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Full Discussion: Killing host connection
Operating Systems Linux Debian Killing host connection Post 49170 by Perderabo on Friday 26th of March 2004 07:40:38 PM
Old 03-26-2004
Quote:
Originally posted by druuna
True.

But am I incorrect by stating that the connection is no longer active and the 'closing negotiations' are sent. Killing a connection in FINWAIT2 state seems pointless (to me, that is Smilie ).
Well, yeah but that's because you do things correctly. Smilie

People write servers that connect to pc's. The pc's are powered off. Then someone wants to kill and restart the server. Because connections are in FINWAIT2, the bind fails.

To get into this state they had to:
1. bypass inetd so that one global bind() is not performed at startup.

2. connect to clients that fail to do a proper shutdown.

3. write goofy code so that the server needs to be restarted

4. forget to set SO_REUSEADDR which would instruct the kernel to ignore the FINWAIT2 connections during a bind()

Believe or not, this happens all the time. Go figure. Many OS's will now time out FINWAIT2 connections which is not good. Other OS's have a way to manually close a FINWAIT2 connection. This is what I think the OP wants.
 

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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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