System and method for protocol support in a multitenant application server environment

• US 9,843,629 B2
• Filed: 09/25/2015
• Issued: 12/12/2017
• Est. Priority Date: 09/26/2014
• Status: Active Grant

• Current Assignee: Oracle International Corporation (Oracle Corporation)
• Original Assignee: Oracle International Corporation (Oracle Corporation)
• Inventors: Abdelaziz, Mohamed, Agarwal, Prashant, Subramanyam, Sindhu
• Primary Examiner(s): Higa, Brendan
• Application Number:
  US14/866,618
• Publication Number:
  US 20160094627A1
• Time in Patent Office: 809 Days
• CPC Class Codes: G06F 9/5061 Partitioning or combining of resources
• CPC Class Codes: G06F 9/54 Interprogram communication
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/1027 Persistence of sessions during load balancing

Abstract

In accordance with an embodiment, described herein is a system and method for supporting an object-based stateful protocol (for example, T3 protocol) in a multitenant application server environment. The system includes a domain with a plurality of server instances, and a plurality of partitions thereon, wherein two or more partitions can spread across a first server instance and a second server instance of the plurality of server instances. Each of the first and second server instances can include a single remote java virtual machine (RJVM) that manages connections established through a single server channel on that server instance using the object-based stateful protocol. The application server instance initiating the connections can associate each connection with a particular partition using a token, and use a smart stub to recover a failed connection. A standalone Java application can similarly initiate connections to an application server instance.

Claims

1. A system for supporting an object-based stateful protocol in a multitenant application server environment, comprising:

one or more computers, each computer including one or more microprocessors;

an application server environment executing on the one or more computers, wherein the application server environment includes a plurality of partitions, wherein at least two or more of the plurality of partitions reside on a particular server instance;

a client application that initiates a plurality of partition-level connections and one or more domain-level connections to the particular server instance using an object-based stateful protocol;

a remote Java virtual machine (RJVM) on each of the client application and the particular server instance for use in managing the partition-level and domain-level connections.

2. The system of claim 1, further comprising

a smart stub for each partition-level connection on the client application, wherein the smart stub contains a partition name and a plurality of references to server instances in a particular cluster.

3. The system of claim 1, wherein, in the event of a failure of a connection, the client application dynamically constructs a connection URI using the information in the smart stub to connect to a new server instance.

4. The system of claim 1, wherein the partition-level and domain-level connections are established through a single server channel.

5. The system of claim 1, wherein the client application is selected from a group consisting of a standalone Java application and a server instance.

6. The system of claim 1, wherein each partition-level connection is associated with a partition context that associates that connection with a partition.

7. The system of claim 1, each partition-level connection is associated with a token for use in identifying the connection.

8. The system of claim 1, wherein each connection is added to a partition connection table.

9. The system of claim 1, wherein all communications between the client application and the particular server instance pass through a traffic director in the domain.

10. The system of claim 1, further comprising a connection manager, which references a partition connection table, to determine if an existing connection for a particular connection already exists before attempting to establish a new connection for the partition.

11. The system of claim 1, wherein the object-based stateful protocol is T3protocol.

12. A method for supporting an object-based stateful protocol in a multitenant application server environment, comprising:

providing an application server environment executing on one or more computers, wherein each computer includes one or more microprocessors, wherein the application server environment includes a plurality of partitions, wherein at least two or more of the plurality of partitions reside on a particular server instance;

providing a client application that initiates a plurality of partition-level connections and one or more domain-level connections to the particular server instance using an object-based stateful protocol; and

providing a remote Java virtual machine (RJVM) on each of the client application and the particular server instance for use in managing the partition-level and domain-level connections.

13. The method of claim 12, further comprising

providing a smart stub for each partition-level connection on the client application, wherein the smart stub contains a partition name and a plurality of references to server instances in a particular cluster.

14. The method of claim 12, wherein, in the event of a failure of a connection, the client application dynamically constructs a connection URI using the information in the smart stub to connect to a new server instance.

15. The method of claim 12, wherein the partition-level and domain-level connections are established through a single server channel.

16. The method of claim 12, wherein the client application is selected from a group consisting of a standalone Java application and a server instance.

17. The method of claim 12, wherein each partition-level connections is associated with a partition context that associates that connection with a partition.

18. The method of claim 12, wherein each partition-level connection is associated with a token for use in identifying the connection.

19. The method of claim 12, wherein each connection is added to a partition connection table.

20. A non-transitory computer readable storage medium, including instructions stored thereon which when read and executed by one or more computers cause the one or more computers to perform the steps comprising:

providing an application server environment executing on the one or more computers, wherein each computer includes one or more microprocessors, wherein the application server environment includes a plurality of partitions, wherein at least two or more of the plurality of partitions reside on a particular server instance;

providing a client application that initiates a plurality of partition-level connections and one or more domain-level connections to the particular server instance using an object-based stateful protocol; and

providing a remote Java virtual machine (RJVM) on each of the client application and the particular server instance for use in managing the partition-level and domain-level connections.