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;
[[email protected] ~]# 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|
| . + . . |
| . . |
+
+
[[email protected]~]#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.
[[email protected] ~]#
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
- 8.8K All Categories
- 13 LFX Mentorship
- 66 LFX Mentorship: Linux Kernel
- 355 Linux Foundation Boot Camps
- 228 Cloud Engineer Boot Camp
- 67 Advanced Cloud Engineer Boot Camp
- 23 DevOps Engineer Boot Camp
- 4 Cloud Native Developer Boot Camp
- 743 Training Courses
- 14 LFC110 Class Forum
- 16 LFD102 Class Forum
- 96 LFD103 Class Forum
- 2 LFD121 Class Forum
- 55 LFD201 Class Forum
- 1 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum
- 14 LFD254 Class Forum
- 425 LFD259 Class Forum
- 78 LFD272 Class Forum
- 1 LFD272-JP クラス フォーラム
- 15 LFS200 Class Forum
- 686 LFS201 Class Forum
- LFS201-JP クラス フォーラム
- 271 LFS211 Class Forum
- 50 LFS216 Class Forum
- 23 LFS241 Class Forum
- 26 LFS242 Class Forum
- 18 LFS243 Class Forum
- 4 LFS244 Class Forum
- 7 LFS250 Class Forum
- LFS250-JP クラス フォーラム
- 105 LFS253 Class Forum
- 758 LFS258 Class Forum
- 7 LFS258-JP クラス フォーラム
- 48 LFS260 Class Forum
- 75 LFS261 Class Forum
- 6 LFS262 Class Forum
- 76 LFS263 Class Forum
- 14 LFS264 Class Forum
- 10 LFS266 Class Forum
- 8 LFS267 Class Forum
- 9 LFS268 Class Forum
- 5 LFS269 Class Forum
- 173 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- 184 LFW211 Class Forum
- 100 LFW212 Class Forum
- 876 Hardware
- 205 Drivers
- 74 I/O Devices
- 43 Monitors
- 115 Multimedia
- 204 Networking
- 98 Printers & Scanners
- 82 Storage
- 716 Linux Distributions
- 78 Debian
- 64 Fedora
- 12 Linux Mint
- 13 Mageia
- 22 openSUSE
- 125 Red Hat Enterprise
- 33 Slackware
- 13 SUSE Enterprise
- 344 Ubuntu
- 445 Linux System Administration
- 33 Cloud Computing
- 63 Command Line/Scripting
- Github systems admin projects
- 88 Linux Security
- 73 Network Management
- 105 System Management
- 45 Web Management
- 50 Mobile Computing
- 18 Android
- 19 Development
- 1.2K New to Linux
- 1.1K Getting Started with Linux
- 499 Off Topic
- 119 Introductions
- 193 Small Talk
- 19 Study Material
- 743 Programming and Development
- 237 Kernel Development
- 472 Software Development
- 899 Software
- 245 Applications
- 178 Command Line
- 2 Compiling/Installing
- 72 Games
- 313 Installation
- 19 All In Program
- 19 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)