The documentation says:
$ play start
Note: the HTTP port can be set by passing -Dhttp.port system variable
but I'm still hitting 9000 port taken error
$ /opt/play-2.0/play start -Dhttp.port=9001
[info] Loading project definition from /my/path
[info] Set current project to marmurka (in build file:/my/path/)
(Starting server. Type Ctrl+D to exit logs, the server will remain in background)
Play server process ID is 27505
[info] play - Application started (Prod)
Oops, cannot start the server.
org.jboss.netty.channel.ChannelException: Failed to bind to: /0.0.0.0:9000
at org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:298)
at play.core.server.NettyServer.<init>(NettyServer.scala:63)
at play.core.server.NettyServer$.createServer(NettyServer.scala:131)
at play.core.server.NettyServer$$anonfun$main$5.apply(NettyServer.scala:153)
at play.core.server.NettyServer$$anonfun$main$5.apply(NettyServer.scala:152)
at scala.Option.map(Option.scala:133)
at play.core.server.NettyServer$.main(NettyServer.scala:152)
at play.core.server.NettyServer.main(NettyServer.scala)
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind(Native Method)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:137)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:77)
at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.bind(NioServerSocketPipelineSink.java:140)
at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.handleServerSocket(NioServerSocketPipelineSink.java:92)
at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.eventSunk(NioServerSocketPipelineSink.java:66)
at org.jboss.netty.channel.Channels.bind(Channels.java:462)
at org.jboss.netty.channel.AbstractChannel.bind(AbstractChannel.java:186)
at org.jboss.netty.bootstrap.ServerBootstrap$Binder.channelOpen(ServerBootstrap.java:343)
at org.jboss.netty.channel.Channels.fireChannelOpen(Channels.java:170)
at org.jboss.netty.channel.socket.nio.NioServerSocketChannel.<init>(NioServerSocketChannel.java:77)
at org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory.newChannel(NioServerSocketChannelFactory.java:137)
at org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory.newChannel(NioServerSocketChannelFactory.java:85)
at org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:277)
... 7 more
First type: play
then in console type: start 9001
The same for development mode. First: play, then: run 9001
Another way use qoutes:
play "start 9001"
play "run 9001"