Automated integrated high availability of the in-memory database cache and the backend enterprise database

One or more non-transitory computer-readable media storing instructions that, when executed by one or more computing devices, cause:

• at a first node, storing a first database comprising a first set of data;
• at the first node, executing, within a memory space that stores the first database, a first instance of an application directly linked to a first database server for the first database;
• wherein the first instance of the application provides, to a client, services that involve database transactions with the first database;
• wherein the first instance of the application depends upon the first database to provide said services;
• responsive to detecting that the first database is no longer accessible at the first node, causing the client to be redirected to a second instance of the application for provision of services that involve transactions with a second database;
• wherein the second database stores a copy of the first set of data;
• wherein the second instance of the application executes, within a memory space that stores the second database at a second node that is different than the first node, the second instance being directly linked to a second database server for the second database;
• wherein a portion of a persistently stored database of a backend database server is replicated on said first database and said second database;
• accessing configuration information describing a database cluster, the database cluster comprising at least the first node and the second node;
• based on the configuration information, configuring a cluster manager executing on one or more computing devices to perform:
• monitoring status information for each of the first database and the second database and the persistently stored database to detect whether the first database is accessible at the first node and whether the second database is accessible at the second node and whether the persistently stored database is accessible at the backend database server.