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SharePlex 11.4 - Administration Guide

About this Guide Conventions used in this guide Revision History Overview of SharePlex Run SharePlex Run multiple instances of SharePlex Execute commands in sp_ctrl Set SharePlex parameters Configure data replication Configure replication to and from a container database 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 Assign SharePlex users to security groups 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 Recover replication after Oracle failover 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

Set a default editor for sp_ctrl

You can set the default editor that sp_ctrl runs when you issue a command that requires input to an ASCII text file, such as a configuration file. By default, sp_ctrl runs vi on Unix and Linux.

The default text editors are tested and proven to work with SharePlex. If you change the default editor, the new editor must be a native ASCII text editor. Do not use a word processing program or other non-ASCII program, even if you can save a file to ASCII from that program.

Change the editor on Unix or Linux

Set the EDITOR variable in either of these ways:

  • Before you start sp_ctrl. This sets the editor only for that session of sp_ctrl.
  • In the shell startup script on the local machine. This sets the editor permanently, until changed in the startup script. You can override this setting on a per-session basis.
Syntax - ksh shell

export EDITOR=name_of_editor

Syntax - csh shell

setenv EDITOR name_of_editor

Command guidelines

Observe the following when issuing commands:

  • To issue commands for a machine, sp_cop must be running on that machine.
  • Enter the syntax exactly as shown in the command description in theSharePlex Reference Guide.
  • The maximum string length of a SharePlex command is 255 characters, including spaces. To work around this operating-system limitation, use the edit command.
  • Use the redo command to execute the previous command again without having to retype it. This command is useful when you are making frequent status checks with the information commands, for example using the qstatus command to monitor changes in queue volume.

  • To view descriptions and syntax for SharePlex commands from within the sp_ctrl interface, issue the help command. To view just the syntax for a command, issue the usage command.

  • Use the usage command to view the syntax for a SharePlex command. You can enter the entire command or just the first few keywords. For example, type usage compare to view syntax for both the compare using and compare commands.

  • Use the edit command to edit a previously issued command.
  • Use the authlevel command to determine your authorization level for issuing SharePlex commands on a system.

For more information, see About the SharePlex Security Groups.

Issue commands on a remote system

To issue a command that will affect a remote machine and to script commands that include a login name, password, port number, or combination of those items, use one of the [onhost] command options. These options are available for most commands.

The following table describes the command options for remote connection using the [onhost] options.

These options enable you to issue the command on a remote machine and to script commands that include a login name, password, port number, or combination of those items.

Option Description
on host

Execute the command on a remote system (one other than the one where the current sp_ctrl session is running). You are prompted for login credentials for the remote system. If used, must be the last component of the command syntax.

Example: sp_ctrl(sysB)>status on SysA

on host:portnumber

Execute the command on a remote system when a remote login and port number must be provided. If used, must be the last component of the command syntax.

Example: sp_ctrl(sysB)>status on SysA:8304

on login/password@host

Execute the command on a remote system when a remote login, password, and host name must be provided. If used, must be the last component of the command syntax.

Example:sp_ctrl(sysB)>status on john/spot5489@SysA

on login/password@host:portnumber

Execute the command on a remote system when a remote login, password, host name, and port number must be provided. If used, must be the last component of the command syntax.

Example: sp_ctrl(sysB)>status on john/spot5489@SysA:8304

Issue commands for a clustered system

Issue Commands for Clustered Systems

To issue sp_ctrl commands on clustered systems, use the name set with the SP_SYS_HOST_NAME parameter as the host in the [on host] options when connecting from a remote system, or set it as the default for sp_ctrl by using the host command. For more information about configuring SharePlex within a cluster, see the SharePlex Installation and Setup Guide.

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