Tag Archives: Gbase

[Solved] GBase 8a V95 Replace Node Error: single vc mode does not support ‘–freenode’

The v95 version of gbase 8A supports fast replacement of failed nodes through free nodes (omitting the need to find the installation package and check the installation and configuration process). However, free node is only for the scene with VC enabled. For single VC, that is, the mode compatible with V8 version, free node is not supported, so it does not support this node replacement method. The solution is to use a new node.

Error message
version: 9.5.3.22

install prefix: /opt/gbase/10.0.2.103
execute replace node os user: gbase
replaced nodes: ['10.0.2.104']
freenode: ['10.0.2.106']
Error: replace.py(line 1147) -- single vc mode does not support '--freenode'
[gbase@gbase_rh7_003 gcinstall]$

Reason
the cluster is in single VC mode, compatible with V8, and does not support freenode. Look at the bottom of the gcadmin output. There is really no freenode information.

[gbase@gbase_rh7_003 gcinstall]$ gcadmin
CLUSTER STATE:         ACTIVE
VIRTUAL CLUSTER MODE:  NORMAL

====================================
| GBASE GCWARE CLUSTER INFORMATION |
====================================
| NodeName |  IpAddress   | gcware |
------------------------------------
| gcware1  |  10.0.2.103  |  OPEN  |
------------------------------------
====================================================
|      GBASE COORDINATOR CLUSTER INFORMATION       |
====================================================
|   NodeName   | IpAddress  | gcluster | DataState |
----------------------------------------------------
| coordinator1 | 10.0.2.103 |   OPEN   |     0     |
----------------------------------------------------
=========================================================================================================
|                                    GBASE DATA CLUSTER INFORMATION                                     |
=========================================================================================================
| NodeName |                IpAddress                 | DistributionId | gnode | syncserver | DataState |
---------------------------------------------------------------------------------------------------------
|  node1   |                10.0.2.103                |       1        | OPEN  |    OPEN    |     0     |
---------------------------------------------------------------------------------------------------------
|  node2   |                10.0.2.104                |       1        | OPEN  |    OPEN    |     0     |
---------------------------------------------------------------------------------------------------------
|  node3   |                10.0.2.105                |       1        | OPEN  |    OPEN    |     0     |
---------------------------------------------------------------------------------------------------------
|  node4   |                10.0.2.106                |                | OPEN  |    OPEN    |     0     |
---------------------------------------------------------------------------------------------------------

[gbase@gbase_rh7_003 gcinstall]$

Solution
adopt the scheme of new machines and replace nodes on the original IP.

[Solved] Gbase Install Error: service cgconfig is not exist on hosts

Gbase8a install Error:

Environmental Checking on gcluster nodes.
Cgconfig service is not exist on host [‘192.168.48.18’, ‘192.168.48.19’, ‘192.168.48.20’], resource manangement can not be used, continue ([Y,y]/[N,n])?

Check whether the following installation packages are installed, if they are missing, please install

yum list installed | grep libcgroup
yum list installed | grep libcgroup-tools

Install if missing

yum -y install libcgroup
yum -y install libcgroup-tools

Set CGroup service startup after installation

systemctl enable cgconfig.service

Start cgconfig service

systemctl start cgconfig.service

Here if the execution reports an error.

Job for cgconfig.service failed because the control process exited with error code. See “systemctl status cgconfig.service” and “journalctl -xe” for details.

Then use the command to check the cause of the error

systemctl status cgconfig.service

If the reasons are as follows.

Error: cannot mount cpu to /cgroup/cpu: Device or resource busy
or
Failed to start Control Group configuration service.

then execute

cgclear - unload the cgroup filesystem
systemctl start cgconfig.service

Then restart the installer.