SharePlex 9.2.6 - Reference Guide

modify partition

Use the modify partition command to modify a row partition of a partition scheme in a horizontally partitioned replication configuration.

Reactivate the configuration file if the command affects a table that is already being replicated. SharePlex will only lock tables for which there are configuration changes.

For more information about how to configure horizontally partitioned replication, see the SharePlex Administration Guide.

Usage

Syntax

Syntax Description

Note: See add partition for additional descriptions of these options.

Examples

sp_ctrl> modify partition in scheme1 set condition = "C1 > 400" and route = sysc:q1@o.orasid where name = q1

sp_ctrl> modify partition in scheme1 set condition = "C1 > 400" where condition = "C1 > 300"

sp_ctrl> modify partition in scheme1 set hash = 5 where hash = 4

orainfo

Use the orainfo command to view Oracle database information including the SID. The following is an example of the display:

The following will be displayed if a database account was not created for SharePlex or the statusdb was deleted, or if the command is executed from a version of SharePlex that does not support it.

Usage

Syntax

Remote 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.

port

Use the port command to connect from sp_ctrl to an instance of sp_cop that is running on a TCP/IP port number other than the default. The default port number for sp_cop is either 2100 (the default port when SharePlex was installed) or a user-defined port that was set with the SP_COP_TPORT and SP_COP_UPORT parameters.

All commands issued during the current session of sp_ctrl will affect the sp_cop running on the specified port until the sp_ctrl session is terminated. A new session of sp_ctrl connects to the default port number or the user-defined port, if one was defined for the instance of SharePlex.

When to use the port command

When you are running one instance of sp_cop, using the port command is unnecessary. On startup, sp_ctrl determines the port number by first checking for a user-defined port and, if none exists, defaulting to port 2100.

Use the port command when you are running multiple instances of sp_cop on dedicated ports (such as in consolidated replication) and default ports for them were not set with the SP_COP_TPORT and SP_COP_UPORT parameters. To issue commands for multiple sp_cop instances, open a session of sp_ctrl for each one, and use the port command to set a port for each session.

SharePlex notifies you as follows if the port command is required when you start sp_ctrl:

The warning indicates that sp_cop is not running or that it is running on a different port than the default.

The port command cannot be issued from a remote machine, so there are no [on host] options.

Usage

Syntax

Syntax description

purge config

Use the purge config command to remove the data from all queues associated with a configuration without removing the queues themselves or deactivating the configuration. Avoiding a deactivation avoids the need for SharePlex to recalculate the configuration data. This saves time when the tables are large and numerous, enabling replication can start sooner.

Issue the purge config command on the source system to affect the source system and all target systems in the configured routes. Should any SharePlex process stop prior to or during the purge config activity, the command also stops working. When the process starts again, the command resumes working. Thus, purge config works even when the network is temporarily unavailable — the command remains in the queues until the connection is restored.

Cautions for using the purge config command

• Do not activate a configuration and then follow the activate config command with a purge config command. You might be purging more than just queued data, including the configuration information that controls replication, thus rendering the activation invalid.
• When there are multiple active configurations on the same source system, use the purge config command only if there are named export queues that separate the replication streams for each one. Without named export queues, SharePlex funnels all replicated data through one export queue, and a purge config command for one configuration deletes the data for all of them. To create named queues, see Chapter 5 of the SharePlex Administrator’s Guide.

Usage

Syntax

Syntax description

Remote 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.