[Pacemaker] Pacemaker Digest, Vol 59, Issue 59
vishal kumar
vishal.kanojwar at gmail.com
Thu Oct 25 10:07:36 EDT 2012
>
> Hi Dejan,
>
I tried with lrmadmin -M lsb httpd NULL and was able to get the meta-data.
I was able to add a resource from lrmadmin but i cannot see that resource
in crm shell.
Many Thanks
Vishal
Message: 1
> Date: Tue, 23 Oct 2012 13:48:24 +0200
> From: Dejan Muhamedagic <dejanmm at fastmail.fm>
> To: The Pacemaker cluster resource manager
> <pacemaker at oss.clusterlabs.org>
> Subject: Re: [Pacemaker] Pacemaker Digest, Vol 59, Issue 57
> Message-ID: <20121023114823.GA19526 at walrus.homenet>
> Content-Type: text/plain; charset=us-ascii
>
> Hi,
>
> On Tue, Oct 23, 2012 at 10:18:36AM +0530, vishal kumar wrote:
> > Hello Florian,
> >
> > Thanks for the help.
> >
> > I tried with crm ra meta sshd lsb but it gave me the same meta-data
> error.
> >
> > The problem is while trying to add a lsb resource from crm shell, like
> > httpd as i am using rhel it gives the following error
> > ERROR: lsb:httpd: could not parse meta-data:
> > ERROR: lsb:httpd: no such resource agent
> >
> > the httpd package is installed and i have a httpd file /etc/init.d
> > directory. I am unable to add any resource which in /etc/init.d
> directory.
>
> Do you have cluster-glue installed? And is pacemaker running?
> lrmadmin (part of cluster-glue) gets the meta-data from lrmd. You
> can try it by hand like this:
>
> lrmadmin -M lsb httpd NULL
>
> Thanks,
>
> Dejan
>
> > Many thanks
> > Vishal
> >
> >
> > Message: 1
> > > Date: Mon, 22 Oct 2012 17:53:23 +0530
> > > From: vishal kumar <vishal.kanojwar at gmail.com>
> > > To: pacemaker at oss.clusterlabs.org
> > > Subject: [Pacemaker] lsb: could not parse meta-data
> > > Message-ID:
> > > <CANz=
> > > RdkSq4t-SbbF+KBNWoB2fGR7xu7G6MRUgBPfZASBvNPdnA at mail.gmail.com>
> > > Content-Type: text/plain; charset="iso-8859-1"
> > >
> > > Hi
> > >
> > > I am trying to configure pacemaker with corosync on RHEL 6.
> > >
> > > While trying to add lsb resources i get "could not parse meta-data".
> > >
> > > The pacemaker version is 1.1.7 . Below is the error what i get when i
> check
> > > for metadata in crm shell.
> > >
> > > *crm(live)ra# list lsb*
> > > *abrt-ccpp abrt-oops abrtd
> > > acpid atd*
> > > *auditd autofs certmonger
> > > cgconfig cgred*
> > > *corosync corosync-notifyd cpuspeed
> > > crond cups*
> > > *haldaemon halt heartbeat
> > > httpd ip6tables*
> > > *iptables irqbalance kdump
> > > killall ktune*
> > > *lvm2-lvmetad lvm2-monitor
> matahari-broker
> > > matahari-host matahari-network*
> > > *matahari-rpc matahari-service
> matahari-sysconfig
> > > matahari-sysconfig-console mcelogd*
> > > *mdmonitor messagebus netconsole
> > > netfs network*
> > > *nfs nfslock ntpd
> > > ntpdate oddjobd*
> > > *pacemaker portreserve postfix
> > > psacct qpidd*
> > > *quota_nld rdisc restorecond
> > > rhnsd rhsmcertd*
> > > *rngd rpcbind rpcgssd
> > > rpcidmapd rpcsvcgssd*
> > > *rsyslog sandbox saslauthd
> > > single smartd*
> > > *sshd sssd sysstat
> > > tuned udev-post*
> > > *ypbind *
> > > *crm(live)ra# meta lsb heartbeat*
> > > *ERROR: heartbeat:lsb: could not parse meta-data: *
> > > *crm(live)ra# meta lsb sshd*
> > > *ERROR: sshd:lsb: could not parse meta-data: *
> > > *crm(live)ra# meta lsb ntpd*
> > > *ERROR: ntpd:lsb: could not parse meta-data: *
> > > *crm(live)ra# meta lsb httpd*
> > > *ERROR: httpd:lsb: could not parse meta-data*
> > >
> > > Please do suggest me where am i going wrong.
> > > Thanks for the help.
> > >
> > > Thanks
> > > Vishal
> > > -------------- next part --------------
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> > > >
> > >
> > > ------------------------------
> > >
> > > Message: 2
> > > Date: Mon, 22 Oct 2012 14:48:31 +0200
> > > From: Florian Crouzat <gentoo at floriancrouzat.net>
> > > To: pacemaker at oss.clusterlabs.org
> > > Subject: Re: [Pacemaker] lsb: could not parse meta-data
> > > Message-ID: <5085409F.801 at floriancrouzat.net>
> > > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> > >
> > > Le 22/10/2012 14:23, vishal kumar a ?crit :
> > > > Hi
> > >
> > > > Please do suggest me where am i going wrong.
> > > > Thanks for the help.
> > > >
> > >
> > > See: crm ra help meta
> > > Then try something like: crm ra meta sshd lsb # parameters order matter
> > >
> > > Anyway, you won't learn anything out of meta-datas from a LSB
> > > initscript, because it's just a script (not cluster oriented, not a
> real
> > > resource agent), it's not multistate, nothing like that, only
> > > start/stop/monitor and default mandatory settings.
> > >
> > >
> > > --
> > > Cheers,
> > > Florian Crouzat
> > >
> > >
>
> > _______________________________________________
> > 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: 2
> Date: Tue, 23 Oct 2012 16:44:29 +0200
> From: Dejan Muhamedagic <dejanmm at fastmail.fm>
> To: The Pacemaker cluster resource manager
> <pacemaker at oss.clusterlabs.org>
> Subject: Re: [Pacemaker] Crm configure Error In Centos 5.4
> Message-ID: <20121023144428.GA3970 at squib>
> Content-Type: text/plain; charset=us-ascii
>
> Hi,
>
> On Mon, Oct 15, 2012 at 01:17:47PM +0530, Vinoth Narasimhan wrote:
> > Hi Guys,
> >
> > I just installed the latest heartbeat,pacemaker and corosync as per the
> > guidelines from the below link
> >
> > http://www.clusterlabs.org/wiki/Install#READ_ME_FIRST
> >
> > I am able to successfully configure the heartbeat and corosync and start
> it
> > as well.
> >
> > But when i tried to add the resource i am getting the error from python.
> >
> > [root at CHE-PSS-072 lib64]# crm configure
> > Traceback (most recent call last):
> > File "/usr/sbin/crm", line 41, in ?
> > crm.main.run()
> > File "/usr/lib64/python2.4/site-packages/crm/main.py", line 240, in run
> > parse_line(levels,["configure"])
> > File "/usr/lib64/python2.4/site-packages/crm/main.py", line 123, in
> > parse_line
> > lvl.new_level(pt[token],token)
> > File "/usr/lib64/python2.4/site-packages/crm/levels.py", line 70, in
> > new_level
> > self.current_level = level_obj()
> > File "/usr/lib64/python2.4/site-packages/crm/ui.py", line 1295, in
> > __init__
> > cib_factory.initialize()
> > File "/usr/lib64/python2.4/site-packages/crm/cibconfig.py", line 1780,
> in
> > initialize
> > if not self.import_cib():
> > File "/usr/lib64/python2.4/site-packages/crm/cibconfig.py", line 1454,
> in
> > import_cib
> > self.doc,cib = read_cib(cibdump2doc)
> > File "/usr/lib64/python2.4/site-packages/crm/xmlutil.py", line 72, in
> > read_cib
> > doc = fun(params)
> > File "/usr/lib64/python2.4/site-packages/crm/xmlutil.py", line 53, in
> > cibdump2doc
> > doc = xmlparse(p.stdout)
> > File "/usr/lib64/python2.4/site-packages/crm/xmlutil.py", line 30, in
> > xmlparse
> > except xml.parsers.expat.ExpatError,msg:
> > AttributeError: 'module' object has no attribute 'expat'
>
> Hmm, the official python documentation
> (http://docs.python.org/library/pyexpat.html) states that expat
> is "New in version 2.0". Can you check your python installation.
> AFAIK, crmsh is being used on various EL5.
>
> Thanks,
>
> Dejan
>
> > However i am get the status correctly.
> >
> > [root at CHE-PSS-072 lib64]# crm status
> > ============
> > Last updated: Mon Oct 15 00:46:53 2012
> > Stack: Heartbeat
> > Current DC: che-pss-072.ps.in (dd4d1fd0-97ff-4a28-aac2-302ee1066e4c) -
> > partition with quorum
> > Version: 1.0.12-unknown
> > 2 Nodes configured, unknown expected votes
> > 0 Resources configured.
> > ============
> >
> > Online: [ che-pss-072.ps.in ops-pss-084.ps.in ]
> >
> > Any help is greatly appreciated to solve the error.
> >
> > Thanks,
> > vinoth.
>
> > _______________________________________________
> > 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: Tue, 23 Oct 2012 16:46:14 +0200
> From: Dejan Muhamedagic <dejanmm at fastmail.fm>
> To: The Pacemaker cluster resource manager
> <pacemaker at oss.clusterlabs.org>
> Subject: Re: [Pacemaker] external/ssh stonith and repeated reboots
> Message-ID: <20121023144614.GB3970 at squib>
> Content-Type: text/plain; charset=us-ascii
>
> Hi,
>
> On Tue, Oct 16, 2012 at 03:00:08PM +1100, Andrew Beekhof wrote:
> > On Sun, Oct 14, 2012 at 5:04 PM, James Harper
> > <james.harper at bendigoit.com.au> wrote:
> > > I'm using external/ssh in my test cluster (a bunch of vm's), and for
> some reason the cluster has tried to terminate it but failed, like:
> >
> > Try fence_xvm instead. Its actually reliable.
> > You'd need the fence-virtd on the host and guests package and I've had
> > plenty of success with the following as the config file on the host.
> > Make sure key_file exists everywhere, start fence-virtd and test with
> > "fence_xvm -o list" on the guest(s)
>
> There's also external/libvirt which should do fine.
>
> > ssh based fencing isn't just "not for production" its a flat out
> terrible idea.
> > With much handwaving it is barely usable even for testing as it
> > requires the target to be alive, reachable and behaving.
>
> Indeed.
>
> Thanks,
>
> Dejan
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 23 Oct 2012 10:04:31 -0500 (CDT)
> From: Andrew Martin <amartin at xes-inc.com>
> To: The Pacemaker cluster resource manager
> <pacemaker at oss.clusterlabs.org>
> Subject: Re: [Pacemaker] Behavior of Corosync+Pacemaker with DRBD
> primary power loss
> Message-ID: <5651a700-b509-40ec-8d79-49b77e53c30e at zimbra>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hello,
>
> Under the Clusters from Scratch documentation, allow-two-primaries is set
> in the DRBD configuration for an active/passive cluster:
>
> http://www.clusterlabs.org/doc/en-US/Pacemaker/1.1-crmsh/html-single/Clusters_from_Scratch/index.html#_write_the_drbd_config
>
> "TODO: Explain the reason for the allow-two-primaries option"
>
> Is the reason for allow-two-primaries in this active/passive cluster
> (using ext4, a non-cluster filesystem) to allow for failover in the type of
> situation I have described (where the old primary/master is suddenly
> offline like with a power supply failure)? Are split-brains prevented
> because Pacemaker ensures that only one node is promoted to Primary at any
> time?
>
> Is it possible to recover from such a failure without allow-two-primaries?
>
> Thanks,
>
> Andrew
>
> ----- Original Message -----
>
> From: "Andrew Martin" <amartin at xes-inc.com>
> To: "The Pacemaker cluster resource manager" <
> pacemaker at oss.clusterlabs.org>
> Sent: Friday, October 19, 2012 10:45:04 AM
> Subject: [Pacemaker] Behavior of Corosync+Pacemaker with DRBD primary
> power loss
>
>
> Hello,
>
> I have a 3 node Pacemaker + Corosync cluster with 2 "real" nodes, node0
> and node1, running a DRBD resource (single-primary) and the 3rd node in
> standby acting as a quorum node. If node0 were running the DRBD resource,
> and thus is DRBD primary, and its power supply fails, will the DRBD
> resource be promoted to primary on node1?
>
> If I simply cut the DRBD replication link, node1 reports the following
> state:
> Role:
> Secondary/Unknown
>
> Disk State:
> UpToDate/DUnknown
>
> Connection State:
> WFConnection
>
>
> I cannot manually promote the DRBD resource because the peer is not
> outdated:
> 0: State change failed: (-7) Refusing to be Primary while peer is not
> outdated
> Command 'drbdsetup 0 primary' terminated with exit code 11
>
> I have configured the CIB-based crm-fence-peer.sh utility in my drbd.conf
> fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
> but I do not believe it would be applicable in this scenario.
>
> If node0 goes offline like this and doesn't come back (e.g. after a
> STONITH), does Pacemaker have a way to tell node1 that its peer is outdated
> and to proceed with promoting the resource to primary?
>
> Thanks,
>
> Andrew
>
> _______________________________________________
> 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
>
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>
> ------------------------------
>
> Message: 5
> Date: Tue, 23 Oct 2012 10:29:44 -0500
> From: Justin Pasher <justinp at distribion.com>
> To: pacemaker at oss.clusterlabs.org
> Subject: Re: [Pacemaker] "Simple" LVM/drbd backed Primary/Secondary
> NFS cluster doesn't always failover cleanly
> Message-ID: <5086B7E8.7010900 at distribion.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> ----- Original Message -----
> > From: Andreas Kurz <andreas at hastexo.com>
> > Date: Sun, 21 Oct 2012 01:38:46 +0200
> > Subject: Re: [Pacemaker] "Simple" LVM/drbd backed Primary/Secondary
> NFS cluster doesn't always failover cleanly
> > To: pacemaker at oss.clusterlabs.org
> >
> >
> > On 10/18/2012 08:02 PM, Justin Pasher wrote:
> >> I have a pretty basic setup by most people's standards, but there must
> >> be something that is not quite right about it. Sometimes when I force a
> >> resource failover from one server to the other, the clients with the NFS
> >> mounts don't cleanly migrate to the new server. I configured this using
> >> a few different "Pacemaker-DRBD-NFS" guides out there for reference (I
> >> believe they were the Linbit guides).
> > Are you using the latest "exportfs" resource-agent from github-repo? ...
> > there have been bugfixes/improvements... and try to move the VIP for
> > each export to the end of its group so the IP where the clients connect
> > is started at the last/stopped at the first position.
> >
> > Regards,
> > Andreas
>
> I'm current running the version that comes with the Debian
> squeeze-backports resource-agents package (1:3.9.2-5~bpo60+1). I went
> ahead and grabbed a copy of exportfs from the git repository. It's a
> little risky for me to update the file right now, since the two
> resources I am worried about the most are the NFS shares for the
> XenServer VDIs, so when it has a hiccup in the connection to the NFS
> server, things start exploding (e.g. guest VMs start having disk errors
> and go read-only).
>
> I scanned through the changes real quick and the biggest change I
> noticed was how the .rmtab file backup is restored (it sorts and filters
> unique entries instead of just concatenating the results to the end of
> /var/lib/nfs/rmtab). I had actually tweaked that a little bit myself
> before when I was trying to trace down the problem.
>
> Ultimately I think my problem is more related to the NFS server itself
> and how it handles "unknown" client connections after a failover. I've
> see people here and there mention that /var/lib/nfs should be on the
> replicated device to maintain consistency after fail over, but the
> exportfs resource agent doesn't do anything like that. Is that not
> actually needed anymore? At any rate, in my situation, the problem is
> that I am maintaining four independent NFS shares and each one can be
> failed over separately (and running on either server at any time), so a
> simple copy of the directory won't work since there is no "master"
> server at any given time.
>
> Also, I did find a bug in the way backup_rmtab() filters the export list
> for its backup. Since it looks for a leading AND trailing colon (:), it
> doesn't properly copy information about mounts that pulled from
> subdirectories under the NFS mount (e.g. instead of mounting /home, a
> server might mount /home/username such as with autofs, which won't get
> copied to the .rmtab backup). I'll file a bug report about that.
>
> Thanks.
>
> --
> Justin Pasher
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 23 Oct 2012 10:50:11 -0500
> From: Cal Heldenbrand <cal at fbsdata.com>
> To: pacemaker at oss.clusterlabs.org
> Subject: [Pacemaker] crm_simulate a resource failure
> Message-ID:
> <
> CAAcwKhf6iLv9q9H3BgTSQ5scLPpuDmUeZ1fLWhYf09nRwRjn2g at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi everyone,
>
> I'm not able to find documentation or examples on this. If I have a cloned
> primitive set across a cluster, how can I simulate a failure of a resource
> on an individual node? I mainly want to see the scores on why a particular
> action is taken so I can adjust my configs.
>
> I think the --op-fail parameter is what I need, but I just don't get the
> syntax of the value in the man page.
>
> Thank you!
>
> --Cal
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> ------------------------------
>
> _______________________________________________
> Pacemaker mailing list
> Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
>
> End of Pacemaker Digest, Vol 59, Issue 59
> *****************************************
>
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