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List: collectd
Subject: Re: [collectd] collectd Digest, Vol 125, Issue 21
From: Jan_Vítek <mail () janvitek ! com>
Date: 2016-02-29 11:39:53
Message-ID: CAFCOdJ_wN5qYbBjgBx0VMvB=FsyUPm5rr=L-ERSYXqSDbu=DNw () mail ! gmail ! com
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Hi,
i had similar problem however I don't think my sollution is suitable for
you. One type of my devices returned "normal operation" and "active alarm"
strings instead of simple 0/1. I made custom alphabet of 40 characters and
changed thde snmp plugin. Now if it finds a string in returned gauge value
it takes first 11 characters and converts it to 32 bit integer. In the
frontend application I have simple parser to convert it back to string.
Advantage of this approach is that it lets you use threshold plugin on the
returned values or visualize them as a chart. I think main disadvantage is
the 11 characters constraint. Other disadvantage is the need of
modification both collectd and frontend application.
I could make a patch from my sollution if you'd be interested.
Kind regards,
Jan Vitek
2016-02-29 12:00 GMT+01:00 <collectd-request@verplant.org>:
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> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of collectd digest..."
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>
> Today's Topics:
>
> 1. how to collect string values with snmp plugin (Niels Tomey)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 29 Feb 2016 15:58:12 +0800
> From: Niels Tomey <niels@ixs.ph>
> To: collectd@verplant.org
> Subject: [collectd] how to collect string values with snmp plugin
> Message-ID:
> <CALhsmHOTvbw-qz_a-=
> 5nL5X1FKd9o49LhHiDS3dvJpOVyb6n5w@mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> I would like to have collectd parse text values such as those found in
> 'system' (sysName, sysContact, sysLocation and so on). While researching it
> seems that alphanumerical strings should be of the 'octet' type, however
> there doesn't appear to be a suitable DataSet in
> /usr/share/collectd/types.db by default.
>
> I can hardly imagine I'm the first one who wants to do this, but I can't
> find anything on the subject online so I might be looking completely wrong
> at this subject.
>
> When using snmpwalk I see the values I want to store, but when I ask
> collectd to get these values like so:
>
> <Data "sysName">
> Type "absolute"
> Table false
> Instance "SNMPv2-MIB"
> Values "sysName"
> </Data>
>
> I can see in the log file that collectd gets the proper result, but doesn't
> know what to do with it.
>
> [2016-02-29 14:53:10] parse_value: Failed to parse string as absolute:
> (null).
> [2016-02-29 14:53:10] snmp plugin: csnmp_value_list_to_value: Parsing
> string as absolute failed: *hostname1*
> [2016-02-29 14:53:10] parse_value: Failed to parse string as absolute:
> (null).
> [2016-02-29 14:53:10] snmp plugin: csnmp_value_list_to_value: Parsing
> string as absolute failed: *hostname2*
>
> Do I need to define a custom data type for this, or is there something else
> I should do to get these results?
>
> Kind regards,
>
> Niels
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> End of collectd Digest, Vol 125, Issue 21
> *****************************************
>
[Attachment #5 (text/html)]
<div dir="ltr">Hi,<div><br></div><div>i had similar problem however I don't think \
my sollution is suitable for you. One type of my devices returned "normal \
operation" and "active alarm" strings instead of simple 0/1. I made \
custom alphabet of 40 characters and changed thde snmp plugin. Now if it finds a \
string in returned gauge value it takes first 11 characters and converts it to 32 bit \
integer. In the frontend application I have simple parser to convert it back to \
string.</div><div><br></div><div>Advantage of this approach is that it lets you use \
threshold plugin on the returned values or visualize them as a chart. I think main \
disadvantage is the 11 characters constraint. Other disadvantage is the need of \
modification both collectd and frontend application.</div><div><br></div><div>I could \
make a patch from my sollution if you'd be \
interested.</div><div><br></div><div>Kind regards,</div><div>Jan \
Vitek</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div \
class="gmail_quote">2016-02-29 12:00 GMT+01:00 <span dir="ltr"><<a \
href="mailto:collectd-request@verplant.org" \
target="_blank">collectd-request@verplant.org</a>></span>:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex">Send collectd mailing list submissions to<br>
<a href="mailto:collectd@verplant.org">collectd@verplant.org</a><br>
<br>
To subscribe or unsubscribe via the World Wide Web, visit<br>
<a href="http://mailman.verplant.org/listinfo/collectd" rel="noreferrer" \
target="_blank">http://mailman.verplant.org/listinfo/collectd</a><br> or, via email, \
send a message with subject or body 'help' to<br>
<a href="mailto:collectd-request@verplant.org">collectd-request@verplant.org</a><br>
<br>
You can reach the person managing the list at<br>
<a href="mailto:collectd-owner@verplant.org">collectd-owner@verplant.org</a><br>
<br>
When replying, please edit your Subject line so it is more specific<br>
than "Re: Contents of collectd digest..."<br>
<br>
<br>
Today's Topics:<br>
<br>
1. how to collect string values with snmp plugin (Niels Tomey)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Mon, 29 Feb 2016 15:58:12 +0800<br>
From: Niels Tomey <<a href="mailto:niels@ixs.ph">niels@ixs.ph</a>><br>
To: <a href="mailto:collectd@verplant.org">collectd@verplant.org</a><br>
Subject: [collectd] how to collect string values with snmp plugin<br>
Message-ID:<br>
<CALhsmHOTvbw-qz_a-=<a \
href="mailto:5nL5X1FKd9o49LhHiDS3dvJpOVyb6n5w@mail.gmail.com">5nL5X1FKd9o49LhHiDS3dvJpOVyb6n5w@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
I would like to have collectd parse text values such as those found in<br>
'system' (sysName, sysContact, sysLocation and so on). While researching \
it<br> seems that alphanumerical strings should be of the 'octet' type, \
however<br> there doesn't appear to be a suitable DataSet in<br>
/usr/share/collectd/types.db by default.<br>
<br>
I can hardly imagine I'm the first one who wants to do this, but I can't<br>
find anything on the subject online so I might be looking completely wrong<br>
at this subject.<br>
<br>
When using snmpwalk I see the values I want to store, but when I ask<br>
collectd to get these values like so:<br>
<br>
<Data "sysName"><br>
Type "absolute"<br>
Table false<br>
Instance "SNMPv2-MIB"<br>
Values "sysName"<br>
</Data><br>
<br>
I can see in the log file that collectd gets the proper result, but doesn't<br>
know what to do with it.<br>
<br>
[2016-02-29 14:53:10] parse_value: Failed to parse string as absolute:<br>
(null).<br>
[2016-02-29 14:53:10] snmp plugin: csnmp_value_list_to_value: Parsing<br>
string as absolute failed: *hostname1*<br>
[2016-02-29 14:53:10] parse_value: Failed to parse string as absolute:<br>
(null).<br>
[2016-02-29 14:53:10] snmp plugin: csnmp_value_list_to_value: Parsing<br>
string as absolute failed: *hostname2*<br>
<br>
Do I need to define a custom data type for this, or is there something else<br>
I should do to get these results?<br>
<br>
Kind regards,<br>
<br>
Niels<br>
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<br>
End of collectd Digest, Vol 125, Issue 21<br>
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