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Stalled system shutdown

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  Stalled system shutdown José Luis González <bugs.jlg@gmail.com> - 2022-02-11 01:00 +0100
    Re: Stalled system shutdown Flacusbigotis <flacusbigotis@gmail.com> - 2022-02-11 04:10 +0100
      Re: Stalled system shutdown José Luis González <bugs.jlg@gmail.com> - 2022-02-11 13:40 +0100
        Re: Stalled system shutdown Andrei POPESCU <andreimpopescu@gmail.com> - 2022-02-12 14:30 +0100
          Re: Stalled system shutdown Flacusbigotis <flacusbigotis@gmail.com> - 2022-02-13 02:20 +0100
            Re: Stalled system shutdown José Luis González <bugs.jlg@gmail.com> - 2022-02-13 11:40 +0100
    Re: Stalled system shutdown Tixy <tixy@yxit.co.uk> - 2022-02-11 10:10 +0100
      Re: Stalled system shutdown Cindy Sue Causey <butterflybytes@gmail.com> - 2022-02-11 10:50 +0100

#245192 — Stalled system shutdown

Hi,

When shutting down, after upgrading to Debian 11, system shutdown hangs
(freezes) for some time (about 1-2 minutes) anytime, making it
bothersome to shut the system down.

The freeze happens afther the "Stopped target remote filesystems"
status line. After a while "A stop job is running for ntopng" is
printed with an "in progress" status in red and a timeout of 1 minute
30 seconds, which is exhausted. So everyt time I shut down I get a 1
minute and 30 seconds delay.

Anyone can help, please?

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#245203

[Multipart message — attachments visible in raw view] — view raw

Just a question to help you start troubleshooting:

Does the shutdown finish quickly/quicker if you first stop the ntopng
systemd service manually before doing the full shutdown?

On Thu, Feb 10, 2022, 5:59 PM José Luis González <bugs.jlg@gmail.com> wrote:

> Hi,
>
> When shutting down, after upgrading to Debian 11, system shutdown hangs
> (freezes) for some time (about 1-2 minutes) anytime, making it
> bothersome to shut the system down.
>
> The freeze happens afther the "Stopped target remote filesystems"
> status line. After a while "A stop job is running for ntopng" is
> printed with an "in progress" status in red and a timeout of 1 minute
> 30 seconds, which is exhausted. So everyt time I shut down I get a 1
> minute and 30 seconds delay.
>
> Anyone can help, please?
>
>

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#245218

On Thu, 10 Feb 2022 21:03:14 -0600
Flacusbigotis <flacusbigotis@gmail.com> wrote:

> Just a question to help you start troubleshooting:
> 
> Does the shutdown finish quickly/quicker if you first stop the ntopng
> systemd service manually before doing the full shutdown?

I did a "# service status ntopng" and it seems the daemon is dead and
it has errors:

=======

• ntopng.service - ntopng - High-Speed Web-based Traffic Analysis and Flow Collection Tool
     Loaded: loaded (/lib/systemd/system/ntopng.service; enabled; vendor preset: enabled)
     Active: inactive (dead) since Fri 2022-02-11 11:24:19 CET; 2h 3min ago
       Docs: man:ntopng(8)
             file:/usr/share/doc/ntopng/README.Debian
             file:/usr/share/doc/ntopng/UserGuide.pdf.gz
    Process: 698 ExecStart=/usr/sbin/ntopng /etc/ntopng.conf (code=exited, status=0/SUCCESS)
        CPU: 22ms

feb 11 11:24:19 tierra systemd[1]: Starting ntopng - High-Speed Web-based Traffic Analysis and Flow Collection Tool...
feb 11 11:24:19 tierra ntopng[698]: 11/Feb/2022 11:24:19 [Ntop.cpp:1902] Setting local networks to 127.0.0.0/8
feb 11 11:24:19 tierra ntopng[698]: 11/Feb/2022 11:24:19 [Redis.cpp:111] ERROR: ntopng requires redis server to be up and running
feb 11 11:24:19 tierra ntopng[698]: 11/Feb/2022 11:24:19 [Redis.cpp:112] ERROR: Please start it and try again or use -r
feb 11 11:24:19 tierra ntopng[698]: 11/Feb/2022 11:24:19 [Redis.cpp:113] ERROR: to specify a redis server other than the default
feb 11 11:24:19 tierra ntopng[698]: [Redis.cpp:111] ERROR: ntopng requires redis server to be up and running
feb 11 11:24:19 tierra ntopng[698]: [Redis.cpp:112] ERROR: Please start it and try again or use -r
feb 11 11:24:19 tierra ntopng[698]: [Redis.cpp:113] ERROR: to specify a redis server other than the default
feb 11 11:24:19 tierra systemd[1]: ntopng.service: Succeeded.
feb 11 11:24:19 tierra systemd[1]: Started ntopng - High-Speed Web-based Traffic Analysis and Flow Collection Tool.

=======

I wonder if the package ntopng is necessary for something. If I remove
it nothing else complains. I didn't know this package before.

By the way, with ntopng uninstalled my system shuts down normally.

Thanks for your help.


> On Thu, Feb 10, 2022, 5:59 PM José Luis González <bugs.jlg@gmail.com> wrote:
> 
> > Hi,
> >
> > When shutting down, after upgrading to Debian 11, system shutdown hangs
> > (freezes) for some time (about 1-2 minutes) anytime, making it
> > bothersome to shut the system down.
> >
> > The freeze happens afther the "Stopped target remote filesystems"
> > status line. After a while "A stop job is running for ntopng" is
> > printed with an "in progress" status in red and a timeout of 1 minute
> > 30 seconds, which is exhausted. So everyt time I shut down I get a 1
> > minute and 30 seconds delay.
> >
> > Anyone can help, please?
> >
> >

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#245281

[Multipart message — attachments visible in raw view] — view raw

On Vi, 11 feb 22, 13:36:09, José Luis González wrote:
> 
> I wonder if the package ntopng is necessary for something. If I remove
> it nothing else complains. I didn't know this package before.

At least on buster/arm64 nothing depends on it.

Was the package manually installed or does the description ring any 
bells?

Kind regards,
Andrei
-- 
http://wiki.debian.org/FAQsFromDebianUser

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#245312

[Multipart message — attachments visible in raw view] — view raw

> I wonder if the package ntopng is necessary for something.

See manpage gor ntopng it's for monitoring network resources/activity.

So if you aren't interested in doing that  then you don't need it installed.

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#245322

On Sat, 12 Feb 2022 19:13:28 -0600
Flacusbigotis <flacusbigotis@gmail.com> wrote:

> > I wonder if the package ntopng is necessary for something.
> 
> See manpage gor ntopng it's for monitoring network resources/activity.
> 
> So if you aren't interested in doing that  then you don't need it installed.

Yes, I have removed it.

Thanks all for your help.

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#245213

On Fri, 2022-02-11 at 00:58 +0100, José Luis González wrote:
> Hi,
> 
> When shutting down, after upgrading to Debian 11, system shutdown hangs
> (freezes) for some time (about 1-2 minutes) anytime, making it
> bothersome to shut the system down.
> 
> The freeze happens afther the "Stopped target remote filesystems"
> status line. After a while "A stop job is running for ntopng" is
> printed with an "in progress" status in red and a timeout of 1 minute
> 30 seconds, which is exhausted. So everyt time I shut down I get a 1
> minute and 30 seconds delay.
> 
> Anyone can help, please?

Do you have any network filesystems mounted? I've found that systemd
takes down the network connections before it unmounts disks, so if I
forget to unmount them before shutting down I get this delay.

-- 
Tixy

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#245216

On 2/11/22, Tixy <tixy@yxit.co.uk> wrote:
> On Fri, 2022-02-11 at 00:58 +0100, José Luis González wrote:
>> Hi,
>>
>> When shutting down, after upgrading to Debian 11, system shutdown hangs
>> (freezes) for some time (about 1-2 minutes) anytime, making it
>> bothersome to shut the system down.
>>
>> The freeze happens afther the "Stopped target remote filesystems"
>> status line. After a while "A stop job is running for ntopng" is
>> printed with an "in progress" status in red and a timeout of 1 minute
>> 30 seconds, which is exhausted. So everyt time I shut down I get a 1
>> minute and 30 seconds delay.
>>
>> Anyone can help, please?
>
> Do you have any network filesystems mounted? I've found that systemd
> takes down the network connections before it unmounts disks, so if I
> forget to unmount them before shutting down I get this delay.


Mine hangs because it's shutting down Firefox (Nightly from their
website these days).

Just as example, if I log out then log back in and run "ps aux|grep
firefox" after logouts that take a long time, there will most likely
be a long list of associated PIDs still in operation. If I try to
launch Firefox at that moment, it will most likely fail with an
advisement that a Firefox instance is already running. If I wait a few
more seconds then try again, Firefox will FINALLY have shut down the
rest of the way.

It's been ages since I first realized that was occurring. It was an
eye opener into that there's still a lot to learn about how operating
systems and their packages work under the hood. :)

Cindy :)
-- 
Cindy-Sue Causey
Talking Rock, Pickens County, Georgia, USA
* runs with birdseed *

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