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Bug 1049630 - The script ganglia_ipmi_sensors.pl can break your entire Ganglia with buggy IPMI servers
Summary: The script ganglia_ipmi_sensors.pl can break your entire Ganglia with buggy I...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: freeipmi
Version: 6.6
Hardware: Unspecified
OS: Unspecified
unspecified
low
Target Milestone: rc
: ---
Assignee: Josef Ridky
QA Contact: Rachel Sibley
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-01-07 21:39 UTC by Miguel Armas
Modified: 2017-09-25 08:14 UTC (History)
0 users

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-09-25 08:14:14 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Patch to skip metrics with non-printable characters (496 bytes, patch)
2014-01-07 21:39 UTC, Miguel Armas 		no flags Details | Diff
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Links
System ID Private Priority Status Summary Last Updated
GNU Savannah 51105 0 None None None 2017-05-24 09:57:17 UTC

Description Miguel Armas 2014-01-07 21:39:06 UTC 
Created attachment 846847 [details]
Patch to skip metrics with non-printable characters

Description of problem:

On some buggy servers I get IPMI sensors with non-printable characters in the name. If you use the script ganglia_ipmi_sensors.pl to send the sensor data to Ganglia, the script sends these sensors breaking the whole Ganglia installation, because gmetad can not parse the output from gmond, due to these invalid characters

Version-Release number of selected component (if applicable):

freeipmi-1.2.1-3.el6.x86_64
Ganglia 3.6.0

How reproducible:

Always

Steps to Reproduce:
1. You need a server that reports invalid characters in sensor names
2. Send the data to Ganglia with ganglia_ipmi_sensors.pl
3. Ganglia will stop reporting data. 

Actual results:

Ganglia data gests corrupted. gstat reports this:

gexec_cluster() XML_ParseBuffer() error at line 141739:
not well-formed (invalid token)

Unable to get hostlist from localhost 8649!

Expected results:

Ganglia should not be afected by errors on individual nodes. If we get errors from ipmi-sensors, the script should skip that sensors

Additional info:

I know this issue should be fixed also in Ganglia, it shoud discard any data that will break the system. But since we are sending the metrics and the source of the data, we can easily fix it in the script with the simple patch attached
Comment 2 Josef Ridky 2017-09-25 08:14:14 UTC 
Red Hat Enterprise Linux 6 is in the Production 3 Phase. During the
Production 3 Phase, Critical impact Security Advisories (RHSAs) and
selected Urgent Priority Bug Fix Advisories (RHBAs) may be released as
they become available.

The official life cycle policy can be reviewed here:

http://redhat.com/rhel/lifecycle

This issue does not meet the inclusion criteria for the Production 3 Phase
and will be marked as CLOSED/WONTFIX. If this remains a critical
requirement, please contact Red Hat Customer Support to request
a re-evaluation of the issue, citing a clear business justification. Note
that a strong business justification will be required for re-evaluation.
Red Hat Customer Support can be contacted via the Red Hat Customer Portal
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