Hello,
On Sun, Feb 10, 2019 at 10:08:51AM +1100, Nathan Scott wrote:
> On Sun, Feb 10, 2019 at 6:47 AM Georg Sauthoff <mail@xxxxxxxx> wrote:
> > [...]
> > I'm asking because installing the dstat replacement[1] in Fedora 29
> > resulted in 3 additional always running systemd services[2] and 2 open
> > ports.
> The new dstat script resides in the pcp-system-tools sub-package of
> PCP. This package depends on python3, python3-pcp and pcp-libs. None
> of these packages contain systemd services.
The {pmcd,pmlogger,pmie}.service files are provided by the 'pcp'
package. And pcp-system-tools *does* depend on pcp. See also:
# dnf remove pcp
Dependencies resolved.
================================================================================
Package Arch Version Repository Size
================================================================================
Removing:
pcp x86_64 4.3.0-3.fc29 @updates 4.2 M
Removing dependent packages:
pcp-system-tools x86_64 4.3.0-3.fc29 @updates 620 k
[..]
> I wonder if you have installed the (optional) pcp-zeroconf package,
> Georg? This is a convenience package which automates setup of
No, I don't have it installed:
# rpm -q pcp-zeroconf
package pcp-zeroconf is not installed
> frequently needed PCP services for use in customer support situations.
> You do not need to install this package to use dstat.
As-is, because of the dependencies (see above) I have to install them.
> The new dstat does not require running services, by default it runs in
Yes, this is true, the service don't need to be running for the new dstat.
> a standalone fashion.
[..]
> > Perhaps it's just me, but having 3 services enabled after installing the
> > dstat replacement ('which strives for 100% output compatibility with the
> > original dstat') feels like a violation of the principle of least
> > astonishment.
> Agreed - that's why the code is written the way it is, and the
> packages are structured the way they are. It is not the case that you
> need to have 3 additional services running when using the new dstat.
The problem is that pmie/pmcd/pmlogger are enabled by default because they have
their 'vendor preset' configured to 'enabled'. See also:
# systemctl status pmie pmcd pmlogger
● pmie.service - Performance Metrics Inference Engine
Loaded: loaded (/usr/lib/systemd/system/pmie.service; disabled; vendor preset: enabled)
[..]
# find /usr/lib/systemd -name '*.preset' | xargs grep '\<\(pmcd\|pmlogger\|pmie\)'
/usr/lib/systemd/system-preset/90-default.preset:enable pmcd.service
/usr/lib/systemd/system-preset/90-default.preset:enable pmlogger.service
/usr/lib/systemd/system-preset/90-default.preset:enable pmie.service
# dnf provides /usr/lib/systemd/system-preset/90-default.preset
fedora-release-29-7.noarch : Fedora release files
[..]
Do I need to create a Bugzilla tickets for fixing the pcp dependencies and
presets or do you take care of it?
Best regards
Georg
--
https://gms.tf/
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