IBM InfoSphere Replication Server and Data Event Publisher

Table of Contents

• Preface

• Chapter 1: Q Replication Overview
  • Why do we want to replicate data
    • Overview of what is available today
      • The different replication options
    • Replication toolset
      • The Replication Center GUI
      • The ASNCLP command interface
  • Q replication constituent components
  • The different types of Q replication
    • Unidirectional replication
    • Replicating to a stored procedure
    • Bidirectional replication
    • Peer-to-peer replication
    • Tree replication
    • Replicating to a Consistent Change Data table
    • Event Publishing
  • DB2 replication sources
    • Replicating XML data types
    • Replicating compressed tables
    • Replicating large objects
    • Other DB2 objects
  • Q replication filtering and transformations
    • Filtering rows/columns
    • Before and After SQL—alternatives
    • Stored procedure processing
  • Q replication conflict detection
    • What is conflict detection?
    • When do conflicts occur?
  • Q replication and HADR
  • Q replication in a DPF environment
    • Tables with referential integrity
    • Table load and insert considerations
  • Summary

• Chapter 2: Q Replication Components
  • The DB2 database layer
    • Database/table/column name compatibility
  • The WebSphere MQ layer
  • The Q replication layer
    • What is a logical table?
    • What is a Replication/Publication Queue Map?
    • What is a Q subscription?
    • What is a subscription group?
    • Q subscription activation
  • The relationship between the components
  • The Q Capture and Q Apply programs
    • Q Capture internals
    • Q Apply internals
    • How do Q Capture and Q Apply communicate?
  • Summary

• Chapter 3: The DB2 Database Layer
  • Database creation
  • The control tables
    • The Q Capture control tables
    • The Q Apply control tables
    • The Replication Alert Monitor control tables
  • Where do the control tables go
    • DB2 to DB2 replication
    • DB2 to non-DB2 replication
    • Non-DB2 to DB2 replication
  • How are the Q replication control tables populated
  • Pruning of the control tables
  • The IBMQREP_SIGNAL control table
    • Sending signals using the IBMQREP_SIGNAL table
      • Sending signals using an INSERT statement
      • Sending signals using ASNCLP
      • Using a signal to determine where Q Capture is up to
      • Restricting access to IBMQREP_SIGNAL
  • Summary

• Chapter 4: WebSphere MQ for the DBA
  • An introduction to MQ
  • MQ queues
    • MQ queue naming standards
    • MQ queues required for different scenarios
  • WebSphere MQ commands
  • Create/start/stop a Queue Manager
    • Starting a Queue Manager
    • Checking that the Queue Manager is running
    • Stopping a Queue Manager
    • Deleting a Queue Manager
    • The Queue Manager configuration file
    • MQ logging
  • Issuing commands to a Queue Manager (runmqsc)
    • Displaying the attributes of a Queue Manager
    • Changing the attributes of a Queue Manager
  • MQ Listener management
    • Defining/Starting an MQ Listener
    • Displaying an MQ Listener
    • Stopping an MQ Listener
  • MQ Channel management
    • To define a Channel
    • To start a Channel
    • To display a list of Channels
    • To display the status of a Channel
    • To stop a Channel
  • MQ Queue management
    • To define a Local Queue
    • To display the attributes of a Local Queue
    • To alter the attributes of a Queue
    • To empty a Local Queue
    • To delete a Local Queue
    • To define a Remote Queue
    • To define a Model Queue
    • To define a Transmission Queue
    • To list Queues
  • WebSphere MQ sample programs—server
    • To put a message onto a Queue (amqsput)
    • To retrieve a message from a Queue (amqsget)
    • To browse a message on a Queue
  • WebSphere MQ sample programs—client
  • Dead Letter Queue handler (runmqdlq)
  • WebSphere MQ message format
  • MQ error messages
  • Summary

• Chapter 5: The ASNCLP Command Interface
  • The ASNCLP environment
  • The ASNCLP commands
    • Setting up the administration environment
    • Setting the environment session
    • Comments in an ASNCLP script
    • Possible header lines in a script
  • Common Q replication tasks
    • Creating or dropping Q Capture control tables on DB2A
    • Creating or dropping Q Apply control tables on DB2B
    • Creating Q Capture and Q Apply control tables in the same database
    • Queue Map maintenance
      • Creating a Replication Queue Map
      • Creating a Publication Queue Map
      • Dropping a Queue Map
      • Altering a Replication Queue Map
    • Creating Q subscriptions and Publications
      • Q subscription for unidirectional replication
      • Q subscription for bidirectional replication
      • Q subscription for P2P two-way replication
      • Q subscription for P2P three-way replication
      • Publication for Event Publishing
    • Q subscription maintenance
      • Checking the state of a Q subscription
      • Stopping a Q subscription
      • Dropping a Q subscription
      • Altering a Q subscription
      • Starting a Q subscription
      • Sending a signal using ASNCLP
    • Validating the WebSphere MQ environment
      • Validating WSMQ for the Capture schema
      • Validating WSMQ for the Apply schema
      • Validating a Replication Queue Map
      • Validating a Publication Queue Map
      • Validating a Q subscription
      • Validation error messages
  • Summary

• Chapter 6: Administration Tasks
  • Defining the MQ queues
  • Create/drop the Q replication control tables
    • Create/drop the Q Capture control tables
    • Create/drop the Q Apply control tables
  • Registering a table for Q replication
  • Managing Queue Maps
    • Creating a Queue Map
    • Altering a Replication Queue Map
    • Drop/delete a Queue Map
    • Listing the RQM for a Receive Queue
  • Q subscription maintenance
    • Creating a Q subscription
    • Altering a Q subscription
    • Dropping a Q subscription
    • Reinitializing a Q subscription
    • Checking the status of a Q subscription
    • Stopping a Q subscription
    • Determining when a Q subscription became inactive
    • Listing the attributes of a Q subscription
    • Listing all Q subscriptions using a RQM
    • Specifying a table as the initial load source
  • Source table maintenance
    • Adding a column to a Q subscription
    • Removing a column from a replicated source table
    • Altering the column attributes of a replicated source table
    • Performing a reorganization on the source table
    • Collecting statistics on the source table
    • Performing a load on the source table
    • Importing data into the source table
  • Adding a new source table to Q replication
  • Stop replicating (remove) a table
  • Administrative commands/tasks
  • Viewing messages using asnqmfmt
    • Retrieving Q Capture Restart Queue information
  • Q Capture and Q Apply administration
  • Q Capture administration
    • Starting Q Capture
    • Stopping Q Capture
    • Querying the status of Q Capture
    • Altering a running Q Capture
    • Starting Q Capture from a point in the DB2 log
    • Starting Q Capture without triggering a load
    • Taking a Q Capture trace (asntrc)
  • Q Apply administration
    • Starting Q Apply
    • Stopping Q Apply
    • Querying the status of Q Apply
    • Starting a Receive Queue
  • The password file
  • Copying (promoting) Q replication environments
    • The ASNCLP PROMOTE procedure
  • Summary

• Chapter 7: Monitoring and Reporting
  • The database layer
  • The WebSphere MQ layer
    • Checking that the Queue Managers are running
    • Checking the state of the Listeners
    • Checking the state of the Channels
    • Checking the state of the Receive Queue
    • Checking that the Q subscription is active
  • The Q replication layer
    • Monitoring Q Capture start up
    • Monitoring Q Apply start up
    • Checking that Q Capture and Q Apply are active
    • Checking the Q Capture and Q Apply log files
    • Checking the APPLYTRACE and CAPTRACE tables
    • How far is Q Capture behind the DB2 log
    • How far is Q Apply behind Q Capture
    • Listing Q subscription status
    • Listing Receive Queue status
    • Table synchronization
    • The different latencies
    • The base monitor tables
      • The Q Capture tables
      • The Q Apply tables
    • Collection of data for historical analysis
    • Historical monitoring of Q Capture
    • Historical monitoring of Q Apply
    • To determine the row throughput
  • Manual monitoring
  • Monitoring using the Replication Alert Monitor
    • Q Capture alert conditions
    • Q Apply alert conditions
    • Creating the RAM control tables
    • Setting up e-mail notification
    • Monitoring Q Capture
    • Monitoring Q Apply
    • Starting the Replication Alert Monitor
    • Monitor management
    • Checking which monitors are active
    • Changing or reinitializing a monitor
    • Stopping a monitor
    • Suspending or resuming a monitor
    • The ibmsnap_alerts table
  • Other tools available to monitor Q replication
    • The database layer
      • Optim Data Studio
      • The DB2 Health Center
    • The WebSphere MQ layer
      • The WebSphere MQ Explorer
      • The WebSphere MQSC interface (runmqsc)
      • The rfhutil utility
    • The Q replication layer
      • The Replication Dashboard
      • Tivoli Monitoring
  • The asnqanalyze command
  • Some what happens if … scenarios
    • If MQ is stopped on each server
    • If the Receive Queue is stopped
    • If Q Apply is not running
    • If the Q Apply Queue Manager is not running
    • If the Receive Queue fills up
    • If the Q Apply Dead Letter Queue fills up
    • If a Dead Letter Queue has not been defined
    • What happens if—summary diagram
  • Q replication performance considerations
    • The DB2 database layer
    • The WebSphere MQ layer
    • Q Capture
    • Q Apply
  • Some error messages
    • Q Capture: ASN0569E on starting
    • Q Capture: ASN7094E
    • Q Apply: hangs when starting
  • How to handle an ASN7551E message
    • Q Apply: ASN7094E
    • Q Apply: ASN7505E
  • Summary

• Index

Pav Kumar-Chatterjee

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