Re: [ClusterLabs] Antw: Re: 2-Node Cluster Pointless?

22.04.2017 23:33, Dmitri Maziuk пишет: > On 4/22/2017 12:02 PM, Digimer wrote: > >> Having SBD properly configured is *massively* safer than no fencing at >> all. So for people where other fence methods are not available for >> whatever reason, SBD is the way to go. > > Now you're talking. IMO

Re: [ClusterLabs] Antw: Re: 2-Node Cluster Pointless?

22.04.2017 11:31, Klaus Wenninger пишет: >>> I wonder how SBD fits into this discussion. It is marketed as stonith >>> agent, but it is based on committing suicide so relies on well-behaving >>> nodes. Which we by definition cannot trust to behave well, otherwise >>> we'd not need stonith in

Re: [ClusterLabs] Antw: Re: 2-Node Cluster Pointless?

18.04.2017 10:47, Ulrich Windl пишет: ... >> >> Now let me come back to quorum vs. stonith; >> >> Said simply; Quorum is a tool for when everything is working. Fencing is >> a tool for when things go wrong. > > I'd say: Quorum is the tool to decide who'll be alive and who's going to die, > and

Re: [ClusterLabs] using IPMI for fencing - configuring IPMI with ipmitool - HELP

28.02.2017 20:39, Lentes, Bernd пишет: > Hi, > > i have a HP server ML 350 G9 with an ILO4 card. The riloe stonith agent does > not work, i read in a book the recommendation to use the ipmi ressource agent > instead. > I'm trying to configure the respective ILO adapter with ipmitool. Why do

Re: [ClusterLabs] restart of one instance of a clone resource causes restart of dependent resources

06.02.2017 13:02, Daniel пишет: > Hi All, > > I'm having issues with a ordering constraint with a clone resource in > pacemaker v1.1.14. > - I have a resourceA-clone (running on 2 nodes: node1 and node2). > - then I have 2 other resources: resourceB1 (allowed to run on node1 only) > and

Re: [ClusterLabs] Error performing operation: Argument list too long

06.12.2016 20:41, Jan Pokorný пишет: > On 06/12/16 09:44 -0600, Ken Gaillot wrote: >> On 12/05/2016 02:29 PM, Shane Lawrence wrote: >>> I'm experiencing a strange issue with pacemaker. It is unable to check >>> the status of a systemd resource. >>> >>> systemctl shows that the service crashed:

Re: [ClusterLabs] Can Bonding Cause a Broadcast Storm?

16.11.2016 02:48, Eric Robinson пишет: > mode 1. No special switch configuration. spanning tree not enabled. I > have 100+ Linux servers, all of which use bonding. The network has > been stable for 10 years. No changes recently. However, this is the > second time that we have seen high latency and

Re: [ClusterLabs] Help crm_master with score 0

20.10.2016 09:20, K Aravind пишет: > Hi all > Small doubt > Let's say there are two node cluster without fencing say node 1 , node 2 > Where node 1 = active > Node 2 = passive > Now if node 1 is down > So node 2 promote is called ..however if the score given is 0 via > crm_master -l

Re: [ClusterLabs] Antw: Re: Antw: Unexpected Resource movement after failover

14.10.2016 10:39, Vladislav Bogdanov пишет: > > use of utilization (balanced strategy) has one caveat: resources are > not moved just because of utilization of one node is less, when nodes > have the same allocation score for the resource. So, after the > simultaneus outage of two nodes in a

Re: [ClusterLabs] Unexpected Resource movement after failover

On Thu, Oct 13, 2016 at 4:59 PM, Nikhil Utane wrote: > Hi, > > I have 5 nodes and 4 resources configured. > I have configured constraint such that no two resources can be co-located. > I brought down a node (which happened to be DC). I was expecting the > resource on

Re: [ClusterLabs] Antw: Re: OCFS2 on cLVM with node waiting for fencing timeout

On Tue, Oct 11, 2016 at 9:18 AM, Ulrich Windl wrote: > > My point is this: For a resource that can only exclusively run on one node, > it's important that the other node is down before taking action. But for cLVM > and OCFS2 the resources can run concurrently

Re: [ClusterLabs] I've been working on a split-brain prevention strategy for 2-node clusters.

10.10.2016 00:42, Eric Robinson пишет: > Digimer, thanks for your thoughts. Booth is one of the solutions I > looked at, but I don't like it because it is complex and difficult to > implement HA is complex. There is no way around it. > (and perhaps costly in terms of AWS services or something >

Re: [ClusterLabs] Mysql slave did not start replication after failure, and read-only IP also remained active on the much outdated slave

On Mon, Aug 22, 2016 at 12:18 PM, Attila Megyeri wrote: > Dear community, > > > > A few days ago we had an issue in our Mysql M/S replication cluster. > > We have a one R/W Master, and a one RO Slave setup. RO VIP is supposed to be > running on the slave if it is not

Re: [ClusterLabs] Can Pacemaker monitor geographical separated servers

On Tue, Aug 9, 2016 at 9:40 PM, bhargav M.P wrote: > Hi All, > I have deployment where we have two Linux servers that are geographically > separated and they are across different subnets . I want the server to work > in Active/Standby mode . I would like to use

Re: [ClusterLabs] Fencing with a 3-node (1 for quorum only) cluster

On Fri, Aug 5, 2016 at 7:08 AM, Digimer <li...@alteeve.ca> wrote: > On 04/08/16 11:44 PM, Andrei Borzenkov wrote: >> 05.08.2016 02:33, Digimer пишет: >>> On 04/08/16 07:21 PM, Dan Swartzendruber wrote: >>>> On 2016-08-04 19:03, Digimer wrote: >>>>

Re: [ClusterLabs] Fencing with a 3-node (1 for quorum only) cluster

05.08.2016 02:33, Digimer пишет: > On 04/08/16 07:21 PM, Dan Swartzendruber wrote: >> On 2016-08-04 19:03, Digimer wrote: >>> On 04/08/16 06:56 PM, Dan Swartzendruber wrote: I'm setting up an HA NFS server to serve up storage to a couple of vsphere hosts. I have a virtual IP, and it

Re: [ClusterLabs] external/libvirt source code

On Tue, Aug 2, 2016 at 4:58 PM, Maciej Kopczyński wrote: > Hello, > > Sorry if it is a trivial question, but I am facing a wall here. I am trying > to configure fencing on cluster running Hyper-V. I need to modify source > code for external/libvirt plugin, but I have no idea

Re: [ClusterLabs] Antw: Re: Antw: Re: Antw: Re: Pacemaker not always selecting the right stonith device

On Mon, Jul 25, 2016 at 9:07 AM, Ulrich Windl <ulrich.wi...@rz.uni-regensburg.de> wrote: >>>> Andrei Borzenkov <arvidj...@gmail.com> schrieb am 22.07.2016 um 17:14 in > Nachricht <4f17c57b-7458-2ec8-cd74-3daaf9c89...@gmail.com>: >> 22.07.2016 09:52, Ulrich

Re: [ClusterLabs] Previous DC fenced prior to integration

23.07.2016 01:37, Nate Clark пишет: > Hello, > > I am running pacemaker 1.1.13 with corosync and think I may have > encountered a start up timing issue on a two node cluster. I didn't > notice anything in the changelog for 14 or 15 that looked similar to > this or open bugs. > > The rough out

Re: [ClusterLabs] Active/Passive Cluster restarting resources on healthy node and DRBD issues

23.07.2016 00:07, TEG AMJG пишет: ... > Master: kamailioetcclone > Meta Attrs: master-max=1 master-node-max=1 clone-max=2 clone-node-max=1 > notify=true > Resource: kamailioetc (class=ocf provider=linbit type=drbd) >Attributes: drbd_resource=kamailioetc >Operations: start interval=0s

Re: [ClusterLabs] Antw: Re: Antw: Re: Pacemaker not always selecting the right stonith device

22.07.2016 09:52, Ulrich Windl пишет: > That could be. Should there be a node list to configure, or can't the agent > find out itself (for SBD)? > It apparently does it already gethosts) echo `sbd -d $sbd_device list | cut -f2 | sort | uniq` exit 0

Re: [ClusterLabs] Resource Agent ocf:heartbeat:iSCSILogicalUnit

22.07.2016 17:43, Jason A Ramsey пишет: > Additionally (and this is just a failing on my part), I’m > unclear as to where the resource agent is fed the value for > “${OCF_RESOURCE_INSTANCE}” given the limited number of parameters one > is permitted to supply with “pcs resource create…” > It is

Re: [ClusterLabs] Pacemaker not always selecting the right stonith device

22.07.2016 00:38, Klaus Wenninger пишет: > On 07/21/2016 06:40 PM, Andrei Borzenkov wrote: >> 19.07.2016 18:24, Klaus Wenninger пишет: >>> On 07/19/2016 04:17 PM, Ken Gaillot wrote: >>>> On 07/19/2016 09:00 AM, Andrei Borzenkov wrote: >>>>> On Tue

Re: [ClusterLabs] Antw: Re: Pacemaker not always selecting the right stonith device

21.07.2016 09:49, Ulrich Windl пишет: Ken Gaillot schrieb am 19.07.2016 um 16:17 in Nachricht > : > > [...] >> You're right -- if not told otherwise, Pacemaker will query the device >> for the target list. In this

Re: [ClusterLabs] Setup problem: couldn't find command: tcm_node

20.07.2016 18:08, Jason A Ramsey пишет: > I have been struggling getting a HA iSCSI Target cluster in place for > literally weeks. I cannot, for whatever reason, get pacemaker to create an > iSCSILogicalUnit resource. The error message that I’m seeing leads me to > believe that I’m missing

Re: [ClusterLabs] Pacemaker not always selecting the right stonith device

On Tue, Jul 19, 2016 at 6:33 PM, Martin Schlegel wrote: >> > [...] >> > >> > primitive p_ston_pg1 stonith:external/ipmi \ >> > params hostname=pg1 ipaddr=10.148.128.35 userid=root >> > passwd="/var/vcap/data/packages/pacemaker/ra-tmp/stonith/PG1-ipmipass" >> >

Re: [ClusterLabs] Pacemaker not always selecting the right stonith device

19.07.2016 18:24, Klaus Wenninger пишет: > On 07/19/2016 04:17 PM, Ken Gaillot wrote: >> On 07/19/2016 09:00 AM, Andrei Borzenkov wrote: >>> On Tue, Jul 19, 2016 at 4:52 PM, Ken Gaillot <kgail...@redhat.com> wrote: >>> ... >>>>> primitive p_ston_pg

Re: [ClusterLabs] Pacemaker not always selecting the right stonith device

On Tue, Jul 19, 2016 at 4:52 PM, Ken Gaillot wrote: ... >> >> primitive p_ston_pg1 stonith:external/ipmi \ >> params hostname=pg1 ipaddr=10.148.128.35 userid=root >> passwd="/var/vcap/data/packages/pacemaker/ra-tmp/stonith/PG1-ipmipass" >> passwd_method=file interface=lan

Re: [ClusterLabs] Antw: Re: Antw: RES: Pacemaker and OCFS2 on stand alone mode

11.07.2016 09:33, Ulrich Windl пишет: >>>> Andrei Borzenkov <arvidj...@gmail.com> schrieb am 09.07.2016 um 10:17 in > Nachricht <5780b30a.3000...@gmail.com>: >> 08.07.2016 09:11, Ulrich Windl пишет: >>>>>> "Carlos Xavier"

Re: [ClusterLabs] Antw: RES: Pacemaker and OCFS2 on stand alone mode

08.07.2016 09:11, Ulrich Windl пишет: "Carlos Xavier" schrieb am 07.07.2016 um 18:57 in > Nachricht <00e901d1d870$ae418000$0ac48000$@com.br>: >> Tank you for the fast reply >> >>> >>> have you configured the stonith and drbd stonith handler? >>> >> >> Yes.

Re: [ClusterLabs] Recovering after split-brain

21.06.2016 20:05, Dimitri Maziuk пишет: > On 06/21/2016 11:47 AM, Digimer wrote: > >> If you don't need to coordinate services/access, you don't need HA. >> >> If you do need to coordinate services/access, you need fencing. > > So what you're saying is we *cannot* run a pacemaker cluster without

Re: [ClusterLabs] restarting pacemakerd

18.06.2016 22:04, Dmitri Maziuk пишет: > On 2016-06-18 05:15, Ferenc Wágner wrote: > ... >> On the other hand, one could argue that restarting failed services >> should be the default behavior of systemd (or any init system). Still, >> it is not. > > As an off-topic snide comment, I never

Re: [ClusterLabs] getting "Totem is unable to form a cluster" error

08.04.2016 17:51, Jan Friesse пишет: >> On 04/08/16 13:01, Jan Friesse wrote: >> >> pacemaker 1.1.12-11.12 >> >> openais 1.1.4-5.24.5 >> >> corosync 1.4.7-0.23.5 >> >> >> >> Its a two node active/passive cluster and we just upgraded the >> SLES 11 >> >> SP 3 to SLES 11 SP 4(nothing else)

Re: [ClusterLabs] Pacemaker startup-fencing

On Wed, Mar 16, 2016 at 4:18 PM, Lars Ellenberg wrote: > On Wed, Mar 16, 2016 at 01:47:52PM +0100, Ferenc Wágner wrote: >> >> And some more about fencing: >> >> >> >> 3. What's the difference in cluster behavior between >> >>- stonith-enabled=FALSE (9.3.2: how often

Re: [ClusterLabs] PCS, Corosync, Pacemaker, and Bind (Ken Gaillot)

On Wed, Mar 16, 2016 at 9:35 PM, Mike Bernhardt wrote: > I guess I have to say "never mind!" I don't know what the problem was > yesterday, but it loads just fine today, even when the named config and the > virtual ip don't match! But for your edamacation, ifconfig does NOT

Re: [ClusterLabs] Antw: Re: Antw: Re: design of a two-node cluster

On Tue, Dec 8, 2015 at 12:01 PM, Ulrich Windl <ulrich.wi...@rz.uni-regensburg.de> wrote: >>>> Andrei Borzenkov <arvidj...@gmail.com> schrieb am 08.12.2015 um 09:01 in > Nachricht > <CAA91j0Un+1EN6xRLM=dm6ck+usdzmpnyyjtha9d+btrzfcg...@mail.gmail.com>: >&g

Re: [ClusterLabs] master/slave resource agent without demote

On Tue, Nov 24, 2015 at 5:19 PM, Waldemar Brodkorb wrote: > Hi, > > we are using a derivate of the Tomcat OCF script. > Our web application needs to be promoted (via a wget call). > But our application is not able to demote in a clean way, so > we need to stop and then

Re: [ClusterLabs] start service after filesystemressource

20.11.2015 16:38, haseni...@gmx.de пишет: Hi, I want to start several services after the drbd ressource an the filessystem is avaiable. This is my current configuration: node $id="184548773" host-1 \ attributes standby="on" node $id="184548774" host-2 \ attributes

Re: [ClusterLabs] required nodes for quorum policy

On Tue, Nov 10, 2015 at 1:20 AM, Radoslaw Garbacz wrote: > Hi, > > I have a question regarding the policy to check for cluster quorum for > corosync+pacemaker. > > As far as I know at present it is always (excpected_votes)/2 + 1. Seems like > "qdiskd" has an

Re: [ClusterLabs] restarting resources

On Mon, Nov 2, 2015 at 7:59 PM, - - wrote: > Hi, >I need to be able to restart a resource (e.g apache) whenever a > configuration > file is updated. I have been using the 'crm resource restart ' command to to > it, > which does restart the resource BUT also restarts my

Re: [ClusterLabs] ORACLE 12 and SLES HAE (Sles 11sp3)

On Wed, Oct 28, 2015 at 11:45 AM, Cristiano Coltro wrote: > Hi, > most of the SLES 11 sp3 with HAE are migrating Oracle Db. > The migration will be from Oracle 11 to Oracle 12 > > They have verified that the Oracles cluster resources actually supports > - Oracle 10.2 and 11.2

Re: [ClusterLabs] Resource location node preference

22.10.2015 18:25, Vallevand, Mark K пишет: Suppose I have a resource defined with a preference of node1 over node2. The resource is running on node1. Node1 goes away. Now the resource is running on node2. Node1 comes back and joins the cluster. Will the resource relocate to Node1?

Re: [ClusterLabs] Antw: Monitoring Op for LVM - Excessive Logging

09.10.2015 19:40, Jorge Fábregas пишет: On 10/09/2015 09:06 AM, Ulrich Windl wrote: Did you try daemon_options="-d0"? (in clvmd resource) I've just found this: http://pacemaker.oss.clusterlabs.narkive.com/C5BaFych/ocf-lvm2-clvmd-resource-agent ...so apparently SUSE changed the resource

Re: [ClusterLabs] disable failover

On Thu, Oct 1, 2015 at 5:30 PM, Vijay Partha wrote: > Hi, > > I want to know how to disable failover. If a node undergoes a failover the > resources running on the node should not be started on the other node in the > cluster. How can this be achieved. > What exactly

Re: [ClusterLabs] disable failover

01.10.2015 19:09, Vijay Partha пишет: i want pacemaker to monitor the resources running on each node and at the same time restart it. It should run on the same node. Then create single node cluster. Why do you add second node if you do not want to use it? On Thu, Oct 1, 2015 at 9:17 PM,

Re: [ClusterLabs] a newbie --question

On Tue, Sep 15, 2015 at 4:38 PM, wrote: > Hi, > > Thanks for reply. > The problem is Compute resource, the appY and appZ can't run on same Server. > > It is possible ? > Yes; set location constraint that appY cannot run on the same node as appZ (and vice versa).

Re: [ClusterLabs] CRM managing ADSL connection; failure not handled

24.08.2015 12:35, Tom Yates пишет: I've got a failover firewall pair where the external interface is ADSL; that is, PPPoE. i've defined the service thus: primitive ExternalIP lsb:hb-adsl-helper \ op monitor interval=60s and in addition written a noddy script

Re: [ClusterLabs] CRM managing ADSL connection; failure not handled

24.08.2015 13:32, Tom Yates пишет: On Mon, 24 Aug 2015, Andrei Borzenkov wrote: 24.08.2015 12:35, Tom Yates пишет: I've got a failover firewall pair where the external interface is ADSL; that is, PPPoE. i've defined the service thus: If stop operation failed resource state is undefined

Re: [ClusterLabs] Pacemaker tries to demote resource that isn't running and returns OCF_FAILED_MASTER

21.08.2015 00:35, Brian Campbell пишет: I have a master/slave resource (with a custom resource agent) which, if it uncleanly shut down, will return OCF_FAILED_MASTER on the next monitor operation. This seems to be what

Re: [ClusterLabs] MySQL resource causes error 0_monitor_20000.

On Tue, Aug 18, 2015 at 9:15 AM, Kiwamu Okabe kiw...@debian.or.jp wrote: Hi Andrei, On Tue, Aug 18, 2015 at 2:24 PM, Andrei Borzenkov arvidj...@gmail.com wrote: I made master-master replication on Pacemaker. But it causes error 0_monitor_2. It's not an error, it is just operation name

Re: [ClusterLabs] Antw: Re: MySQL resource causes error 0_monitor_20000.

On Tue, Aug 18, 2015 at 3:34 PM, Ulrich Windl ulrich.wi...@rz.uni-regensburg.de wrote: Kiwamu Okabe kiw...@debian.or.jp schrieb am 18.08.2015 um 11:48 in Nachricht CAEvX6dky8=_w6l2nhndfbowux+ol7ktaa44salru7a9-xed...@mail.gmail.com: Hi Andrei, On Tue, Aug 18, 2015 at 6:28 PM, Andrei

Re: [ClusterLabs] MySQL resource causes error 0_monitor_20000.

On Tue, Aug 18, 2015 at 11:57 AM, Kiwamu Okabe kiw...@debian.or.jp wrote: Hi, On Tue, Aug 18, 2015 at 5:07 PM, Kiwamu Okabe kiw...@debian.or.jp wrote: ``` 2015-08-18 16:50:38 7081 [ERROR] Slave I/O: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids;

Re: [ClusterLabs] MySQL resource causes error 0_monitor_20000.

Отправлено с iPhone 18 авг. 2015 г., в 7:19, Kiwamu Okabe kiw...@gmail.com написал(а): Hi all, I made master-master replication on Pacemaker. But it causes error 0_monitor_2. It's not an error, it is just operation name. If one of them boots Heartbeat and another doesn't, the

Re: [ClusterLabs] Antw: Ordering constraint restart second resource group

17.08.2015 02:26, Andrew Beekhof пишет: On 13 Aug 2015, at 7:33 pm, Andrei Borzenkov arvidj...@gmail.com wrote: On Thu, Aug 13, 2015 at 11:25 AM, Ulrich Windl ulrich.wi...@rz.uni-regensburg.de wrote: And what exactly is your problem? Real life example. Database resource depends on storage

Re: [ClusterLabs] Antw: Ordering constraint restart second resource group

On Thu, Aug 13, 2015 at 11:25 AM, Ulrich Windl ulrich.wi...@rz.uni-regensburg.de wrote: And what exactly is your problem? Real life example. Database resource depends on storage resource(s). There are multiple filesystems/volumes with database files. Database admin needs to increase available

Re: [ClusterLabs] circumstances under which resources become unmanaged

On 12.08.2015 20:46, N, Ravikiran wrote: Hi All, I have a resource added to pacemaker called 'cmsd' whose state is getting to 'unmanaged FAILED' state. Apart from manually changing the resource to unmanaged using pcs resource unmanage cmsd , I'm trying to understand under what all

Re: [ClusterLabs] Ordering constraint restart second resource group

On 12.08.2015 19:35, John Gogu wrote: ​Hello, in my cluster configuration I have following situation: resource_group_A ip1 ip2 resource_group_B apache1 ordering constraint resource_group_A then resource_group_B symetrical=true When I add a new resource from group_A, resources

Re: [ClusterLabs] starting of resources

On Tue, Aug 11, 2015 at 9:44 AM, Vijay Partha vijaysarath...@gmail.com wrote: Hi, Can we statically add resources to the nodes. I mean before the pacemaker is started can we add resources to the nodes like you dont require to make use of pcs resource create. Is this possible? You better

Re: [ClusterLabs] systemd: xxxx.service start request repeated too quickly

On Tue, Aug 4, 2015 at 4:57 PM, Juha Heinanen j...@tutpro.com wrote: Andrei Borzenkov writes: Not sure I really understand the question. If service cannot run anyway, you can simply remove it from configuration. You can set target state to stopped. You can unmanage it. It all depends on what

Re: [ClusterLabs] How to cluster a service with multiple possibilities

В Fri, 24 Jul 2015 14:43:37 + David Gersic dger...@niu.edu пишет: I have a process (OpenSLP slpd) that I'd like to cluster. Unfortunately, this process provides multiple services, depending what it finds in its configuration file on startup. I need to have the process running on all of

Re: [ClusterLabs] Resource cannot run anywhere

On Mon, Jul 20, 2015 at 4:40 PM, Leonhardt,Christian christian.leonha...@dako.de wrote: Hello everyone, I already posted this issue at the Debian HA maintainers list (http://l ists.alioth.debian.org/pipermail/debian-ha-maintainers/2015 -July/004325.html). Unfortunately the problem still exist

Re: [ClusterLabs] 3 nodes cluster on Centos 7

On Tue, Jul 7, 2015 at 12:34 PM, Michael Schwartzkopff m...@sys4.de wrote: The cluster has 3 nodes : - 1 virtual machine (machine1). This machine is supposed to be high-available - 2 physical machines identical (machine2 and 3) It's not going to work. If host where this VM is running

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