What is GemFire?

What is GemFire?

Pivotal GemFire is a data management platform that provides real-time, consistent access to data-intensive applications throughout widely distributed cloud architectures. GemFire pools memory, CPU, network resources, and optionally local disk across multiple processes to manage application objects and behavior.

What is a GemFire cluster?

Cluster members are programs that connect to a Tanzu GemFire cluster. You configure members to belong to a single cluster, and you can optionally configure them to be clients or servers to members in other clusters, and to communicate with other clusters.

What is the use of cluster configuration?

Why Use the Cluster Configuration Service Using a common cluster configuration reduces the amount of time you spend configuring individual members and enforces consistent configurations when bringing up new members in your cluster. You no longer need to reconfigure each new member that you add to the cluster.

Why do we use GemFire?

GemFire is a high performance distributed data management infrastructure that sits between application cluster and back-end data sources. With GemFire, data can be managed in-memory, which makes the access faster. Spring Data provides an easy configuration and access to GemFire from Spring application.

What is cluster configuration database?

The Cluster Configuration Database (CCD) is a highly available, replicated database that is used to store internal configuration data for Sun Cluster configuration needs. The CCD database is divided into an Initial (Init) and a Dynamic database.

Why we use clusters and where it should be configured give real life example with its configuration?

For the cluster configuration, a file share witness is required on a separate server. Microsoft recommends that this be on a Client Access Server in the same site, but depending on the logical and geographical properties of the network, this may be in a separate location to both servers and on a standard file server.

Is GemFire a database?

GemFire is a combined data and compute grid with distributed database capabilities, highly available parallel message queues, continuous availability, and an event-driven architecture that is linearly scalable with a super-efficient data serialization protocol.

How does mssql cluster work?

SQL Server clustering is the term used to describe a collection of two or more physical servers (nodes), connected via a LAN, each of which host a SQL server instance and have the same access to shared storage. When the primary server is fixed, you can quickly revert operations back.

What is a Gemfire locator?

GemFire locators provide both member discovery and load-balancing services. You configure clients with a list of locator services and the locators maintain a dynamic list of member servers. GemFire uses continuous querying to enable event-driven architectures.

What is the cache in Gemfire?

The cache in the GemFire provides the essential data management services as well as manages the connectivity to other peers. The cache configuration ( cache.xml) describes how the data will be distributed among different nodes:

What is a change notification in Gemfire?

GemFire ties events and data together so that when an event is processed, the data required to process the event is available without additional queries to a disk-based database. Clients can subscribe to change notifications so that they can execute tasks when a specific piece of data changes.

How to configure spring data Gemfire components?

To simplify configuration, Spring Data GemFire provides various annotations for configuring core GemFire components: To set up the GemFire cache and region, we have to first setup few specific properties. Here mcast-port is set to zero, which indicates that this GemFire node is disabled for multicast discovery and distribution.