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Bug 1824403 - the folio written by pmchart when entering record mode should change local: and localhost to the actual hostname, to match the archive
Summary: the folio written by pmchart when entering record mode should change local: a...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: pcp
Version: 8.0
Hardware: All
OS: Linux
unspecified
medium
Target Milestone: rc
: 8.0
Assignee: Mark Goodwin
QA Contact: Jan Kurik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-04-16 06:46 UTC by Yogesh Babar
Modified: 2021-09-17 12:44 UTC (History)
5 users (show)

Fixed In Version: pcp-5.2.2-1.el8
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-05-18 15:19:30 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Yogesh Babar 2020-04-16 06:46:50 UTC 
Description of problem:

The pmchart in record mode on local system throws error "Host "local:" cannot be matched to an open archive for <metric_name>". The pmafm also shows the mismatch error 

pmafm> check
 Archive: /home/yogesh/.pcp/pmlogger/local:/20200415.03.49.55 ... Errors
 Hostname mismatch: folio=local: archive=pcp

My hostname is 'PCP'. 

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

pcp-4.3.2-3.el8_1.x86_64

How reproducible:


Steps to Reproduce:
1. on a localhost system
2. pmchart 
3.choose record
4. add any view
5. stop the recording

Actual results:
you will get the error - "Host "local:" cannot be matched to an open archive for <metric_name>".

Expected results:

the folio written by pmchart when entering record mode should change local: and localhost to the actual hostname, to match the archive

Additional info:

If you comment out the PMCD_LOCAL=1 from /etc/sysconfif/pmcd and start using the #pmchart -h <localhost_name> it works and it does capture the correct folio with correct hostname. 

Also, using #pmchart -h <remote_hostname> also works. 

It only fails on localsystem.
Comment 1 Mark Goodwin 2020-09-18 06:38:47 UTC 
Fixed upstream:

commit 214675b92c1d8290955c0026b1e41e8583a03098
Author: Mark Goodwin <mgoodwin>
Date:   Fri Sep 18 16:31:33 2020 +1000

    pmchart: record mode - save actual hostname instead of local: in views and folios
    
    Hostname in the view and folio needs to match the the archive label,
    otherwise pmafm can't match up archives with views.
    
    Resolves: RHBZ#1824403
Comment 4 Mark Goodwin 2020-09-30 08:48:53 UTC 
Regression reported by QA fixed upstream for pcp-5.2.2 :

commit c18e0033d9c1a2bd0b3cd248173c6901c0ec25e1
Author: Mark Goodwin <mgoodwin>
Date:   Wed Sep 30 18:35:49 2020 +1000

    pmchart: record mode, keep "local:" arg for launched pmloggers
    
    When pmchart "record mode" launches a pmlogger for host "local:",
    don't resolve the argument to the local hostname because pmlogger
    may not then be able to connect to the local PMCD if PMCD_LOCAL=1
    is set in sysconfig. Pmlogger already correctly handles translation
    of "local:" for the archive label.
    
    Resolves regression reported in RHBZ#1824403
Comment 9 errata-xmlrpc 2021-05-18 15:19:30 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 (pcp bug fix and enhancement update), 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-2021:1754
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