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Oracle Solaris Cluster Geographic Edition System Administration Guide     Oracle Solaris Cluster 4.1
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Document Information


1.  Introduction to Administering the Geographic Edition Software

2.  Before You Begin

3.  Administering the Geographic Edition Infrastructure

4.  Administering Access and Security

5.  Administering Cluster Partnerships

6.  Administering Heartbeats

7.  Administering Protection Groups

8.  Monitoring and Validating the Geographic Edition Software

9.  Customizing Switchover and Takeover Actions

10.  Script-Based Plug-Ins

A.  Standard Geographic Edition Properties

B.  Legal Names and Values of Geographic Edition Entities

C.  Disaster Recovery Administration Example

D.  Takeover Postconditions

E.  Troubleshooting Geographic Edition Software

Troubleshooting Monitoring and Logging

Configuring the Logger File to Avoid Too Many Traces

Configuring the Log File to Avoid Detailed Messages From the gcr Agent

Configuring the Log File to Avoid jmx Remote Traces

Troubleshooting Migration Problems

Resolving Problems With Application Resource Group Failover When Communication Lost With the Storage Device

Solution or Workaround

Troubleshooting Cluster Start and Restart

Validating Protection Groups in an Error State

Solution or Workaround

Restarting the Common Agent Container

Solution or Workaround

Matching the Nodelist Property of a Protection Group to Those of Its Device Group and Resource Group

Solution or Workaround

F.  Deployment Example: Replicating Data With MySQL

G.  Error Return Codes for Script-Based Plug-Ins


Troubleshooting Migration Problems

This section provides information about problems that you might encounter when services are migrated by using Geographic Edition software.

Resolving Problems With Application Resource Group Failover When Communication Lost With the Storage Device

When a loss of communication occurs between a node on which the application is online and the storage device, some application resource groups might not failover gracefully to the nodes from which the storage is accessible. The application resource group might result in a ERROR_STOP_FAILED state.

Solution or Workaround

The Oracle Solaris Cluster infrastructure does not initiate a switchover when I/O errors occur in a volume or its underlying devices. Because no switchover or failover occurs, the device service remains online on this node despite the fact that storage has been rendered inaccessible.

If this problem occurs, restart the application resource group on the correct nodes by using the standard Oracle Solaris Cluster procedures. Refer to Clearing the STOP_FAILED Error Flag on Resources in Oracle Solaris Cluster Data Services Planning and Administration Guide about recovering from the ERROR_STOP_FAILED state and restarting the application.

The Geographic Edition software detects state changes in the application resource group and displays the states in the output of the geoadm status command. For more information about using this command, see Monitoring the Runtime Status of the Geographic Edition Software.