TTYredirector Knowledge Base

When sending data or printing, characters are lost or nothing happens, how can this be fixed?

TTYredirector version 4.0.1 adds the following option that can be configured on a per-tty basis:

"-ptyclosedelay" (or "-t"), which is the number of milliseconds to hold the pty open.  Default is zero (i.e., previous behavior).

This delay will help in situations where the pty is closing quickly and data loss occurs (such as with printing).

Our testing shows that using 20000ms (trconfig -tty yourtty -t 20000) should easily fix the problems with printing.  You may be able to use a value no greater than 5000-10000 and see the same results.

Please note:  Specifying "-ptyclosedelay 3000 -closedelay 6000", the connection to the server will finally be shut down 9 seconds later (3 + 6).  Essentially the ptyclosedelay option prevents the master pty from being closed, and hence doesn't report this to the redirector back-end, and once the pty is closed (and redirector back-end is informed) the original closedelay implementation takes over. 

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