redhat 6.2 cluster
Hello Experts,
Please help me with the exact steps on configuring two node cluster on RHEL 6.2,
I failed to configure the simplest cluster by below steps,
1- install RHEL 6.2 64-bit on both nodes
2- add to hosts file of each server ( 1 IP in local NW and another in IP private NW).
x.x.x.x node1-pub
z.z.z.z node2-pub
y.y.y.y node1-pvt
t.t.t.t node2-pvt
3- yum install ricci ( on both nodes )
4- yum install luci ( on 1 node )
5- yum groupinstall "high availability" ( on both nodes )
6- from browser, node1-pub:8084 ( login and create new cluster )
give cluster name, nodes name are (node1-pvt),(node2-pvt)
7- cluster is UP with two nodes, so far.
========================================================
Now:
8- configure failover domain and select both nodes.
9- configure resource(IP) and give IP in same range of public network.
10- configure servicegroup and assign the failover domain and the IP resource to the servicegroup.
11- IP doesn't start.
==========
Nov 24 02:59:37 rgmanager start on ip "10.10.4.223/255.255.255.0" returned 1 (generic error)
Nov 24 02:59:37 rgmanager #68: Failed to start service:vip; return value: 1
Nov 24 02:59:37 rgmanager Stopping service service:vip
Nov 24 02:59:37 rgmanager [ip] 10.10.4.223/255.255.255.0 is not configured
Nov 24 02:59:37 rgmanager Service service:vip is recovering
Nov 24 02:59:38 rgmanager #71: Relocating failed service service:vip
==========
from luci i get this error
Starting cluster "cluname" service "vip" from node "node1-pvt" failed: vip is in unknown state 118
what did i miss?
please help.
thanks
Comments
-
Any Clue Gents?0
-
Honestly I have not configured a cluster in nearly a decade so the current steps are lost on me, but my network engineering background tells me to check the communication if the services are stating that they are running correctly. Verify that neither of the firewall or host files are blocking communications then validate the network packet communication on both hosts with tcpdump to see if all packets are being properly received.0
-
I'm having the same problem -- cluster is configured exactly as you describe but I can't get the shared IP resource to start. Unknown State 118.
Did you ever figure this one out?karmellove wrote:Hello Experts,
Please help me with the exact steps on configuring two node cluster on RHEL 6.2,
I failed to configure the simplest cluster by below steps,
1- install RHEL 6.2 64-bit on both nodes
2- add to hosts file of each server ( 1 IP in local NW and another in IP private NW).
x.x.x.x node1-pub
z.z.z.z node2-pub
y.y.y.y node1-pvt
t.t.t.t node2-pvt
3- yum install ricci ( on both nodes )
4- yum install luci ( on 1 node )
5- yum groupinstall "high availability" ( on both nodes )
6- from browser, node1-pub:8084 ( login and create new cluster )
give cluster name, nodes name are (node1-pvt),(node2-pvt)
7- cluster is UP with two nodes, so far.
========================================================
Now:
8- configure failover domain and select both nodes.
9- configure resource(IP) and give IP in same range of public network.
10- configure servicegroup and assign the failover domain and the IP resource to the servicegroup.
11- IP doesn't start.
==========
Nov 24 02:59:37 rgmanager start on ip "10.10.4.223/255.255.255.0" returned 1 (generic error)
Nov 24 02:59:37 rgmanager #68: Failed to start service:vip; return value: 1
Nov 24 02:59:37 rgmanager Stopping service service:vip
Nov 24 02:59:37 rgmanager [ip] 10.10.4.223/255.255.255.0 is not configured
Nov 24 02:59:37 rgmanager Service service:vip is recovering
Nov 24 02:59:38 rgmanager #71: Relocating failed service service:vip
==========
from luci i get this error
Starting cluster "cluname" service "vip" from node "node1-pvt" failed: vip is in unknown state 118
what did i miss?
please help.
thanks0 -
Figured this one out... CLUSTAT showed that one of my cluster nodes was offline; the second node was attempting to recover the shared IP service, which was returning the Status Unknown 118 code because I had never gotten the service to work at this point.
The reason my shared IP service wasn't starting / recovering was that I had set the "Netmask Bits" to the full netmask: 255.255.255.0
Really, it was looking for the bits of the netmask -- in this case, 24.
After getting my first node back online and making this change to the netmask, my shared IP is working nicely.0 -
MAKE SURE THESE PKGS INSTALLED ON ALL THE NODES.
openssh-server.x86_64
openssh-clients.x86_64
NOTE:Do the following steps before Adding NODES to cluster.
1)use single nomenclature for passwordless login AND throughout the cluster configuration.
e.g. addressing nodes as node1.com and node2.com (FQDN)
2)Do bi-directional ssh passwordless login between all the nodes. (with using FQDN of opposite node) As follows;
[root@node1 ~]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
7c:72:ec:36:0f:15:46:b6:63:fd:78:97:fc:18:ee:05 [email protected]
The key's randomart image is:
+--[ RSA 2048]----+
| o |
| o o |
| * . |
| . . o o.o.|
| S + . Eo+|
| = . . =o|
| = o o|
| . + . . |
| . . |
+
+
[root@node1~]#ssh-copy-id -i /root/.ssh/id_rsa.pub node2.com
The authenticity of host 'node2.com (node2.com)' can't be established.
RSA key fingerprint is 88:ec:50:1a:a5:a1:63:08:be:7f:c8:73:cc:41:f5:2b.
Are you sure you want to continue connecting(yes/no)?yes
Warning: Permanently added 'node2.com' (RSA) to the list of known hosts.
[email protected]'s password:
Now try logging into the machine, with "ssh 'node2.com'", and check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
[root@node1 ~]#
3)PERFORM SIMILAR STEPS FROM node2.com for passwordless login on node1.com
4)make local /etc/hosts entries on both nodes
X.X.X.X node1.com node1
Y.Y.Y.Y node2.com node2
5)Add these nodes in the cluster as node1.com not as node1; same for the node2.com
regards,
nitiratna nikalje
MUMBAI, INDIA
0
Categories
- All Categories
- 51 LFX Mentorship
- 104 LFX Mentorship: Linux Kernel
- 576 Linux Foundation IT Professional Programs
- 304 Cloud Engineer IT Professional Program
- 125 Advanced Cloud Engineer IT Professional Program
- 53 DevOps Engineer IT Professional Program
- 61 Cloud Native Developer IT Professional Program
- 5 Express Training Courses
- 5 Express Courses - Discussion Forum
- 2K Training Courses
- 19 LFC110 Class Forum
- 7 LFC131 Class Forum
- 27 LFD102 Class Forum
- 157 LFD103 Class Forum
- 20 LFD121 Class Forum
- 1 LFD137 Class Forum
- 61 LFD201 Class Forum
- 1 LFD210 Class Forum
- LFD210-CN Class Forum
- 1 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum
- LFD237 Class Forum
- 23 LFD254 Class Forum
- 611 LFD259 Class Forum
- 105 LFD272 Class Forum
- 1 LFD272-JP クラス フォーラム
- 1 LFD273 Class Forum
- 2 LFS145 Class Forum
- 24 LFS200 Class Forum
- 739 LFS201 Class Forum
- 1 LFS201-JP クラス フォーラム
- 11 LFS203 Class Forum
- 75 LFS207 Class Forum
- 300 LFS211 Class Forum
- 54 LFS216 Class Forum
- 47 LFS241 Class Forum
- 41 LFS242 Class Forum
- 37 LFS243 Class Forum
- 11 LFS244 Class Forum
- 36 LFS250 Class Forum
- 1 LFS250-JP クラス フォーラム
- LFS251 Class Forum
- 140 LFS253 Class Forum
- LFS254 Class Forum
- 1.1K LFS258 Class Forum
- 10 LFS258-JP クラス フォーラム
- 93 LFS260 Class Forum
- 132 LFS261 Class Forum
- 33 LFS262 Class Forum
- 80 LFS263 Class Forum
- 15 LFS264 Class Forum
- 11 LFS266 Class Forum
- 18 LFS267 Class Forum
- 17 LFS268 Class Forum
- 23 LFS269 Class Forum
- 203 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- LFS274 Class Forum
- LFS281 Class Forum
- 235 LFW211 Class Forum
- 172 LFW212 Class Forum
- 7 SKF100 Class Forum
- SKF200 Class Forum
- 902 Hardware
- 219 Drivers
- 74 I/O Devices
- 44 Monitors
- 115 Multimedia
- 209 Networking
- 101 Printers & Scanners
- 85 Storage
- 763 Linux Distributions
- 88 Debian
- 66 Fedora
- 15 Linux Mint
- 13 Mageia
- 24 openSUSE
- 142 Red Hat Enterprise
- 33 Slackware
- 13 SUSE Enterprise
- 357 Ubuntu
- 479 Linux System Administration
- 41 Cloud Computing
- 70 Command Line/Scripting
- Github systems admin projects
- 95 Linux Security
- 78 Network Management
- 108 System Management
- 49 Web Management
- 68 Mobile Computing
- 23 Android
- 30 Development
- 1.2K New to Linux
- 1.1K Getting Started with Linux
- 537 Off Topic
- 131 Introductions
- 217 Small Talk
- 21 Study Material
- 826 Programming and Development
- 278 Kernel Development
- 514 Software Development
- 928 Software
- 260 Applications
- 184 Command Line
- 3 Compiling/Installing
- 76 Games
- 316 Installation
- 61 All In Program
- 61 All In Forum
Upcoming Training
-
August 20, 2018
Kubernetes Administration (LFS458)
-
August 20, 2018
Linux System Administration (LFS301)
-
August 27, 2018
Open Source Virtualization (LFS462)
-
August 27, 2018
Linux Kernel Debugging and Security (LFD440)