Oracle International Corporation

Xianzheng Lv

Xiangdong Li

Todd Jeffery Little

Pei Zhi Shi

Xugang Shen

Jim Yongshun Jin

Yongshun Jin

A system and method for booting application servers in parallel. In an exemplary method, each server and server group entry can be associated with a dependency attribute. The method can create a dependency map based upon the dependency attributes. Servers that do not have a dependency can be booted in parallel. The remaining servers and server groups can be booted based upon the dependency map.

System and method for booting application servers in parallel

A system and method can support intra-node communication based on a shared memory queue. The shared memory queue can be associated with a shared memory, to which one or more communication peers are attached. The shared memory queue operates to allocate one or more message buffers in the shared memory that contains a first message from a sender to a receiver, and can send the first message to the receiver by linking the one or more message buffers with another message queue. Optionally, a second message buffer may be created, and the message can be sent to the receiver by copying the message to the second message buffer and linking it with another message queue. Additionally, the shared memory queue operates to receive a second message from another sender by delinking one or more message buffers associated with said second message.

System and method for supporting intra-node communication based on a shared memory queue

A system and method can support buffer allocation in a shared memory queue. The shared memory queue can be associated with a shared memory, to which one or more communication peers are attached. One or more processes can travel through a plurality of memory blocks in the shared memory, and can allocate one or more message buffers in the shared memory mutual exclusively. The allocated message buffers can be used to contain one or more messages for the one or more communication peers. Furthermore, a said process can allocate the message buffers based on an atomic operation on the memory block at the instruction level.

System and method for supporting buffer allocation in a shared memory queue

A system and method can support intra-node communication based on a shared memory queue. A transactional middleware machine can provide a complex structure with a plurality of blocks in the shared memory, wherein the shared memory is associated with one or more communication peers, and wherein the communication peers include a sender and a receiver of a message that includes the complex structure. Furthermore, the sender can link a head block of the complex structure to a shared memory queue associated with the receiver, wherein the head block is selected from the plurality of blocks in the complex structure. Then, the receiver can access the complex structure based on the head block of the complex structure.

System and method for transmitting complex structures based on a shared memory queue

A transactional system can utilize the distributed storage and high availability (HA) capability provided by a clustered database to support easy and feasible disaster recovery. The transactional middleware machine environment comprises one or more transactional application servers associated with a transaction. The one or more transactional application servers operate to persist transactional log information associated with the transaction in a database that connects with said one or more transactional application servers at a local site. The database at the local site operates to replicate the persisted transactional log information to a remote database at a remote site. The remote database allows a different transactional application server at the remote site to recover the persisted transactional log information and complete the transaction, when a disaster disables the local site.

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