Intelligent Fault-Tolerant Mechanism for Data Centers of Cloud Infrastructure

Algorithm 3

delay_deflection_compare().

 for each operating node Nj

  Choose Ti in S

  Copy corresponding Ti in R

   if Ti in S < Ti in R

    no fault//minimal delay variation

    call checkpoint_optimization()

   else if Ti in S= Ti in R

    no fault//call checkpoint_optimization()

   else if Ti in S upper bound in R

    shut down Nj

    start new node as Nj from recent

    consistent checkpoint

   else

    call checkpoint_optimization()

   end if

   end if

   end if

 end for