没法复现你说的这种情况， 能提供更详细的信息吗？cdc 是从官方下载的吗？
[root@copy-of-vm-ee-centos76-v1 5.3]# pwd
/root/5.3
[root@copy-of-vm-ee-centos76-v1 5.3]# wget https://tiup-mirrors.pingcap.com/cdc-v5.3.0-linux-amd64.tar.gz
--2022-02-18 11:07:02-- https://tiup-mirrors.pingcap.com/cdc-v5.3.0-linux-amd64.tar.gz
Resolving tiup-mirrors.pingcap.com (tiup-mirrors.pingcap.com)... 42.81.118.41
Connecting to tiup-mirrors.pingcap.com (tiup-mirrors.pingcap.com)|42.81.118.41|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 54156566 (52M) [application/x-compressed]
Saving to: ‘cdc-v5.3.0-linux-amd64.tar.gz’
100%[==============================================================================>] 54,156,566 9.54MB/s in 5.4s
2022-02-18 11:07:08 (9.61 MB/s) - ‘cdc-v5.3.0-linux-amd64.tar.gz’ saved [54156566/54156566]
[root@copy-of-vm-ee-centos76-v1 5.3]# tar zxvf cdc-v5.3.0-linux-amd64.tar.gz
cdc
[root@copy-of-vm-ee-centos76-v1 5.3]# ps -ef | grep dbus-daemon
dbus 838 1 0 2021 ? 03:50:14 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
root 9865 4159 0 11:07 pts/1 00:00:00 grep --color=auto dbus-daemon
[root@copy-of-vm-ee-centos76-v1 5.3]# ./cdc version
Release Version: v5.3.0
Git Commit Hash: 20626babf21fc381d4364646c40dd84598533d66
Git Branch: heads/refs/tags/v5.3.0
UTC Build Time: 2021-11-22 10:37:02
Go Version: go version go1.16.4 linux/amd64
Failpoint Build: false
[root@copy-of-vm-ee-centos76-v1 5.3]# ps -ef | grep dbus-daemon
dbus 838 1 0 2021 ? 03:50:14 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
root 9886 4159 0 11:07 pts/1 00:00:00 grep --color=auto dbus-daemon
[root@copy-of-vm-ee-centos76-v1 5.3]# ./cdc -h
Change Data Capture
Usage:
cdc [command]
Available Commands:
cli Manage replication task and TiCDC cluster
help Help about any command
redo Manage redo logs of TiCDC cluster
server Start a TiCDC capture server
version Output version information
Flags:
-h, --help help for cdc
Use "cdc [command] --help" for more information about a command.
[root@copy-of-vm-ee-centos76-v1 5.3]# ps -ef | grep dbus-daemon
dbus 838 1 0 2021 ? 03:50:14 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
root 9919 4159 0 11:08 pts/1 00:00:00 grep --color=auto dbus-daemon