无法在 Centos 7 上分叉 initd 脚本。我已经安装了 JBOSS EAP7，它带有内置 initd 脚本来启动服务。我启动/停止/重新启动如下服务，效果很好。但是，当我通过 systemd 分叉相同的 initd 脚本时，它不起作用。任何帮助，将不胜感激。
# /opt/jboss/bin/init.d/jboss-eap-rhel.sh start
Starting jboss-eap: /root
[ OK ]
# /opt/jboss/bin/init.d/jboss-eap-rhel.sh status
jboss-eap is running (pid 3024)
# /opt/jboss/bin/init.d/jboss-eap-rhel.sh stop
Stopping jboss-eap: [ OK ]
# /opt/jboss/bin/init.d/jboss-eap-rhel.sh status
jboss-eap is not running
# /opt/jboss/bin/init.d/jboss-eap-rhel.sh start
Starting jboss-eap: /root
[ OK ]
# /opt/jboss/bin/init.d/jboss-eap-rhel.sh status
jboss-eap is running (pid 3314)
通过 systemd 分叉相同的 initd 脚本会出现错误。
# cat /etc/systemd/system/jbosseap7.service
[Unit]
Description=JBoss EAP7
After=syslog.target
After=network.target
[Service]
Type=forking
ExecStart=/opt/jboss/bin/init.d/jboss-eap-rhel.sh start
ExecStop=/opt/jboss/bin/init.d/jboss-eap-rhel.sh stop
ExecReload=/opt/jboss/bin/init.d/jboss-eap-rhel.sh restart
PIDFile=/var/run/jboss-eap/jboss-eap-standalone.pid
[Install]
WantedBy=multi-user.target
# time systemctl start jbosseap7
Job for jbosseap7.service failed because a timeout was exceeded. See "systemctl status jbosseap7.service" and "journalctl -xe" for details.
real **1m27.330s**
user 0m0.008s
sys 0m0.003s
# time systemctl status jbosseap7
● jbosseap7.service - JBoss EAP7
Loaded: loaded (/etc/systemd/system/jbosseap7.service; enabled; vendor preset: disabled)
Active: failed (Result: timeout) since Mon 2018-06-11 07:04:29 EDT; 15s ago
Jun 11 06:58:22 node01.local.com systemd[1]: Starting JBoss EAP7...
Jun 11 06:58:22 node01.local.com runuser[4071]: pam_unix(runuser:session): session opened for user jboss by (uid=0)
Jun 11 06:58:22 node01.local.com jboss-eap-rhel.sh[4060]: Starting jboss-eap: /
Jun 11 06:58:39 node01.local.com jboss-eap-rhel.sh[4060]: [ OK ]
Jun 11 06:58:39 node01.local.com systemd[1]: PID file /var/run/jboss-eap/jboss-eap-standalone.pid not readable (yet?) after start.
Jun 11 07:04:28 node01.local.com systemd[1]: jbosseap7.service start operation timed out. Terminating.
Jun 11 07:04:29 node01.local.com systemd[1]: Failed to start JBoss EAP7.
Jun 11 07:04:29 node01.local.com systemd[1]: Unit jbosseap7.service entered failed state.
Jun 11 07:04:29 node01.local.com systemd[1]: jbosseap7.service failed.
real 0m0.045s
user 0m0.004s
sys 0m0.000s
笔记：我什至尝试在 [SERVICE] 单元下指定超时限制，但这仍然不起作用。如果不指定时间限制，仍然需要很长时间（1分27秒）。这里可能出了什么问题？
补充评论：
有时启动，有时不启动。我们怎样才能确定失败的那一个呢？
# systemctl start jbosseap7
# systemctl status jbosseap7
● jbosseap7.service - JBoss EAP7
Loaded: loaded (/etc/systemd/system/jbosseap7.service; enabled; vendor preset: disabled)
Active: inactive (dead) since Mon 2018-06-11 07:32:47 EDT; 7s ago
Process: 2913 ExecStop=/etc/init.d/jboss-eap-rhel.sh stop (code=exited, status=0/SUCCESS)
Process: 2771 ExecStart=/etc/init.d/jboss-eap-rhel.sh start (code=exited, status=0/SUCCESS)
Main PID: 2537 (code=exited, status=0/SUCCESS)
Jun 11 07:32:15 node01.local.com systemd[1]: Starting JBoss EAP7...
Jun 11 07:32:15 node01.local.com runuser[2782]: pam_unix(runuser:session): session opened for user jboss by (uid=0)
Jun 11 07:32:15 node01.local.com jboss-eap-rhel.sh[2771]: Starting jboss-eap: /
Jun 11 07:32:46 node01.local.com jboss-eap-rhel.sh[2771]: jboss-eap started with errors, please see server log for details
Jun 11 07:32:46 node01.local.com jboss-eap-rhel.sh[2771]: [ OK ]
Jun 11 07:32:47 node01.local.com jboss-eap-rhel.sh[2913]: Stopping jboss-eap: [ OK ]
Jun 11 07:32:47 node01.local.com systemd[1]: Started JBoss EAP7.
# ps -ef | grep jboss
root 2924 2222 0 07:33 pts/0 00:00:00 grep --color=auto jboss
# systemctl start jbosseap7
# systemctl status jbosseap7
● jbosseap7.service - JBoss EAP7
Loaded: loaded (/etc/systemd/system/jbosseap7.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2018-06-11 07:33:35 EDT; 3s ago
Process: 2913 ExecStop=/etc/init.d/jboss-eap-rhel.sh stop (code=exited, status=0/SUCCESS)
Process: 2930 ExecStart=/etc/init.d/jboss-eap-rhel.sh start (code=exited, status=0/SUCCESS)
Main PID: 2943 (standalone.sh)
CGroup: /system.slice/jbosseap7.service
├─2943 /bin/sh /opt/jboss/bin/standalone.sh -c standalone.xml
└─3012 java -D[Standalone] -server -verbose:gc -Xloggc:/opt/jboss/standalone/log/gc.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+UseGCLogFileRotation -XX:Nu...
Jun 11 07:33:19 node01.local.com systemd[1]: Starting JBoss EAP7...
Jun 11 07:33:19 node01.local.com runuser[2941]: pam_unix(runuser:session): session opened for user jboss by (uid=0)
Jun 11 07:33:19 node01.local.com jboss-eap-rhel.sh[2930]: Starting jboss-eap: /
Jun 11 07:33:35 node01.local.com jboss-eap-rhel.sh[2930]: [ OK ]
Jun 11 07:33:35 node01.local.com systemd[1]: Started JBoss EAP7.
PS 结果：
# ps -aux|grep jboss
jboss 4559 0.0 0.0 113120 1540 ? S 07:58 0:00 /bin/sh /opt/jboss/bin/standalone.sh -c standalone.xml
jboss 4628 49.4 33.9 3077608 640432 ? Sl 07:58 0:15 java -D[Standalone] -server -verbose:gc -Xloggc:/opt/jboss/standalone/log/gc.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=3M -XX:-TraceClassUnloading -Xms1303m -Xmx1303m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -Dorg.jboss.boot.log.file=/opt/jboss/standalone/log/server.log -Dlogging.configuration=file:/opt/jboss/standalone/configuration/logging.properties -jar /opt/jboss/jboss-modules.jar -mp /opt/jboss/modules org.jboss.as.standalone -Djboss.home.dir=/opt/jboss -Djboss.server.base.dir=/opt/jboss/standalone -c standalone.xml
root 4754 0.0 0.0 112644 952 pts/0 R+ 07:58 0:00 grep --color=auto jboss
答案1
从systemctl守护进程的日志中，很明显它正在尝试读取jboss的pid文件。
因此，首先删除它的 pid 文件：
rm /var/run/jboss-eap/jboss-eap-standalone.pid
现在，注释以下行并重新加载守护进程：
#PIDFile=/var/run/jboss-eap/jboss-eap-standalone.pid
systemctl daemon-reload
然后启动jboss服务。
systemctl start jbosseap7