[Pacemaker] Pacemaker Digest, Vol 72, Issue 70
Muhammad Kamran Azeem
kamranazeem at gmail.com
Wed Nov 27 11:14:51 UTC 2013
Hello List,
I am new here. I worked with Linux HA during 2006-2008, went in HPC
direction, and came back to HA a month ago. Realized that a lot has
changed.
My setup:
Two KVM machines vdb1 (192.168.122.11), vdb2 (192.168.122.12)
ClusterIP: 192.168.122.10
Fedora 19 (64 bit). PCS, CoroSync, PaceMaker, DRBD
Note: I use the names node1 and node2 for vdb1 and vdb2 for explanations.
I am trying to setup a test cluster, using
http://clusterlabs.org/doc/en-US/Pacemaker/1.1-pcs/html/Clusters_from_Scratch/_configure_the_cluster_for_drbd.html
First, the status:
[root at vdb1 drbd.d]# pcs status
Cluster name: MySQLCluster
Last updated: Tue Nov 26 14:05:33 2013
Last change: Mon Nov 25 17:25:59 2013 via crm_resource on vdb2.example.com
Stack: corosync
Current DC: vdb1.example.com (1) - partition with quorum
Version: 1.1.9-3.fc19-781a388
2 Nodes configured, unknown expected votes
2 Resources configured.
Online: [ vdb1.example.com vdb2.example.com ]
Full list of resources:
ClusterIP (ocf::heartbeat:IPaddr2): Started vdb1.example.com
Apache (ocf::heartbeat:apache): Started vdb1.example.com
[root at vdb1 drbd.d]#
My DRBD disks are:
[root at vdb1 drbd.d]# drbd-overview
1:MySQLDisk/0 Connected Secondary/Secondary UpToDate/UpToDate C r-----
2:ApacheDisk/0 Connected Secondary/Secondary UpToDate/UpToDate C r-----
[root at vdb1 drbd.d]#
Now, the guide suggests creating a small config file, define the new
resources in that, and then push that in CIB. Extract from the guide:
# pcs cluster cib drbd_cfg
# pcs -f drbd_cfg resource create WebData ocf:linbit:drbd \
drbd_resource=wwwdata op monitor interval=60s
# pcs -f drbd_cfg resource master WebDataClone WebData \
master-max=1 master-node-max=1 clone-max=2 clone-node-max=1 \
notify=true
I decided to execute the commands (manually), without using the config file
method, as:
# pcs resource create p_ApacheDisk ocf:linbit:drbd \
> drbd_resource=ApacheDisk op monitor interval=60s
# pcs resource master MasterApacheDisk p_ApacheDisk \
> master-max=1 master-node-max=1 clone-max=2 clone-node-max=1 \
> notify=true
(I changed the names of resources a bit)
I get the following errors:
[root at vdb2 ~]# pcs resource create p_ApacheDisk ocf:linbit:drbd \
> drbd_resource=ApacheDisk op monitor interval=60s
[root at vdb2 ~]# pcs status
Cluster name: MySQLCluster
Last updated: Wed Nov 27 11:50:35 2013
Last change: Wed Nov 27 11:49:36 2013 via cibadmin on vdb2.example.com
Stack: corosync
Current DC: vdb1.example.com (1) - partition with quorum
Version: 1.1.9-3.fc19-781a388
2 Nodes configured, unknown expected votes
3 Resources configured.
Online: [ vdb1.example.com vdb2.example.com ]
Full list of resources:
ClusterIP (ocf::heartbeat:IPaddr2): Started vdb1.example.com
Apache (ocf::heartbeat:apache): Started vdb1.example.com
p_ApacheDisk (ocf::linbit:drbd): Stopped
Failed actions:
p_ApacheDisk_monitor_0 (node=vdb1.example.com, call=27, rc=6,
status=complete, last-rc-change=Wed Nov 27 11:49:36 2013
, queued=23ms, exec=0ms
): not configured
p_ApacheDisk_monitor_0 (node=vdb2.example.com, call=15, rc=6,
status=complete, last-rc-change=Wed Nov 27 11:49:36 2013
, queued=22ms, exec=1ms
): not configured
Got the following in /var/log/messages on DC (node 1):
Nov 27 11:49:36 vdb1 cib[538]: notice: cib:diff: Diff: --- 0.43.13
Nov 27 11:49:36 vdb1 cib[538]: notice: cib:diff: Diff: +++ 0.44.1
f4b87d9dee145747f86583cb5eb8276b
Nov 27 11:49:36 vdb1 stonith-ng[539]: notice: unpack_config: On loss of
CCM Quorum: Ignore
Nov 27 11:49:36 vdb1 crmd[543]: notice: do_state_transition: State
transition S_IDLE -> S_POLICY_ENGINE [ input=I_PE_CALC cause=C_FSA_INTERNAL
origin=abort_transition_graph ]
Nov 27 11:49:36 vdb1 pengine[542]: notice: unpack_config: On loss of CCM
Quorum: Ignore
Nov 27 11:49:36 vdb1 pengine[542]: notice: LogActions: Start
p_ApacheDisk#011(vdb2.example.com)
Nov 27 11:49:36 vdb1 pengine[542]: notice: process_pe_message: Calculated
Transition 92: /var/lib/pacemaker/pengine/pe-input-74.bz2
Nov 27 11:49:36 vdb1 crmd[543]: notice: te_rsc_command: Initiating action
8: monitor p_ApacheDisk_monitor_0 on vdb2.example.com
Nov 27 11:49:36 vdb1 crmd[543]: notice: te_rsc_command: Initiating action
6: monitor p_ApacheDisk_monitor_0 on vdb1.example.com (local)
Nov 27 11:49:36 vdb1 drbd(p_ApacheDisk)[9807]: ERROR: meta parameter
misconfigured, expected clone-max -le 2, but found unset.
Nov 27 11:49:36 vdb1 crmd[543]: notice: process_lrm_event: LRM operation
p_ApacheDisk_monitor_0 (call=27, rc=6, cib-update=124, confirmed=true) not
configured
Nov 27 11:49:36 vdb1 crmd[543]: warning: status_from_rc: Action 8
(p_ApacheDisk_monitor_0) on vdb2.example.com failed (target: 7 vs. rc: 6):
Error
Nov 27 11:49:36 vdb1 crmd[543]: notice: te_rsc_command: Initiating action
7: probe_complete probe_complete on vdb2.example.com - no waiting
Nov 27 11:49:36 vdb1 crmd[543]: warning: status_from_rc: Action 6
(p_ApacheDisk_monitor_0) on vdb1.example.com failed (target: 7 vs. rc: 6):
Error
Nov 27 11:49:36 vdb1 crmd[543]: notice: te_rsc_command: Initiating action
5: probe_complete probe_complete on vdb1.example.com (local) - no waiting
Nov 27 11:49:36 vdb1 crmd[543]: notice: run_graph: Transition 92
(Complete=4, Pending=0, Fired=0, Skipped=3, Incomplete=0,
Source=/var/lib/pacemaker/pengine/pe-input-74.bz2): Stopped
Nov 27 11:49:36 vdb1 pengine[542]: notice: unpack_config: On loss of CCM
Quorum: Ignore
Nov 27 11:49:36 vdb1 pengine[542]: error: unpack_rsc_op: Preventing
p_ApacheDisk from re-starting anywhere in the cluster : operation monitor
failed 'not configured' (rc=6)
Nov 27 11:49:36 vdb1 pengine[542]: error: unpack_rsc_op: Preventing
p_ApacheDisk from re-starting anywhere in the cluster : operation monitor
failed 'not configured' (rc=6)
Nov 27 11:49:36 vdb1 pengine[542]: notice: process_pe_message: Calculated
Transition 93: /var/lib/pacemaker/pengine/pe-input-75.bz2
Nov 27 11:49:36 vdb1 crmd[543]: notice: run_graph: Transition 93
(Complete=0, Pending=0, Fired=0, Skipped=0, Incomplete=0,
Source=/var/lib/pacemaker/pengine/pe-input-75.bz2): Complete
Nov 27 11:49:36 vdb1 crmd[543]: notice: do_state_transition: State
transition S_TRANSITION_ENGINE -> S_IDLE [ input=I_TE_SUCCESS
cause=C_FSA_INTERNAL origin=notify_crmd ]
I then executed the second command and got this:
[root at vdb2 drbd.d]# pcs resource master MasterApacheDisk p_ApacheDisk \
> master-max=1 master-node-max=1 clone-max=2 clone-node-max=1 \
> notify=true
[root at vdb2 drbd.d]# pcs status
Cluster name: MySQLCluster
Last updated: Wed Nov 27 11:52:54 2013
Last change: Wed Nov 27 11:52:39 2013 via cibadmin on vdb1.example.com
Stack: corosync
Current DC: vdb1.example.com (1) - partition with quorum
Version: 1.1.9-3.fc19-781a388
2 Nodes configured, unknown expected votes
4 Resources configured.
Online: [ vdb1.example.com vdb2.example.com ]
Full list of resources:
ClusterIP (ocf::heartbeat:IPaddr2): Started vdb1.example.com
Apache (ocf::heartbeat:apache): Started vdb1.example.com
Master/Slave Set: MasterApacheDisk [p_ApacheDisk]
Stopped: [ vdb1.example.com vdb2.example.com ]
Failed actions:
p_ApacheDisk_monitor_0 (node=vdb1.example.com, call=27, rc=6,
status=complete, last-rc-change=Wed Nov 27 11:49:36 2013
, queued=23ms, exec=0ms
): not configured
p_ApacheDisk_monitor_0 (node=vdb2.example.com, call=15, rc=6,
status=complete, last-rc-change=Wed Nov 27 11:49:36 2013
, queued=22ms, exec=1ms
): not configured
[root at vdb2 drbd.d]#
Got the following in log file on /var/log/messages:
Nov 27 11:52:39 vdb1 cib[538]: notice: cib:diff: Diff: --- 0.44.3
Nov 27 11:52:39 vdb1 cib[538]: notice: cib:diff: Diff: +++ 0.45.1
d62a8fd52495c636c2bc012ac156d3e2
Nov 27 11:52:39 vdb1 crmd[543]: notice: do_state_transition: State
transition S_IDLE -> S_POLICY_ENGINE [ input=I_PE_CALC cause=C_FSA_INTERNAL
origin=abort_transition_graph ]
Nov 27 11:52:39 vdb1 stonith-ng[539]: notice: unpack_config: On loss of
CCM Quorum: Ignore
Nov 27 11:52:39 vdb1 pengine[542]: notice: unpack_config: On loss of CCM
Quorum: Ignore
Nov 27 11:52:39 vdb1 pengine[542]: error: unpack_rsc_op: Preventing
MasterApacheDisk from re-starting anywhere in the cluster : operation
monitor failed 'not configured' (rc=6)
Nov 27 11:52:39 vdb1 pengine[542]: error: unpack_rsc_op: Preventing
MasterApacheDisk from re-starting anywhere in the cluster : operation
monitor failed 'not configured' (rc=6)
Nov 27 11:52:39 vdb1 pengine[542]: notice: process_pe_message: Calculated
Transition 94: /var/lib/pacemaker/pengine/pe-input-76.bz2
Nov 27 11:52:39 vdb1 crmd[543]: notice: run_graph: Transition 94
(Complete=0, Pending=0, Fired=0, Skipped=0, Incomplete=0,
Source=/var/lib/pacemaker/pengine/pe-input-76.bz2): Complete
Nov 27 11:52:39 vdb1 crmd[543]: notice: do_state_transition: State
transition S_TRANSITION_ENGINE -> S_IDLE [ input=I_TE_SUCCESS
cause=C_FSA_INTERNAL origin=notify_crmd ]
I have tried them they way it is specified in the guide and it works. (i.e.
by using an intermediate config file). But my question is, why I cannot use
the two commands individually? Are there any limitations in doing so? If
someone can explain the above errors and the reasons behind them, I would
really appreciate. Thank you for your time.
Regards,
K
On Wed, Nov 27, 2013 at 12:00 PM, <pacemaker-request at oss.clusterlabs.org>wrote:
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> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Pacemaker digest..."
>
>
> Today's Topics:
>
> 1. Re: howto group resources without having an order
> (Michael Schwartzkopff)
> 2. Re: Can in pass commands to Pacemaker from a Remote Machine
> (David Vossel)
> 3. Re: howto group resources without having an order
> (Bauer, Stefan (IZLBW Extern))
> 4. Re: howto group resources without having an order
> (Michael Schwartzkopff)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 26 Nov 2013 15:03:56 +0100
> From: Michael Schwartzkopff <ms at sys4.de>
> To: The Pacemaker cluster resource manager
> <pacemaker at oss.clusterlabs.org>
> Subject: Re: [Pacemaker] howto group resources without having an order
> Message-ID: <4335855.BDW45BEUI9 at nb003>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Am Dienstag, 26. November 2013, 13:44:58 schrieb Bauer, Stefan:
> (...)
> > As Lars already noted. Or make a constraint set, as Florian already
> noted:
> >
> > colocation c-set inf: (OVPN1 OVPN2 ...) myGroup
> >
> > -> Can you recommend a documentation about howto specify a colocation?
> What
> > is the function of the "(" for example.
>
> http://www.oreilly.de/catalog/linuxhacluster3ger/index.html
>
> Sorry, it was too tempting.
>
> Also:
>
> http://clusterlabs.org/doc/en-US/Pacemaker/1.1-crmsh/html/Pacemaker_Explained/s-resource-sets-ordering.html
>
> and its following pages.
>
>
> http://clusterlabs.org/doc/en-US/Pacemaker/1.1-crmsh/html/Pacemaker_Explained/s-resource-sets-collocation.html
>
> and its following pages.
>
> --
> Mit freundlichen Gr??en,
>
> Michael Schwartzkopff
>
> --
> [*] sys4 AG
>
> http://sys4.de, +49 (89) 30 90 46 64, +49 (162) 165 0044
> Franziskanerstra?e 15, 81669 M?nchen
>
> Sitz der Gesellschaft: M?nchen, Amtsgericht M?nchen: HRB 199263
> Vorstand: Patrick Ben Koetter, Axel von der Ohe, Marc Schiffbauer
> Aufsichtsratsvorsitzender: Florian Kirstein
> -------------- next part --------------
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> >
>
> ------------------------------
>
> Message: 2
> Date: Tue, 26 Nov 2013 11:27:31 -0500 (EST)
> From: David Vossel <dvossel at redhat.com>
> To: The Pacemaker cluster resource manager
> <pacemaker at oss.clusterlabs.org>
> Subject: Re: [Pacemaker] Can in pass commands to Pacemaker from a
> Remote Machine
> Message-ID:
> <1288802713.69018898.1385483251900.JavaMail.root at redhat.com>
> Content-Type: text/plain; charset=utf-8
>
> ----- Original Message -----
> > From: "Puneet Jindal" <puneetjindal at drishti-soft.com>
> > To: pacemaker at oss.clusterlabs.org
> > Sent: Sunday, November 24, 2013 2:58:35 AM
> > Subject: [Pacemaker] Can in pass commands to Pacemaker from a Remote
> Machine
> >
> > Hello,
> >
> > I want to build a GUI on top of pacemaker, i configures
> "remote-tls-port" in
> > cib and now cib is listening on that port. What all commands can i send
> to
> > CIB and how to do that. Can anyone provide some examples
>
> look at the 'cibadmin' tool
>
> >
> > _______________________________________________
> > Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> >
> > Project Home: http://www.clusterlabs.org
> > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> > Bugs: http://bugs.clusterlabs.org
> >
>
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 27 Nov 2013 08:50:59 +0000
> From: "Bauer, Stefan (IZLBW Extern)" <Stefan.Bauer at iz.bwl.de>
> To: The Pacemaker cluster resource manager
> <pacemaker at oss.clusterlabs.org>
> Subject: Re: [Pacemaker] howto group resources without having an order
> Message-ID:
> <6CCC8D7D73BC5E4E8A87293EF611BA4F2058DA47 at BWLSM15.ZD.BWL.NET>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi Michael,
>
> i already have your book but i can't find anything related to the way, you
> define constraint sets like stated here:
>
> --------------
> As Lars already noted. Or make a constraint set, as Florian already noted:
>
> colocation c-set inf: (OVPN1 OVPN2 ...) myGroup
> --------------
>
> What is the behavior of the brackets for example?
>
> Stefan
>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 27 Nov 2013 10:28:28 +0100
> From: Michael Schwartzkopff <ms at sys4.de>
> To: The Pacemaker cluster resource manager
> <pacemaker at oss.clusterlabs.org>
> Subject: Re: [Pacemaker] howto group resources without having an order
> Message-ID: <2538092.ha62r51U8D at nb003>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Am Mittwoch, 27. November 2013, 08:50:59 schrieb Bauer, Stefan:
> > Hi Michael,
> >
> > i already have your book but i can't find anything related to the way,
> you
> > define constraint sets like stated here:
> >
> > --------------
> > As Lars already noted. Or make a constraint set, as Florian already
> noted:
> >
> > colocation c-set inf: (OVPN1 OVPN2 ...) myGroup
> > --------------
> >
> > What is the behavior of the brackets for example?
>
> This feature was not implemented at the time I wrote the book. Time for a
> update.
>
> But you find the details, as always, in the man pages:
>
> http://www.nongnu.org/crmsh/crm.8.html
>
> See the section about colocation and order
>
> --
> Mit freundlichen Gr??en,
>
> Michael Schwartzkopff
>
> --
> [*] sys4 AG
>
> http://sys4.de, +49 (89) 30 90 46 64, +49 (162) 165 0044
> Franziskanerstra?e 15, 81669 M?nchen
>
> Sitz der Gesellschaft: M?nchen, Amtsgericht M?nchen: HRB 199263
> Vorstand: Patrick Ben Koetter, Axel von der Ohe, Marc Schiffbauer
> Aufsichtsratsvorsitzender: Florian Kirstein
> -------------- next part --------------
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>
> ------------------------------
>
> _______________________________________________
> Pacemaker mailing list
> Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
>
> End of Pacemaker Digest, Vol 72, Issue 70
> *****************************************
>
--
http://www.wbitt.com , http://techsnail.com
Computer bugs are like shipwrecks. They are not found, unless they want to
be found.
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