Fluo Tour: Collisions

Tour page 8 of 26

When two transactions overlap and attempt to modify the same data, one of them will fail. Try writing code to do the following which will create a collision.

  • Create transaction tx1
  • Using tx1 set kerbalnaut0001:name:last to Kerma
  • Commit tx1
  • Create transaction tx2
  • Create transaction tx3
  • Using tx2 append n to the value of kerbalnaut0001:name:last
  • Using tx3 append N to the value of kerbalnaut0001:name:last
  • Commit tx2
  • Commit tx3 wrapping with try/catch that prints Exception
  • Create snapshot and print kerbalnaut0001:name:last

< 8 / 26 >