MULTI-CLUSTER DATABASE MANAGEMENT SYSTEM

1 . (canceled)

2 . A system comprising:

a first cluster and a second cluster in a virtual computing system;

a server residing on a first virtual machine on the first cluster;

a first agent residing on a second virtual machine on the first cluster, wherein the first agent is configured to communicate with the server; and

a second agent residing on a third virtual machine on the second cluster, wherein the second agent is configured to communicate with the server;

wherein the server is configured to:

provide a first database management service to a first database stored on the first cluster via the first agent; and

provide a second database management service to a second database stored on the second cluster via the second agent.

3 . The system of claim 2 , wherein the first agent is configured to poll the server at regular intervals to receive database management service requests from the server.

4 . The system of claim 2 , wherein the server is configured to store metadata about the first agent and the second agent in a repository on the first cluster.

5 . The system of claim 2 , wherein the first and second database management services include database provisioning services and database protection services.

6 . The system of claim 5 , wherein the database provisioning services include creating new databases and registering existing databases.

7 . The system of claim 5 , wherein the database protection services include capturing snapshots of databases and maintaining transaction logs.

8 . The system of claim 2 , wherein the first cluster and the second cluster are configured as remote sites of each other to enable data replication between the first and second clusters.

9 . A method comprising:

receiving network information for creating an agent virtual machine on a first cluster of a virtual computing system;

creating the agent virtual machine on the first cluster using the network information;

installing a first agent on the agent virtual machine;

splitting a server and a second agent that are co-located on a server virtual machine on the first cluster such that:

the server remains on the server virtual machine; and

the second agent is moved to the agent virtual machine; and

configuring the server to manage databases on the first cluster through the first agent.

10 . The method of claim 9 , further comprising:

receiving a request to register a second cluster with the server;

creating a second agent virtual machine on the second cluster; and

installing a third agent on the second agent virtual machine to enable the server to manage databases on the second cluster through the third agent.

11 . The method of claim 10 , wherein creating the second agent virtual machine comprises:

validating network information received for the second cluster;

preparing an operating system disk for the second agent virtual machine;

replicating the operating system disk to the second cluster; and

creating the second agent virtual machine using the replicated operating system disk.

12 . The method of claim 10 , further comprising configuring the first cluster and the second cluster as remote sites of each other to enable data replication between the clusters.

13 . The method of claim 9 , wherein creating the agent virtual machine comprises:

cloning an operating system disk of the server virtual machine;

updating network configuration information in the cloned operating system disk; and

creating the agent virtual machine using the updated cloned operating system disk.

14 . A method comprising:

upgrading a server on a first cluster of a virtual computing system;

upgrading, in parallel, multiple agents on multiple clusters of the virtual computing system, wherein:

a first agent of the multiple agents is on the first cluster; and

a second agent of the multiple agents is on a second cluster; and

upon successful upgrade of each agent:

identifying database server virtual machines on the cluster corresponding to the successfully upgraded agent; and

upgrading the identified database server virtual machines.

15 . The method of claim 14 , wherein upgrading the identified database server virtual machines comprises upgrading all database server virtual machines on a particular cluster in parallel.

16 . The method of claim 14 , further comprising:

determining that upgrading of a particular agent has failed; and

terminating upgrade of database server virtual machines on the cluster corresponding to the particular agent.

17 . The method of claim 14 , further comprising placing a hold on new operations during the upgrading of the server.

18 . The method of claim 14 , wherein upgrading the server comprises:

completing existing operations on the server;

downloading an upgrade package; and

installing the upgrade package on the server.

19 . The method of claim 14 , wherein upgrading an agent comprises:

sending an upgrade package to the agent; and

receiving confirmation of successful installation of the upgrade package from the agent.

20 . The method of claim 14 , wherein upgrading database server virtual machines comprises:

creating an upgrade operation for each database server virtual machine;

sending the upgrade operation to the agent on the cluster containing the database server virtual machine; and

receiving confirmation of successful upgrade from the agent.

21 . The method of claim 14 , further comprising:

determining that upgrading of a particular database server virtual machine has failed; and

rolling back the agent on the cluster containing the particular database server virtual machine to a pre-upgrade state.