Help Fix Cman Not Found Error

Posted on October 8, 2021 by Randolph Nuno

Table of Contents

Here are some simple steps that can help you fix the cman not found problem.

Problem

Nodes will not join the cluster.
When I start to group my nodes, not all nodes will join.
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Cman cannot run mine on cluster nodes:

  # start active cman serviceStarting cluster:   Modules are loading ... done   mount configfs ... done   run ccsd ... done   Cman started ... failedcman doesn't work anymore. Unable to start: find the fully qualified hostname of the local host; in cluster.conf/ usr / sbin / cman_tool: start the aisexec daemon

Environment

Red Hat Enterprise Linux 5 Enhanced Platform (Clustering)
- Kernels older than 2.6.18-164.el5 are almost affected by a bug that has been fixed in the typo list: RHSA-2009: 1341.
Red Hat Enterprise Linux Server 6 (with high availability add-on)

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Hello
I want to configure second node clustering in RHEL-5. But then after all the settings are done (via system-config-cluster), every time I try to start the cman service, I get a tracking error.

Startup cluster:
Modules loaded … completed
Configuration provided … completed
CCSd started … completed
Cman started … failed
unbuilt cman: The local node name could not be found in the cluster. conf / usr / sbin / cman_tool: the aisexec daemon cannot be started in the Bunch framework after 9990 seconds. Feb 20 16:56:18 demo4 openais [23496]: [MAIN] AIS Executive Service RELEASE ‘subrev 1358 choice 0.80.3’
Feb 20 16:56:18 demo4 openais [23496]: [MAIN Credits rights] (C) 2002-2006. MontaVista Software, Inc. and contributors.
February 20 Demo4 16: 56:18 Openais [23496]: [HOME] Copyright (C) 2006 Red Hat, Inc. de Fe b 20 16:56:18 Demo4 Openais [23496]: [MAIN] Executive AI Service: took the first step and is ready to provide the service.
21. 16:56:18 demo4 openais [23496]:] [Home master node name “demo4” not found in cluster.conf
20. Feb 16: 56:18 demo4 openais [23496]: [MAIN error] when reading CCS information, difficulty since Feb 20 16:56:18 demo4 openais [23496]: [MAIN]
20 Feb 16: 56:18 demo4 openais [23496]: [MAIN] AIS Executive has ended (-9).
February around 16:56:19 demo4 ccsd [3261] cannot be activated: after 10020 seconds the cluster can – the infrastructure will be turned on.
Feb 23 16:56:49 demo4 Unable to ccsd [3261]: really connect to the cluster infrastructure after 10050 seconds.

Please help me to solve the following problem …. …..

from

postvirus like ahire
Hello
I want to set up multiple clusters of nodes in RHEL-5. but all
configurations immediately after shutdown (via system-config-cluster), when I try to start the cman service, I get the following error.
* Starting cluster: *
* Loading modules … completed *
* Attach configfs … completed *
* CCsd started … completed *
* cman started … failed *
* cman not started: unable to look up local hostnames in cluster.conf
/ usr / sbin / cman_tool: aisexec daemon was not started *
/ var / log / messages are being monitored.
* Feb 16:55:49 20 demo4 ccsd [3261]: After 9990 time, no connection to cluster infrastructure can be established. *
* February 20 Demo4 16:56:18 openais [23496]: [MAIN] AIS Executive Service
RELEASE ‘subrev 1358 kind 0.80.3’ *
* February 20 Demo4 16:56:18 openais [23496]: [HOME] Copyright (C) 2002-2006 MontaVista Software, Inc and its contributors … *
* Feb 16:56:18 21 demo4 openais [23496]: [MAIN] Copyright (C) 2006 Red Hat, Inc. * The company also began to prepare for work. *
* 25. Feb, 16:56:18 demo4 [MAIN openais [23496]:] Hostname for city “demo4”
not found in cluster.conf *
* Feb 16:56:18 20 demo4 openais [23496]: [MAIN] Error reading CCS information,
cannot be started *
* Feb, 16:56:18 20 demo4 openais [23496]: [MAIN] *
* Feb , 16:56:18 20 demo4 openais [23496]: [MAIN] AIS Executive escapes (-9). *
* 20. February 16:56:19 demo4 ccsd [3261]: Unable to connect to cluster infrastructure after 10020 seconds. *
* 20. 16:56:49 demo4 ccsd [3261]: Connection to cluster infrastructure is not possible after 10050 seconds. *
Please help me to solve this problem ………… Le

Make sure your node’s web hosting provider name is the same as cluster.conf.
It is important that most of the hostnames can be encountered (for example, this will resolve
the appropriate system interface assigned.