Significantly reduce downtime and risk by running two identical Hazelcast® Enterprise clusters called Blue and Green, allowing clients to be migrated from one cluster to another without client interaction or cluster downtime.
Drive productivity and customer (end-user) satisfaction by eliminating downtime
Blue-green deployment refers to a software technique which can be used to reduces or even eliminate systems downtime and its associated business risk by deploying two mirrored production environments referred to as Blue and Green. During normal operating conditions, one of the environments is in production, and the other is on active standby.
Blue/Green deployment capability provides your users and customers with a seamless experience, by eliminating downtimes (either intentional or unintended) by having always-ready standby clusters. In this model, one of the clusters provides production services to clients while the other cluster can be upgraded with the new application code.
In addition, Hazelcast offers the flexibility to migrate all clients of a cluster, subsets of clients, or select groups of clients using label filtering and black/white lists via our Management Center.
Blacklist & Whitelist via Management Center
With our Blue/Green system, you can automatically connect to another cluster when blacklisted from a currently connected cluster, including subsets using client labels to the black or white list.
Configurable Client Behavior after the Disconnection
Client behavior after disconnection is configurable via reconnect-mode:
ON: Client changes the cluster and blocks invocations
ASYNC: Client changes the cluster in the background and creates ClientOfflineException.
OFF: Client does not change the cluster; it shuts down immediately.
Prioritize Clusters when Clients try to Connect
Cluster connect order in a Blue/Green scenario is decided by order of cluster declarations in the client configuration, including Round-Robin and Delay.
Using CNAME, change the resolution of hostnames, and use them dynamically to support changing system requirements.
Introduction to Blue/Green Deployments with Hazelcast IMDG
This is the first blog post for Hazelcast IMDG’s Blue/Green Deployments feature, which is the most recent member of the…
Blue/Green Deployments and Auto DR Failover
Blue/green deployment refers to a software technique that can be used to reduce or even eliminate systems downtime and its associated business risk by deploying two mirrored production environments referred to as Blue and Green. This white paper will walk you through these deployments, the features, and several use cases.