This preface summarizes the new features of Oracle TimesTen In-Memory Database release 11.2.1 that are documented in this guide. It provides links to more information.
TimesTen now supports Oracle Clusterware release 11.2.0.2.x with TimesTen active standby pair replication, beginning with release 11.2.0.2.0. For more details, see "Hardware and software requirements".
You can create or drop a table, index or synonym in an active standby pair without stopping the replication agent. You can choose to have these statements replicated to the standby database. You can include a table in an active standby pair when the table is created. See "Making DDL changes in an active standby pair".
You can add or drop a cache group while the active database is attached to a grid. See "Making schema changes to active standby pairs in a grid".
You can perform an online rolling in-place upgrade for TimesTen from release 11.2.1.6.6 to release 11.2.1.7.1 or later when using Oracle Clusterware 11.1.0.7. See Chapter 9, "Upgrading TimesTen When Using Oracle Clusterware".
Use Oracle Clusterware with a cache grid. See "Including the active standby pair in a cache grid" and "GridPort".
If your application has predictable transactional dependencies and does not require the commit order on the target database be the same as the order on the source database, then you can increase replication throughput by configuring parallel replication. See "Increasing replication throughput for other replication schemes".
Add or remove spare hosts using the following ttCWAdmin options: -addMasterHosts, -delMasterHosts, -addSubscriberHosts, -delMasterHosts. See "Adding a host to the cluster" and "Removing a host from the cluster".
This section summarizes new features in Release 11.2.1.4.0 that are documented in this guide.
You can use the -switch and -relocate options of the ttCWAdmin utility to change the configuration of a cluster. See "Reversing the roles of the master databases" and "Moving a database to a different host".
Use the -ocrConfig option of ttCWAdmin to register a TimesTen cluster with the Oracle Cluster Registry. See "Register the TimesTen cluster information".
From a subscriber database, you can verify that the subscriber has received all updates from the master database. See "Verifying that a subscriber has received and applied all updates".
This section summarizes new features in Release 11.2.1.1.0 that are documented in this guide.
TimesTen integrates with Oracle Clusterware to manage failure recovery for active standby replication schemes. See Chapter 7, "Using Oracle Clusterware to Manage Active Standby Pairs" and Chapter 8, "TimesTen Configuration Attributes for Oracle Clusterware".
You can replicate tables that have columns in different positions or tables that have a different number of partitions. See "Replicating tables with different definitions".
VARCHAR2, NVARCHAR2, VARBINARY and TT_VARCHAR columns in replicated tables can have a size of 4 megabytes. See "Table requirements and restrictions for replication schemes".
You can configure increased throughput for active standby pairs. See "Increasing replication throughput for active standby pairs".