What is a Hazelcast client?
Hazelcast clients are the lightweight clients to Hazelcast members. Hazelcast members are responsible to store data and the partitions. They act like the server in the traditional client-server model. Hazelcast clients are created only for accessing data stored with Hazelcast members of the cluster.
Is Hazelcast embedded?
Embedded Mode Hazelcast is a Java library, which means that you can embed it into your own distributed application.
How does Hazelcast cache work?
In Hazelcast, the RAM of all cluster members is combined into a single in-memory data store to provide fast access to data. This distributed model is called a cache cluster, and it makes your data fault-tolerant and scalable. If a member goes down, your data is repartitioned across the remaining members.
Is Hazelcast secure?
Hazelcast allows you to secure the communications between the WAN replicated clusters using TLS/SSL. WAN connections, cluster members and clients can have their own unique TLS/SSL certificates. You can also choose to have TLS/SSL configured on some of the members/clients and not on the others.
What is Redis vs Hazelcast?
Redis is single-threaded, so it does not efficiently scale for larger loads, while Hazelcast performance scales linearly with additional resources. Hazelcast is easy to use, and it can be embedded in apps or deployed in a client-server model.
How does Hazelcast multicast work?
With the multicast auto-discovery mechanism, Hazelcast allows cluster members to find each other using multicast communication. The cluster members do not need to know the concrete addresses of the other members, as they just multicast to all the other members for listening.
How does Hazelcast store data?
Data in Hazelcast is usually stored in-memory (RAM) so that it’s faster to access. However, data in RAM is volatile, meaning that when one or more members shut down, their data is lost. When you persist data on disk, members can load it upon a restart and continue to operate as usual.