WO2001095094A3 - System and method for migrating processes on a network - Google Patents

System and method for migrating processes on a network Download PDF

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Publication number
WO2001095094A3
WO2001095094A3 PCT/US2001/016818 US0116818W WO0195094A3 WO 2001095094 A3 WO2001095094 A3 WO 2001095094A3 US 0116818 W US0116818 W US 0116818W WO 0195094 A3 WO0195094 A3 WO 0195094A3
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WO
WIPO (PCT)
Prior art keywords
heap
persistent
virtual
state
migrated
Prior art date
Application number
PCT/US2001/016818
Other languages
French (fr)
Other versions
WO2001095094A2 (en
Inventor
Gregory L Slaughter
Thomas E Saulpaugh
Robert Rodriquez
Original Assignee
Sun Microsystems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sun Microsystems Inc filed Critical Sun Microsystems Inc
Priority to DE60133004T priority Critical patent/DE60133004D1/en
Priority to AU2001264914A priority patent/AU2001264914A1/en
Priority to EP01939390A priority patent/EP1299800B1/en
Publication of WO2001095094A2 publication Critical patent/WO2001095094A2/en
Publication of WO2001095094A3 publication Critical patent/WO2001095094A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
    • G06F9/485—Task life-cycle, e.g. stopping, restarting, resuming execution
    • G06F9/4856—Task life-cycle, e.g. stopping, restarting, resuming execution resumption being on a different machine, e.g. task migration, virtual machine migration
    • G06F9/4862—Task life-cycle, e.g. stopping, restarting, resuming execution resumption being on a different machine, e.g. task migration, virtual machine migration the task being a mobile agent, i.e. specifically designed to migrate

Abstract

A method and system is provided for migrating processes from one vitual machine to another on a network. To migrate the external state of a process, the process may use a network service connection system or a compact network service connection system for accessing resources external to the vitual machine. A process may be migratable separately from other processes. A process may have an in-memory heap used for the execution of the process, a virtual heap that may include the entire heap of the process including at least a portion of the runtime environment, and a persistant heap where the virtual heap may be checkpointed. In one embodiment, the virtual heap may serve as the persistent heap. In another embodiment, the virtual heap may be chekpointed to a separate, distinct persistent heap. The combination of the in-memory heap, the virtual heap, and the persistent store may be referred to as virtual persistent heap. One embodiment of a method for migrating an application may include chekpointing the application to a persistent heap. Current leases to local and/or remote resources may be expired. The persistent state of the process may be packaged in the persistent heap and sent to the node where the process is to migrate. A transaction mechanism may be used, where the process's persistent state is copied and committed as having migrated on both the sending and receiving nodes. The state of the process may then be reconstituted into a new virtual persistent heap on the node where the application migrated. Leases to local and/or remote resources for the process may be re-established. The process may then resume execution on the node where it migrated. In one embodiment, a versioning mechanism may be used whereby nodes where a process once lived may cache a previous state. In addition, a user interface (UI) may be provided to manage process checkpoints.
PCT/US2001/016818 2000-06-02 2001-05-21 System and method for migrating processes on a network WO2001095094A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60133004T DE60133004D1 (en) 2000-06-02 2001-05-21 SYSTEM AND METHOD FOR MIGRATING PROCESSES ON A NETWORK
AU2001264914A AU2001264914A1 (en) 2000-06-02 2001-05-21 System and method for migrating processes on a network
EP01939390A EP1299800B1 (en) 2000-06-02 2001-05-21 System and method for migrating processes on a network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/587,113 US6934755B1 (en) 2000-06-02 2000-06-02 System and method for migrating processes on a network
US09/587,113 2000-06-02

Publications (2)

Publication Number Publication Date
WO2001095094A2 WO2001095094A2 (en) 2001-12-13
WO2001095094A3 true WO2001095094A3 (en) 2002-11-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/016818 WO2001095094A2 (en) 2000-06-02 2001-05-21 System and method for migrating processes on a network

Country Status (6)

Country Link
US (1) US6934755B1 (en)
EP (1) EP1299800B1 (en)
AT (1) ATE387664T1 (en)
AU (1) AU2001264914A1 (en)
DE (1) DE60133004D1 (en)
WO (1) WO2001095094A2 (en)

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