Clustering Red Hat Enterprise linux Advanced Platform 5.2 (x86-64 bit) Post: 302301486

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Operating Systems Linux Red Hat Clustering Red Hat Enterprise linux Advanced Platform 5.2 (x86-64 bit) Post 302301486 by kgayyar on Friday 27th of March 2009 03:13:14 AM

03-27-2009

Registered User

Clustering Red Hat Enterprise linux Advanced Platform 5.2 (x86-64 bit)

Hello Professionals,

We have high-end HP rack servers. We need to provide application fail-over for business continuity.

We have done benchmarking of the application on RHEL 5.2 on HP servers to estimate the hardware requirement so as to meet next 3-5 years business growth.

Presently we have installed RHELAP 5.2 OS and cluster suite on all servers. Now while adding members for setting up fencing, we are facing following scenario.

1. On any one of the two servers, we see that the local server is active but the other server is shown as "Not a member".

2. Shutting down of one of the node is resulting into shutting of other server also. Whereas clustering concept is actually reverse of this.

We are using ILO port as a fencing device to achieve clustering.

ON discussions, we were told that we can do clustering over RHELAP 5.2 only using advanced ILO which is generally used for remote administration of servers. Secondly it involves licensing costs also for my organization.

Whereas the clustering is normally achieved by setting heartbeats over ethernet.

I would request you to suggest me any other alternate way to achieve this.

An early resolution would be highly appreciated.

KG

kgayyar

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LEARN ABOUT REDHAT

pstack

PSTACK(1)						     Linux Programmer's Manual							 PSTACK(1)

NAME

       pstack - print a stack trace of running processes

SYNOPSIS

       pstack pid [...]

DESCRIPTION

       pstack attaches to the active processes named by the pids on the command line, and prints out an execution stack trace, including a hint at
       what the function arguments are.  If symbols exist in the binary (usually the case unless you have run strip(1)), then  symbolic  addresses
       are printed as well.

       If the process is part of a thread group, then pstack will print out a stack trace for each of the threads in the group.

RESTRICTIONS

       pstack currently works only on Linux, only on an x86 machine running 32 bit ELF binaries (64 bit not supported).  Also, for symbolic infor-
       mation, you need to use a GNU compiler to generate your program, and you can't strip symbols from the binaries.	For thread information	to
       be dumped, you have to use the debug-aware version of libpthread.so.  (To check, run nm(1) on your pthreads library, and make sure that the
       symbol "__pthread_threads_debug" is defined.)

SEE ALSO

       nm(1), ptrace(2)

AUTHORS

       Ross Thompson <ross@whatsis.com>

       Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>

Red Hat Linux							    Feb 25 2002 							 PSTACK(1)