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Full Discussion: Port hang issue in AIX Version 5.3
Operating Systems AIX Port hang issue in AIX Version 5.3 Post 302343151 by subharai on Tuesday 11th of August 2009 08:39:17 PM
Old 08-11-2009
Port hang issue in AIX Version 5.3
On AIX platform we are having Weblogic 8.1 as the middleware for an application.

The application is deployed in Weblogic on AIX platform and the server is having 2 dedicated listening ports for any incoming requests.

Output for netstat -an command for the port 30001 is as follows:-

tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.20501 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.47428 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.48077 ESTABLISHED
tcp 0 0 *.30001 *.* LISTEN
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.52664 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.53170 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55643 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55667 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55668 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55669 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55680 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55691 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55694 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55703 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55719 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55753 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55755 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55758 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55761 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55762 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Y.Y.Y.Y.55781 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.54436 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.54891 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.55333 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.31796 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.31979 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.32428 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.59195 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.59314 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.10405 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.59457 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.12872 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.12943 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.39168 ESTABLISHED
tcp4 0 0 X.X.X.X.30001 Z.Z.Z.Z.42803 ESTABLISHED

With time the no. of established connection get increased and as soon as the count reaches more than 300 the port gets hanged.

The only workaround as of now available to us is to bounce the application server to bring up the ports in listening status.

FYI, the ip's Y.Y.Y.Y and Z.Z.Z.Z can be connected through telnet.

Please suggest how to release these established ports without restarting the application.

Let me know if you require any further information.

Thank U in advance.
 

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LEARN ABOUT SUNOS

asadmin-list-jdbc-connection-pools

asadmin-list-jdbc-connection-pools(1AS) 			   User Commands			   asadmin-list-jdbc-connection-pools(1AS)

NAME

       asadmin-list-jdbc-connection-pools, list-jdbc-connection-pools - gets all the JDBC connection pools

SYNOPSIS

       list-jdbc-connection-pools  --user  admin_user  [--password  admin_password] [--host localhost] [--port 4848][ [--secure|-s] --passwordfile
       filename] [--terse=false] [--echo=false] [--interactive]

       Gets all the JDBC connection pools. This command is supported in remote mode only.

OPTIONS

       --user		       authorized domain application server administrative username.

       --password	       password to administer the domain application server.

       --host		       machine name where the domain application server is running.

       --port		       port number of the domain application server listening for administration requests.

       --secure 	       if true, uses SSL/TLS to communicate with the domain application server.

       --passwordfile	       file containing the domain application server password.

       --terse		       indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well-
			       formatted data for consumption by a script.

       --echo		       setting to true will echo the command line statement on the standard output.

       --interactive	       prompts you for the required options that are not already specified.

       Example 1: Using list-jdbc-connection-pools

       asadmin> list-jdbc-connection-pools --user admin
       --password adminadmin --host fuyako --port 7070 server
       XA_connection_pool

       Where: XA_connection_pool is the JDBC connection listed.

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

       asadmin-create-jdbc-connection-pool(1AS), asadmin-delete-jdbc-connection-pool(1)

J2EE 1.4 SDK							    March 2004				   asadmin-list-jdbc-connection-pools(1AS)
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