High availability

LWS – The Highly Available Cloud
LWS Platform-as-Infrastructure manages compute resources as a utility. In a LWS cluster, a group of servers act as a single resource. LWS provides the ability to install, configure and manage the cluster from a single console, the Jelastic Cluster Administrator.
In a Jelastic Cluster, the Cluster Orchestrator runs the Jelastic Infrastructure. At least two servers are dedicated to the Cluster Orchestrator to guarantee maximum uptime.
Applications are run on any number of servers or hard nodes that are monitored and managed by the Cluster Orchestrator. Each of these application environments has built-in high availability features.
Automatic Load Balancing
Applications can be pre-configured to scale across multiple servers via the user interface. When additional server nodes are defined, a load balancerĀ is automatically configured and activated to distribute the application load.
Application instances can be configured for maximum performance and availability using horizontal scaling.

Session Replication

Live Migration
Live migration allows LWS to deliver all the needed resources for applications without restarting containers and causing application downtime.
As an application grows Jelastic will scale that application within its allocated server. If the server does not have resources to allocate Jelastic can scale across to another server rapidly. Live migration can perform this move without application downtime.
Live migration can also be used to move less-important applications to another node to free up resources on that node for an application to scale. In addition, it can be used during maintenance or other planned downtime to perform automated evacuation of containers from a physical server.
Isolated Containers
Container isolation for databases and application servers ensures that failure of any one component will not impact other containers.
Luxembourg Web Services uses virtualization methodologies to run multiple virtual machines (containers) simultaneously on a single host. These containers are fully isolated with no risk of interfering with one another.
If the security of any container at the hardware node is compromised, the rest of the containers are left unaffected.
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