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Full Discussion: Restarting a Crashed Process
Top Forums Shell Programming and Scripting Restarting a Crashed Process Post 70705 by Just Ice on Tuesday 3rd of May 2005 08:05:34 AM
Old 05-03-2005
you could also ...

1. count the # of processes running and do nothing if all 10 are there
2. if less than 10 processes, identify which ones are not running and restart them

... if you have the monitor script sleeping and checking every second, your downtime per process will be quiet short ...

however, you might want to fix that hacker issue as soon as possible as anything you can do to fix your process --- they can break ...
 

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LEARN ABOUT NETBSD

crash

CRASH(8)						    BSD System Manager's Manual 						  CRASH(8)

NAME

     crash -- examine and debug system images

SYNOPSIS

     crash [-M core] [-N kernel]

DESCRIPTION

     The crash command is used to examine and debug system images.

     If run without any arguments, crash operates on the running system.

     The options are as follows:

     -M core	   Operate on the specified crash dump instead of the default /dev/mem.  Crash dumps should be from the same version of the system
		   and same machine architecture as the running version of crash, and must be uncompressed.

     -N kernel	   Extract the name list from the specified kernel instead of the default /dev/ksyms.

     The command syntax used by crash is the same as the in-kernel debugger.  See the ddb(4) manual page for more information.

     Operations and facilities that require a running system, such as breakpoints, are not supported by crash.

     crash does not provide pagination.  However, by using the pipe symbol, output may be sent to commands available from the shell.  For example:

	 crash> ps | more
	 crash> ps | grep ioflush

SEE ALSO

     ps(1), vmstat(1), ddb(4), pstat(8)

HISTORY

     The crash command appeared in NetBSD 6.0.

BSD
								   March 7, 2009							       BSD
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