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Bug 1839666 - pmafm does not work with compressed archives
Summary: pmafm does not work with compressed archives
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: pcp
Version: 8.3
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Mark Goodwin
QA Contact: Jan Kurik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-05-25 08:32 UTC by Jan Kurik
Modified: 2021-09-17 12:44 UTC (History)
5 users (show)

Fixed In Version: pcp-5.2.1
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 Jan Kurik 2020-05-25 08:32:57 UTC 
Description of problem:
pmafm does not work with compressed archives. If a folio is created using mkaf from set of compressed archives, then pmafm reports errors accessing these archives.

Version-Release number of selected component (if applicable):
pcp-5.1.0-2.el8
(note: this is also reproducible on older pcp-4.3.2 releases).


How reproducible:
Always

Steps to Reproduce:
1. Run pmlogger for some time (5 mins. i.e.)
# systemctl start pmcd pmlogger; sleep 360
2. Restart pmlogger to rotate archives
# systemctl restart pmlogger
3. Compress old archives
# /usr/libexec/pcp/bin/pmlogger_daily -K
4. Create a folio
# /usr/libexec/pcp/bin/mkaf /var/log/pcp/pmlogger/$(hostname) \
  > /tmp/pcp.compressed.archives.folio
5. Check the folio
# pmafm /tmp/pcp.compressed.archives.folio check

Actual results:
The output of the pmafm looks like this:

Archive: /var/log/pcp/pmlogger/ci-vm-10-0-137-213.hosted.upshift.rdu2.redhat.com/20200525.04.16 ... Errors
No such file: /var/log/pcp/pmlogger/ci-vm-10-0-137-213.hosted.upshift.rdu2.redhat.com/20200525.04.16.meta
No such file: /var/log/pcp/pmlogger/ci-vm-10-0-137-213.hosted.upshift.rdu2.redhat.com/20200525.04.16.0
Archive: /var/log/pcp/pmlogger/ci-vm-10-0-137-213.hosted.upshift.rdu2.redhat.com/20200525.04.18 ... OK

Here is a list of the /var/log/pcp/pmlogger/$(hostname) directory:
# ls -1 /var/log/pcp/pmlogger/$(hostname)
20200525.04.16.0.xz
20200525.04.16.index
20200525.04.16.meta.xz
20200525.04.18.0
20200525.04.18.index
20200525.04.18.meta
Latest
pmlogger.log
pmlogger.log.prior

Expected results:
pmafm works with compressed archives as well as with uncompressed ones. As such the expected output of the pmafm should look like this:

Archive: /var/log/pcp/pmlogger/ci-vm-10-0-137-213.hosted.upshift.rdu2.redhat.com/20200525.04.16 ... OK
Archive: /var/log/pcp/pmlogger/ci-vm-10-0-137-213.hosted.upshift.rdu2.redhat.com/20200525.04.18 ... OK

Additional info:
Comment 1 Jan Kurik 2020-05-27 13:11:35 UTC 
Proposed patch: https://github.com/performancecopilot/pcp/pull/931
Comment 2 Mark Goodwin 2020-09-18 07:03:18 UTC 
Resolved upstream with commit:

commit 7a687217d813ae066cc43e871614d9580774b5d6
Author: Jan Kurik <jkurik>
Date:   Wed May 27 15:03:53 2020 +0200

    Make sure mkafm commands "check" and "remove" can work with compressed archives
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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