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Clusters: Monitoring: Failover

Column Display     Configuration Options     Related Tasks     Related Topics

This page displays failover information and status for the current cluster.

The top section of this page displays information about the communications between the current cluster and the remote cluster.

Server Failover Status allows you to monitor the failover status of each server within the current cluster.

Configuration Options

Name	Description
Total primary sessions	Provides the number of object that the local server hosts as primaries. Answer the number of object that the local server hosts as primaries. MBean Attribute: ReplicationRuntimeMBean.PrimaryCount
Total session replicas	Answer the number of object that the local server hosts as secondaries. MBean Attribute: ReplicationRuntimeMBean.SecondaryCount
Total number of session updates to the backup cluster	MBean Attribute: ClusterMBean.NumberOfSessionsFlushedToTheDatabase Changes take effect after you redeploy the module or restart the server.
Total number of sessions retrieved from the database	MBean Attribute: ClusterMBean.NumberOfSessionsRetrievedFromTheDatabase Changes take effect after you redeploy the module or restart the server.
Communications between clusters is currently	MBean Attribute: ClusterMBean.RemoteClusterReachable Changes take effect after you redeploy the module or restart the server.

Column Display

You can show fewer or additional data points on this page by expanding Customize this table and modifying the Column Display list. Each data point displays in its own table column.

The following table lists all of the data points that you can display in columns on this page.

Name	Description
Server	The name that you specified when you created the server.
Machine	The WebLogic Server host computer (machine) on which this server is meant to run. If you want to use a Node Manager to start this server, assign the server to a machine and configure the machine for the Node Manager. You cannot change this value if a server instance is already running. MBean Attribute: ServerMBean.Machine Changes take effect after you redeploy the module or restart the server.
Type	The type of replication manager.
State	The server state.
Backup Server	MBean Attribute: ReplicationRuntimeMBean.SecondaryServerDetails
Primary Sessions	Provides the number of object that the local server hosts as primaries. Answer the number of object that the local server hosts as primaries. MBean Attribute: ReplicationRuntimeMBean.PrimaryCount
Session Replicas	Answer the number of object that the local server hosts as secondaries. MBean Attribute: ReplicationRuntimeMBean.SecondaryCount
Remote Servers	Provides the names of the remote servers (such as myserver) for which the local server is hosting secondary objects. The name is appended with a number to indicate the number of secondaries hosted on behalf of that server. MBean Attribute: ReplicationRuntimeMBean.DetailedSecondariesDistribution
Sessions Flushed	MBean Attribute: ReplicationRuntimeMBean.NumberOfSessionsFlushedToTheDatabase
Sessions Retrieved	MBean Attribute: ReplicationRuntimeMBean.NumberOfSessionsRetrievedFromTheDatabase
Remote Reachable	MBean Attribute: ReplicationRuntimeMBean.RemoteClusterReachable
Sessions Waiting	MBean Attribute: ReplicationRuntimeMBean.SessionsWaitingForFlushCount
Last Flush	MBean Attribute: ReplicationRuntimeMBean.LastSessionsFlushTime
Active Remote Servers	MBean Attribute: ReplicationRuntimeMBean.ActiveServersInRemoteCluster

Related Tasks

• Configure server migration in a cluster

• Configure cross-cluster replication

• Configure health monitoring in a cluster

Related Topics

• Understanding Server Life Cycle

• Avoiding and Recovering from Server Failure

• Avoiding and Managing Overload