[Sqlrelay-discussion] Dead children (zombies and sem undo)

[Renat S. <sr...@st...>]

Hi David,

Did you mention that zombie connections hanging around when scaler does 
not receive signal(6) for some time? I made a patch that use timed 
wait() on sem(6) and reap dead children every 5 seconds.

This patch solve one more issue. Did you know that undo information on 
semaphore operations processed after process completely dies, i.e. after 
the father executes waitpid(). For this reason it is very important to 
reap children in time.

-- 
Renat Sabitov   e-mail: sr...@st...
Stack Soft         jid: sr...@ja...