IZ2431: need a flag to disable connection timeout in commlib

[pollinger]

[Imported from gridengine issuezilla ​http://gridengine.sunsource.net/issues/show_bug.cgi?id=2431]

        Issue #:      2431                Platform:     Sun           Reporter: pollinger (pollinger)
       Component:     gridengine             OS:        All
     Subcomponent:    communication       Version:      current          CC:    None defined
        Status:       NEW                 Priority:     P3
      Resolution:                        Issue type:    ENHANCEMENT
                                      Target milestone: ---
      Assigned to:    crei (crei)
      QA Contact:     crei
          URL:
       * Summary:     need a flag to disable connection timeout in commlib
   Status whiteboard:
      Attachments:

     Issue 2431 blocks:
   Votes for issue 2431:


   Opened: Mon Nov 26 08:56:00 -0700 2007 
------------------------


In the commlib, the connection_timeout member of the conneciton handle
determines how long a connection should live. By default this is 10 minutes, it
can be set a very long time (several years), but on 32 bit OS it's much shorter.

A clean solution would be to introduce a flag that determines if the timeout
should be obeyed or ignored.

Suggested Fix:
In file: cl_connection_list.c, function:
cl_connection_list_destroy_connections_to_close, line: 305, it is tested if the
connection is to be destroyed:

if (connection->last_transfer_time.tv_sec + h_timeout <= now.tv_sec) {
               if (connection->data_flow_type == CL_CM_CT_MESSAGE) {
                  CL_LOG(CL_LOG_WARNING,"got connection transfer timeout ...");

Here a flag use_connection_timeout could be added to determine if the timeout
should be obeyed. Add this flag to the connection handler struct and create
functions to set and get the state of this flag.