I have a problem with running my sample Spring Boot Application.
When I try to run it, this error occurs:
java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:473)
o.apache.catalina.core.StandardService : Failed to initialize connector [Connector[org.apache.coyote.http11.Http11NioProtocol-8080]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[org.apache.coyote.http11.Http11NioProtocol-8080]]
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
at org.apache.catalina.core.StandardService.initInternal(StandardService.java:559)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:814)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139)
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:335)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:57)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:52)
at
Is it ok the first time you run it, and run it again you get an error?
If this is the case, You need to stop service before running again.
Here is a way to stop.
Click the stop button that looks like this:
"Address already in use" means, there is already another application running on port 8080. Use your OS tools to find that process and end it, before you start your application, or let your application run on another port. If you use an embedded server in your Boot application, you can specify the following property:
server.port=8085
Of course you can choose whatever port you want.
I have a very simple solution:
As the answer above stated, when you start Spring Boot app, the PID of underneath server(Tomcat or Undertow, or whatever) will be shown in the console; you may start again the app without terminating the former one, especially when you are in debug mode, thus the error. This applies to Intellij, too.
But, if you have started again, the PID is no longer available for you because previous session output is cleared.
So, if you are using Eclipse, just close it, and open Task Manager to terminate other java.exe JVM process. Be sure that you have no other JVM-based services running which cannot be stopped. (Like Kafka server, Apache Storm, etc.)
The Tomcat instance is one of them.
Log shows that server is already started on port 8080. I faced the same problem. go to windows task manager and end process that is javaw.exe, it worked on my application.
Two possibilities
P1.Another Application is using port 8080
Solution:-
a.Stop that application and free port 8080 for your application.
b.Change your application server port, for that create a file named
application.properties in resource folder and add property
server.port = 8085
(8085 can be replaced by any port number of your choice which will not conflict with other
application server ports)
location of application.properties file
snippet of application.properties file
P2. Your application is already running
Solution
a. Pretty simple solution for this situation is stop your currently
running application and rerun it
b.If you want to run multiple instances of your application then keep
current application running change server port as explained above and
run the application the new instance will run of another port.
Even I faced this issue u can just stop the application(there is a stop button on the top toolbar) and restart again it worked for me and I used STS
In the Eclipse situation, check if there are items running in the window "Progress"(Windows > Show View > Progress)
Stop the running process, which might be locking your desired port.
Got the same error.
The springboot application has inbuilt tomcat server which runs on port 8080..if you have any other process currently running on port 8080,The java.net.BindException will raise..so kill the processes which are using 8080 thorugh cmd as follows:
-->
open command prompt as Administrator.
--> netstat -ano | findstr :<PORT>
netstat -ano | findstr :8080
TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 10568
TCP [::]:8080 [::]:0 LISTENING 10568
-->taskkill /PID <PID> /F
taskkill /PID 10568 /F
Now if you want recheck your running process by using netstat -ano | findstr :8080 command..
and again restart or rerun our application..
This is for first ever time you wanted to run springboot application.
Hope this might be helpfull,worked for me :)
Second case:
In the first time you run ok right? and run again it got an error? If right, You need stop service before run again..if it is the case follow #Sang9xpro
answer above.
Seems your server is already up. If you are using linux based system, type following command in terminal to check which port is active on your system.
"ps -ef | grep 8080"(or whatever port is mentioned)
Now you need to kill this one if you wish to run the server on same port.
kill -9 8080
Voilla!! Try booting your application once again and it will work.
Extra:
You'll come to me complaining an important application is already listening on mentioned port(8080) and you do not want to kill it. No probs.
Create an application.properties file inside your resource folder and change port to whatever you like.
server.port = 8081
Voilla!! You did it!! :)
Let me know if further clarifications required.
This is because you have run the spring boot application once in your eclipse IDE and closed the application and you assume that the embedded server is stopped. But it is not the case. Even after you closed your application in Eclipse -> Console window, embedded tomcat server is running. What you can do is, run your spring boot application again and look at the console messages. Immediately after Spring Logo, you can find Starting on with PID 16676. This is the PID you need to search in "Wndows Task Manager -> Processes -> PID". Select that process and "End Task". Now if you start your spring boot application, it will start without issues.
Related
Terminated by clicking on Red Icon in console tab but when I rerun it is saying port is already in use.
I terminated port using Taskkill command in command prompt. Any suggestions on terminating it from Eclipse would be helpful instead of command prompt
Usually terminating application from Eclipse helps. Sometimes, though, it doesn't help. In such cases, I have to restart the eclipse. Unfortunately, I don't have any better solution. There might be something wrong with your application, if this issue happens too often for you. Eclipse usually tries to "gracefully" shut down the application and release resources, before shutting down the server. Maybe during this time the application "hangs" and doesn't respond. There could be many reasons for that. One of them: your application doesn't close file resources correctly, with try... finally, and so on.
To summarise: In 95% of the cases, shutting down the server from eclipse works. If it doesn't, then you have to restart the eclipse, or maybe even kill the process from the command-line. If it happens too often, let's say in 50% of the cases, then there is something wrong with your application.
Open Eclipse
Go to Servers panel
Right click on Tomcat Server select Open, Overview window will appear.
Open the Portstab. You will get the following:
Tomcat adminport
HTTP/1.1
AJP/1.3
I changed the port number of HTTP/1.1 (i.e. to 8081)
You might have to also change the port of Tomcat adminport (i.e. to 8006) and of AJP/1.3 (i.e. to 8010).
Access your app in the browser at http://localhost:8081/...
I found the best way to stop spring from holding the port was to write a script that looks for the process holding the port and auto kill it. Then attach that script to an external tool job in eclipse. I adapted a powershell script I found. Called it kill-port.ps1 and is located in base of the report where I had the issue.
param ($port)
$foundProcesses = netstat -ano | findstr :$port
$activePortPattern = ":$port\s.+LISTENING\s+\d+$"
$pidNumberPattern = "\d+$"
IF ($foundProcesses | Select-String -Pattern $activePortPattern -Quiet) {
$matches = $foundProcesses | Select-String -Pattern $activePortPattern
$firstMatch = $matches.Matches.Get(0).Value
$pidNumber = [regex]::match($firstMatch, $pidNumberPattern).Value
taskkill /pid $pidNumber /f
}
Then set up an external tool configuration
Location: C:\WINDOWS\system32\windowspowershell\v1.0\powershell.exe
Argument: ${workspace_loc:/workspacename/kill-port.ps1} 8080
Now I just run the kill command after each test where I know it leaves the port bond to a process. Not the most elegant but easier then running a few commands in a shell. This is windows specific but I am sure the same type script can be created for Unix.
I have a project on Spring with maven build. (Eclipse IDE on Windows). When I run my Spring Boot application I am getting this error
***************************
APPLICATION FAILED TO START
***************************
Description:
The Tomcat connector configured to listen on port 8080 failed to start. The port may already be in use or the connector may be misconfigured.
Action:
Verify the connector's configuration, identify and stop any process that's listening on port 8080, or configure this application to listen on another port.
I have tried to listen to another port (using application.properties file) but the error still persists.
I have also tried command line to kill my process using these two lines.
// Step 1
netstat -ano | findstr :yourPortNumber
//Step 2
taskkill /PID typeyourPIDhere /F
I think my tomcat is misconfigured for the project. Weirdly, it seems to work on another project but on this one. How can that be possible? Thanks for the help in advance.
EDIT:
I am sorry but I forgot to mention that I wanted to run Tomacat on my PC's IP. It is working fine for localhost.
Here is my application.properties file:
spring.http.multipart.enabled=false
server.address=172.27.86.141
server.port=8080
I am trying to run a Spring MVC demo file on Eclipse oxygen when I hit the button run as> run on server it shows the following error after a moment
Port 8080 required by Tomcat v8.5 Server at localhost is already in use. The server may already be running in another process, or a system process may be using the port. To start this server you will need to stop the other process or change the port number(s)
Step 1: (open the CMD command)
C:\Users\username>netstat -o -n -a | findstr 0.0:8080
TCP 0.0.0.0:3000 0.0.0.0:0 LISTENING 3116
Now , we can see that LISTENING port is 3116 for 8080 ,
We need to kill 3116 now
Step 2:-
C:\Users\username>taskkill /F /PID 3116
Step 3: Go to Eclipse and start Server , it will run
OR
you can change port number in folder servers>Tomcat>server.xml
A process is already listening on port 8080 and you can't have more than one process listening on the same port.
You have two options :
Kill the existing process if it's not usefull
netstat -tulpn | grep :8080
Change you application port. In your application.properties and file add this line server.port=8081
in your apache conf folder, open the httpd file and look for 8080 port. Change 8080 to any port you like. I believe you will find 8080 on two places
please kill the java process from task manager if windows, else if linux system kill -9 tomcat
You can just change the default port of your Tomcat server if the problem persists.
Always Kill the process before deploying your war file in tomcat
ps -A|grep tomcat It will list all tomcat process. Note Down the PID and run
KILL <PID>
Cross check by ps -A|grep tomcat
I face the same problem and after searching the answer as shown below:
1. open Monitor Tomcat as shown below:
Simply press stop as shown in below picture:
Finally it works with me after many trials and suggested solutions.
Best Regards,
Kerelos Mikhail
My method is to run tomcat7w.exe to disable it. (Only Stopping it is not enough). And my Kaspersky (Anti virus) generate some new rules for eclipse and java.
Followed below steps and was able to solve the issue:
C:\Users\Sri Priya P Kulkarni>netstat -o -n -a | findstr 0.0:8080
TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 13196
C:\Users\Sri Priya P Kulkarni>taskkill /F /PID 13196
SUCCESS: The process with PID 13196 has been terminated.
you can go in servers > server.xml.in server.xml file u should changes like,
step 1)
step 2)
step 3) <Connector port="8010" protocol="AJP/1.3" redirectPort="8443"/> and save the changes .
i am facing the issue in webshpere ..the server is not staringReading configuration for server: server1
ADMU3028I: Conflict detected on port 8896. Likely causes: a) An instance of
the server server1 is already running b) some other process is
using port 8896
ADMU3027E: An instance of the server may already be running: server1
ADMU0111E: Program exiting with error:
com.ibm.websphere.management.exception.AdminException: ADMU3027E: An
instance of the server may already be running: server1
The error seems quite explicit: another program is using port 8896.
To verify this you can use these commands:
(Linux) sudo netstat -lptu|grep 8896
(Windows) netstat -a -b (or other tools)
You can decide to stop the process that create the conflict or change the ports used by WAS:
Updating ports in existing profile
This can be caused when the services don't shut down correctly and the java.exe processes hold a lock on the applications port. (8896).
To resolve this problem you can use one of the following options.
1) Open your taskmanager and end task the java.exe process for your JVM that is holding a lock on the servers port then restart the JVM from the WebSphere console
2) You can restart the physical server so the java.exe process shuts down and releases the port. Once the server starts back up you can start JVM and bring the application up.
When I add the following Java options to enable debugging:
JAVA_OPTS="$JAVA_OPTS -noverify -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005"
I get the following error whenever I try to shutdown the tomcat:
ERROR: transport error 202: bind failed: Address already in use ["transport.c",L41]
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510) ["debugInit.c",L500]
JDWP exit error JVMTI_ERROR_INTERNAL(113): No transports initializedFATAL ERROR in native method: JDWP No transports initialized, jvmtiError=JVMTI_ERROR_INTERNAL(113)
Thank you for a nice short explanation, PHeath! Following your advice, I found the best way to solve the problem is simply to use CATALINA_OPTS instead of JAVA_OPTS.
Looking into catalina.sh, one can see CATALINA_OPTS is only used by the "start" and "start-security" commands, whereas JAVA_OPTS is also used by the "stop" command (at least with Tomcat 6.0.33 on openSUSE 12.1).
At least if you have Tomcat installed on Linux using a package manager then modifying the CATALINA_OPTS variable in /etc/tomcat6/tomcat6.conf (or whatever path in your distribution) is cleaner than changing the catalina.sh script directly, for the package manager assumes that the user changes only configuration files and breaking this assumption may cause problems when upgrading the Tomcat packages (e. g. lost settings because the catalina.sh file is overwritten).
I think one should prefer CATALINA_OPTS over JAVA_OPTS not only for JDWP but for many other options as well: e. g. if one uses the heap size option -Xmx... then it would be reasonable to put it into CATALINA_OPTS, as the "stop" command does not need much heap.
You are trying to debug tomcat on startup, so it binds to port 5005 when the jvm starts.
When you run catalina.sh stop, it starts up another jvm which also tries to bind to port 5005.
You need to move the debug args to the run and start arguments (in catalina.sh) of tomcat, putting them straight into the JAVA_OPTS is the cause of the issue you're having.
The problem is your tomcat is still running on the debug port(5005) or some other service running on the same port(5005).
If tomcat still running, you can kill it
if it in linux environment ps -ef|grep java, and identify the process id of it. and kill the process using sudo kill -9 .
If it in windows environment got to task manager and kill the tomcat and java process.
Now you should be able to start the server in debug mood without any prob.
This can happen on debugging unit test through the tool(eclipse) which has been executed through the maven. To sole this you can flow the same process.
First close the Eclipse and kill the java process as well and start it again.
This is due to both applications are listening the same port number i.e 8000 while running in debug mode.
One quick solution is change the debug port to 8001 in startup.bat
SET DEBUGPORT=8001
It seems that the port 5005 is already in use. Check open ports with netstat command.
This may be because you already opened tomcat. Check your processes.
It appears you are starting Tomcat with the Debugger enabled, This causes the JVM to attach to the Process for Debugging, However in the catalina.sh there is a case statement for start, stop, restart, so on and so forth. Issuing the stop command still adds this in as it is part of your Global JAVA_OPTS and tries to start the debugger listening on the same port for the shutdown command. If you remove the address=50005 from your JAVA_OPTS or use the start jdpa commands to start the VM with the debugger this will fix your problem.
Look at the default catalina.sh in the latest Tomcat distribution if you need a clean copy. It sounds like someone has made changes inside yours that are invalid and causing JDPA to run on start, stop, any command issued.
set JPDA_ADDRESS=8001 in catalina.bat i.e debug port
and change all 3 ports in server.xml
In my case (Tomcat installed form tarball) I had those debug options unintentionally set in my env. This fixed the error:
$ unset JAVA_OPTS