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https://issues.apache.org/jira/browse/STORM-3537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16975177#comment-16975177
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Stig Rohde Døssing commented on STORM-3537:
-------------------------------------------

Hi Wu. This is not a bug. Just make sure the port is not used by another 
application, or use the configuration options in storm.yaml to change it to a 
different port.

> Ports configed in storm.yaml file can be used by other application.
> -------------------------------------------------------------------
>
>                 Key: STORM-3537
>                 URL: https://issues.apache.org/jira/browse/STORM-3537
>             Project: Apache Storm
>          Issue Type: Bug
>    Affects Versions: 2.1.0
>            Reporter: Wu
>            Priority: Major
>
> When submit a storm topology, it fail if the port is used by other 
> application, for example a python Flask application.  
> {code:java}
> //代码占位符
> // storm.yaml
> supervisor.slots.ports:
>  - 6720orc@bj2904:
> // start storm nibums ans Supervisor
> // start python flask 
> ~/program/simhash_doc_title$ ./start.sh 
>  * Serving Flask app "/home/orc/program/simhash_doc_title/simhash.py"
>  * Environment: production
>    WARNING: Do not use the development server in a production environment.
>    Use a production WSGI server instead.
>  * Debug mode: off
>  * Running on http://0.0.0.0:6720/ (Press CTRL+C to quit)
> // submit storm topology
> 2019-11-15 18:16:12.310 o.a.s.u.Utils main [ERROR] Received error in thread 
> main.. terminating server...
> java.lang.Error: java.security.PrivilegedActionException: 
> java.net.BindException: Address already in use
>     at org.apache.storm.utils.Utils.handleUncaughtException(Utils.java:653) 
> ~[storm-client-2.1.0.jar:2.1.0]
>     at org.apache.storm.utils.Utils.handleUncaughtException(Utils.java:632) 
> ~[storm-client-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.utils.Utils.lambda$createDefaultUncaughtExceptionHandler$2(Utils.java:1014)
>  ~[storm-client-2.1.0.jar:2.1.0]
>     at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1057) 
> [?:1.8.0_191]
>     at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1052) 
> [?:1.8.0_191]
>     at java.lang.Thread.dispatchUncaughtException(Thread.java:1959) 
> [?:1.8.0_191]
> Caused by: java.security.PrivilegedActionException
>     at java.security.AccessController.doPrivileged(Native Method) 
> ~[?:1.8.0_191]
>     at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_191]
>     at org.apache.storm.daemon.worker.Worker.start(Worker.java:180) 
> ~[storm-client-2.1.0.jar:2.1.0]
>     at org.apache.storm.daemon.worker.Worker.main(Worker.java:144) 
> ~[storm-client-2.1.0.jar:2.1.0]
> Caused by: java.net.BindException: Address already in use
>     at sun.nio.ch.Net.bind0(Native Method) ~[?:1.8.0_191]
>     at sun.nio.ch.Net.bind(Net.java:433) ~[?:1.8.0_191]
>     at sun.nio.ch.Net.bind(Net.java:425) ~[?:1.8.0_191]
>     at 
> sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) 
> ~[?:1.8.0_191]
>     at 
> org.apache.storm.shade.io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:130)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:558)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1358)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:501)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:486)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:1019)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.channel.AbstractChannel.bind(AbstractChannel.java:254)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:366)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:462)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at 
> org.apache.storm.shade.io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:897)
>  ~[storm-shaded-deps-2.1.0.jar:2.1.0]
>     at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_191]
> {code}



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