Derby 10.4.2.0. Also experienced with earlier.
Java 1.42_16/1.5_16
Windows XP, 2000, 2003. Might also be case on Linux
Tomcat 4.1, 5.5
Situation:
from the System.out (see below)
Could not listen on port 1527 on host localhost:
java.net.BindException: Address already in use: JVM_Bind
Cause:
Good question. My code is merely
NetworkServerControl nc = new NetworkServerControl();
nc.start(new PrintWriter(System.out));
Comments:
This has been a repeated issue. We USUALLY get around it by retrying
connections for 30 seconds, but not always
eg the next few lines are
Class.forName(DERBY_NETWORK_CLIENT_DRIVER);
} catch (Exception varException)
{
log.info(MSG_INIT_FAILURE);
ErrorHandle.reportError("DerbyStartup", varException);
throw new IllegalStateException("Cannot proceed without Derby!");
}
Connection con=null;
try {
con =
DerbyInitializerServlet.getConnectionWithRetry(ascfg); // retry every 500ms for
30 seconds before giving up
} catch (SQLException e1) {
log.error("Couldn't get Conn with Retry");
} finally {
Parm.close(con);
Derby.log:
Apache Derby Network Server - 10.4.2.0 - (689064) started and ready to accept
connections on port 1527 at 2008-11-12 22:46:13.328 GMT
Could not listen on port 1527 on host localhost:
java.net.BindException: Address already in use: JVM_Bind
An exception was thrown during network server startup. DRDA_ListenPort.S:Could
not listen on port 1527 on host localhost:
java.net.BindException: Address already in use: JVM_Bind
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.derby.iapi.jdbc.DRDAServerStarter.run(Unknown Source)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.Exception: DRDA_ListenPort.S:Could not listen on port 1527
on host localhost:
java.net.BindException: Address already in use: JVM_Bind
at
org.apache.derby.impl.drda.NetworkServerControlImpl.consolePropertyMessageWork(Unknown
Source)
at
org.apache.derby.impl.drda.NetworkServerControlImpl.consolePropertyMessage(Unknown
Source)
at
org.apache.derby.impl.drda.NetworkServerControlImpl.blockingStart(Unknown
Source)
... 6 more
What it's not
- not a firewall issue. Firewall is off
- Not true that derby is running, and netstat -a confirms this.
