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Bug 1789306

Summary:	pmlogger is taking longer time to start during boot
Product:	Red Hat Enterprise Linux 8	Reporter:	Dushyant <duge>
Component:	pcp	Assignee:	pcp-maint <pcp-maint>
Status:	CLOSED DUPLICATE	QA Contact:	qe-baseos-tools-bugs
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	8.1	CC:	agerstmayr, jkurik, mgoodwin, nathans, patrickm
Target Milestone:	rc
Target Release:	8.0
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	pcp-5.0.2-2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-01-10 02:57:34 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Dushyant 2020-01-09 10:11:12 UTC

Description of problem:

    5min 19.175s pmlogger_daily_report.service
         45.250s pmlogger_daily.service
          6.815s pmlogger.service
          1.480s pmlogger_check.service
            76ms pmlogger_daily-poll.service
            38ms pmlogger_daily_report-poll.service

pmlogger.service is declared as dependency on multi-user.target, so it part of the normal boot. Anything above a few seconds for a service that runs on every boot is just bad. Also, a few seconds is noticeable for users.

If we override all pmlogger*.service (pmlogger_daily-poll.service, pmlogger_daily_report-poll.service, pmlogger_daily_report.service, pmlogger_daily.service, pmlogger.service, pmlogger_check.service) and change Type=notify and deleted line "RequiredBy=pmlogger.service" from pmlogger_check.service then result is:

    1min 30.319s pmlogger_daily_report.service
          3.512s pmlogger_check.service
           148ms pmlogger.service
            82ms pmlogger_daily-poll.service
            39ms pmlogger_daily_report-poll.service


Version-Release number of selected component (if applicable):
pcp-4.3.2-2.el8.x86_64

How reproducible:

Need to install pcp-4.3.2-2.el8.x86_64 and enable pmlogger*.service.

Actual results:
pmlogger_daily_report.service is taking a long time to start during boot

Expected results:
pmlogger_daily_report.service should not take so long time to start during boot.

Additional info:

The same kind of related bug was raised for Fedora : https://bugzilla.redhat.com/show_bug.cgi?id=1737091

Comment 1 Jan Kurik 2020-01-09 10:19:16 UTC

I believe this is a duplicate of bz1780073, which is already in scope of RHEL-8.2 fixes.

Comment 2 Nathan Scott 2020-01-10 02:57:34 UTC


*** This bug has been marked as a duplicate of bug 1780073 ***

Comment 3 Dushyant 2020-01-16 13:48:08 UTC

The version of "pcp" package is different in both the Bugzilla and I believe the issues are different.

Is it possible to open this Bugzilla and look into this issue once?

Comment 4 Nathan Scott 2020-01-16 20:47:13 UTC

Dushyant, there were quite a few issues resolved as part of that BZ, including issues around pmlogger_daily_report and other pmlogger scripts inducing long delays around archive (de-)compression.  This issue is definitely resolved there.

Please try out pcp-5.0.2-2 with the 8.2 beta (publically available in a week or so AIUI).

cheers.