Abstract
User or program mobility in distributed computing systems is becoming increasingly significant in the modern community since users may change their working locations frequently. Job migration is supplementary to remote login in the support of user mobility. However, the migration facility is not a common feature in distributed systems yet. This is mainly due to the inherent complexity in implementing such a facility. This paper proposes a logical machine migration mechanism that can effectively support software environment migration. The basic idea behind logical machine migration is to migrate a logical machine, including the running processes and their execution environment, by a single mechanism. Thus most of the migration difficulties due to the dependency on the operating system kernel are eliminated. We have realized an experimental system, called DLMS386, which successfully demonstrates such idea.
Published Version
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