PowerProtect: Cyber Recovery Docker 컨테이너가 시작되지 않음 "Docker 데몬에 연결할 수 없음"

Summary: Docker 데몬이 실행되지 않아 Docker 컨테이너를 시작할 수 없어 고객이 Cyber Recovery를 사용할 수 없습니다.

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Symptoms

Docker PS를 실행하려고 하면 Docker 데몬이 실행 중인지 묻는 메시지가 나타납니다.
  
[root@hostname ~]# docker ps -a
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?


Docker 서비스가 활성 상태가 아님
  
[root@hostname ~]# systemctl status docker
? docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
   Active: failed (Result: start-limit) since Wed 2022-11-16 07:39:05 EST; 3min 34s ago
     Docs: https://docs.docker.com
 Main PID: 7590 (code=exited, status=1/FAILURE)

Nov 16 07:39:02 hostname systemd[1]: docker.service failed.
Nov 16 07:39:05 hostname systemd[1]: docker.service holdoff time over, scheduling restart.
Nov 16 07:39:05 hostname systemd[1]: Stopped Docker Application Container Engine.
Nov 16 07:39:05 hostname systemd[1]: start request repeated too quickly for docker.service
Nov 16 07:39:05 hostname systemd[1]: Failed to start Docker Application Container Engine.
Nov 16 07:39:05 hostname systemd[1]: Unit docker.service entered failed state.
Nov 16 07:39:05 hostname systemd[1]: docker.service failed.
Nov 16 07:39:40 hostname systemd[1]: start request repeated too quickly for docker.service
Nov 16 07:39:40 hostname systemd[1]: Failed to start Docker Application Container Engine.
Nov 16 07:39:40 hostname systemd[1]: docker.service failed.


Cause

Docker 데몬을 시작하려고 하면 공간 문제에 대한 경고 메시지가 표시됩니다.
  
[root@ hostname]# sudo dockerd
Error starting daemon: Unable to get the TempDir under /var/lib/docker: mkdir /var/lib/docker/tmp: no space left on device

디스크 공간 문제가 발생했습니다. 루트 파일 시스템이 꽉 찬 것 같습니다.
  
[root@hostname ~]# df -kh
Filesystem                                Size  Used Avail Use% Mounted on
/dev/mapper/centos_hostname-root   38G   38G   20K 100% /        <<<<
devtmpfs                                  1.9G     0  1.9G   0% /dev
tmpfs                                     1.9G  8.0K  1.9G   1% /dev/shm
tmpfs                                     1.9G  8.9M  1.9G   1% /run
tmpfs                                     1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/sda1                                1014M  189M  826M  19% /boot
/dev/mapper/centos_ehs--hostname-home   19G  3.0G   16G  17% /home
tmpfs                                     379M     0  379M   0% /run/user/0
[root@hostname ~]#



Resolution

더 이상 필요하지 않은 이전 지원 번들 및 패키지를 제거하여 공간을 확보한 후 Cyber Recovery VM을 재부팅했습니다. 이제 컨테이너가 다시 실행되었고 고객은 Cyber Recovery 사용을 재개할 수 있었습니다.

Affected Products

Cyber Recovery Series

Products

Cyber Recovery Series, CyberSense
Article Properties
Article Number: 000214296
Article Type: Solution
Last Modified: 04 Nov 2025
Version:  2
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