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SharePlex 12.0 - Reference Guide

About this guide Conventions used in this guide SharePlex Commands for Oracle SharePlex parameters SharePlex Commands for PostgreSQL SharePlex Parameters for PostgreSQL Heterogenous compare-repair commands General SharePlex utilities Oracle Cloud Infrastructure SharePlex environment variables

list config

Use the list config command to view a list of all active and inactive configurations on a source system.

The command displays the following information:

  • File Name: The name of the configuration, the time and date that it was modified, and the size of the file.
  • State: Whether the configuration is active or inactive. Active means the configuration file is currently involved in replication. Inactive means the configuration is not currently involved in replication.
  • Datasource: The Oracle instance containing the objects being replicated by the configuration.
  • Internal Name: The name of the internal copy of the active configuration. This is the file that SharePlex actually replicates from. Its name is displayed under the State heading wherever there is an active configuration.

Usage

Supported sources: Oracle
Supported targets: All
Authorization level: Viewer (3)
Issued for: source system
Related commands: view config, show config

Syntax

Basic command Remote options
list config

[ on host |

on host:portnumber |

on login/password@host |

on login/password@host:portnumber ]

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.

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

list param

Use the list param command to display SharePlex tuning parameters. Without options, the command displays the basic (user configurable) parameters and their current settings.

Options are available for displaying:

  • All SharePlex parameters, including those that should not be changed by a SharePlex user (internal parameters).
  • Only the basic and internal parameters whose settings have been changed from their default values. (These settings are recorded in the SharePlex variable-data directory.)
  • Either of the preceding options filtered according to the SharePlex module.

Parameters are grouped by module, each module representing a functional component of the software. The following table lists the modules that contain user-configurable parameters (which can be changed without guidance from Quest).

SharePlex parameter modules

Module Naming convention Function controlled
analyze SP_ANL analyze config command
cap SP_CAP Non-Oracle Capture
capture SP_OCT or SP_CAP Capture process
compare SP_DEQ or SP_CMP compare commands
config SP_OCF configuration activation process
cop SP_COP sp_cop
copy SP_OSY or SP_CPY the copy/ append commands
export SP_XPT Export process
import SP_IMP Import process
logging SP_SLG the SNMP feature
post SP_OPO or SP_OPX Post process
queue SP_QUE the SharePlex queues
read SP_ORD Read process
SNMP SP_SNMP SNMP support
system SP_SYS system-related items

Each list param display provides the parameter’s:

  • Parameter Name
  • Actual Value: the parameter’s current setting and its default value, if different.

Note: Only up to 36 characters are displayed for this field.

  • Units: the parameter’s unit of measurement, such as seconds, kilobytes, or operations.
  • Set-At point: the point where the parameter becomes active when you issue the set param command, either immediately after the parameter is set, after the affected process is restarted, or after sp_cop is restarted.

Usage

Supported sources: Oracle
Supported targets: All
Authorization level: Viewer (3)
Issued for: source or target system
Related commands: set param, reset param

Syntax

Basic command Command options Remote options
list param

[basic | all | modified] [module]

[ on host |

on host:portnumber |

on login/password@host |

on login/password@host:portnumber ]

Syntax description
Component Description
basic

This option displays parameters that can be set by users without guidance from a Quest support engineer or technical specialist.

Example:

sp_ctrl(sysA)> list param basic

all

This option displays all of the SharePlex parameters, including basic (user-configurable) parameters and internal parameters (whose settings you should not change without guidance from Quest).

Example:

sp_ctrl(sysA)> list param all

modified

This option lists the user-configurable and internal parameters that have been modified from their default values.

Example:

sp_ctrl(sysA)> list param modified

module

This option constrains the output to parameters for a specific module. See SharePlex parameter modules.

This option, if used, must appear after the list param [all | modified] syntax.

Example:

sp_ctrl> list param all post

In this example, SharePlex displays all parameters for the Post process.

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.

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

lstatus

lstatus command

Use the lstatus command to view detailed information about the status of replication on a source or target system. This command is the most comprehensive information command in sp_ctrl. To view a brief status of replication, use the status command.

The lstatus command displays:

  • The status of the replication processes, including their associated queues.
  • The operating system process ID of each process.
  • When the process started.
  • The machine where the process is running.
  • The number of messages (SQL or SharePlex operations) in the queues and their age.
  • Whether the machine is a source or target system.
  • Events that took place since sp_cop started.
  • A list of active configurations.

The lstatus command also provides information about the queues, including:

  • Type: The kind of queue that it is (capture queue, export queue, post queue).
  • Queue name: The name of the queue, either a default name or the user-assigned name of a named queue.
  • # Messages: The number of messages in the queue. A message approximately corresponds to a SQL operation, but there can be multiple messages for one operation on a LONG or LOB column. Conversely, there could be one message for numerous operations in an array insert.
  • Size: The current size of the queue. This varies with the amount of data.
  • Age: The time difference between when the oldest and newest messages in the queue were written to that queue.
  • Oldest Msg Time: The date and time the oldest message entered the queue.
  • Newest Msg Time: The date and time the newest message entered the queue.

The lstatus command also provides other information, such as how the system is being used, its configuration activity, and errors that occurred.

Understanding the SharePlex queues

The following will help you understand the statistics for the SharePlex queues.

Queue size

Although SharePlex uses memory for the queues, the data is periodically written to disk as part of the checkpoint recovery system. The default size for SharePlex queue files is 8 MB. However, queue files are sparse files, meaning that from a system standpoint the file size is 8 MB, but the filesystem might only allocate part of the file for data written to the queues.

That is why the qstatus command can show a queue size of less than 8 MB, but what you see with qstatus is NOT the true indication of the actual file size. To predict disk space usage for the queue files, use the information from qstatus and not the filesystem.

Number of queues

It is normal for the capture and export queues to have fewer queue files than the post queue. Data that resides in one queue file on the source system is separated into multiple sub-queue files on the target system, each approximately corresponding to a user session on the source system.

Names of queues

Queue names are case-sensitive on all platforms. The following explains the naming conventions for SharePlex queues.

  • Default capture queues are identified by their datasource, which is expressed as o.SourceSID, for example o.ora64.
  • Default export queues are identified by the source system's name, for example SysA.
  • Default post queues are identified by the name of the source system appended with datasource-datadestination, where datasource is o.sourceSid and datadestination is o.targetSID, for example lajolla (o.ora10a-o.ora10b).
  • Named export and post queues are identified by their user-assigned names, not the default name. For more information about named queues, see the SharePlex Administration Guide.

Usage

Supported sources: Oracle
Supported targets: All
Authorization level: Viewer (3)
Issued for: source or target system
Related commands: qstatus, show, show statusdb, status

Syntax

Basic command Remote options
lstatus

[ on host |

on host:portnumber |

on login/password@host |

on login/password@host:portnumber ]

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.

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

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

Supported sources: Oracle
Supported targets: All
Authorization level: Operator (2)
Issues on: source system
Related commands: Add partition, Drop partition, Drop partition scheme, View Partitions

Syntax

Basic command Remote options

modify partition in scheme_name

set

keyword = value

[and keyword = value]

[...]

where

keyword = value

[and keyword = value]

[...]

Not available
Syntax description

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

Syntax Component Description
scheme_name The name of the partition scheme. Do not modify this component, or the row partition will shift to a new partition scheme.
keyword Any of the following syntax components except scheme_name.
condition

Column condition that defines a row partition. The condition and hash components are mutually exclusive.

hash Hash count that specifies the number of row partitions that SharePlex will create based on the rowid hash-based partition scheme. The hash and condition components are mutually exclusive.
route

The routing map for this partition.

tablename Fully qualified target table name.
name Short name of this partition.
description Description of this partition.
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

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