• 在卸载CDH6.3.1版本的时候,需要删除一个文件 /var/run/cloudera-scm-agent,在删除的时候报错了,先进入删除的文件目录里,发现里面有一个process,我们卸载该装载点(umount process),然后再删除文件,就不会报错了*
[root@node03 /]# rm -rf /var/run/cloudera-scm-agent
rm: cannot remove ‘/var/run/cloudera-scm-agent/process’: Device or resource busy
[root@node03 /]# cd /var/run/cloudera-scm-agent/
[root@node03 cloudera-scm-agent]# ls
process
[root@node03 cloudera-scm-agent]# umount process
[root@node03 cloudera-scm-agent]# cd ..
[root@node03 run]# ls
abrt          chrony              dbus             gssproxy.sock  log          netreport       rpcbind.sock    sshd.pid     udev
alsactl.pid   cloudera-scm-agent  dmeventd-client  httpd          lsm          NetworkManager  samba           sudo         udisks2
atd.pid       console             dmeventd-server  initramfs      lvm          plymouth        sepermit        sysconfig    user
auditd.pid    crond.pid           ebtables.lock    ksmtune.pid    lvmetad.pid  ppp             setrans         syslogd.pid  utmp
avahi-daemon  cron.reboot         faillock         libvirt        mdadm        radvd           setroubleshoot  systemd      vmware
boltd         cryptsetup          gdm              libvirtd.pid   media        rpcbind         sm-notify.pid   tmpfiles.d   xtables.lock
certmonger    cups                gssproxy.pid     lock           mount        rpcbind.lock    spice-vdagentd  tuned
[root@node03 run]# rm -rf /var/run/cloudera-scm-agent
[root@node03 run]# ^C

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