I was able to download RHEL5 32bit ISO evaluation copy so i went with it rather than downloading RHEL6 just for my PoC on two node cluster.
I was not blinding following RHEL4 doc which is why i did not look for installing those packages once after i did "Cluster" and "ClusterStorage" group install assuming everything must be there. I started having a doubt about any missing packages because of those dlm errors reported in the messages i sent earlier. Aug 23 05:02:59 server1 dlm_controld[27892]: group_init error (nil) 111 Aug 23 05:02:59 server1 fenced[27886]: group_init error (nil) 111 Searching on some forums always gives me old replies about RHEL4 and error which talks about some dlm rpm's, thats why. -Param On Sat, Aug 25, 2012 at 10:07 AM, Digimer <li...@alteeve.ca> wrote: > I haven't used the rhcs stable 2 (version in RHEL 5) in some time, and I > don't remember for sure. I don't think I've seen magma though. > > Why are you following the docs for RHEL 4, installing on RHEL 5 when > RHEL 6 is the current version? > > On 08/25/2012 12:14 AM, PARAM KRISH wrote: > > Digimer, > > > > I just want to confirm if i am missing any rpm's in my setup. > > > > I referred this site > > http://www.centos.org/docs/4/html/rh-cs-en-4/ap-rhcs-sw-inst-cust.html > > to install the rpm's in red hat 5.6 but these packages *magma**, *dlm** > > are missing in the CD, does it mean these are really important ? I > > installed using 'yum group install' for "Cluster" and "ClusterStorage" > > > > This is what the yum.log says from server1. Please confirm if there is > > something missing. > > > > -Param > > > > On Fri, Aug 24, 2012 at 9:06 PM, PARAM KRISH <mkpa...@gmail.com > > <mailto:mkpa...@gmail.com>> wrote: > > > > Please find below the details. > > > > 1. cluster.conf : Please find attached herewith. > > > > 2. Is fencing in any form mandatory for a setup as simple as this ? > > I am just using two redhat5 VM's within VMware fusion in my Mac. > > What kind of fencing is applicable to this kind of setup, that can > > also benefit me ? All that i want to see from this PoC is to add > > some services like Apache, MySQL to see how quick and reliable the > > cluster to pick the service failures etc., > > > > 3. Please find attached the messages from server1 and server2 when i > > did "service cman stop and start" on both nodes one after the other. > > In server1 both stop and start went fine but clustat showed "Could > > not connect to CMAN: connection refused". If i do "cman_tool join" > > on both nodes one after the other, things look green > > > > Also, Am i missing any rpm's that are most important ? I used yum > > group install "Clustering" and "ClusterStorage" to install all the > > packages. > > > > -Param > > > > On Fri, Aug 24, 2012 at 7:28 PM, Digimer <li...@alteeve.ca > > <mailto:li...@alteeve.ca>> wrote: > > > > 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@server1 ~]# ls /var/run/cluster/ > > > apache ccsd.pid ccsd.sock rgmanager.sk > > <http://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 > > <emi2f...@gmail.com <mailto:emi2f...@gmail.com> > > > <mailto:emi2f...@gmail.com <mailto:emi2f...@gmail.com>>> > wrote: > > > > > > /etc/init.d/rgmanager start or service rgmanager start > > > > > > > > > 2012/8/24 Heiko Nardmann <heiko.nardm...@itechnical.de > > <mailto:heiko.nardm...@itechnical.de> > > > <mailto:heiko.nardm...@itechnical.de > > <mailto:heiko.nardm...@itechnical.de>>> > > > > > > It is strange that strace shows that > > > /var/run/cluster/rgmanager.sk <http://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> > > <http://rgmanager.sk> is missing ... > > > > > > Just some ideas ... > > > > > > > > > Kind regards, > > > > > > Heiko > > > > > > Am 24.08.2012 11 <tel:24.08.2012%2011> > > <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@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@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@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@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@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://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@server1 ~]# hostname > > > server1.localdomain > > > > > > [root@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@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@server1 log]# service rgmanager status > > > clurgmgrd (pid 9775) is running... > > > > > > [root@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> > > > <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 > > > > > > > > > > > > -- > > > Linux-cluster mailing list > > > Linux-cluster@redhat.com > > <mailto:Linux-cluster@redhat.com> > > <mailto:Linux-cluster@redhat.com <mailto: > Linux-cluster@redhat.com>> > > > > https://www.redhat.com/__mailman/listinfo/linux-cluster > > > <https://www.redhat.com/mailman/listinfo/linux-cluster > > > > > > > > > > > > > > > > > -- > > > esta es mi vida e me la vivo hasta que dios quiera > > > > > > -- > > > Linux-cluster mailing list > > > Linux-cluster@redhat.com <mailto:Linux-cluster@redhat.com> > > <mailto:Linux-cluster@redhat.com <mailto: > Linux-cluster@redhat.com>> > > > https://www.redhat.com/mailman/listinfo/linux-cluster > > > > > > > > > > > > > > > -- > > > Linux-cluster mailing list > > > Linux-cluster@redhat.com <mailto:Linux-cluster@redhat.com> > > > https://www.redhat.com/mailman/listinfo/linux-cluster > > > > > > > > > -- > > Digimer > > Papers and Projects: https://alteeve.ca > > > > > > > > > -- > Digimer > Papers and Projects: https://alteeve.ca >
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