International Business Machines Corporation

Sanhong Li

Lei Chen

Junjie Cai

Weiwei Gao

A virtual machine shared by tenants triggers an accept wrapper for an accept operation. The virtual machine, in response to the accept operation bound to a particular address call for binding a particular tenant to a particular IP address and a shared port, creating a first socket to listen to a particular IP address assigned to a particular tenant and creating a second socket to listen to another port. The virtual machine, in response to a connection occurring on the first socket, creating a first thread and forwarding the first thread to the accept wrapper from the particular IP address and in response to the connection occurring on the second socket, creating a second thread and forwarding the second thread to the accept wrapper from the another port. The virtual machine returns at least one of the first thread and the second thread in response to the accept operation call.

Sharing a java virtual machine

A JAVA virtual machine with multiple tenants is shared by allocating an IP address to each of the tenants, creating a separate virtual network interface for each of the tenants and configuring each separate virtual network interface with the respective separate IP address allocated for each tenant. For each of the tenants, network operations are performed via the virtual network interface created for that tenant, to provide for network isolation of each tenant sharing a JAVA virtual machine.

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Shanghai, China

Sanhong Li