Friday, December 4, 2009

Can't start the service due to java.io.IOException: Can't open HTTP server socket on port 80

Can't start the service due to java.io.IOException: Can't open HTTP server socket on port 80

When i am starting SAP J2EE Engine 6.20 i am not able to get the homepage at its startup.

I have checked the Cluster_Log and it says

OS: Windows XP VM vendor: Sun Microsystems Inc. VM version: 1.3.1_16-b06 VM type: Java HotSpot(TM) Client VM

SAP J2EE Engine Version 6.20 PatchLevel 100897.20 is starting...

Loading: LogManager ...
Loading: R3StartupManager ...
Loading: ThreadManager ...
Loading: TimeoutManager ...
Loading: MemoryManager ...
Loading: PoolManager ...
Loading: PolicyManager ...
Loading: ConnectionsManipulator ...
Loading: IpVerificationManager ...
Loading: ClusterManager ...
Loading: ClassLoaderManager ...
Loading: PortsManager ...
Loading: LockManager ...
Loading: ServiceManager ...

Loading core services:
Starting core service p4 ... done. (297 ms)
Starting core service security ... done. (78 ms)
Starting core service log ... done. (656 ms)
Starting core service admin ... done. (204 ms)
Starting core service monitor ... done. (235 ms)
Core services loaded successfully.

Loading additional services:
Starting service httptunneling ... done. (109 ms)
Starting service jms ... done. (0 ms)
Starting service telnet ... done. (94 ms)
Starting service shell ... done. (250 ms)
ID000544: Error starting service http. Can't start the service due to java.io.IOException: Can't open HTTP server socket on port 80
ServiceManager: ID000544: Error starting service http. Can't start the service due to java.io.IOException: Can't open HTTP server socket on port 80
Additional services loaded successfully.

Framework -> criticalShutdown Tue Jul 22 13:44:16 IST 2008 Service http startup error!

Here i can notice "Cant open HTTP server socket on port 80".


Ways to solve


Check that your port 80 is not occupied by other running application (eg. IIS or ITS etc.)

Also check that it may be disabled by antivirus software.


Check the services file that this port is not assigned to other application then

http 80/tcp www www-http

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