运行在RHEL8 7.5上的服务不在RHEL8 (httpd服务)上运行

Question

我的服务在RHEL 7.5上运行得很好，现在我升级到了RHEL 8，同样的服务也失败了，情况如下：

Service.service - LSB: Web Server
Loaded: loaded (/etc/rc.d/init.d/Service; generated)
Active: failed (Result: protocol) since Mon 2020-04-06 12:02:21 IST; 38min ago
Docs: man:systemd-sysv-generator(8)
Process: 403 ExecStart=/etc/rc.d/init.d/Service start (code=exited, status=0/SUCCESS)

Apr 06 12:02:21 localhost.localdomain systemd[1]: Starting LSB: Web Server...
Apr 06 12:02:21 localhost.localdomain Service[403]: httpd (pid 29434) already running
Apr 06 12:02:21 localhost.localdomain systemd[1]: Service.service: Refusing to accept PID outside of service control group, acquired through unsafe symlink chain:
/usr/local/apache/logs/Service.pid
Apr 06 12:02:21 localhost.localdomain systemd[1]: Service.service: Refusing to accept PID outside of service control group, acquired through unsafe symlink chain:
/usr/local/apache/logs/Service.pid
Apr 06 12:02:21 localhost.localdomain systemd[1]: Service.service: Failed with result 'protocol'.
Apr 06 12:02:21 localhost.localdomain systemd[1]: Failed to start LSB: Web Server

THis是我的服务单元，放在/etc/init.d/Service下面，对于RHEL7.5也是这样，但是在RHEL 8中，这个服务是工作的，而不是。这里还有一件事要注意的是，web服务器正在按预期工作，尽管这给了我这个错误。

    #!/bin/sh
#
# chkconfig: 345 97 03
# description:Web Server
# processname: httpd
# config: /usr/local/Test/apache/conf/httpd.conf
# pidfile: /usr/local/Test/apache/logs/httpd.pid

### BEGIN INIT INFO
# Provides: Service
# Required-Start: $remote_fs $network $syslog
# Should-Start:
# Required-Stop:
# Default-Start: 3 4 5
# Default-Stop: 0 1 2 6`enter code here`
# Short-Description: Web Server
# Description: Web Server
### END INIT INFO

LANG=en_US.iso88591
export LANG

BASEDIR=/usr/local/Test/apache
PATH=$BASEDIR/bin:/usr/bin:/bin
export PATH

LD_LIBRARY_PATH=$BASEDIR/lib
export LD_LIBRARY_PATH

inst=/usr/local/Test
MIBDIRS=$inst/mibs
export MIBDIRS

case $1 in
start)
  apachectl start
  ;;
stop)
  apachectl stop
  ;;
restart)
  apachectl restart
  ;;
*)
  echo "usage: $0 { start | stop | restart }"
  ;;
esac

请帮我解决这个问题。

Answer 1

如果你在日记里看到：

Refusing to accept PID outside of service control group, acquired through unsafe symlink chain:

7.5中的systemd版本没有检查服务的pid是否在systemd单元的cgroup之外的附加检查。

如果要将7.5系统更新为7.7或更高版本，也会发生同样的错误。

如果将sysv init脚本转换为真正的systemd服务单元，您可能会更幸运。