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Bug 1415816 - Integrating PCP's graphite emulation with Grafana is unusable
Summary: Integrating PCP's graphite emulation with Grafana is unusable
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: pcp
Version: 7.3
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Frank Ch. Eigler
QA Contact: Martin Cermak
URL:
Whiteboard:
Depends On:
Blocks: 1420851
TreeView+ depends on / blocked
 
Reported: 2017-01-23 19:29 UTC by Peter Portante
Modified: 2021-12-10 14:52 UTC (History)
11 users (show)

Fixed In Version: pcp-3.12.2-1.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-04-10 17:04:49 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
test logs (1.38 KB, application/x-xz)
2018-03-15 18:14 UTC, Martin Cermak 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1472153 0 medium CLOSED Rebase PCP for RHEL 7.5 2021-12-10 15:09:23 UTC
Red Hat Product Errata RHBA-2018:0926 0 None None None 2018-04-10 17:05:50 UTC

Internal Links: 1472153

Description Peter Portante 2017-01-23 19:29:31 UTC 
We have a 28 node environment where is node has PCP metrics send to a central server.

When I run the graphite emulation service for PCP archives and create a Grafana v4 data source for that instance, I find that it takes many minutes for the metrics selection widget to populate the available metrics.

This renders the integration unusable at this small scale.
Comment 3 Frank Ch. Eigler 2017-06-23 19:55:44 UTC 
Please consider taking a look at the version of pmwebd in this COPR.  It aims to address this and related problems.

https://copr.fedorainfracloud.org/coprs/fche/pcp/
Comment 4 Simon Reber 2017-06-28 09:47:44 UTC 
(In reply to Frank Ch. Eigler from comment #3)
> Please consider taking a look at the version of pmwebd in this COPR.  It
> aims to address this and related problems.
> 
> https://copr.fedorainfracloud.org/coprs/fche/pcp/
Would you have information available about the changes included? It would be nice to have some information available how to use the packages, knowing the changes implemented and if there is any difference in the usage.
Comment 5 Simon Reber 2017-06-28 09:48:23 UTC 
(In reply to Frank Ch. Eigler from comment #3)
> Please consider taking a look at the version of pmwebd in this COPR.  It
> aims to address this and related problems.
> 
> https://copr.fedorainfracloud.org/coprs/fche/pcp/
Would you have information available about the changes included? It would be nice to have some information available how to use the packages, knowing the changes implemented and if there is any difference in the usage.
Comment 6 Frank Ch. Eigler 2017-06-30 14:17:07 UTC 
> > https://copr.fedorainfracloud.org/coprs/fche/pcp/
> Would you have information available about the changes included? 

Certainly.  The build comes from git://sourceware.org/git/pcpfans.git branch fche/pmfuntools, which is regularly rebased on top of pcp master, as long as we have features that have not yet been merged upstream.

The big ticket item is "pmwebd -J", a new default option that dramatically speeds up pmwebd when processing graphite queries against a potentially huge set of archives, and allows representation of a barely-mangled hostname (instead of a highly mangled archive path name) as the first component of the graphite metrics.

From [man pmwebd]:

       -J     When constructing graphite metric names, use the stored hostname instead of a archive pathname as the first component.  This virtually unifies all archives found with the same hostname into a single time series.  The host name is canonicalized: any symbol characters other than _ (underscore), space, - (hyphen), and / (slash) are replaced by _ (underscore).
Comment 12 Martin Cermak 2018-03-15 18:14:40 UTC 
Created attachment 1408516 [details]
test logs
Comment 13 Martin Cermak 2018-03-15 18:16:21 UTC 
Verified with pcp-3.12.2-5.el7.
Comment 16 errata-xmlrpc 2018-04-10 17:04:49 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0926
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