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https://issues.apache.org/jira/browse/NIFI-3537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15893120#comment-15893120
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Joseph Witt commented on NIFI-3537:
-----------------------------------
The port nifi is trying to use by default is 8080 but it appears there is
already something using that port. Please change the port from 8080 to
something else availabile on your system. You can do this by editing
conf/nifi.properties
Thanks
> Got Error when try to start NIFI
> --------------------------------
>
> Key: NIFI-3537
> URL: https://issues.apache.org/jira/browse/NIFI-3537
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: xiaoxue li
> Priority: Critical
>
> When try to start NIFI on our Windows server, got below error. Please help to
> check.
> 2017-02-28 04:46:16,192 ERROR [main] org.apache.nifi.NiFi Failure to launch
> NiFi due to java.net.ConnectException: Connection refused: connect
> java.net.ConnectException: Connection refused: connect
> at java.net.TwoStacksPlainSocketImpl.socketConnect(Native Method)
> ~[na:1.8.0_66]
> at
> java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
> ~[na:1.8.0_66]
> at
> java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
> ~[na:1.8.0_66]
> at
> java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
> ~[na:1.8.0_66]
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
> ~[na:1.8.0_66]
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
> ~[na:1.8.0_66]
> at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_66]
> at java.net.Socket.connect(Socket.java:538) ~[na:1.8.0_66]
> at
> org.apache.nifi.BootstrapListener.sendCommand(BootstrapListener.java:100)
> ~[nifi-runtime-0.6.1.jar:0.6.1]
> at org.apache.nifi.BootstrapListener.start(BootstrapListener.java:83)
> ~[nifi-runtime-0.6.1.jar:0.6.1]
> at org.apache.nifi.NiFi.<init>(NiFi.java:83)
> ~[nifi-runtime-0.6.1.jar:0.6.1]
> at org.apache.nifi.NiFi.main(NiFi.java:227)
> ~[nifi-runtime-0.6.1.jar:0.6.1]
> 2017-02-28 04:46:16,192 INFO [Thread-1] org.apache.nifi.NiFi Initiating
> shutdown of Jetty web server...
> 2017-02-28 04:46:16,192 INFO [Thread-1] org.apache.nifi.NiFi Jetty web server
> shutdown completed (nicely or otherwise).
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