1 Concurrency Violation encountered while { 0 } the Orchestration.

2 Such a system requires concurrency control and recovery mechanisms.

3 Yet concurrency is important in any modern system.

4 So concurrency is largely an unsolved problem.

5 The concurrency control strategy of drawing archive data based on transaction language is put forward.

6 Concurrency control and recovery techniques are used in conventional DBMS's to preserve the serializability and the permanence requirements of database transactions.

7 Functional programming is especially useful for concurrency, since it eliminates the need to synchronize access to mutable state.

8 Optimistic locking is an extremely efficient concurrency control method that guarantees data integrity without placing any physical lock in the database.

9 And condition - locking, a concurrency control mechanism involving two - phase locking is designed.

10 The EJB servers provide functionality for threading, concurrency, memory management, and security and do these things automatically so as not to burden the application programmer with the details.

11 Immutability also allows us to simplify reasoning about concurrency and provide cheap reads of shared data.

12 Optimistic concurrency check failed. The row was modified outside of this cursor.

13 It provides a set of user-accessible threads to accelerate input-output and concurrency, particularly for database applications.

14 Moreover, there are many services that do not have concurrency control at all, which may also lead to inconsistent data.

15 Of SOAP, CORBA, and XML-RPC, CORBA has been around the longest and has tackled some of the more difficult issues of distributed programming: concurrency, transactions, security, and authentication.

16 The work in this paper provides the foundation for further research on mixed real-time transaction scheduling and concurrency control, and processing mixed transactions in actual application systems.

17 A manual reset event which is explicitly aware of the Concurrency Runtime.

18 Although the buffer pool did not exceed 1 GB in the large-database tests, the smaller database and greater concurrency tests used every megabyte possible.

19 A job stream represents a container for related jobs and organizes them in terms of run time, sequencing, concurrency limitations, and repetitions.

20 In this paper, the characteristics of cooperative design transaction in open environment are studied, and the current default of distributed concurrency control protocol is analyzed.

21 You need to strike a balance between batching to reduce state changes and pushing data out to the driver early to help achieve concurrency.

22 Although it saves you from reattachment, the session may grow out of memory and probably has stale data for high concurrency systems.

23 Deadlock detection is important in any database environment for application concurrency.

24 And she said there's still latent demand, and if the login servers could handle the load concurrency would be even higher.

25 Functional programming represents the next abstraction leap: ceding more mundane details such as iteration, concurrency, and state to the runtime as much as possible.

26 However,[] the event-oriented achievements of Ajax frameworks and PHP/TK suggest that events might better express concurrency for PHP than threads do.

27 For the requirements of engineering design transaction, we present an improving optimistic concurrency control method which is based on the nested transaction model.

28 Based on the analysis of the disadvantages of the present distributed concurrency control protocol, a concurrency control protocol for cooperative design transaction in open environment was proposed.

29 ZODB is a robust, multi-user, object-oriented database system capable of storing and managing arbitrarily complex Python objects with transaction support and concurrency control.

30 They can be used to resolve both normal and advanced concurrency issues and should get you started writing pain-free (as well as error-free!) multithreaded programs.

31 The notion of immutability is also baked into all the reflection and concurrency code.

32 Concurrency can occur on uniprocessor (UP) hosts where multiple threads share the same CPU and preemption creates race conditions.

33 It needs to resolve concurrency and conflict problems to transplant the deadlock avoidance strategy from non-distributed system to distributed system.

34 A two phase locking two version concurrency control mechanism is proposed and it improves two phase locking. This concurrency control mechanism is divided into two mec...

35 None of the cache providers support all of the cache concurrency strategies.

36 Many concurrent users perform numerous transactions that require rapid access to data. Availability, speed, concurrency, and recoverability are key issues.

37 SQL Server also provides the optimistic concurrency control mechanism, which is similar to the multiversion concurrency control used in other databases.

38 The most important property of a completion port is the concurrency value.

39 But while synchronization is primarily a concurrency control mechanism, transactions are primarily an exception-handling mechanism.

40 Concurrency Violation encountered while { 0 } the Orchestration Port'{ 1 } '.

41 Programmers have to worry about scale, synchronisation, races, deadlocks and many other concurrency issues.

42 If, on the other hand, our transaction is I/O bound (or perhaps offloads work onto some other server), then we may need to push the concurrency very high to achieve a respectable throughput.

43 A two phase locking two version concurrency control mechanism is proposed and it improves two phase locking. This concurrency control mechanism...

44 This paper proposes a hybrid optimistic real-time transaction concurrency control method based on high priority two phase locking scheme (HORTCC-SHP2PL).

45 Concurrency violation in at least one row. Underlying values refreshed.

46 Secondly, this thesis discusses the single process, multithread and thread poll concurrency modes to meet the certain performance requirement of different call traffics.

47 Based on the known technologies of MMDB and DRDB, this thesis studies the concurrency control mechanism for business objects in application servers of critical business.

48 Because multiple concurrent XML HTTP requests can be scheduled in parallel, our application essentially becomes a concurrent program -- and concurrency is hard.

49 This might be based on throughput rate or on the concurrency.

50 The concurrency control mechanism and the locking strategies ate illustrated, the recovery mechanism is carried out by means of log.

51 In this paper, distirbuted transaction, concurrency control and resource request model are introduced in detail. The universal deadlock condition in distirbuted database system is summarized.

52 Firebird offers excellent concurrency, high performance, and powerful language support for stored procedures and triggers.

53 The management of concurrency is, however, one of the core problems in operating systems programming.

54 Seam weaves a concurrency management layer into its context model.

55 Design and realization of communication mechanism and concurrency control mechanism of CoGIS were provided, and the communication interfaces of delivery layer and representation layer were designed.

56 Methods A nested transaction model and concurrency control algorithm based on locking is introduced.

57 Concurrency in the java.util.concurrent collection is enabled via re-entrant read-write locks and is now supported natively inside Terracotta 2.4.

58 The Concurrency Runtime also provides access to an underlying resource manager and work scheduler.

59 Although serializability guarantees the correctness of concurrent access,[] it meanwhile causes lots of loss in concurrency and brings down the system throughput.

60 In my opinion, the common approach of implementing CSP via thread-like coroutines within a single OS thread gives the user all of the headaches of concurrency with none of the scalability.

61 Study on Process Modeling and Concurrency Technology of Product Design and Process Plan.

62 The multilevel secure concurrency control algorithm base on snapshots and multilevel transaction schedule algorithm based on 2PL and serialization graph are presented.

63 There are four isolation levels in DB2 to control concurrency.

64 The concurrency control mechanism and the locking strategies ate illustrated, the recovery mechanism is carried out by mea...

65 Since Business Process Choreographer executes activities within transactions, concurrent access to shared variables is governed by transactional isolation and concurrency control.

66 The dissertation makes analysis and discussion of concurrency control method of currently available CSCW system and proposes the concurrent control principle and consistent model of collaborative Dr.

67 Air defense weapon system is a complex system, it is characterized with synchronism and concurrency.

68 The preliminary result shows, that the two-phase locking protocol can do well for supporting the transaction concurrency in XSQS.

69 A TCS must be capable of organizing and controlling complex business operations including resource recruitment, business function management, concurrency control, and failure recovery.

70 We describe a hybrid concurrency control policy using dynamic timestamp allocation method for distributed database systems.

71 Based on flow - control's discreteness, configure, affair and concurrency transacting , one application is organized perfectly . "

72 On the other hand, in the field of Native XML Databases (NXD) the research concerning the transaction and the concurrency control mechanism is initiated not long ago.

73 Operational Transformation, at its core, is an optimistic concurrency control mechanism.

74 The new line set up makes possible to keep the overall consumption below 300 m. a record in its class! improving this figures by 10 to 20% with respect to the other concurrency wings.

75 Finally, the performance evaluation of our concurrency control algorithm is given compared with the locking algorithm in the ORION.

76 The paper focused on concurrency control mechanism of mobile transactions and proposed a concurrency control strategy based on dynamic timer.

77 In order to maintain the consistence of shared design objects, system adopts user roles management, concurrency control and synchronization mechanism.

78 At this point, it's pretty much common knowledge that past a certain level of concurrency doing I/O asynchronously vastly outperforms synchronous I/O in separate threads.

79 Abstract: A locking - based concurrency control scheme fo r object - oriented databases ( OODBs ) was presented.

80 The concurrency decreases and data integrity increases when you move the isolation level from uncommitted read (UR) to repeatable read (RR).

81 A concurrency control algorithm based on the transaction conflict graph is proposed.

82 The mechanism not only makes user to get query result quickly, but also enhances the concurrency of update transaction.

83 Deadlock detection and prevention of transaction are very important to concurrency and integrity in database systems.

84 The Concurrency Runtime is a concurrent programming framework for C ++.

85 The Concurrency Runtime simplifies parallel programming and helps you write robust, scalable, and responsive parallel applications.

86 The CCR addresses the need of service-oriented applications to manage asynchronous operations, deal with concurrency,[http:///concurrency.html] exploit parallel hardware and deal with partial failure.

87 Many of our languages are dependent on fragile concurrency mechanisms, like threads with shared state, or possibly worse, a global lock that limits execution to a single thread on a single core.

88 This paper analyzes the property of PDM and a nested transaction model which can improve concurrency of two phase locking mechanism.

89 Introduce concurrency control method based on transaction instance lock set and posterior sub-transaction type set.

90 One of its interesting features is the actor-based concurrency support that is modeled after the Erlang programming language.

91 A data management system(DMS) for engineering design can support hierarchical decomposition, multiple levels of abstraction, concurrency control and design evolution.

92 High performance concurrency control can improve parallel processing capabilities while decreasing perceived interactive time.

93 Concurrency control algorithm is used to ensure the consistency of multiuser database while allowing a set of transactions to be executed concurrently.

94 As far as SRTDBS, the concurrency control algorithm in transaction management should meet the security and timeliness.

95 Third, it induces comprehensive and systemative solution for concurrency problem in enterprise database systems on Windows-SQL Server platform.

96 The concurrency operation of the desktop databank could be conducted.

97 This paper presents a model for object -oriented distributed transactions, and proposes the concurrency control algorithm that fits this mode. In this paper, the algorithm has been proved.

98 DB2 extends its common services, such as optimization, indexing, concurrency control, and utilities, across the traditional relational and XML column data.

99 At the same time an improved concurrency control model based on DHP - 2 PL was presented.

100 Data fragmentation and distribution, distributed database design, query processing and optimization, distributed concurrency control, reliability and commit protocols, and replicated data management.

101 This paper presents a novel concurrency control method for real-time database transactions: semantic multi version concurrency control protocol(SMVCC).

102 Using multiple vertex buffers in round - robin fashion can help with concurrency.

103 Lift also makes Comet-style Ajax perform especially well thanks to Scala's actor-based concurrency system.

104 The design transaction model and high concurrency control mechanism which guarantee correctness and consistency is the key in PDM.

105 Pessimistic concurrency locks data during update so that other users are not in danger of committing incompatible data changes.

106 Lock escalation is the process of converting many fine-grain locks into fewer coarse-grain locks, reducing system overhead while increasing the probability of concurrency contention.

107 But JSR-170/238 take the concept much further by adding locking and concurrency, versioning, and event monitoring, built-in.

108 Thirdly, this thesis discusses the issues during large number of concurrent TCP connections. The concurrency mode described in the second part is improved to a new solution: balanced load thread pool.

109 DMVOCC - MDA concurrency control with multiversion dynamic adjustment protocol was presented for processing mobile distributed real - time transaction.

110 The protocol presented combines the advantages of multiversion concurrency control mechanism with the advantages of two phase locking.

111 How to keep data consistency is the major problem in distributed database concurrency system.

112 Exploiting the feature of main memory database, we put forward pre-analysis based conflict-free concurrency algorithm by determining the read and write set of the transaction in advance.

113 A two phase locking two version concurrency control mechanism is proposed and it improves two phase locking. This concurrency control mechanism is divided into two mechanism...

114 What's difficult about concurrent programming is thinking in terms of concurrency with threads.

115 Concurrency Violation encountered while { 0 } the { 1 }'{ 2 } '.

116 The residue number system ( RNS ) is a carry - free system and allows a high degree of concurrency.

117 Both version management and concurrency control are critical parts of Engineering Database Management System.

118 Air defense weapon system is a complex system, it is characterized with asynchronism and concurrency.

119 Copy a delegate to a local variable before publishing to avoid concurrency race condition.

120 A common example of the need for multilevel recovery occurs in index management, where holding region locks until transaction commit leads to unacceptably low levels of concurrency.

121