01-08-2007
Thanks vino. But the problem with the watchdog script is it might get killed under similar circumstances; I mean when a unix server is preparing for rebooting. So, it doesn't seem useful solution.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I need to know how to enter a unix path in a cgi script for a guest book:
example:
My URL is http://www.kitachi.info
I have an html file in the main folder on my site, the file is called :
gbook.html
what would the correct unix path for this file be ???
the part of the script... (1 Reply)
Discussion started by: akitachi
1 Replies
2. Programming
Hi Everybody,
I have gone through man of sigwait and new to UNIX signals. Could anyone explain me about the following lines mentioned in sigwait man help ?
"The selection of a signal in set is independent of the signal
mask of the calling thread or LWP. This means a thread or
LWP can ... (1 Reply)
Discussion started by: md7ahuja
1 Replies
3. UNIX for Dummies Questions & Answers
Hi all,
I was wondering if anyone could help me here.
I have got a Unix Server (Solaris 8) which we access over the network from a Windows NT machine using Exceed. The Unix box has Samba installed so it is very easy to send a signal from Windows to UNIX by simply creating a dummy file which... (3 Replies)
Discussion started by: robbiegregg
3 Replies
4. Shell Programming and Scripting
hey champs,
I have a process running.......i have to catch/trap the signal when the process is being interupted/killed (kill -9 pid) option......
how can i achieve the same thru my process........
let my process is a.sh and it supposed to take 13 mins to complete, but due to some problem ,... (15 Replies)
Discussion started by: manas_ranjan
15 Replies
5. Programming
Hi,
when i compile my java code in UNIX using javac, the class file is getting created. But when i try to run the code using java - classpath command, i get the following error.
----------------------------------------
/u/up11/sample/request:>java -classpath /u/up11/sample/request... (0 Replies)
Discussion started by: satish2712
0 Replies
6. Shell Programming and Scripting
My data is something like shown below.
date1 date2 aaa bbbb ccccc
date3 date4 dddd eeeeeee ffffffffff ggggg hh
I want the output like this
date1date2 aaa eeeeee
I serached in the forum but didn't find the exact matching solution. Please help. (7 Replies)
Discussion started by: rdhanek
7 Replies
7. Shell Programming and Scripting
Dear All
We have JBOSS server running on Linux we need to track Graceful Shutdown(SIGTERM) and Forceful Shutdown(SIGKILL) timestamp and write it into one file, I am new to UNIX Signal processing if is it possible how to detect it?
We generally do
$kill PID For Graceful... (5 Replies)
Discussion started by: mnmonu
5 Replies
8. Solaris
I've read the man page of singal(3) but I still can't quite understand what is the difference between SIGINT, SIGALRM and SIGTERM.
Can someone tell me what is the behavioral difference among these 3 signals in kill command?
Thanks! (2 Replies)
Discussion started by: joe228
2 Replies
9. Programming
Hi all,
Sorry about the title,at first i decided to ask a problem about the signal mechanism,however,i'm now figured it out.Sorry to forget modify the title:wall:.I had a small problem that if i use the code which is commented,the code would get a segment fault,while the above code NOT.what's... (4 Replies)
Discussion started by: homeboy
4 Replies
10. Programming
in a single main() function,so need signal handling. Use Posix Message Queue IPC mechanism , can ignore the priority and other linked list message,to implement the scenario:
client:Knock Knock
server:who's there
client: Eric
Server:Eric,Welcome.
client:exit
all process terminated
... (1 Reply)
Discussion started by: ouou
1 Replies
LEARN ABOUT FREEBSD
watchdog
WATCHDOG(9) BSD Kernel Developer's Manual WATCHDOG(9)
NAME
watchdog -- software and hardware watchdog facility
SYNOPSIS
#include <sys/watchdog.h>
void
watchdog_fn(void *private, u_int cmd, int *error);
EVENTHANDLER_REGISTER(watchdog_list, watchdog_fn, private, 0);
EVENTHANDLER_DEREGISTER(watchdog_list, eventhandler_tag);
DESCRIPTION
To implement a watchdog in software or hardware, only a single function needs to be written and registered on the global watchdog_list.
The function must examine the cmd argument and act on it as follows:
If cmd is zero, the watchdog must be disabled and the error argument left untouched. If the watchdog cannot be disabled, the error argument
must be set to EOPNOTSUPP.
Else the watchdog should be reset and configured to a timeout of (1 << (cmd & WD_INTERVAL)) nanoseconds or larger and the error argument be
set to zero to signal arming of a watchdog.
If the watchdog cannot be configured to the proposed timeout, it must be disabled and the error argument left as is (to avoid hiding the arm-
ing of another watchdog).
There is no specification of what the watchdog should do when it times out, but a hardware reset or similar ``drastic but certain'' behaviour
is recommended.
SEE ALSO
watchdog(4)
AUTHORS
The watchdog facility and this manual page was written Poul-Henning Kamp <phk@FreeBSD.org>.
BSD
February 28, 2004 BSD