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SharePlex 10.2.1 - Administration Guide

About this Guide Conventions used in this guide Overview of SharePlex Run SharePlex Run multiple instances of SharePlex Execute commands in sp_ctrl Set SharePlex parameters Configure data replication Configure named queues Configure partitioned replication Configure replication to a change history target Configure a replication strategy Configure DDL replication Configure error handling Configure data transformation Configure security features Start replication on your production systems Monitor SharePlex Prevent and solve replication problems Repair out-of-sync data Tune the Capture process Tune the Post process Make changes to an active replication environment Apply an Oracle application patch or upgrade Back up Oracle data on the source or target Troubleshooting Tips Appendix A: Peer-To-Peer Diagram Appendix B: SharePlex environment variables

Appendix A: Peer-To-Peer Diagram

This diagram visually explains the concept of peer-to-peer replication. For more information, see Configure peer-to-peer replication.

Appendix B: SharePlex environment variables

SharePlex uses the following environment variables, which you may need to set in certain situations. Usually you must perform additional steps before or after setting a variable, so refer to the recommended instructions before setting a SharePlex variable.

Environment Variable Description
EDITOR Sets the default ASCII text editor for sp_ctrl commands that use one, for example the create config command.
HOST Sets a host name for all locally run sessions of sp_ctrl.
SP_COP_TPORT

Sets a non-default port number for an instance of SharePlex. The default port number is 2100. You may need to set a different port number if one of the following is true:

  • You are setting up additional instances of sp_cop.
  • A different port number than 2100 must be used.
SP_SYS_HOST_NAME

Sets the host name that SharePlex binds to during configuration activation. This variable is used for the following:

  • Sets the virtual IP address (also known as the global cluster package name) on a clustered system, such as Oracle RAC. This variable must be set on all cluster nodes.
  • In the case where there are multiple network cards on Windows, it must be set to the network card or IP address that you want SharePlex to use as the local host. Otherwise, if the server reboots after the SharePlex configuration is activated, the IP address may bind to a different network card from the one that is bound in the replication configuration.

  • If SP_SYS_HOST_NAME is set to an IPV6 address on the source system, SharePlex on the target system must be version 9.0 or later.

SP_SYS_VARDIR Sets the full path to the SharePlex variable-data directory so that sp_cop can locate the configuration data, queues, logs and other information. If there is only one instance of sp_cop on the local system, this variable is set by default*. If there are multiple instances of sp_cop on the local system, always set this variable to point to the correct variable-data directory of an instance before setting any other SharePlex variables for that instance.
SP_SYS_SECURE_MODE

Suppresses the output of the compare and repair SQL log file for all compare and repair runs while the current instance of SharePlex is running. This variable must be set before starting SharePlex, so if the sp_cop process is running it must be restarted after setting this variable. When sp_cop is run with this environment variable, the compare and repair commands will not put data into SQL files and the Post process will not put data into the SharePlex error log.

On Windows, it is set in the Windows Registry.

To set an environment variable on Windows

Set the environment variable by adding it to the SharePlex node of the Windows Registry.

Important! Incorrect Registry settings can adversely affect the operation of SharePlex. Consult a System Administrator if you need help with this procedure.

  1. Shut down the SharePlex service.
  2. Open the Run dialog. The location varies with the Windows version.
  3. In the Run dialog, type regedit to run the Registry Editor.
  4. Expand the SharePlex node:

    \HKEY_LOCAL_MACHINE\Software\Wow6432node\Quest Software\SharePlex

  5. Right click the port number of the SharePlex instance to which you want to add a variable, then select New, then String Value.
  6. Under the Name column, right click the new variable, then select Rename.
  7. Type the correct name.
  8. Double click the new variable.
  9. Under Value Data, enter the string for the new variable and then click OK.
  10. Exit the Registry.

 

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