Hi,
On Mon, Aug 24, 2009 at 11:35:15AM -0400, Karl W. Lewis wrote:
> I don't know if anyone else is running Heartbeat/Pacemaker on an Egenera
> BladeFrame, but if they are, these scripts might be useful to help set up
> stonith.
>
> The Egeneras use an IPMI arrangement to control the various processor
> blades, and these routines take advantage of that.
Did you try ipmilan or external/ipmi too?
> This may not be the best method of doing it, but it does appear to work.
> It is not fast. What it lacks in speed, however, it makes up for in
> flexibility. It can figure out which c-blade is the master, and then figure
> out which p-blade is running the server to be stonithed, and then stonith,
> it. The framework for this was an existing external stonith script that I
> simply modified to meet my needs.
>
> The two short shell scripts at the top need to live in /root/bin/ on both
I guess you wanted to say $HOME/bin. Note that the root user may
not always have the same home directory. Perhaps it would be
better to go with an absolute path such as /usr/local/bin.
> control blades. The cluster servers need to have ssh keys and any required
> firewall rules setup such that root on the cluster servers can ssh to the
> c-blades.
There can be more than one? Is that covered in any way by the
script, i.e. does it try all available?
> If anyone else is already doing this and has a better way, I'd be happy to
> hear about it.
>
> Karl
> ### THESE TWO SHELL SCRIPTS ARE EXPECTED IN /root/bin ON BOTH c-blades
> ### THAT WAY THE SCRPIT THAT FOLLOWS WILL WORK REGARDLESS OF WHICH
> ### EGENERA c-blade IS PAN-MASTER
>
> #!/bin/bash
> # get_master.sh - returns the name of the master control blade in the
> PAN.
>
> MASTER=`/opt/panmgr/bin/esh pan | grep ^c | grep Master | cut -c 2`
> echo "cblade-${MASTER}"
> #CUT HERE #############################################################
>
> #!/bin/bash
>
> # get_processor_blade.sh - identifies the blade running a given pserver.
This name doesn't exactly match the references in the script.
> BLADE=`/opt/panmgr/bin/esh pan | grep ^${1}`
> echo ${BLADE} | sed -e "s/^.*MyBladeFrame\/\(.\)\(.\) .*/a\1-\2/"
> #CUT HERE #############################################################
>
> #!/bin/bash
> #
> # External STONITH module for Egenera.
> #
> # Copyright (c) 2004 SUSE LINUX AG - Lars Marowsky-Bree <[email protected]>
> # Copyright (c) 2009 Karl W. Lewis <[email protected]>
> # This program is free software; you can redistribute
> #it and/or modify # it under the terms of version 2 of the GNU General
> #Public License as # published by the Free Software Foundation.
> #
> # This program is distributed in the hope that it would be useful, but
> # WITHOUT ANY WARRANTY; without even the implied warranty of
> # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> #
> # Further, this software is distributed without any warranty that it is
> # free of the rightful claim of any third person regarding infringement
> # or the like. Any license provided herein, whether implied or
> # otherwise, applies only to this software file. Patent licenses, if
> # any, provided herein do not apply to combinations of this program with
> # other software, or any other product whatsoever.
> #
> # You should have received a copy of the GNU General Public License
> # along with this program; if not, write the Free Software Foundation,
> # Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
> #
>
> SSH_COMMAND="/usr/bin/ssh"
>
> #LOG=/var/log/egenera-stonith.log
> #echo `date` >> $LOG
> #echo $hostlist >> $LOG
> #echo $1 >> $LOG
> #echo $2 >> $LOG
> #echo "executing--------------" >> $LOG
>
> # Rewrite the hostlist to accept "," as a delimeter for hostnames too.
> hostlist=`echo $hostlist | tr ',' ' '`
>
> is_host_up() {
> for j in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
> do
> if
> ping -w1 -c1 "$1" >/dev/null 2>&1
> then
> sleep 10
> else
> return 1
> fi
> done
> return 0
> }
This is from external/ssh and used only if the parameter
livedangerously is set to yes. Doesn't strike me as a very robust
way to check if a node is running. Is there another way? Using
the cblades sounds like a most natural way.
> MASTER_BLADE=`$SSH_COMMAND cblade-1 "bin/get_master.sh" | tail -1`
>
> case $1 in
> gethosts)
> for h in $hostlist ; do
> echo $h
> done
> exit 0
> ;;
> on)
> for h in $hostlist
> do
> if
> [ "$h" != "$2" ]
> then
> continue
> else
> P_BLADE=`$SSH_COMMAND $MASTER_BLADE
> "bin/get_processor-blade.sh $h"`
> $SSH_COMMAND $MASTER_BLADE "echo 'please' >
> /proc/egenera/ipmi/node/$P_BLADE/control/on"
> fi
> sleep 30
> if
> is_host_up $h
> then
> exit 1
> else
> exit 0
> fi
> done
> exit 0
> ;;
> off)
> for h in $hostlist
> do
> if
> [ "$h" != "$2" ]
> then
> continue
> else
> P_BLADE=`$SSH_COMMAND $MASTER_BLADE
> "bin/get_processor-blade.sh $h"`
> $SSH_COMMAND $MASTER_BLADE "echo 'please' >
> /proc/egenera/ipmi/node/$P_BLADE/control/off"
> fi
> done
> exit 0
> ;;
> reset)
> for h in $hostlist
> do
> if
> [ "$h" != "$2" ]
> then
> continue
> else
> P_BLADE=`$SSH_COMMAND $MASTER_BLADE
> "bin/get_processor-blade.sh $h"`
> $SSH_COMMAND $MASTER_BLADE "echo 'please' >
> /proc/egenera/ipmi/node/$P_BLADE/control/nmi"
> fi
> sleep 20
> if
> is_host_up $h
> then
> exit 1
> else
> exit 0
> fi
> done
> exit 1
> ;;
on), off), and reset) cases are very similar, they should be made
to share some code. Also, the sleep values look too ephemeral for
my taste. There should be a relatively tight loop to check the
host status.
> status)
> if
> [ -z "$hostlist" ]
> then
> exit 1
> fi
> for h in $hostlist
> do
> if
> ping -w1 -c1 "$h" 2>&1 | grep "unknown host"
The status should return the status of the device, not the status
of a node.
Cheers,
Dejan
> then
> exit 1
> fi
> done
> exit 0
> ;;
> getconfignames)
> echo "hostlist"
> exit 0
> ;;
> getinfo-devid)
> echo "Egenera STONITH device"
> exit 0
> ;;
> getinfo-devname)
> echo "Egenera STONITH external device"
> exit 0
> ;;
> getinfo-devdescr)
> echo "Egenera-based Linux host reset"
> exit 0
> ;;
> getinfo-devurl)
> echo "http://www.egenera.com";
> exit 0
> ;;
> getinfo-xml)
> cat << EGENERAXML
> <parameters>
> parameter name="hostlist" unique="1" required="1"> <contenttype="string" />
> <shortdesc lang="en"> Hostlist </shortdesc>
> <longdesc lang="en"> The list of hosts that the STONITH device controls
> </longdesc>
> </parameter>
> </parameters>
> EGENERAXML
> exit 0
> ;;
> *)
> exit 1
> ;;
> esac
>
>
>
>
> _______________________________________________
> Linux-HA mailing list
> [email protected]
> http://lists.linux-ha.org/mailman/listinfo/linux-ha
> See also: http://linux-ha.org/ReportingProblems
_______________________________________________
Linux-HA mailing list
[email protected]
http://lists.linux-ha.org/mailman/listinfo/linux-ha
See also: http://linux-ha.org/ReportingProblems
