Distributed transactions

Posted by javi on Stack Overflow See other posts from Stack Overflow or by javi
Published on 2010-05-24T11:45:56Z Indexed on 2010/05/24 11:51 UTC
Read the original article Hit count: 353

Hello!

I've a question regarding distributed transactions. Let's assume I have 3 transaction programs:

Transaction A

  1. begin
  2. a=read(A)
  3. b=read(B)
  4. c=a+b
  5. write(C,c)
  6. commit

Transaction B

  1. begin
  2. a=read(A)
  3. a=a+1
  4. write(A,a)
  5. commit

Transaction C

  1. begin
  2. c=read(C)
  3. c=c*2
  4. write(A,c)
  5. commit

So there are 5 pairs of critical operations: C2-A5, A2-B4, B4-C4, B2-C4, A2-C4.

I should ensure integrity and confidentiality, do you have any idea of how to achieve it?

Thank you in advance!

© Stack Overflow or respective owner

Related posts about security

Related posts about distributed-transactions