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Hi fpmurphy

I looked in /usr/share/cluster/script.sh (and I think that's the template for custom app failover?). Here is how it looks like

#
# Script to handle a non-OCF script (e.g. a normal...

Hi Neo

Cluster Admin Guide doesn't speak about setting up 'custom HA agent' or HA for custom applications.

Referring to this guide, i have successfully set up my 2-node red hat cluster; and...

Hi experts, I have some custom application which I need to make Highly Available using red hat cluster service. How do I do it? i know in /usr/share/cluster i shall find HA agents for well known...

Hi all experts,

I need your kind suggestions or feedback on choice of clustering software for red hat linux nodes running certain applications which I need to make highly available.

Minimum...

Hi,

I know :) May be I was not clear enough of what I am trying to do,

The program is as follows -


int main()
{
if( write(STDIN_FILENO,"arghh!",6) == -1 )
{
...

Hi

I know that a.out should be executed as "./a.out" , it was typing mistake.

file.txt is redircted as a.out's standard in put. In my program, I am writing to standard input (as shown in the...

Interesting!

I obtained file status flags of STDIN_FILENO, and it is open for O_RDWR.

Why then .\a.out < file.txt doesn't write "arghh!" to file.txt?

Below code -
#include <iostream>

int main(int argc, char* argv[])
{
std::cout << "argc="<<argc<<" argv="<<argv<<std::endl;
return 0;
}


Displayed output at your end -

argc=0 argv=0
...

rvan (https://www.unix.com/members/302021153.html),

Can you try with 'optimization' off in your compiler flags?(whats your OS and machine)

On most platforms, size of word is size of...

This is because, compiler 'knows' type of array and it places instructions of pointer arithmetic using size of 'type'.

so &array[1] - &array[0] = number of elements of type of 'array' between...

HTTP doesn't keep connection all the time. Isn't it?

@Topic
You can implement a socket program the way you like. Why should anyone want to have connection all the time, even when client and...

Try this -


int main()
{
struct whatever w;
char s;

if( (char*)&w > & z)
printf("Size of whatever %d\n",(char*)&w-&z)
else
printf("Size of whatever...

I was hoping it should produce a correct number, but that would happen in absence of processors not needing any padding at the end of structures

Yes, I guess you can do; something like


#pragma pack(1)
#include <header.h> // Header file which contain opaque structure definition
int main()
{
char begin;
struct...

littleboyblu,

Can you try this one -

void main(){
int *array;
int **ptr = &array;
sub(ptr);
}

void sub(int **ptr){
....//calculates the array dimension
*ptr = calloc(n,sizeof(int));...

Can you get core dump and look at the stack?

Correction -

*ptr has already been initialized with address of local variable 'array' as -
*ptr = &array; in statement int **ptr = &array;

ptr has already been initialized with address of...

Hi Shamrock,

*ptr has already been initialized with address of local variable 'array' as -

*ptr = &array; in statement int **ptr = &array;

ptr(int**) -> array(int*) -> (uninitialized/invalid...