gpcc启动时报Failed to start agent on mppm1

现象：openssh升级到8.4版本以后，greenplum  gpcc启动时报Failed to start agent on mppm1. Please check logs on mppm1 and run gpcc start to restart agents.

解决办法

greenplum与升级后的ssh服务sshd.socket不兼容,需要启动老的sshd.service

systemctl  stop   sshd.socket

systemctl  start   sshd.service