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berndbausch's questions

Martin Hope
berndbausch
Asked: 2020-08-06 22:59:22 +0800 CST
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I have an Azure account that gives me free access to certain types of resources for a year. Each month, I have the right to launch 750 hours worth of virtual machines of size B1S.

Now, I have tried several regions (US East, US South, Japan East, Japan West), and B1S is not listed in any of them. The list invariably starts with B2S.

Which regions offer B1S?

azure
Martin Hope
berndbausch
Asked: 2018-03-06 16:59:17 +0800 CST
  • 0

The man page for scope says:

Unlike service units, scope units manage externally created processes, and do not fork off processes on its own.

On my RHEL server, I can see that gdm belongs to the gdm service. So does its child, gdm-simple-slave. gdm-simple-slave has created gdm-session-worker, but this process belongs to a scope, not the gdm service.

In light of this, what does "externally created process" mean, and what is the difference between a service and a scope?

For those readers who prefer code:

# systemctl status gdm
gdm.service - GNOME Display Manager
   Loaded: loaded (/usr/lib/systemd/system/gdm.service; enabled)
   Active: active (running) since Sun 2018-03-04 16:27:45 EST; 1 day 3h ago
  Process: 1330 ExecStartPost=/bin/bash -c TERM=linux /usr/bin/clear > /dev/tty1 (code=exited, status=0/SUCCESS)
 Main PID: 1307 (gdm)
   CGroup: /system.slice/gdm.service
           ├─1307 /usr/sbin/gdm
           ├─1331 /usr/libexec/gdm-simple-slave --display-i...
           └─1364 /usr/bin/Xorg :0 -background none -verbos...
# ps -ef|grep 1331
root      1331  1307  0 Mar04 ?    00:00:00 /usr/libexec/gdm-simple-slave...
root      2032  1331  0 Mar04 ?    00:00:00 gdm-session-worker ...
# systemctl status 2032
session-38.scope - Session 38 of user root
   Loaded: loaded (/run/systemd/system/session-38.scope; static)
  Drop-In: /run/systemd/system/session-38.scope.d
           └─90-After-systemd-logind\x2eservice.conf, 90-After-systemd-user-sessions\x2eservice.conf, 90-Description.conf, 90-SendSIGHUP.conf, 90-Slice.conf
   Active: active (running) since Sun 2018-03-04 21:12:08 EST; 22h ago
service