there's nothing quite like getting the data 
from the horse's mouth (er, kernel's symbol table) ...


[EMAIL PROTECTED] wrote:

Hi everybody,

I have two questions :

 - I encounter the already known problem (segmentation fault) on a Solaris
2.8
   with gmond. I have compiled this executable on this machine, so I don't
think this a problem  of 32-bits/64-bits kernel compatibility.

Here is the log :
/etc/gmond.conf configuration
pthread_attr_init
creating cluster hash for 1024 nodes
hash_create size = 1024
hash->size is 1031
gmond initialized cluster hash
Using interface ce0
mcast listening on 239.2.11.71 8649
XML listening on port 8649
listening thread(s) have been started
listening thread(s) have been started
cleanup thread has been started
multicasting on channel 239.2.11.71 8649
gmond: cannot open /dev/kmem
kvm_open: Permission denied
 *** WARNING  kvm_open() failed.  prepare for a segfault ... ***
kvm_nlist: Bad address
Lookup up kstat:  km (unix?)='unix', ks (system_misc?)='system_misc',kn
(resulting metric?)='ncpus'
ncpus: kc is 37f10
ncpus: Just did kstat_lookup().
ncpus: Looked up.
ncpus: Kstat data type:  2, Value returned: 4, 4 4 4
ncpus: Kernel close.  Val returned: 4
metric_init: Assigning cpu_num value (4) to ncpus



2) Concerning the Web Front-end, it is written in the manual that
it uses TemplatePower. I have retrieved the class.TemplatePower.inc.php
but when I browse some php-page I get messages like

Cannot instantiate non-existent class: templatepower in
/usr/local/apache-ssl/htdocs/gmetad-webfrontend/meta_view.php on line 3

In fact there is no include directive linked to the
class.TemplatePower.inc.php.

Do I have to mofify these files by hand ?


Thank you in advance of any hint on these topics.




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[Ganglia-general] (no subject)

[Thierry . Plouzen]

Hi everybody,

I have two questions :

 - I encounter the already known problem (segmentation fault) on a Solaris
2.8
   with gmond. I have compiled this executable on this machine, so I don't
think this a problem  of 32-bits/64-bits kernel compatibility.

Here is the log :
/etc/gmond.conf configuration
pthread_attr_init
creating cluster hash for 1024 nodes
hash_create size = 1024
hash->size is 1031
gmond initialized cluster hash
Using interface ce0
mcast listening on 239.2.11.71 8649
XML listening on port 8649
listening thread(s) have been started
listening thread(s) have been started
cleanup thread has been started
multicasting on channel 239.2.11.71 8649
gmond: cannot open /dev/kmem
kvm_open: Permission denied
 *** WARNING  kvm_open() failed.  prepare for a segfault ... ***
kvm_nlist: Bad address
Lookup up kstat:  km (unix?)='unix', ks (system_misc?)='system_misc',kn
(resulting metric?)='ncpus'
ncpus: kc is 37f10
ncpus: Just did kstat_lookup().
ncpus: Looked up.
ncpus: Kstat data type:  2, Value returned: 4, 4 4 4
ncpus: Kernel close.  Val returned: 4
metric_init: Assigning cpu_num value (4) to ncpus



2) Concerning the Web Front-end, it is written in the manual that
it uses TemplatePower. I have retrieved the class.TemplatePower.inc.php
but when I browse some php-page I get messages like

Cannot instantiate non-existent class: templatepower in
/usr/local/apache-ssl/htdocs/gmetad-webfrontend/meta_view.php on line 3

In fact there is no include directive linked to the
class.TemplatePower.inc.php.

Do I have to mofify these files by hand ?


Thank you in advance of any hint on these topics.