This document lists the new features, enhancements, fixed issues and, removed or deprecated features for Hazelcast Platform 5.3.0 release. The numbers in the square brackets refer to the issues and pull requests in Hazelcast's GitHub repository.
New Features
Connector for Kafka Connect source (BETA): Import data from an external system directly into a Hazelcast data pipeline without the need of a Kafka cluster.
Connector for MongoDB (BETA): Read and write from/to MongoDB via this connector and execute SQL queries on Mongo collections directly from Hazelcast.
Partition-Aware SQL Client: Send the SQL commands only to the members having the relevant data, which reduces the network hops and improves the query performances.
Data connection support in SQL: data connections and mappings using them can be managed using SQL commands.
Breaking Changes
Renamed the DataLinkFactory interface as DataConnection. #24224
Removed the TO_ROW function as it is obsolete, you can use CAST (udtObj AS JSON) instead. #23808
SQL mappings for internal maps (__sql.catalog and __jet.*) cannot be created anymore. #24282
Changed the default cloud coordinator URL from coordinator.hazelcast.cloud to api.viridian.hazelcast.com.
The default configuration now connects to https://viridian.hazelcast.com/sign-in?next=/ instead of Hazelcast Cloud.
If you want to continue accessing your Hazelcast Cloud clusters, you need to set the hazelcast.client.cloud.url property to https://coordinator.hazelcast.cloud in your configuration. #23290
Enhancements
Cloud
Hazelcast was sending requests to Kubernetes API when deploying an application with embedded Hazelcast and service-dns (DNS lookup mode) specified to a Kubernetes cluster.
This was causing the requests to be unsuccessful and the application not to start. This mechanism has been improved by creating Kubernetes client only for the DNS lookup mode. #23883
When advanced networking is enabled, the Kubernetes discovery plugin might have been discovering several endpoints (per each port)
for each member's pod. The discovery plugin now matches only the private IP per endpoint, ignoring the port values. #23766
Added the support of discovering ECS and EC2 members on AWS. See xref:deploy:deploying-on-aws.adoc[Deploying a Cluster on Amazon AWS]. #22411
Storage
Added support of generating suggested Data Definition Language (DDL) for a map with High-Density Memory Store and having no indexes. #24054
Disk tier option of Tiered Storage is now disabled by default. #23747
NOTE: Tiered Storage feature is still in BETA stage.
Distribution
Hazelcast no longer depends on JRuby; the JRuby ScriptFactory dependency must be explicitly added to the application. #23355
Added the Kafka Connect extension to the distribution. #23312
Shaded dependencies for Hazelcast Platform have been combined in a dedicated package (com.hazelcast.shaded). #23124
Networking
Added socket options for per-socket keep-alive configuration: keep-count, keep-idle-seconds, and keep-interval-seconds.
You can set these options using either the advanced network configurations or Hazelcast system properties.
See Configuring TCP Keep-Alive. #24050
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You can disable automated security fix PRs for this repo from the [Security Alerts page](https://github.com/hazelcast/hazelcast-nodejs-client/network/alerts).
Bumps hazelcast from 5.1.3 to 5.3.0.
Release notes
Sourced from hazelcast's releases.
... (truncated)
Commits
a3ae01d
Upgrade version to 5.3.0dc39625
5.3.0 release notes fix (#24591)c20c94b
Update release_notes.txt465d6b2
Update release_notes.txtac5e0e3
Prepare release 5.3.09d9d7aa
Disallow adding listener to completed jobs [HZ-2254] (#24197)4a03057
Fix nightly MySql data connection test (#24556)77461f6
Increase timeout in GenericMapStoreIntegrationTest#testClear [HZ-2430] (#24551)e1727aa
Tweak stream-to-stream fault tolerance stress test timeout and events count (...f1f6e5e
Prevent data connection creation with a wrong type (#24500)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase
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