systemd在Ubuntu上启动后立即停止OrientDB 16.04
问题描述：
我试图在Ubuntu 16.04 LTS上使OrientDB作为守护进程运行（启动时启用）。问题是，系统似乎在我告诉它开始后立即调用stop。我有这个systemd服务文件完全一样OrientDB文档中建议：systemd在Ubuntu上启动后立即停止OrientDB 16.04
[Unit]
Description=OrientDB Server
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
Type=forking
ExecStart=$ORIENTDB_HOME/bin/orientdb.sh start
ExecStop=$ORIENTDB_HOME/bin/orientdb.sh stop
ExecStatus=$ORIENTDB_HOME/bin/orientdb.sh status
orientdb.log：
.
.` `
, `:.
`,` ,:`
.,. :,,
.,, ,,,
. .,.::::: ```` ::::::::: :::::::::
,` .::,,,,::.,,,,,,`;; .: :::::::::: ::: :::
`,. ::,,,,,,,:.,,.` ` .: ::: ::: ::: :::
,,:,:,,,,,,,,::. ` ` `` .: ::: ::: ::: :::
,,:.,,,,,,,,,: `::, ,, ::,::` : :,::` :::: ::: ::: ::: :::
,:,,,,,,,,,,::,: ,, :. : :: : .: ::: ::: :::::::
:,,,,,,,,,,:,:: ,, : : : : .: ::: ::: :::::::::
` :,,,,,,,,,,:,::, ,, .:::::::: : : .: ::: ::: ::: :::
`,...,,:,,,,,,,,,: .:,. ,, ,, : : .: ::: ::: ::: :::
.,,,,::,,,,,,,: `: , ,, : ` : : .: ::: ::: ::: :::
...,::,,,,::.. `: .,, :, : : : .: ::::::::::: ::: :::
,::::,,,. `: ,, ::::: : : .: ::::::::: ::::::::::
,,:` `,,.
,,, .,`
,,. `, GRAPH DATABASE
`` `.
`` orientdb.com
`
pid file detected, killing process
系统日志：
Jul 28 18:56:34 ubuntu systemd[1]: Starting OrientDB Server...
Jul 28 18:56:34 ubuntu orientdb.sh[17487]: Starting OrientDB server daemon...
Jul 28 18:56:34 ubuntu systemd[1]: Created slice User Slice of orientdb.
Jul 28 18:56:34 ubuntu systemd[1]: Starting User Manager for UID 999...
Jul 28 18:56:34 ubuntu systemd[1]: Started Session c5 of user orientdb.
Jul 28 18:56:34 ubuntu systemd[17497]: Reached target Timers.
Jul 28 18:56:34 ubuntu systemd[17497]: Reached target Paths.
Jul 28 18:56:34 ubuntu systemd[17497]: Reached target Sockets.
Jul 28 18:56:34 ubuntu systemd[17497]: Reached target Basic System.
Jul 28 18:56:34 ubuntu systemd[17497]: Reached target Default.
Jul 28 18:56:34 ubuntu systemd[17497]: Startup finished in 23ms.
Jul 28 18:56:34 ubuntu systemd[1]: Started User Manager for UID 999.
Jul 28 18:56:34 ubuntu orientdb.sh[17508]: Stopping OrientDB server daemon...
Jul 28 18:56:34 ubuntu systemd[1]: Started Session c6 of user orientdb.
Jul 28 18:56:34 ubuntu systemd[1]: Started OrientDB Server.
Jul 28 18:56:34 ubuntu systemd[1]: Stopping User Manager for UID 999...
Jul 28 18:56:34 ubuntu systemd[17497]: Reached target Shutdown.
Jul 28 18:56:34 ubuntu systemd[17497]: Starting Exit the Session...
Jul 28 18:56:34 ubuntu systemd[17497]: Stopped target Default.
Jul 28 18:56:34 ubuntu systemd[17497]: Stopped target Basic System.
Jul 28 18:56:34 ubuntu systemd[17497]: Stopped target Timers.
Jul 28 18:56:34 ubuntu systemd[17497]: Stopped target Paths.
Jul 28 18:56:34 ubuntu systemd[17497]: Stopped target Sockets.
Jul 28 18:56:34 ubuntu systemd[17497]: Received SIGRTMIN+24 from PID 17536 (kill).
Jul 28 18:56:34 ubuntu systemd[1]: Stopped User Manager for UID 999.
Jul 28 18:56:34 ubuntu systemd[1]: Removed slice User Slice of orientdb.
任何想法？
答
只要在systemd服务单元中包装自定义初始化脚本（orientdb.sh ,server.sh,shutdown.sh），您将遇到奇怪且难以调试的问题。
相反，您应该阅读这些脚本，了解他们如何启动OrientDB并仅重现服务单元中的必需内容。
答
我添加了一个用户&组orientdb到系统和下面systemd脚本中使用（假设orientdb安装在的/ opt/orientdb）：
[Unit]
Description=OrientDB Server
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=orientdb
Group=orientdb
ExecStart=/opt/orientdb/bin/server.sh
ExecStop=/opt/orientdb/bin/shutdown.sh
ExecReload=/bin/kill -HUP $MAINPID
答
如果你运行的服务器和关闭窗口，服务器将被关闭。将它与NOHUP（server.sh）一起使用，如果关闭该窗口，它将继续运行。
我有同样的问题，运气好的话
你是否按照此链接指南（http://orientdb.com/docs/2.1/Unix-Service.html）？ – lsavio
是的，这就是问题所在。我跟着文档（见上面的脚本），它不工作:)。 – austinsmorris
好的，你可以在Github上打开一个问题吗？..谢谢。 – lsavio