Page History

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• Confusing `TcpDiscoverySPI.getHeartbeatFrequency` parameter is no longer supported. The parameter used to define a frequency of cluster and cache metrics that are sent by cluster nodes from one to another. Now the frequency can be adjusted with `IgniteConfiguration.setMetricsUpdateFrequency(...)` method.
  
  
• `TcpDiscoveryS3IpFinder.setAwsCredentials(AWSCredentialsProvider)` renamed to `TcpDiscoveryS3IpFinder.setAwsCredentialsProvider(AWSCredentialsProvider)`.
  
  
• Apache Ignite client nodes' failure detection timeout is now set with `IgniteConfiguration.setClientFailureDetectionTimeout(...)` and equal to 30 seconds be default. `IgniteConfiguration.getFailureDetectionTimeout()`, that is equal to 7 seconds, was used as the timeout for both server and client nodes in prior versions.

Asynchronous Programming

`IgniteAsyncSupport` and all the methods that relied on it were deprecated and to be removed in the future Apache Ignite releases. Use direct async counterparts for a variety of synchronous methods instead. Refer to this documentation to learn more about the changed approach for the asynchronous programming: https://apacheignite.readme.io/docs/async-support

Redis Integration

Default Redis cache name was changed from 'null' to 'redis_cache'.

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