Babaoglu, O., and Marzullo, K. Distributed Systems. Addison-Wesley, 1993, ch. 4: Consistent Global States of Distributed Systems: Fundamental Concepts and Mechanisms.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....mutex acquisitions. Causal precedence implies temporal precedence, while the reverse is not necessarily true. The notion of causal precedence between two mutex acquisitions in a multithreaded process is analogous to the notion of causal precedence between two events in a distributed system [13]. Because concurrent events in distributed systems are not causally related, concurrent mutex acquisitions in a multithreaded process are those acquisitions whose actual order of execution does not affect the result of the computation. To preserve concurrency, we allow replicas to schedule ....

O. Babaoglu and K. Marzullo. Distributed Systems, pages 55--96. Addison-Wesley, 1993.

....mutex acquisitions. Causal precedence implies temporal precedence, while the opposite is not necessarily true. The notion of causal precedence between two mutex acquisitions in a multithreaded process is analogous to the notion of causal precedence between two events in a distributed system [3]. As concurrent events in distributed systems are not causally related, concurrent mutex acquisitions in a multithreaded process are those acquisitions whose actual order of execution does not affect the result of the computation. To preserve concurrency, we allow replicas to schedule concurrent ....

O. Babaoglu and K. Marzullo. Distributed Systems, pages 55--96. Addison-Wesley, 1993.

....is totally decentralized and composed of autonomous entities. Each peer depends only on its local knowledge and decisions to be a part of the system. This characteristic greatly improves the adaptability and robustness of the system, that doesn t depend on coordinated actions or global views [5]. 4.2 The OurGrid resource sharing protocol To communicate with the community, gain access to, consume and provide resources, all peers use the OurGrid resource sharing protocol. Note that the protocol concerns only the resource sharing in the peerto peer network. We consider that the system ....

Babaoglu, O., and Marzullo, K. Distributed Systems. Addison-Wesley, 1993, ch. 4: Consistent Global States of Distributed Systems: Fundamental Concepts and Mechanisms.

....most systems use a counter that increments when an update locally happens at a node. We follow this convention in our presentation. The VV attached to an event or a data item captures a distributed cut of the system, i.e. the perception of the state of all nodes in the system by the event issuer [3]. This algorithm supports node (replica) addition simply by letting a new node copy the VV (and the database contents) from another existing node [7, 12, 14] Other nodes treat non existent entries in a VV as zero. Thus, the VV entry comparison operator is defined as in Table 1. This paper ....

Ozalp Babaoglu. Distributed Systems, chapter 4, pages 55--96. Addison-Wesley, 1993.

....mutex acquisitions. Causal precedence implies temporal precedence, while the opposite is not necessarily true. The notion of causal precedence between two mutex acquisitions in a multithreaded process is analogous to the notion of causal precedence between two events in a distributed system [3]. As concurrent events in distributed systems are not causally related, concurrent mutex acquisitions in a multithreaded process are those acquisitions whose actual order of execution does not affect the result of the computation. To preserve concurrency, the LSA allows replicas to schedule ....

O. Babaoglu and K. Marzullo. Distributed Systems, pages 55--96. Addison-Wesley, 1993.

....notice is created (see Sec. 2.5.3) a write notice includes a pseudo page bit map in the implementation of the single owner protocol. A write notice indicates which pseudo pages have been modified in the page. 4.2. 1 Write Notice Table Each system server has n 1 time stamp vectors [KCDZ94, BM93] of length n, SiteTV[0. n 1] and TableTV, where n is the number of threads in the system. Each system server also has a write notice table with n entries. Each entry points to a list of write notice sets from the same thread in their time stamp order. The list always stores write notice sets from ....

O. Babaoglu and K. Marzzullo. Distributed Systems, chapter 4. Addison-Wesley, second edition, 1993.

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Babaoglu, O., and Marzullo, K. Distributed Systems. Addison-Wesley, 1993, ch. 4: Consistent Global States of Distributed Systems: Fundamental Concepts and Mechanisms.

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Babaoglu, O., and Marzullo, K. Distributed Systems. Addison-Wesley, 1993, ch. 4: Consistent Global States of Distributed Systems: Fundamental Concepts and Mechanisms.

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