[Bug 782322] [NEW] plugin iostat_ios looses track of its state

[PresuntoRJ]

Public bug reported:

Binary package hint: munin

Plugin iostat_ios regularly loses track of its state and no longer plots
a graph. In munin-node.log the following lines are logged:

[8468] Error output from iostat_ios:
[8468]  Magic number checking on storable file failed at ../../lib/Storable.pm
(autosplit into ../../lib/auto/Storable/_retrieve.al) line 380, at
/etc/munin/plugins/iostat_ios line 218
[8468] Service 'iostat_ios' exited with status 255/0.

The only remedy I have found so far is deleting the state file
(/var/lib/munin/plugin-state/iostat-ios.state) and then running the
plugin manually to check (munin-run iostat_ios).

Steps to Reproduce:
1. Install munin and leave it running.

Actual results:
1. It collects the values for a while (usually a few days) and then, iostat_ios stops producing data for graphing.

Expected results:
1. iostat_ios should keep producing data for graphing.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: munin 1.4.5-3ubuntu4
ProcVersionSignature: Ubuntu 2.6.38-9.43-generic 2.6.38.4
Uname: Linux 2.6.38-9-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CheckboxSubmission: 8ffa75e1b233799807120f5ed7003ee9
CheckboxSystem: cc699a849d78f423c8e1f0dfc5139850
Date: Fri May 13 14:52:08 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: munin
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: munin (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug natty running-unity

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https://bugs.launchpad.net/bugs/782322

Title:
  plugin iostat_ios looses track of its state