My sqoop2 suddenly die and unable to start since 2 days ago, I have not changed any settings on sqoop2, I checked the /var/log/sqoop2 catalina log it says:Mar 14, 2016 2:06:17 PM org.apache.catalina.core.AprLifecycleListener initINFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib<br>Mar 14, 2016 2:06:18 PM org.apache.coyote.http11.Http11Protocol initINFO: Initializing Coyote HTTP/1.1 on http-12000<br>Mar 14, 2016 2:06:18 PM org.apache.catalina.startup.Catalina loadINFO: Initialization processed in 2661 ms<br>Mar 14, 2016 2:06:18 PM org.apache.catalina.core.StandardService startINFO: Starting service Catalina<br>Mar 14, 2016 2:06:18 PM org.apache.catalina.core.StandardEngine startINFO: Starting Servlet Engine: Apache Tomcat/6.0.44<br>Mar 14, 2016 2:06:18 PM org.apache.catalina.startup.HostConfig deployWARINFO: Deploying web application archive sqoop.war<br>Mar 14, 2016 2:06:32 PM org.apache.catalina.startup.HostConfig deployDirectoryINFO: Deploying web application directory ROOT<br>Mar 14, 2016 2:06:33 PM org.apache.coyote.http11.Http11Protocol startINFO: Starting Coyote HTTP/1.1 on http-12000<br>Mar 14, 2016 2:06:33 PM org.apache.catalina.startup.Catalina startINFO: Server startup in 15277 ms<br>Mar 14, 2016 2:06:33 PM org.apache.catalina.core.StandardServer awaitSEVERE: StandardServer.await: create[8005]:java.net.BindException: Address already in useat java.net.PlainSocketImpl.socketBind(Native Method)at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376)at java.net.ServerSocket.bind(ServerSocket.java:376)at java.net.ServerSocket.<init>(ServerSocket.java:237)at org.apache.catalina.core.StandardServer.await(StandardServer.java:404)at org.apache.catalina.startup.Catalina.await(Catalina.java:676)at org.apache.catalina.startup.Catalina.start(Catalina.java:628)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)<br>Mar 14, 2016 2:06:33 PM org.apache.coyote.http11.Http11Protocol pauseINFO: Pausing Coyote HTTP/1.1 on http-12000<br>Mar 14, 2016 2:06:34 PM org.apache.catalina.core.StandardService stopINFO: Stopping service Catalina<br>Mar 14, 2016 2:06:34 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc<br>SEVERE: The web application [/sqoop] registered the JDBC driver [org.apache.derby.jdbc.AutoloadedDriver40] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.<br>Mar 14, 2016 2:06:35 PM org.apache.coyote.http11.Http11Protocol destroyINFO: Stopping Coyote HTTP/1.1 on http-12000Does anyone have any idea?Thanks!
sqoop2 fail to start
linux;hadoop
This seems to be the relevant part of the log:java.net.BindException: Address already in useMost likely cause is either:sqoop2 is already running (but in a mostly-dead state, not responding or doing anything useful but still running.  i.e. hung rather than crashed).Check with ps aux | grep sqoop.  Kill it if it's running, then restart.Or:something else is running which is using the same port.  Try running netstat -tupan | grep :port (where port is the port number sqoop2 wants to bind to).  Kill it and start sqoop2.