What’s new in Management Center 5.5

The What’s New page for Management Center 5.6-SNAPSHOT will be available when this version is released. For the last major release, see below.

Here are the highlights of what’s new and improved in Hazelcast Management Center 5.5.

Hazelcast Management Center 5.5 requires Java 17 or later.

With enhanced monitoring and an improved console experience, these improvements are designed to elevate your cluster management experience.

For new and improved features in Hazelcast Platform 5.5, see What’s new in Hazelcast Platform 5.5.

Lite Member management

Hazelcast supports two kinds of members:

Full Members for when you need to scale both data storage and computational capabilities across the cluster
Lite Members are useful when you need additional computational power or clients that access data without the overhead of data storage and synchronization

With Hazelcast Platform 5.5, it’s now possible to execute Jet jobs only on the Lite members and therefore scale computational power independently of storage. Management Center has always supported promoting a Lite member to a Full member but in this release you can also now demote a Full member to a Lite member.

Multi-version rolling upgrades

Hazelcast Platform 5.5 introduces Long-term Support (LTS) releases to simplify your upgrade experience and give you greater control over when and how you upgrade your software. It’s now possible to upgrade from Hazelcast 5.2.x or later to 5.5 in a single upgrade.

Management Center 5.5 now supports this multi-version rolling upgrade. For more info, see Triggering a Rolling Upgrade.

Multi-member routing for Java clients

Hazelcast Platform 5.5 adds an additional client routing option for Java client applications connecting to geographically dispersed clusters. Management Center now supports this new multi-member client routing.

Multi-resource User Code Namespaces

With Management Center 5.5 you can use Namespaces to monitor all the User Code Namespaces that are connected to your Hazelcast cluster. User Code Namespaces provide a container for Java classpath resources. Management Center has enhanced its support for User Code namespaces. For more info, see User Code Namespaces.

Support for Log4j2 JSON template logging

Management Center now supports JSON Templates for logging purposes. You can customize the content of logs as well as enable audit logging. For further information see Logging.

Improved reporting on slow operations

Reporting on slow operations has been improved to provide information on operations detected by the SlowOperationsDetector. This detailed information is now included on the Members page, which helps better identify potential problems. For more info, see Slow Operations.

Vector Collections (BETA)

Vector Collections support a specialized type of vector that’s optimized for storing, searching, and managing vector embeddings along with additional metadata. This feature allows you to include metadata values for filtering, processing, and detailed analysis of vectors.

Management Center 5.5 has added support for Vector Collection metrics. For more info, see Vector Collections.

Additional Improvements and fixes

Client Filtering Preview: see the effects of Client Filtering actions before they’re made live. For more info, see Client Filtering preview.

Limit Client Filtering modes: you can now use a system property to limit the available Client Filtering modes to ALLOWLIST, DENYLIST, or both (which is the default). For more info, see Client Filtering modes.

WAN Replication table: this table has been improved to increase readability, and it’s also now possible to configure the consistency-check-strategy during the dynamic creation of a WAN publisher within Management Center. The dropdown fields now also support long values without impacting the UI.

Config Healthcheck: the warning icon in the Side Bar now displays the color of the highest severity issue detected.

OpenID Connect: you can now load configuration parameters from an OIDC configuration endpoint.

SQL Browser: when closed, you are now redirected to the previous page instead of the Dashboard.

Clustered REST: the allowed values for memberConnection have changed from ALL | <member-address> to ALL_MEMBERS | MULTI_MEMBER | SINGLE_MEMBER.

For a full list of bug fixes and enhancements, see Hazelcast Management Center 5.5.x release notes.

To get started with Hazelcast Management Center, or upgrade an existing installation, see Installing and Starting Management Center.