Re: ldirectord fork a new daemon?

On Tue, Aug 30, 2005 at 08:57:33AM +0000, Eric Chan wrote:
> Hi, 
> 
> We have modified the /usr/sbin/ldirectord perl script. The aim is to add a 
> check_process function using rsh to check for existence of remote process.
> 
> For the ldirectord, there is the below procedure
> 
> sub ld_daemon
> 
> This seems to cause our system call to rsh to fork a new daemon. 
> 
> system("rsh 192.168.0.111 ps -ef|grep java");
> 
> As a result, there are many time_wait for the port 514 (rsh listen port) on the 
> ldirectord side. [netstat -na|grep 514 show many time_wait]
> 
> Is there any ways to solve this problem? We don't want to have so much 
> time_wait. Thx.
> 
> Best regards,

ld_deaemon() is run as part of ldirectord's initilalisation sequence
to detatch it from the terminal, and do other things that are
appropirate for a deamon. Once ldirectord is up and running,
it should not have any effect on child processes, unless
they expect to be attached to a terminal (perhaps rsh does).

On a related note, if you want to call system() from inside
ldirectord I recommend using system_wrapper()

-- 
Horms


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