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Oracle® TimesTen In-Memory Database Replication Guide
11g Release 2 (11.2.2)

Part Number E21635-07
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What's New

This preface summarizes the new features of Oracle TimesTen In-Memory Database release 11.2.2 that are documented in this guide. It provides links to more information.

New features in Release 11.2.2.5.0

  • When you use ALTER TABLE to add or drop columns, extraneous space or partitions could be added, which can hinder the performance of replication. If you are using relaxed replication, you can eliminate the extraneous space and partitions with ttMigrate -relaxedUpgrade. For details, see "Column definition options for replicated tables".

  • There is a new command, the -logAnalyze command, in the ttXactLog utility that analyzes the replication logs to measure how much is left to replicate from the active to a standby master and any subscribers and if the current configuration distributes the load appropriately across all manual and automatic tracks for parallel replication. For more details, see "Analyze outstanding transactions in the replication log".

New features in Release 11.2.2.4.0

  • You can now specify an alias or the IP address of the network interface when you want to use a specific local or remote network interface over which database duplication occurs. For details, see "Duplicating a database".

New features in Release 11.2.2.2.0

  • By default, replication is performed with a single thread. You can increase your performance by configuring parallel replication, which configures multiple threads for sending updates from the source database to the target database and for applying the updates on the target database.

    There are two types of parallel replication: automatic and user-defined. In this release, automatic parallel replication is introduced. For more information, see "Configuring parallel replication".

New features in Release 11.2.2.1.0

  • You have additional control over TimesTen application behavior when Oracle Clusterware is managing a TimesTen active standby pair. The AppFailureInterval, AppRestartAttempts, and AppUptimeThreshold Clusterware attributes are new. See "Implementing application failover".

New features in Release 11.2.2.0.0