Thanks! Srinivas was helping me troubleshoot that last night with a series of 
strace(es) that started to point to the Kernel issues - and then he realized 
that it was the wrong version! I updated the version to 
2.6.39-400.215.10.el6uek.x86_64 on both of my ocfs boxes and service o2cb 
enable brought the global HB online with no issues!

Warm regards and thanks!

Jon


> On Nov 13, 2014, at 12:00 PM, ocfs2-users-requ...@oss.oracle.com wrote:
> 
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> When replying, please edit your Subject line so it is more specific
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> 
> Today's Topics:
> 
>   1. Re: Ocfs2-users Digest, Vol 130, Issue 1 (Richard Sibthorp)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Thu, 13 Nov 2014 14:16:05 +0000
> From: Richard Sibthorp <richard.sibth...@oracle.com>
> Subject: Re: [Ocfs2-users] Ocfs2-users Digest, Vol 130, Issue 1
> To: ocfs2-users@oss.oracle.com
> Message-ID: <5464bd25.8010...@oracle.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
> Hi Jon,
> 
> The kernel you are using includes the ocfs2 kernel modules at version 
> 1.6.3. The global heartbeat feature was introduced in ocfs2 1.8.
> 
> I haven't checked whether any of the 2.6.32-based uek's include ocfs2 
> 1.8, but certainly the 2.6.39 and later (aka uek2, uek3) ones do.
> 
> I assume from below you have an Oracle support license - at least for 
> rdbms if not Oracle Linux. When using ocfs2 for rdbms resources, your 
> rdbms license entitles you to ocfs2 support via MOS, though for 
> general-purpose ocfs2 issues an Oracle Linux Support contract needs to 
> be in place. This would have a separate CSI from that of licensed 
> products - obviously open-source products are not licensed, but if you 
> require support you need a support contract.
> 
> You may also want to review MOS documents 1552519.1 and 1553162.1
> 
> Best regards,
> Richard.
> 
> On 13/11/2014 02:27, ocfs2-users-requ...@oss.oracle.com wrote:
>> Send Ocfs2-users mailing list submissions to
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>> or, via email, send a message with subject or body 'help' to
>>      ocfs2-users-requ...@oss.oracle.com
>> 
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>> 
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Ocfs2-users digest..."
>> 
>> 
>> Today's Topics:
>> 
>>    1. OCFS2 v1.8 on VMware VMs global heartbeat woes (Jon Norris)
>> 
>> 
>> ----------------------------------------------------------------------
>> 
>> Message: 1
>> Date: Wed, 12 Nov 2014 18:26:51 -0800
>> From: Jon Norris <jon_nor...@apple.com>
>> Subject: [Ocfs2-users] OCFS2 v1.8 on VMware VMs global heartbeat woes
>> To: ocfs2-users@oss.oracle.com
>> Message-ID: <fff084ca-12f0-4fa1-bb38-b70f5a4a6...@apple.com>
>> Content-Type: text/plain; charset="utf-8"
>> 
>> Running two VMs on ESXi 5.1.0 and trying to get global heart beat (HB) 
>> working with no luck (on about my 20th rebuild and redo)
>> 
>> Environment:
>> 
>> Two VMware based VMs running
>> 
>> # cat /etc/oracle-release
>> 
>> Oracle Linux Server release 6.5
>> 
>> # uname -r
>> 
>> 2.6.32-400.36.8.el6uek.x86_64
>> 
>> # yum list installed  | grep ocfs
>> 
>> ocfs2-tools.x86_64               1.8.0-11.el6           @oel-latest
>> 
>> # yum list installed | grep uek
>> 
>> kernel-uek.x86_64                2.6.32-400.36.8.el6uek @oel-latest
>> kernel-uek-firmware.noarch       2.6.32-400.36.8.el6uek @oel-latest
>> kernel-uek-headers.x86_64        2.6.32-400.36.8.el6uek @oel-latest
>> 
>> Configuration:
>> 
>> The shared data stores (HB and mounted OCFS) are setup in a similar way as 
>> described by VMWare and Oracle for shared RAC VMWare based data stores. All 
>> blogs, wikis and VMWare KB docs show similar setup, VM shared SCSI settings 
>> [multi-writer], shared disk [independant + persistent] etc. such as:
>> 
>> http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1034165
>>  
>> <http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1034165>
>>  )
>> 
>> The devices can be seen by both VMs after in the OS. I have used the same 
>> configuration to run an OCFS2 setup with local heartbeat, and that works 
>> fine (cluster starts up and the OCFS2 file system mounts with no issues)
>> 
>> I followed similar procedures as show in an Oracle blog + docs: 
>> https://docs.oracle.com/cd/E37670_01/E37355/html/ol_instcfg_ocfs2.html 
>> <https://docs.oracle.com/cd/E37670_01/E37355/html/ol_instcfg_ocfs2.html> and 
>> https://blogs.oracle.com/wim/entry/ocfs2_global_heartbeat 
>> <https://blogs.oracle.com/wim/entry/ocfs2_global_heartbeat> with no luck.
>> 
>> The shared SCSI controllers are VMware paravirtual and set to ?shared none? 
>> as suggested by the VMware RAC shared disk KB (previously mentioned)
>> 
>> After the shared Linux devices have been added to both VMs and are seen by 
>> both VMs in the OS (ls /dev/sd* shows the devices on each) I format the 
>> global HB devices in a way similar to the following from one VM:
>> 
>> # mkfs.ocfs2 -b 4K -C 4K -J size=4M -N 4 -L ocfs2vol1 --cluster-name=test 
>> --cluster-stack=o2cb --global-heartbeat /dev/sdc
>> # mkfs.ocfs2 -b 4K -C 4K -J size=4M -N 4 -L ocfs2vol2 --cluster-name=test 
>> --cluster-stack=o2cb --global-heartbeat /dev/sdd
>> 
>>> From both VMs you can run the following and see:
>> 
>> # mounted.ocfs2 -d
>> 
>> Device    Stack  Cluster  F  UUID                              Label
>> /dev/sdc  o2cb   test     G  5620F19D43D840C7A46523019AE15A96  ocfs2vol1
>> /dev/sdd  o2cb   test     G  9B9182279ABD4FD99F695F91488C94C1  ocfs2vol2
>> 
>> I then add the global HB devices to the ocfs config file with similar 
>> commands:
>> 
>> # o2cb add-heartbeat test 5620F19D43D840C7A46523019AE15A96
>> # o2cb add-heartbeat test 9B9182279ABD4FD99F695F91488C94C1
>> 
>> Thus far looking good (heh, but then all we?ve done is format ocfs2 with 
>> options and updated a text file) - then I do the following:
>> 
>> # o2cb heartbeat-mode test global
>> 
>> All this being done on one node in the cluster I copy the following to the 
>> other node (with hostnames changed here, though the actual hostname = output 
>> of the hostname command on each node):
>> 
>> # cat /etc/ocfs2/cluster.conf
>> 
>> node:
>>      name = clusterhost1.mydomain.com
>>      cluster = test
>>      number = 0
>>      ip_address = 10.143.144.12
>>      ip_port = 7777
>> 
>> node:
>>      name = clusterhost2.mydomain.com
>>      cluster = test
>>      number = 1
>>      ip_address = 10.143.144.13
>>      ip_port = 7777
>> 
>> cluster:
>>      name = test
>>      heartbeat_mode = global
>>      node_count = 2
>> 
>> heartbeat:
>>      cluster = test
>>      region = 5620F19D43D840C7A46523019AE15A96
>> 
>> heartbeat:
>>      cluster = test
>>      region = 9B9182279ABD4FD99F695F91488C94C1
>> 
>> The same config works fine with heartbeat_mode set to local and the global 
>> heartbeat devices removed, and I can mount a shared FS - the local HB 
>> interfaces are IPv4 on a private L2 non routed VLAN, are up and each node 
>> can ping each other.
>> 
>> Once the config is copied to each node and have already run:
>> 
>> # service o2cb configure
>> 
>> Which completes in local heartbeat mode fine, so the cluster will start on 
>> boot and the params are default for timeouts etc.
>> 
>> I check that the service on both nodes unloads and loads modules with no 
>> issues:
>> 
>> # service o2cb unload
>> 
>> Clean userdlm domains: OK
>> Unmounting ocfs2_dlmfs filesystem: OK
>> Unloading module "ocfs2_dlmfs": OK
>> Unloading module "ocfs2_stack_o2cb": OK
>> Unmounting configfs filesystem: OK
>> Unloading module "configfs": OK
>> 
>> # service o2cb load
>> 
>> Loading filesystem "configfs": OK
>> Mounting configfs filesystem at /sys/kernel/config: OK
>> Loading stack plugin "o2cb": OK
>> Loading filesystem "ocfs2_dlmfs": OK
>> Mounting ocfs2_dlmfs filesystem at /dlm: OK
>> 
>> # mount -v
>> ?
>> ?.
>> debugfs on /sys/kernel/debug type debugfs (rw)
>> ?.
>> ocfs2_dlmfs on /dlm type ocfs2_dlmfs (rw)
>> 
>> #  lsmod | grep ocfs
>> 
>> ocfs2_dlmfs            18026  1
>> ocfs2_stack_o2cb        3606  0
>> ocfs2_dlm             196778  1 ocfs2_stack_o2cb
>> ocfs2_nodemanager     202856  3 ocfs2_dlmfs,ocfs2_stack_o2cb,ocfs2_dlm
>> ocfs2_stackglue        11283  2 ocfs2_dlmfs,ocfs2_stack_o2cb
>> configfs               25853  2 ocfs2_nodemanager
>> 
>> Looks good on both nodes?. then (sigh)
>> 
>> # service o2cb enable
>> 
>> Writing O2CB configuration: OK
>> Setting cluster stack "o2cb": OK
>> Registering O2CB cluster "test": Failed
>> o2cb: Unable to access cluster service while registering heartbeat mode 
>> 'global'
>> Unregistering O2CB cluster "test": OK
>> 
>> I have searched for the error string and have come up with a huge ZERO on 
>> help  - and the local OS log messages are equally unhelpful:
>> 
>> # tail /var/log/messages
>> 
>> Nov 12 21:54:53 clusterhost1 o2cb.init: online test
>> Nov 13 00:58:38 clusterhost1 o2cb.init: online test
>> Nov 13 01:00:06 clusterhost1 o2cb.init: offline test 0
>> Nov 13 01:00:06 clusterhost1 kernel: ocfs2: Unregistered cluster interface 
>> o2cb
>> Nov 13 01:01:14 clusterhost1 kernel: OCFS2 Node Manager 1.6.3
>> Nov 13 01:01:14 clusterhost1 kernel: OCFS2 DLM 1.6.3
>> Nov 13 01:01:14 clusterhost1 kernel: ocfs2: Registered cluster interface o2cb
>> Nov 13 01:01:14 clusterhost1 kernel: OCFS2 DLMFS 1.6.3
>> Nov 13 01:01:14 clusterhost1 kernel: OCFS2 User DLM kernel interface loaded
>> Nov 13 01:03:32 clusterhost1 o2cb.init: online test
>> 
>> Dmesg shows the same:
>> 
>> # dmesg
>> 
>> OCFS2 Node Manager 1.6.3
>> OCFS2 DLM 1.6.3
>> ocfs2: Registered cluster interface o2cb
>> OCFS2 DLMFS 1.6.3
>> OCFS2 User DLM kernel interface loaded
>> Slow work thread pool: Starting up
>> Slow work thread pool: Ready
>> FS-Cache: Loaded
>> FS-Cache: Netfs 'nfs' registered for caching
>> eth0: no IPv6 routers present
>> eth1: no IPv6 routers present
>> ocfs2: Unregistered cluster interface o2cb
>> OCFS2 Node Manager 1.6.3
>> OCFS2 DLM 1.6.3
>> ocfs2: Registered cluster interface o2cb
>> OCFS2 DLMFS 1.6.3
>> OCFS2 User DLM kernel interface loaded
>> ocfs2: Unregistered cluster interface o2cb
>> OCFS2 Node Manager 1.6.3
>> OCFS2 DLM 1.6.3
>> ocfs2: Registered cluster interface o2cb
>> OCFS2 DLMFS 1.6.3
>> OCFS2 User DLM kernel interface loaded
>> 
>> The filesystem looks fine and this can be run from both hosts in the cluster:
>> 
>> # fsck.ocfs2 -n /dev/sdc
>> 
>> fsck.ocfs2 1.8.0
>> Checking OCFS2 filesystem in /dev/sdc:
>>   Label:              ocfs2vol1
>>   UUID:               5620F19D43D840C7A46523019AE15A96
>>   Number of blocks:   524288
>>   Block size:         4096
>>   Number of clusters: 524288
>>   Cluster size:       4096
>>   Number of slots:    4
>> 
>> # fsck.ocfs2 -n /dev/sdd
>> 
>> fsck.ocfs2 1.8.0
>> Checking OCFS2 filesystem in /dev/sdd:
>>   Label:              ocfs2vol2
>>   UUID:               9B9182279ABD4FD99F695F91488C94C1
>>   Number of blocks:   524288
>>   Block size:         4096
>>   Number of clusters: 524288
>>   Cluster size:       4096
>>   Number of slots:    4
>> 
>> What am I missing? I?ve re-done this, re-created the devices a few too many 
>> times (thinking I may have missed something) but I am mystified. From all 
>> outer appearances I have two VMs that can see and in local heartbeat mode 
>> mount a shared OCFS2 filesystem and access it (have it running in local 
>> heartbeat mode for a cluster of rsyslog servers that are being load balanced 
>> by an F5 LTM VS with no issues) I am stumped on how to get global HB devices 
>> setup, though I have read and re-read the user guides, troubleshooting 
>> guides and wikis/blogs on how to make that work until my eyes hurt.
>> 
>> Mounted the debugfs and ran the debugfs.ocfs2 utility but am unfamiliar of 
>> what I should be looking for there (or if this is where I would look for 
>> cluster not coming online errors)
>> 
>> As the oc2b/ocfs modules are all kernel based I am not 100% sure how to 
>> increase debug information without digging into the source code and mucking 
>> around there.
>> 
>> Any guidance or lessons learned (or things to check) would be super :) and 
>> if works warrant a happy scream of joy from my frustrated cube!
>> 
>> 
>> Warm regards,
>> 
>> Jon
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