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gandalf
Developer
Joined: 02 Dec 2004
Posts: 12275
Location: Muenster, Germany
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 Posted: Wed Mar 08, 2006 2:28 pm Post subject: Analyzing Poller Performance from DEBUG Log |
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Suppose you're running into poller timing problems. You will want to track this down, perhaps to a single host. Information can be taken from log/cacti.log when running in DEBUG mode. But for more than a few hosts, this will be tedious.
So I started writing some perl code to parse cacti.log. But then I changed my mind and I re-wrote this using php. The code is mainly based on host.php. For embedding this into cacti, I tried the plugin-arch of cigamit, but to my shame I failed (perhaps I made too many patches already? Or the svn code is not compatible to the latest plugin arch?). So I made another patch.
Installing
The code is mainly one single module called poller-perf.php to be put into main cacti directory. Apart from this, there are only two required changes:
include/config_arrays.php: | Code: | $user_auth_realm_filenames: add a line reading
"poller-perf.php" => 8
at the end of the array |
lib/functions.php: | Code: | function draw_navigation_text()
array $nav: add a line reading
"poller-perf.php:" => array("title" => "Poller Performance", "mapping" => "index.php:", "url" => "poller-perf.php", "level" => "1"),
at the end of the array |
You may as well use the attached patch. Download this to cacti main directory and install running | Code: | | patch -p1 < poller-perf.patch |
This patch is based on current 0.8.6h svn branch, so it may fail on other versions.
Usage
Please clear your log/cacti.log file to reduce runtime. This is strongly recommended. Then switch to DEBUG mode (See: Settings -> Logging Level) and wait for at least one polling cycle. Switch over to your browser and enter | Code: | | http://localhost/cacti/poller-perf.php |
assuming http://localhost/cacti/ points to your current cacti directory. Depending on the size of log/cacti.log it may take a little time for the display to come up.
General usage is mostly like the Devices display. Please find a screenshot attached.
Poller Runs including Statistics
This many poller runs with timing data were found in log/cacti.log. Waiting for another polling cycle in DEBUG mode will add 1 to that number
Total Runs
This many total poller runs were found. If this exceeds the above value, there was output from poller runs not using DEBUG mode. These runs are skipped
Column Descriptions
Last Poller Start
Timestamp of the first record belonging to that host taken from last poller run
Last Poller End
Timestamp of the last record belonging to that host taken from last poller run
Both timestamp use "seconds" resolution only. So data is exact only to that level of accuracy. To avoid meaningless values for the following calculations, the time difference is caclculated using (end - start) + 0.5. Please take this into account when analyzing data.
#DS Total
Number of all datasources for that host (excluding ERROR/WARNING messages) for ALL poller runs
Duration Total
Sum of all durations calculated using (end - start) + 0.5
#DS per run
"#DS Total" divided by number of "Poller Runs including Statistics"
Duration per run
"Duration Total" divided by number of "Poller Runs including Statistics"
Duration per DS
"Duration Total" divided by number of "#DS Total"
Hope this helps discovering unresponsive hosts or performance problems during data gathering.
AS ALWAYS: Use this at your own risk
happy cactiing
Reinhard
| Description: |
| Output of poller-perf.php |
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| Filesize: |
70.6 KB |
| Viewed: |
10569 Time(s) |
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| Description: |
The patch
Install using
patch -p1 < poller-php.patch
(option: minus p one) |
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Download |
| Filename: |
poller-perf.patch |
| Filesize: |
10.9 KB |
| Downloaded: |
570 Time(s) |
| Description: |
The poller-perf.php code
Use this, if patch fails but remember to change include/config_arrays.php and
lib/functions.php
as described in this topic |
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Download |
| Filename: |
poller-perf.php.gz |
| Filesize: |
3.03 KB |
| Downloaded: |
319 Time(s) |
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Howie
Cacti Guru User
Joined: 16 Sep 2004
Posts: 2162
Location: United Kingdom
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gandalf
Developer
Joined: 02 Dec 2004
Posts: 12275
Location: Muenster, Germany
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| Posted: Sat Mar 11, 2006 3:25 pm Post subject: |
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Wow, thank you Howie for your assistance. I suppose it is time (even for me) to dig through that plugin arch.
But I used to run the latest svn code and I haven't get this working til now. Perhaps I'll try to jump into current 0.9.0 trunk to learn the new plungin arch from scratch?
Reinhard
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gandalf
Developer
Joined: 02 Dec 2004
Posts: 12275
Location: Muenster, Germany
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| Posted: Sun Mar 12, 2006 2:52 pm Post subject: |
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Howie,
again many thanks for your assistance. I'm now running a standard cacti-0.8.6h in parallel with current svn and was able to implement the plugin arch without any problems (great work, Jimmy!).
So I was able to verify the plugin and posted this as a beta plugin to http://cactiusers.org/forums/viewtopic.php?p=946#946
I recommend using this plugin as it is a more convenient way to implement Add-Ons to cacti.
Reinhard
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Howie
Cacti Guru User
Joined: 16 Sep 2004
Posts: 2162
Location: United Kingdom
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| Posted: Sun Mar 12, 2006 3:01 pm Post subject: |
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| lvm wrote: | Howie,
again many thanks for your assistance. I'm now running a standard cacti-0.8.6h in parallel with current svn and was able to implement the plugin arch without any problems (great work, Jimmy!). |
No problem  Glad you got it working. All the better to improve Cacti... now I should get my own plugin finished. 
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gandalf
Developer
Joined: 02 Dec 2004
Posts: 12275
Location: Muenster, Germany
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| Posted: Sun Mar 12, 2006 4:16 pm Post subject: |
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| Howie wrote: | | No problem Glad you got it working. All the better to improve Cacti... now I should get my own plugin finished. |
Yes, that would be a good one. Had already a try with your weathermap. But unfortunately, our redundancy concept is somewhat complicated. So I'm at a loss with those "straight" lines between targets ...
But don't hesitate. Your work is greatly appreciated by many users  
Reinhard
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Howie
Cacti Guru User
Joined: 16 Sep 2004
Posts: 2162
Location: United Kingdom
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| Posted: Sun Mar 12, 2006 4:57 pm Post subject: |
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| lvm wrote: | | Howie wrote: | | No problem Glad you got it working. All the better to improve Cacti... now I should get my own plugin finished. |
Yes, that would be a good one. Had already a try with your weathermap. But unfortunately, our redundancy concept is somewhat complicated. So I'm at a loss with those "straight" lines between targets ...
But don't hesitate. Your work is greatly appreciated by many users
Reinhard |
Ah - then 0.8 is for you! Curved links, and aggregate links are among the new features (along with proper Cacti integration of course). It should be done in the next week or so.
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gandalf
Developer
Joined: 02 Dec 2004
Posts: 12275
Location: Muenster, Germany
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| Posted: Thu Mar 16, 2006 2:03 pm Post subject: |
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You're going to make my feet tremble  
Reinhard
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sandman
Joined: 13 Sep 2006
Posts: 3
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| Posted: Wed Sep 13, 2006 8:11 am Post subject: |
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Hi... i have install this plugin... and until have cmd.php running... its works so fine... But, now... i work with cactid... and when i execute the poller performance, its change my poller metod for cmd.php....
Its Normals? I reset the poller metod and back to normal with cactid.
Thanks.
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SyxPak
Joined: 24 Mar 2006
Posts: 9
Location: Ireland
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| Posted: Thu Oct 26, 2006 9:56 am Post subject: |
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Installed pollerperf from howie's Cacti Plugin Arch version. It didn't include a host.php.
When clicking on a host name in the poller performance page (under utilities), it tries to go to
[cactihost]/cacti/plugins/pollperf/host.php?action=edit&id=xyz
instead of what I assume to be correct <?>
[cactihost]/cacti/host.php?action=edit&id=xyz
HostInfo:
| Quote: | Cacti Version - 0.8.6h
Plugin Architecture - 1.0
Poller Type - Cactid v0.8.6f
Server Info - Linux 2.6.15-26-386
Web Server - Apache/2.0.55 (Ubuntu) PHP/5.1.2
PHP - 5.1.2
PHP Extensions - xmlwriter, libxml, xml, wddx, tokenizer, sysvshm, sysvsem, sysvmsg, standard, SimpleXML, sockets, soap, SPL, shmop, session, Reflection, posix, mime_magic, mbstring, iconv, hash, gettext, ftp, filepro, exif, dom, dba, date, ctype, calendar, bz2, bcmath, zlib, pcre, openssl, xmlreader, apache2handler, mysql, snmp, mysqli, gd
MySQL - 5.0.22-Debian_0ubuntu6.06.2-log
RRDTool - 1.2.11
SNMP - 5.2.1.2
PluginsRead-only Devices Tab (devices - v0.4)
Network Discovery (discovery - v0.6)
Host Info (hostinfo - v0.1)
Simple Links page (links - v0.3)
Device Monitoring (monitor - v0.7)
Poller Performance Report (pollperf - v0.1)
Thresholds (thold - v0.3.0)
Network Tools (tools - v0.2)
Update Checker (update - v0.3)
PHP Network Weathermap (weathermap - v0.82) |
/usr/share/cacti/site/include/config.php:
$plugins[] = 'devices';
$plugins[] = 'discovery';
//$plugins[] = 'flowview';
$plugins[] = 'hostinfo';
$plugins[] = 'links';
//$plugins[] = 'mactrack';
//$plugins[] = 'manage';
$plugins[] = 'monitor';
$plugins[] = 'pollperf';
//$plugins[] = 'rrdclean';
$plugins[] = 'thold';
$plugins[] = 'tools';
$plugins[] = 'update';
//$plugins[] = 'uptime'; Deprecated
$plugins[] = 'weathermap';
//$plugins[] = '';
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fmangeant
Cacti Guru User
Joined: 19 Sep 2003
Posts: 2325
Location: Sophia-Antipolis, France
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| Posted: Mon Nov 20, 2006 6:54 am Post subject: |
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| SyxPak wrote: | Installed pollerperf from howie's Cacti Plugin Arch version. It didn't include a host.php.
When clicking on a host name in the poller performance page (under utilities), it tries to go to
[cactihost]/cacti/plugins/pollperf/host.php?action=edit&id=xyz
instead of what I assume to be correct <?>
[cactihost]/cacti/host.php?action=edit&id=xyz |
Hi
I have the same problem. A temporary fix is to edit poller-perf.php line 179 :
| Code: | | <a class="linkEditMain" href="/cacti/host.php?action=edit&id=<?php print $host["id"];?>"><?php print $host["description"];?></a> |
When you install the plugin architecture, a URL_PATH is defined. I've tried to use it in poller-perf.php, but failed 
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timi
Cacti User
Joined: 09 Nov 2005
Posts: 129
Location: Timisoara, Romania
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| Posted: Mon Nov 20, 2006 11:34 am Post subject: |
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| the plugin works great, and modified the poller-perf.php to work the edit host link 10q
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timi
Cacti User
Joined: 09 Nov 2005
Posts: 129
Location: Timisoara, Romania
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fmangeant
Cacti Guru User
Joined: 19 Sep 2003
Posts: 2325
Location: Sophia-Antipolis, France
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| Posted: Tue Nov 28, 2006 2:56 am Post subject: |
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Hi
do you use DEBUG as logging level ?
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timi
Cacti User
Joined: 09 Nov 2005
Posts: 129
Location: Timisoara, Romania
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| Posted: Tue Nov 28, 2006 3:11 am Post subject: |
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nope, but now i did, for what should i look, there are a lot of lines
Last edited by timi on Tue Nov 28, 2006 3:14 am; edited 1 time in total |
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for some time, the pollerperf looks like this 