We have someone troubleshooting a timesten error and they believe the issue has to do with the shared memory size on the system. They want to know what the value of it is. So, I'm hunting.
I found this command: ipcs -b - That shows the shared memory for system, who owns it, segment size and some other information.
Thanks for the link. I'll have a look and see what it offers.
---------- Post updated at 12:41 PM ---------- Previous update was at 12:20 PM ----------
I looked at the link and it showed information that I had already seen. I'm looking specifically for a value of the Shared Memory on AIX 5.3.
---------- Post updated at 04:39 PM ---------- Previous update was at 12:41 PM ----------
After more research, I found this is a parameter in the oracle db. Using the below command against the DB I was able to get the info.
Hello,
I 've trie to execute a a program with parameters unsuccessfully and i take the above message :
"The system cannot find the path specified."
I used a variaton of the above command :
system("\"C:\\xxx\\xxx\\xxx.exe -xxx -xxx xxx.xxx xxx.xxx xxx.xxx\"");
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Discussion started by: Tjsureboy4me
9 Replies
LEARN ABOUT DEBIAN
ipc::sharedmem
IPC::SharedMem(3perl) Perl Programmers Reference Guide IPC::SharedMem(3perl)NAME
IPC::SharedMem - SysV Shared Memory IPC object class
SYNOPSIS
use IPC::SysV qw(IPC_PRIVATE S_IRUSR S_IWUSR);
use IPC::SharedMem;
$shm = IPC::SharedMem->new(IPC_PRIVATE, 8, S_IRWXU);
$shm->write(pack("S", 4711), 2, 2);
$data = $shm->read(0, 2);
$ds = $shm->stat;
$shm->remove;
DESCRIPTION
A class providing an object based interface to SysV IPC shared memory.
METHODS
new ( KEY , SIZE , FLAGS )
Creates a new shared memory segment associated with "KEY". A new segment is created if
o "KEY" is equal to "IPC_PRIVATE"
o "KEY" does not already have a shared memory segment associated with it, and "FLAGS & IPC_CREAT" is true.
On creation of a new shared memory segment "FLAGS" is used to set the permissions. Be careful not to set any flags that the Sys V IPC
implementation does not allow: in some systems setting execute bits makes the operations fail.
id Returns the shared memory identifier.
read ( POS, SIZE )
Read "SIZE" bytes from the shared memory segment at "POS". Returns the string read, or "undef" if there was an error. The return value
becomes tainted. See shmread.
write ( STRING, POS, SIZE )
Write "SIZE" bytes to the shared memory segment at "POS". Returns true if successful, or false if there is an error. See shmwrite.
remove
Remove the shared memory segment from the system or mark it as removed as long as any processes are still attached to it.
is_removed
Returns true if the shared memory segment has been removed or marked for removal.
stat
Returns an object of type "IPC::SharedMem::stat" which is a sub-class of "Class::Struct". It provides the following fields. For a
description of these fields see you system documentation.
uid
gid
cuid
cgid
mode
segsz
lpid
cpid
nattach
atime
dtime
ctime
attach ( [FLAG] )
Permanently attach to the shared memory segment. When a "IPC::SharedMem" object is attached, it will use memread and memwrite instead
of shmread and shmwrite for accessing the shared memory segment. Returns true if successful, or false on error. See shmat.
detach
Detach from the shared memory segment that previously has been attached to. Returns true if successful, or false on error. See shmdt.
addr
Returns the address of the shared memory that has been attached to in a format suitable for use with "pack('P')". Returns "undef" if
the shared memory has not been attached.
SEE ALSO
IPC::SysV, Class::Struct
AUTHORS
Marcus Holland-Moritz <mhx@cpan.org>
COPYRIGHT
Version 2.x, Copyright (C) 2007-2010, Marcus Holland-Moritz.
Version 1.x, Copyright (c) 1997, Graham Barr.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2011-09-19 IPC::SharedMem(3perl)