What's New in This Guide

New and significant changes in Administering Oracle Coherence.

This preface includes the following sections:

• New and Changed Features
  New and changed features in Administering Oracle Coherence that are organized by release.
• Other Significant Changes in This Document
  Other significant changes in Administering Oracle Coherence that are organized by release.

New and Changed Features

New and changed features in Administering Oracle Coherence that are organized by release.

New and Changed Features for 12c (12.2.1.4)

Oracle Coherence 12c (12.2.1.4) does not contain any new and changed features for this document.

New and Changed Features for 12c (12.2.1.3)

Oracle Coherence 12c (12.2.1.3) includes the following new and changed features for this document.

• Snapshot with global consistency, which ensure consistency across all members of a service when performing persistence snapshots. See Create a Snapshot.

• New <active-active> operational configuration element, which configures federation participants in an active-active topology. See Defining Active-Active Topologies.

New and Changed Features for 12c (12.2.1.2)

Oracle Coherence 12c (12.2.1.2) includes the following new and changed features for this document.

• Federated change events, which represent a transactional view of all the changes that occur on a local federation participant. See Processing Federated Change Events.

New and Changed Features for 12c (12.2.1.1)

Oracle Coherence 12c (12.2.1.1) includes the following new and changed features for this document.

• Dynamic recovery quorum policy, which for active persistence automatically configures the persistence recovery quorum based on a predefined algorithm. See Using the Dynamic Recovery Quorum Policy.

• Disabled Federated Caching, which excludes a cache from being federated. See Excluding Caches from Being Federated.

• Simplified federation participant configuration, which makes specifying an address port optional. See Defining Federation Participants.

New and Changed Features for 12c (12.2.1)

Oracle Coherence 12c (12.2.1) includes the following new and changed features for this document.

• Persistence, which manages the backup and recovery of Coherence distributed caches. See Persisting Caches.

• Federated Caching, which replicates and synchronizes cache data across multiple geographically dispersed clusters. See Federating Caches Across Clusters.

Other Significant Changes in This Document

Other significant changes in Administering Oracle Coherence that are organized by release.

Other Significant Changes in This Document for 12c (12.2.1.4)

For 12c (12.2.1.4), this guide has been updated in several ways. Following are the sections that have been added or changed.

• Added a section about Docker support. See Deploying Coherence Applications on Docker and Kubernetes.

• Revised instructions for defining remote addresses for federation participants. See Defining Federation Participants.

Other Significant Changes in This Document for 12c (12.2.1.3)

For 12c (12.2.1.3), this guide has been updated in several ways. Following are the sections that have been added or changed.

• Revised instructions for custom federation participants. See Federating Events to Custom Participants.

• Added support for NAT addresses when configuring federation participants. See Defining Federation Participants.

• Revised firewall port configuration recommendations. See Plan for Firewall Port Configuration.

• Revised large cluster recommendations. See Large Cluster Configuration Recommendations.

• Updated TCMP log messages. See "incompatible network configuration".

Other Significant Changes in This Document for 12c (12.2.1.2)

For 12c (12.2.1.2), this guide has been updated in several ways. Following are the sections that have been added or changed.

• Updated persistence instructions to include recommendations when using NFS mounted file systems. See Changing the Pre-Defined Persistence Directory.

Other Significant Changes in This Document for 12c (12.2.1.1)

For 12c (12.2.1.1), this guide has been updated in several ways. Following are the sections that have been added or changed.

• Revised recommendations for JVM tuning. See JVM Tuning.

• Revised concept of the proxy tier. See Deploying a Proxy Tier for Extend Clients.

Other Significant Changes in This Document for 12c (12.2.1)

For 12c (12.2.1), this guide has been updated in several ways. Following are the sections that have been added or changed.

• Revised instructions for running a multicast connectivity test. See Performing a Multicast Connectivity Test.

• Revised instructions for changing the default cluster port. See Changing the Default Cluster Port.

• Revised IPv4 and IPv6 recommendations. See Ensure a Consistent IP Protocol.

• Added a section about firewall port configuration. See Plan for Firewall Port Configuration.

• Revised recommendations for Oracle Exalogic Elastic Cloud. See Oracle Exalogic Elastic Cloud Recommendations.

• Added new log messages to the log message reference. See Log Message Glossary.