08-29-2013
ipcs resources are kernel persistent. They cannot persist over a reboot. So, what you said appears to be wrong, or you need to do some more explanation - specifically 'database name' - what is it: a key generated by ftok()? What are we doing here?
How do you know that the shared memory for a db was not destroyed then recreated by a reboot? Rather than persisting over reboot.
Or do you mean a db shutdown/restart? We need clarity. And a decent example.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Does anyone know how to set the variables with the ipcs command?
I need to set the following variables:
Shared memory segments
message queues
semaphore arrays
all of these (1 Reply)
Discussion started by: Deuce
1 Replies
2. UNIX Desktop Questions & Answers
do anybody has knowledge how do i increase the character size in the UNIX box (1 Reply)
Discussion started by: subir23
1 Replies
3. AIX
Is there a limit of 512Mb when doing a "chfs -a size=XXXXX /myfs" ?
I managed to increase /var to 512MB fine, no issues, then i wanted to increase /usr to 2Gb, but when i enter:
# chfs -a size=2260992 /usr
chfs: 0506-908 Cannot reduce size... (5 Replies)
Discussion started by: craigp84
5 Replies
4. AIX
hello
i'm running on aix 5300-08-02-0822 hacmp 4
when i run ipcs command there is nio output.
some one got this problem?
best regards
ariec (1 Reply)
Discussion started by: ariec
1 Replies
5. UNIX for Dummies Questions & Answers
Hi!!..
I would like to know what is maximum character size for a command in the "sh" or "bourne" shell?
Thanks in advance..
Roshan. (1 Reply)
Discussion started by: Roshan1286
1 Replies
6. UNIX for Advanced & Expert Users
Hi!!..
I would like to know what is maximum character size for a command in the "sh" or "bourne" shell?
Thanks in advance..
Roshan. (1 Reply)
Discussion started by: Roshan1286
1 Replies
7. Shell Programming and Scripting
Hi!!..
I would like to know what is maximum character size for a command in the "sh" or "bourne" shell?
Thanks in advance..
Roshan. (1 Reply)
Discussion started by: Roshan1286
1 Replies
8. UNIX for Advanced & Expert Users
Hi,
I read the ipcs man page and am still very confused.
Basically, I just want to know whether the output from the ipcs command below means these are the current "TOTAL" memory usage in bytes on the server? Is this correct?
Thanks in advance.
ipcs command output below:
# ipcs... (2 Replies)
Discussion started by: newbie_01
2 Replies
9. Shell Programming and Scripting
Hi
I would just like to ask if there is a way for UNIX to ignore/overcome the 255 character limit of the command line?
My problem is that I have a really long line of text from a file (300+ bytes) which i have to "echo" and process by adding commands like "sed" to the end of the line, like... (5 Replies)
Discussion started by: agentgrecko
5 Replies
10. Solaris
:wall:Dear Solaris 10 Specialists,
I am having difficulty trying to increase the soft stack limit to 16384 for user george on this Solaris 10 SunFire Sparc server as follows:
$ uname -a
SunOS galactica 5.10 Generic_141444-09 sun4v sparc SUNW,SPARC-Enterprise-T5220
% id -p ... (3 Replies)
Discussion started by: gjackson123
3 Replies
HALT(8) halt HALT(8)
NAME
halt, poweroff, reboot - Halt, power-off or reboot the machine
SYNOPSIS
halt [OPTIONS...]
poweroff [OPTIONS...]
reboot [OPTIONS...]
DESCRIPTION
halt, poweroff, reboot may be used to halt, power-off or reboot the machine.
OPTIONS
The following options are understood:
--help
Prints a short help text and exits.
--halt
Halt the machine, regardless of which one of the three commands is invoked.
-p, --poweroff
Power-off the machine, regardless of which one of the three commands is invoked.
--reboot
Reboot the machine, regardless of which one of the three commands is invoked.
-f, --force
Force immediate halt, power-off, reboot. Do not contact the init system.
-w, --wtmp-only
Only write wtmp shutdown entry, do not actually halt, power-off, reboot.
-d, --no-wtmp
Do not write wtmp shutdown entry.
--no-wall
Do not send wall message before halt, power-off, reboot.
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.
NOTES
These are legacy commands available for compatibility only.
SEE ALSO
systemd(1), systemctl(1), shutdown(8), wall(1)
systemd 208 HALT(8)