time.
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: http://linux-ha.org/wiki/LSB_Resource_Agents
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nodes? That would make
clustering much easier.
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.
See: http://linux-ha.org/wiki/LSB_Resource_Agents
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the link.
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Best regards
Andreas Mock
export OCF_ROOT=/usr/lib/ocf/resource.d
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read:
http://www.linuxfoundation.org/collaborate/workgroups/networking/bonding
And test your hardware! I have seen interfaces from major hardware
manufacturers that did not recognize unplugging the cable or only half of the
pings comming through.
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Am Mittwoch, 9. Januar 2013, 10:40:42 schrieb Digimer:
On 01/09/2013 08:16 AM, Michael Schwartzkopff wrote:
Am Mittwoch, 9. Januar 2013, 14:09:59 schrieb Andreas Mock:
Hi all,
I'm really interested in the results of testing
several binding modes.
It's interesting that my question
with several interfaces not playing well with bonding (mii, ...).
Perhaps you end up in configuring two separate rings again.
state of a ring:
corosync-cfgtool -s
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.
Perhaps you try option 2) first but in the mid term go for option 3).
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. Perhaps you have to get more familiar
with cluster logs?
Or hire a consultant?
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DNS:
Oct 29 13:41:14 [21723] r3 crmd: notice: corosync_node_name:
Inferred node name 'r4-eth1' for nodeid 2 from DNS
if that does not fit to the name of the node it might cause the problems.
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also could tcpdump the traffic
on the cluster port (default 5405) if the nodes see each other.
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connection and 5405 is your
corosync port?
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unicast in
your corosync configuration. See the udpu README file of corosync.
I had the same problem and the cause was the the virtual bridge or KVM dropped
all multicast packets.
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to be that part where manufacturers
optimize their costs.
If you have errors in the network you eventually loose packets.
corosync/paceamker doesn't like this and sometimes reacts on heavy packet
loss.
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a ClusterMon resource and passing your Script with the -E
option.
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. (MHO)
Regards,
Ulrich
You have to get your fault-detection right. Independent of the mode.
I saw a lot of problems with miimon depending of the network card and driver.
Just test and tweak it until it works.
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as down and close the
communication.
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Am 16.07.2012 um 14:23 schrieb Volker Poplawski:
On 16.07.2012 13:40, Michael Schwartzkopff wrote:
balance-rr
Thanks for the reply, Michael.
But be sure that the host discovers a link failure correct.
Isn't link failure detected by the device driver or the bonding layer
as cluster communication layer - if that matters
Regards
Volker
balance-rr
But be sure that the host discovers a link failure correct.
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think?
I heard there is a very good book from O'Reilly ;-)
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Hi Michael,
the problems starts when I start to think about fencing: I am working with
a standard root server, it simply doesn't have a STONITH hardware. I've
read various
into the cluster with its own resource
agent.
With this setup you even can use the state table sync feature of LVS.
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%2F63383%2F487982%2Ffile%2FClusterip.pdfei=leSLT-
TREInBtAamyvzMCwusg=AFQjCNEQIFTjMd6nVJqW4tHK8RvNwOoXdgcad=rja
Please check if it is still valid for Cisco devices.
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a Filesystem
resource so that the service and its data can move between cluster nodes.
Application data: yes.
For configuration data, like /etc/your-service.conf that changes parhaps once
every half year, you could think about rsync to keep the configs in sync on
the nodes.
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: 10.204.202.0/24
Is there a way around this issue?
Due to the nature of networking there is no way around this. There does not
exist an IP address that is member of both networks.
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to switch your IP address form one node to the other.
But this setup depends on the kind of services you want to offer and the need
for shared storage.
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am not against firing every second.
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get the following error, but everything seems
to work okay...
[root@ha08b ~]# drbdadm up ha02_mysql
/usr/local/var/run/drbd: No such file or directory
/usr/local/var/run/drbd: No such file or directory
Logs? Config?
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Hi,
19.09.2011 13:17, Michael Schwartzkopff wrote:
Hi,
I tested migration with a recent version of libvirt. Essentially it was
from squeeze-backports. The transport qemu+ssh://other_node/system now
needs the additional parameters
--p2p --tunnelled
in the migration command
Il giorno Lun 19 Set 2011 21:20:12 CEST, Michael Schwartzkopff ha scritto:
Il giorno Lun 19 Set 2011 15:17:30 CEST, Michael Schwartzkopff ha
scritto: [...]
What transport do you use? Which version of libvirt?
Transport ssh, libvirt version is 0.9.2-7 (the squeeze-backports
version
Il giorno Mar 20 Set 2011 11:11:58 CEST, Michael Schwartzkopff ha scritto:
[...]
Yes. This happens every time. Also when I use the virsh command line to
migrate the virtual machine.
So the problem is inside libvirt. But are you using the same libvirt
version of mine (0.9.2-7)?
Your
Il giorno Mar 20 Set 2011 12:27:20 CEST, Michael Schwartzkopff ha scritto:
[...]
First tests with tcp show that it also needs the --p2p --tunnelled
options. I did not try sasl.
Greetings,
Very strange. I think that the problem may be somewhere else (network
connection, collisions
qemu+ssh://other_node/system
I will try to write a patch and publish it here.
Greetings,
No patch needed. It just works inside the cluster.
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://other_node/system
I will try to write a patch and publish it here.
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Il giorno Lun 19 Set 2011 12:17:30 CEST, Michael Schwartzkopff ha scritto:
Hi,
I tested migration with a recent version of libvirt. Essentially it was
from squeeze-backports. The transport qemu+ssh://other_node/system now
needs the additional parameters
--p2p --tunnelled
Il giorno Lun 19 Set 2011 15:17:30 CEST, Michael Schwartzkopff ha scritto:
[...]
What transport do you use? Which version of libvirt?
Transport ssh, libvirt version is 0.9.2-7 (the squeeze-backports version).
hu? Have to try again.
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Il giorno Lun 19 Set 2011 15:17:30 CEST, Michael Schwartzkopff ha scritto:
[...]
What transport do you use? Which version of libvirt?
Transport ssh, libvirt version is 0.9.2-7 (the squeeze-backports version).
I get an error:
migration job: unexpectedly failed
Only if I add the above
I have this set up with ldirectord on HA. Do the directors and the real
backend servers have to be on the same subnet?
Depends on your setup. With
DR: yes.
tunnel: no
NAT: no
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(1310030469)
Hi,
nice logs, but the wrong ones. We need to know why the resource agent returns
the code 6, which means not configured. Please check your tgt config again.
Can you start tgt manually?
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ha1 will
become online with all services, just fine!
Any insights will be greatly appreciated, thanks!
Config?
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Perhaps we should meet somewhere in Munich (!) to check out possibilities? I
can deliver a very nice talk about development for SNMP.
If you are interested, please see also
http://www.guug.de/lokal/muenchen/index.html
for a talk about SNMPv3 next monday.
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(...)
Hi!
I wonder: If a machine has something like 12 cores, shouldn't that value
depend on the number of CPUs?
Regards,
Ulrich
Hi,
perhaps it would be better to use utilizations for that purpose.
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is connected. Or, more important, how many failcounters every
resource has.
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this? Or
is manual intervention necessary?
Yes. DRBD is even so smart that it will replicate only the missing data.
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Am 17.03.2011 10:44, schrieb Michael Schwartzkopff:
Hi,
we have very bad experiences with hardware RAID-systems and therefore
try to implement a high-available NFS service via drbd and pacemaker.
After reading lots of tutorials I am still not very comfortable with the
whole setup
Am 16.03.2011 06:58, schrieb Michael Schwartzkopff:
Hi,
I try to setup a high available NFS server according to the tutorial
Highly available NFS storage with DRBD and Pacemaker.
My problem is that Ubuntu Lucid LTS does not know the resource
ocf:heartbeat:exportfs. I tried to copy
Am 16.03.2011 06:58, schrieb Michael Schwartzkopff:
Hi,
I try to setup a high available NFS server according to the tutorial
Highly available NFS storage with DRBD and Pacemaker.
My problem is that Ubuntu Lucid LTS does not know the resource
ocf:heartbeat:exportfs. I tried to copy
Am Mittwoch, 16. März 2011 schrieb Michael Schwartzkopff:
Am 16.03.2011 06:58, schrieb Michael Schwartzkopff:
Hi,
I try to setup a high available NFS server according to the tutorial
Highly available NFS storage with DRBD and Pacemaker.
My problem is that Ubuntu Lucid
Am Mittwoch, 16. März 2011 schrieb Michael Schwartzkopff:
Am 16.03.2011 06:58, schrieb Michael Schwartzkopff:
Hi,
I try to setup a high available NFS server according to the
tutorial Highly available NFS storage with DRBD and Pacemaker.
My problem
Am Mittwoch, 16. März 2011 schrieb Michael Schwartzkopff:
Am 16.03.2011 06:58, schrieb Michael Schwartzkopff:
Hi,
I try to setup a high available NFS server according to the
tutorial Highly available NFS storage with DRBD and Pacemaker.
My problem
: ocf:heartbeat:exportfs: no such resource agent
Are there newer packages available for Ubuntu Lucid? Or how to get it
running?
Christoph
Where did you copy the script to?
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cluster stacks.
The GUI is now part of the pacemaker project. But as far as I can see there
are not prebuild packages for RHEL clones on clusterlabs.org/rpm or /rpm-next
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setup: Make a cluster like the setup above but also make the apache
run on these two machines. Use the localnode feature of LVS to realize the
complete setup with two machines instead of four. This configuration is left as
an exercise for the reader.
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as a first try. Useful patches are always
welcome.
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`\.' treated as plain `.'
99
real0m0.518s
user0m0.000s
sys 0m0.008s
time awk '$1 == cpu { print $7; exit }' /proc/stat
98
real0m0.004s
user0m0.000s
sys 0m0.000s
Regards,
Ulrich
Yes. That makes sense.
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and does not give you an absolute value. So you would have to calculate the
difference yourself, which makes the task much more difficult.
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On Thursday 03 February 2011 16:00:54 Ulrich Windl wrote:
Michael Schwartzkopff mi...@clusterbau.com schrieb am 03.02.2011 um
13:09 in
Nachricht 201102031309.04931.mi...@clusterbau.com:
On Thursday 03 February 2011 12:35:34 Ulrich Windl wrote:
Hi!
I'm starting to explore Linux
/log/mysql.log \
pid=/var/run/mysqld/mysqld.pid datadir=/var/lib/mysql \
socket=/var/run/mysqld/mysqld.sock
edit group groupMySQL
to Add the Mysql server
and so on,
Hope you are successful taking one step after the other.
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?
Any other solutions are welcome.
As always, thanks in advance for the replies
iptables is your friend. Prohibit unwantet access in the FORWARD chain.
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on the New DC
event and register it within the framework.
Thanks,
Todd
Please read
http://www.clusterlabs.org/
the follow up project of Linux-HA.
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On Wednesday 08 December 2010 19:26:53 Igor Chudov wrote:
I would like to know if there are relatively straightforward Linux
based alternatives to DRBD and heartbeat.
Any pointers and suggestions will be gratefully accepted.
Yes. DRBD and pacemaker.
See: www.clusterlabs.org
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On Wednesday 01 December 2010 23:13:23 Frank-Matthias Kuschel wrote:
On 12/01/2010 06:57 PM, Michael Schwartzkopff wrote:
On Wednesday 01 December 2010 17:21:21 Frank-Matthias Kuschel wrote:
Hi Folks,
i have a problem using stonith with suicide device.
First my use case:
2 SLES 11
brain.
The question here is, how can i make this node only participa in the corum
? and do not have the resources like ldiretord and ips that i add .
It just need to up so it can help in split brain.
Put that node in standby mode.
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On Thursday 25 November 2010 15:51:32 Henrique Fernandes wrote:
If it is in standby it still part of cluster and take decisions on quorum
and etc ?
yes.
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plain bad code' in it :)
Thanks,
Matthew
good to hear!
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both masters to
prevent them running on one node.
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, the Application App-A shall switch to Node B and - that's
the trick - App-B shall stop automatically.
Any ideas what I can do to implement this?
Thank you very much,
Thomas Kube
Germany, Hamburg
priority and anti-colocation.
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appreciate any feedback you have.
Thanks,
Eric Schoeller
University of Colorado, Boulder
I do.
References:
http://www.oreilly.de/catalog/linuxhacluster2ger/
Sorry, only available in German for now.
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. Michael Schwartzkopff
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See also
of net-snmp do you have? Did you try to use one of hte lated
versions of net-snmp?
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On Thursday 04 November 2010 13:10:38 Timo Schoeler wrote:
thus Michael Schwartzkopff spake:
On Thursday 04 November 2010 12:38:00 Timo Schoeler wrote:
Hi list,
I'm running heartbeat 2.1.4 on top of a CentOS 5.5 x86_64 cluster. Those
machines provide a bunch of virtual IPs, managed
. And there should be no
problem to install it after a fresh install.
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/dev/vx/dsk/dg_ora37/data2_ora37
/data2/ora37/ vxfs start) and both options work fine.
It is a Veritas Filesystem but so are the other mounts which work
without problems.
Any more log around the errors? Perhaps the output of the RA itself just above
the first entry?
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file system module / package installed on the other node?
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?
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Autor, immerhin Senior
Consultant.
Mal sehen, ob die Im nächsten Heft eine Gegendarstellung bringen. Übrigens
soll dann auch ein Artikel über KVM mit DRBD erscheinen.
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Dr. Michael Schwartzkopff
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Tel: (0163) 172 50 98
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the directory writebale by the owner.
Greetings,
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Dr. Michael Schwartzkopff
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Tel: (0163) 172 50 98
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Hi,
besides Mailinglists, IRC and other means of communication Erkan Yanar opened
the Linux Cluster group in German Xing. Everybody please feel free to join
the group. Well, thats Internet 2.0.
Happy Xinging.
Greetings,
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values.
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Dr. Michael Schwartzkopff
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Tel: (0163) 172 50 98
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, where the monitor operation does not really use
the master script but makes other checks.
Make sense? Any hints?
No, this makes no sense. It would be better to rewrite your script to exit
with the appropriate return values.
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Dr. Michael Schwartzkopff
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entries.
So, you could just as well let conntrack start by the boot
process, right? I always wondered on the relative merit of
cloning such resources or starting them via init.
Monitoring via the cluster. An reaction when the resource doesn't run any
more.
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Dr. Michael Schwartzkopff
?
heartbeat, pacemaker?
Logs?
Many questions ...
Michael Schwartzkopff
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Am Montag, den 16.08.2010, 16:14 +0200 schrieb Timo Schoeler:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi,
is there any option to force a heartbeat v2.1.4 (yes, I know, I should
update to Pacemaker/OpenAIS -- however, I cannot at the moment) cluster
to use TCP messages instead of
Am Mittwoch, den 28.07.2010, 14:52 +0200 schrieb Trujillo Carmona,
Antonio:
Some one can explain it or give me a direcction were I can learn (other
than http://linux-ha.org/doc/re-ra-IPaddr2.html )
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Por favor, NO utilice formatos de archivo propietarios para el
intercambio de
and ensure the connection remains between the client
and the realserver.
Or am I wrong?
Thanks for your help in advance.
Tom.
How does the failover LVS know to what real server to forward the
incomming package? This information is shared via sync throughout your
cluster of directors.
Michael
to Filesystem ?
Thanks for your help.
Alain Moullé
Hi,
as far as I remember ext4 was not implemented in the FS resourece agent.
Please have a look into the script.
Greetings,
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Dr. Michael Schwartzkopff
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First of all, do NOT use 2.0.8 any more. It is for about 5 years out of
date, buggy and, well, bad.
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Dr. Michael
.
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Dr. Michael Schwartzkopff
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on:
http://www.clusterlabs.org/wiki/Documentation
Distro: Every major distro works.
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Dr. Michael Schwartzkopff
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is space separated, not comma separated.
/attributes
/instance_attributes
/primitive
/clone
/resources
Any help will be really appreciated
Please use crm syntax. It is much easier to write, read and to correct.
Greetings,
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Dr. Michael Schwartzkopff
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Am Montag, 14. Juni 2010 09:05:10 schrieb Dejan Muhamedagic:
Hi,
On Sun, Jun 13, 2010 at 04:36:36PM +0200, Michael Schwartzkopff wrote:
Am Sonntag, 13. Juni 2010 16:28:37 schrieb Vadym Chepkov:
On Jun 13, 2010, at 10:18 AM, Michael Schwartzkopff wrote:
Am Sonntag, 13. Juni 2010 15:07
your question?
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