Flexible Rollback Recovery In
Dynamic Heterogeneous Grid Computing
ABSTRACT
Large applications executing on Grid or cluster
architectures consisting of computational nodes create problems with
reliability. The source of the problems are node failures and the need for
dynamic configuration over extensive runtime. This paper presents two
mechanisms called Theft-Induced Checkpointing and Systematic Event Logging.
These are transparent protocols capable of overcoming problems associated with
both faults, i.e., crash faults, and node or subnet volatility. Specifically,
the protocols base the state of the execution on a dataflow graph, allowing for
efficient recovery in dynamic heterogeneous systems as well as multithreaded
applications. By allowing recovery even under different numbers of processors,
the approaches are especially suitable for applications.
EXISTING SYSTEM
v Grid
or cluster architectures consisting of hundreds or thousands of computational
nodes create problems.
v The
problems are node failures and the need for dynamic configuration over
extensive runtime.
v To
overcome the problem of applications executing in large systems ,the
MTTF(MeanTimeToFailure) approaches or sinks
below the execution time of the
application and could not solve the fault
tolerance problems in grid computing.
2.3
PROPOSED SYSTEM
v
These protocols execute on a dataflow graph,
allowing for efficient recovery in dynamic heterogeneous systems as well as
multithreaded applications.
v
Allowing recovery even under different numbers
of processors, the approaches are especially suitable for applications.Low-cost
protocols offer the capability of controlling or bounding the overhead,the
protocol is very small,The maximum work lost by a crashed process is small and
bounded.
3.1
Hardware CONFIGURATION
•
PROCESSOR :
Pentium IV 2.4 GHz
•
HARD DISK :
40 GB
•
RAM :
521 MB
3.2
SOFTWARE CONFIGURATION
•
Operating system :-
Windows XP Professional
•
Front End :-
JAVA
•
Back End :-MySql
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