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Bug 1439990

Summary:	why so many sessions scope file didn't been deleted?
Product:	Red Hat Enterprise Linux 7	Reporter:	muahao <muahao>
Component:	systemd	Assignee:	systemd-maint
Status:	CLOSED DUPLICATE	QA Contact:	qe-baseos-daemons
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	7.2	CC:	systemd-maint-list
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-04-13 08:17:57 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 muahao 2017-04-07 03:23:17 UTC

Description of problem:

Hello , I have so many docker container , and appear this problem, why there 
are so many session-xxxx.scope.d files and directorys in /run/systemd/system/ , I find my container ssh delays too slowly about 30s , I am puzzled that why so many "session-xxxx.scope.d" directorys didn't be deleted? I don't know if this is relate to https://github.com/systemd/systemd/issues/2925



Version-Release number of selected component (if applicable):


```
#rpm -q dbus
dbus-1.6.12-13.1.el7.x86_64
```

```
#rpm -q systemd
systemd-219-19.el7_2.13.x86_64.rpm 
```

```
[root /home/ahao.mah]
#ls -ld /run/systemd/system/session-*.scope* |wc -l
25981



```
[root /home/ahao.mah]
#ls -ld /run/systemd/system/session-*.scope* |wc -l
25981
```

```
[root /home/ahao.mah]
#ls -ld /run/systemd/system/session-*.scope* |head -n 100
-rw-r--r-- 1 root root  17 Mar  7 17:53 /run/systemd/system/session-1000019.scope
drwxr-xr-x 2 root root 140 Mar  7 17:53 /run/systemd/system/session-1000019.scope.d
-rw-r--r-- 1 root root  17 Mar  7 17:53 /run/systemd/system/session-1000020.scope
drwxr-xr-x 2 root root 140 Mar  7 17:53 /run/systemd/system/session-1000020.scope.d
-rw-r--r-- 1 root root  17 Mar  7 17:56 /run/systemd/system/session-1000404.scope
drwxr-xr-x 2 root root 140 Mar  7 17:56 /run/systemd/system/session-1000404.scope.d
-rw-r--r-- 1 root root  17 Mar  1 19:17 /run/systemd/system/session-100056.scope
drwxr-xr-x 2 root root 140 Mar  1 19:17 /run/systemd/system/session-100056.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:00 /run/systemd/system/session-1000871.scope
drwxr-xr-x 2 root root 140 Mar  7 18:00 /run/systemd/system/session-1000871.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:01 /run/systemd/system/session-1001130.scope
drwxr-xr-x 2 root root 140 Mar  7 18:01 /run/systemd/system/session-1001130.scope.d
-rw-r--r-- 1 root root  17 Mar  1 19:20 /run/systemd/system/session-100129.scope
drwxr-xr-x 2 root root 140 Mar  1 19:20 /run/systemd/system/session-100129.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:04 /run/systemd/system/session-1001450.scope
drwxr-xr-x 2 root root 140 Mar  7 18:04 /run/systemd/system/session-1001450.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:05 /run/systemd/system/session-1001572.scope
drwxr-xr-x 2 root root 140 Mar  7 18:05 /run/systemd/system/session-1001572.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:05 /run/systemd/system/session-1001573.scope
drwxr-xr-x 2 root root 140 Mar  7 18:05 /run/systemd/system/session-1001573.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:08 /run/systemd/system/session-1001866.scope
drwxr-xr-x 2 root root 140 Mar  7 18:08 /run/systemd/system/session-1001866.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:08 /run/systemd/system/session-1001867.scope
drwxr-xr-x 2 root root 140 Mar  7 18:08 /run/systemd/system/session-1001867.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:10 /run/systemd/system/session-1002216.scope
drwxr-xr-x 2 root root 140 Mar  7 18:10 /run/systemd/system/session-1002216.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:10 /run/systemd/system/session-1002217.scope
drwxr-xr-x 2 root root 140 Mar  7 18:10 /run/systemd/system/session-1002217.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:16 /run/systemd/system/session-1002918.scope
drwxr-xr-x 2 root root 140 Mar  7 18:16 /run/systemd/system/session-1002918.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:20 /run/systemd/system/session-1003641.scope
drwxr-xr-x 2 root root 140 Mar  7 18:20 /run/systemd/system/session-1003641.scope.d
-rw-r--r-- 1 root root  17 Mar  7 18:25 /run/systemd/system/session-1004120.scope
drwxr-xr-x 2 root root 140 Mar  7 18:25 /run/systemd/system/session-1004120.scope.d
-rw-r--r-- 1 root root  17 Mar  1 19:25 /run/systemd/system/session-100418.scope
```

```
[root /home/ahao.mah]
#cat /run/systemd/system/session-*.scope.d/50-Description.conf
[Unit]
Description=Session 1000019 of user mysql
[Unit]
Description=Session 1000020 of user root
[Unit]
Description=Session 1000404 of user mysql
[Unit]
Description=Session 100056 of user root
[Unit]
Description=Session 1000871 of user mysql
[Unit]
Description=Session 1001130 of user mysql
[Unit]
Description=Session 100129 of user mysql
[Unit]
Description=Session 1001450 of user root
[Unit]
Description=Session 1001572 of user mysql
[Unit]
Description=Session 1001573 of user root
[Unit]
Description=Session 1001866 of user root
[Unit]
Description=Session 1001867 of user mysql
[Unit]
Description=Session 1002216 of user mysql
[Unit]
Description=Session 1002217 of user mysql
[Unit]
Description=Session 1002918 of user mysql
```

looks like there is not so many connections 

```
[root /home/ahao.mah]
#netstat -antlupe | wc -l
35

[root /home/ahao.mah]
#lsof -i :22 |wc -l
6
```

Comment 2 Lukáš Nykrýn 2017-04-13 08:17:57 UTC


*** This bug has been marked as a duplicate of bug 1439989 ***