[Linux-cluster] clusvcadm : Could not connect to resource group manager
Digimer
lists at alteeve.ca
Fri Aug 24 13:58:33 UTC 2012
A few things;
1. Please repost your cluster.conf file with line wraps in plain text.
2. Manual fencing is not supported in any way, please use real fencing,
like IPMI, iLO, etc.
3. Please stop the cluster entirely, start 'tail -f -n 0
/var/log/messages' on both nodes, then start cman, then start rgmanager.
Please share the output from the logs.
Digimer
On 08/24/2012 06:43 AM, PARAM KRISH wrote:
> Hi, Thanks for the help. I hope we are nearing to the problem.
>
> I enabled logging , this is how my cluster.conf looks like
>
> <?xml version="1.0"?>
> <cluster alias="newCluster" config_version="16" name="newCluster">
> <logging debug="on"/>
> <cman expected_votes="1" two_node="1"/>
> <clusternodes>
> <clusternode name="server1" nodeid="1" votes="1">
> <fence><method name="single"><device
> name="human"/></method></fence></clusternode><clusternode name="server2"
> nodeid="2" votes="1"><fence><method name="single"><device
> name="human"/></method></fence></clusternode></clusternodes><fencedevices>
>
> </fencedevices><rm><failoverdomains><failoverdomain
> name="failOver" nofailback="0" ordered="1"
> restricted="0"><failoverdomainnode name="server1"
> priority="1"/><failoverdomainnode name="server2"
> priority="2"/></failoverdomain></failoverdomains><resources><ip
> address="192.168.61.130" monitor_link="1"/><apache
> config_file="conf/httpd.conf" name="httpd" server_root="/etc/httpd"
> shutdown_wait="0"/></resources><service autostart="1" domain="failOver"
> exclusive="1" name="Apache" recovery="relocate"><ip
> address="192.168.61.130" monitor_link="1"><apache
> config_file="conf/httpd.conf" name="Apache" server_root="/etc/httpd"
> shutdown_wait="0"/></ip></service><service autostart="1"
> domain="failOver" exclusive="1" name="website" recovery="relocate"><ip
> ref="192.168.61.130"><apache
> ref="httpd"/></ip></service></rm><fence_daemon clean_start="1"
> post_fail_delay="0" post_join_delay="3"/><logging debug="on"/></cluster>
>
> There is no logging happening in /var/run/cluster/
>
> [root at server1 ~]# ls /var/run/cluster/
> apache ccsd.pid ccsd.sock rgmanager.sk <http://rgmanager.sk>
>
> I started resource manager in foreground and it says like ..
>
> failed acquiring lockspace: No such device
> Locks not working!
>
> What next i could do ?
>
> -Param
>
> On Fri, Aug 24, 2012 at 3:18 PM, emmanuel segura <emi2fast at gmail.com
> <mailto:emi2fast at gmail.com>> wrote:
>
> /etc/init.d/rgmanager start or service rgmanager start
>
>
> 2012/8/24 Heiko Nardmann <heiko.nardmann at itechnical.de
> <mailto:heiko.nardmann at itechnical.de>>
>
> It is strange that strace shows that
> /var/run/cluster/rgmanager.sk <http://rgmanager.sk> is missing.
>
> Normally it is helpful to see the complete cluster.conf. Could
> you provide that one?
>
> Also of interest is /var/log/cluster/rgmanager.log - do you have
> debug enabled inside cluster.conf?
>
> Maybe it is possible to start rgmanager in the foreground (-f)
> with strace? That might also be a way to show why the
> rgmanager.sk <http://rgmanager.sk> is missing ...
>
> Just some ideas ...
>
>
> Kind regards,
>
> Heiko
>
> Am 24.08.2012 11 <tel:24.08.2012%2011>:04, schrieb PARAM KRISH:
>
> All,
>
> I am trying to setup a simple two node cluster in my laptop
> using two RHEL VM's.
>
> Everything looks just fine to me but i am unable to enable a
> apache service though it works beautifully when tried with
> "rg_test test" on both the nodes.
>
> What could be the problem ? Please help. I am a novice in
> red hat cluster but learnt a bit of it in the last few days
> while trying to fix all the problems encountered.
>
> Here are the details.
>
> [root at server1 ~]# clustat
> Cluster Status for newCluster @ Thu Aug 23 00:29:32 2012
> Member Status: Quorate
>
> Member Name ID Status
> ------ ---- ---- ------
> server1 1 Online, Local
> server2 2 Online
>
> [root at server1 ~]# clustat -x
> <?xml version="1.0"?>
> <clustat version="4.1.1">
> <cluster name="newCluster" id="43188" generation="250536"/>
> <quorum quorate="1" groupmember="0"/>
> <nodes>
> <node name="server1" state="1" local="1" estranged="0"
> rgmanager="0" rgmanager_master="0" qdisk="0"
> nodeid="0x00000001"/>
> <node name="server2" state="1" local="0" estranged="0"
> rgmanager="0" rgmanager_master="0" qdisk="0"
> nodeid="0x00000002"/> </nodes>
> </clustat>
>
> [root at server2 ~]# clustat
> Cluster Status for newCluster @ Thu Aug 23 03:13:34 2012
> Member Status: Quorate
>
> Member Name ID Status
> ------ ---- ---- ------
> server1 1 Online
> server2 2 Online, Local
>
> [root at server2 ~]# clustat -x
> <?xml version="1.0"?>
> <clustat version="4.1.1">
> <cluster name="newCluster" id="43188" generation="250536"/>
> <quorum quorate="1" groupmember="0"/>
> <nodes>
> <node name="server1" state="1" local="0" estranged="0"
> rgmanager="0" rgmanager_master="0" qdisk="0"
> nodeid="0x00000001"/>
> <node name="server2" state="1" local="1" estranged="0"
> rgmanager="0" rgmanager_master="0" qdisk="0"
> nodeid="0x00000002"/>
> </nodes>
> </clustat>
>
>
> [root at server2 ~]# clusvcadm -e Apache
> Local machine trying to enable service:Apache...Could not
> connect to resource group manager
>
> strace cluvcsadm -e Apache
> ...
> stat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 4),
> ...}) = 0
> mmap2(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fb5000
> write(1, "Local machine trying to enable s"..., 48Local
> machine trying to enable service:Apache...) = 48
> socket(PF_FILE, SOCK_STREAM, 0) = 5
> connect(5, {sa_family=AF_FILE,
> path="/var/run/cluster/rgmanag__er.sk <http://rgmanager.sk>
> <http://rgmanager.sk>"...}, 110) = -1 ENOENT (No such file
> or directory)
>
> close(5) = 0
> write(1, "Could not connect to resource gr"..., 44Could not
> connect to resource group manager
> ) = 44
> exit_group(1) = ?
>
>
> [root at server1 ~]# hostname
> server1.localdomain
>
> [root at server1 ~]# cat /etc/hosts
> # Do not remove the following line, or various programs
> # that require network functionality will fail.
> #127.0.0.1 server1.localdomain server1
> localhost.localdomain localhost
> 192.168.61.132 server1.localdomain server1
> 192.168.61.133 server2.localdomain server2
> ::1 localhost6.localdomain6 localhost6
>
>
> Package versions :
> luci-0.12.2-24.el5
> ricci-0.12.2-24.el5
> rgmanager-2.0.52-9.el5
> modcluster-0.12.1-2.el5
> cluster-cim-0.12.1-2.el5
> system-config-cluster-1.0.57-7
> lvm2-cluster-2.02.74-3.el5
> cluster-snmp-0.12.1-2.el5
>
> [root at server1 log]# cman_tool status
> Version: 6.2.0
> Config Version: 15
> Cluster Name: newCluster
> Cluster Id: 43188
> Cluster Member: Yes
> Cluster Generation: 250536
> Membership state: Cluster-Member
> Nodes: 2
> Expected votes: 1
> Total votes: 2
> Quorum: 1
> Active subsystems: 2
> Flags: 2node
> Ports Bound: 0
> Node name: server1
> Node ID: 1
> Multicast addresses: 239.192.168.93
> Node addresses: 192.168.61.132
>
> Redhat :Red Hat Enterprise Linux Server release 5.6
> (Tikanga)2.6.18-238.el5xen
>
> [root at server1 log]# service rgmanager status
> clurgmgrd (pid 9775) is running...
>
> [root at server1 log]# netstat -na | grep 11111
> tcp 0 0 0.0.0.0:11111 <http://0.0.0.0:11111>
> <http://0.0.0.0:11111> 0.0.0.0:*
> LISTEN
>
>
> Please let me know if you can help. One thing i noticed was
> that in the "clustat" it does not show "rgmanager" against
> both the nodes but i see the service is just running fine.
>
> *Note : No iptables, no SELinux enabled.*
> *
>
> *
> Hope i have given all the details required to help me
> quickly. Thanks.
>
> -Param
>
>
>
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>
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Digimer
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