Chapter 4. Cluster Administration
69
Cluster and service status includes the following information:
•
Cluster member system status
•
Service status and which cluster system is running the service or owns the service
The following tables describe how to analyze the status information shown by the
Cluster
Status Tool
and the
clustat
utility.
Member Status
Description
Member
The node is part of the cluster.
Note: A node can be a member of a cluster; however, the node
may be inactive and incapable of running services. For example,
if
rgmanager
is not running on the node, but all other cluster
software components are running in the node, the node appears as
a
Member
in the
Cluster Status Tool
. However, without
rgmanager
running, the node does not appear in the
clustat
display.
Dead
The member system is unable to participate as a cluster member.
The most basic cluster software is not running on the node.
Table 4-1. Member Status for the Cluster Status Tool
Member Status
Description
Online
The node is communicating with other nodes in the cluster.
Inactive
The node is unable to communicate with the other nodes in the
cluster. If the node is inactive,
clustat
does not display the
node. If
rgmanager
is not running in a node, the node is
inactive.
Note: Although a node is inactive, it may still appear as a
Member
in the
Cluster Status Tool
. However, if the node is
inactive, it is incapable of running services.
Table 4-2. Member Status for
clustat
Summary of Contents for Cluster Suite
Page 1: ...Red Hat Cluster Suite Configuring and Managing a Cluster ...
Page 5: ...Index 165 Colophon 171 ...
Page 6: ......
Page 14: ...viii Introduction ...
Page 16: ......
Page 24: ...8 Chapter 1 Red Hat Cluster Manager Overview ...
Page 92: ...76 Chapter 4 Cluster Administration ...
Page 98: ......
Page 130: ...114 Chapter 9 Setting Up a Red Hat Enterprise Linux LVS Cluster ...
Page 152: ...136 Chapter 10 Configuring the LVS Routers with Piranha Configuration Tool ...
Page 154: ......
Page 162: ...146 Appendix A Supplementary Hardware Information ...
Page 180: ...164 Appendix C Multipath usage txt File for Red Hat Enterprise Linux 4 Update 3 ...
Page 186: ......