How To Fix Invalid DS Type Error

Table of Contents

This user guide will help you when you see an invalid DS type error.

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(Sorry for the long story, I wasted a few days. Basically – trying to convince you of my
incompetence, but I feel obligated to help you share my experience with 🙂

I recently had problems using SNMAgent to monitor some
Windows computers. A cool feature created by SNMAgent is the monitoring of almost all performance counters. I happily modified this to suit my needs, but
everything started to behave strangely at a few meters. Munin-update
seemed to complain for no reason:

…
Aug 12 [18306] 10:40:10 – Creating RRD file msexch_imf->scl0.Label
10:40:10 Aug 14 [18306] – Unable to create ” / ” var/lib/munin/domain.local/server1 .domain.local-msexch_imf-scl0-d.rrd: Invalid DS Type
…Aug
10:40:10 [18306] 14 Starting from rrd for tag msexch_imf->scl1.>10 14
…request

I worked tcp from snmagent 4949 myself, the ‘fetch’ and ‘config’ commands
formulated the expected results. No problem here.

By experimenting with the Munin theme, it was sometimes possible to create an RRD
file for at least one value, but some others didn’t all work; from time to timealo failure,
all for the same visually unchanged SNMAgent configuration! I had
some suspicions, so I made the following desperate change that the code can update before the RRDs::create:

section

It looks like SNMAgent is sending annoying spaces (CRLF?) in the output!

I tried a quick fix to remove spaces in the returned data and the problem is solved for my Munin 1.2.6:

— munin-update.ORIGINAL 2008-08-14 16:36:20.000000000 +0200
+++ munin-update 16:37:17 2008-08-14.000000000 – +0200
@@ 764.6 +764.10 @@
logger (“Create rrd many file for “$config->dbdir/$domain/”,0777;

$subservice”);
mkdir >

+ vitko number – trim-space
+ $node->client->$servname->”$client.type” S/^s+//;
+ $node-> =~ client ->$servname->”$client.type” S/s+$//;
+
RRDs::create (“$fname”,

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Author: Vitezslav Kotrla
August 10 10:40:10 [18306] Creation — rrd file for Msexch_imf->scl1 tag.14
Aug 10 [18306 10:40:10 AM] – Failed to create “/var/lib/munin/domain.local/server1.domain.local-msexch_imf-scl1- d.rrd”: Invalid type DS
…Debug
logger
# (” DEBUG type x ” is: $node->client->$servname->”$client.type” . ” x”);
…
14. 12:25:09 Aug [29389] Type DEBUG – xDERIVE From ^mx

Vitezslav’s contribution —
— Kotrly
— munin-update.ORIGINAL 08/14/2008 04:36:20.000000000 +0200
+++ munin – when updating 16 :37:17 2008-08-14.000000000 +0200
@@ -764.6 +764.10 (“rrd file @@
create logger relative to $servname->$subservice”);
mkdir “$config->dbdir/$domain/”,0777;
+ # after vitko – remove extra spaces
+ $node->client->$servname->”$client.type ” S/^s+//;
+ =~ $node->client->$servname->”$client.type” S/s+$//;
+
RRD =~ : :create (“$fname”,
“DS:42:”.($node->client->$servname->”$client.type” ||
“GAUGE”).”:600 : “.
(defined
$node->client->$servname->”$client.?
— min” This —
may require snmagent cleanup to basket?I’m not sure.Be was
I would appreciate your feedback and feedback.

This should go into munin-update. The rule about being nice
what you agree to is applied. I’ll fix it And “soon” I hope that Matthias
will build it into 1.2 too.

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Package: rrdtoolVersion: 1.7.2-3+b4Severity: [email protected]:~> rrdtool returns foo.DS:foo:GAUGE:1:10:1000RPA: rrd AVERAGE: 1:0.5:[email protected]:~> rrdtool update foo.rrd N:[email protected]:~> rrdtool tune foo.rrd DS:xxxERROR: invalid DS format- Melody output 1

it doesn’t seem to matter much, but it doesThis is a really weird DS for your current .update fileNow will not run:[email protected]:~> day foo rrdtool update.rrd N:100ERROR: foo.rrd: Expected 2 reads from write source (got 1) of N- [email protected]:~> exit rrdtool Foo refresh.rrd N:100:1ERROR: Unknown data collection function “0”rrdtool recycle shows that it is a DS with empty name added and wrong type. 0 0 0.0002525175e-308 0.0001931016e-308 PDP 1 0. 0000000000e+00 194 An empty name makes deletion difficult because “DEL:” doesn’t workapply to this situation. The only way I’ve found to get my data back is to paraphrase it’s XML file.Dump, enter a name, specific name, upload then and create a dump.– Version: System Information:Debian bullseye/seed APT prefers unstable debugging APT policy: (500, “unstable debug”), (500, “unstable”), (500, “old stable”)Architecture: (x86_64)Kernel: Linux amd64 5.5.0-2-amd64 (smp processor cores)Kernel interference flags: 4 TAINT_OOT_MODULE, taint_user, TAINT_UNSIGNED_MODULELanguage: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8),LANGUAGE=en_US.utf8 /bin/sh (charmap=utf-8)Shell: mounted /bin/dashInitialization: systemd (via /run/systemd/system)LSM: AppArmor: enabledVersions of rrdtool packages based on:iilibc6 2.30-4II libglib2.0-0 2.64.2-1II Librd8 1.7.2-3+b4rrdtool does not recommend packages.Stock versions up to:pn offers rrdtool librrds-perl — debconf info only–see yes nervous