1

2 This test app has to exercise all the aspects of the request handling

3 and the assigner code.

4

5 The assigner has two different Qs, plus a set of currentTaskSlvs check for tasks and also check for explicit VPs.

6

7 So, in the app, make tasks, and also explicit VPs.. create such that they

8 interleave, cause assigner to switch between.

9

10 So, when start, make some tasks, then make some explicit VPs, then some

11 tasks, back and forth.. second batch of tasks have inter-dependencies, so

12 some of the VPs should jump into the middle of them..

13

14 Then, make it so that the last two tasks talk to each other, suspending

15 each other in turn, (which should cause the extra VPs to dissipate) and

16 after that they create a bunch more tasks.

17

18 Okay.. what needs to be exercised?

19 -] create new slave when task suspends

20 -] dissipate extra slave when have a task one, and no free tasks

21 -] suspend a task -> no tasks in taskQ -> empty task slave in slaveQ ->

22 dissipate that task slave -> explicit slave next in slaveQ, animate that.

23 Means: To get an empty task slave in slaveQ -> create a task that will

24 suspend, then create a normal task, which will cause an extra task

25 slave to be created

26

27 ===================

28 To have explicit VPs as well tasks.. add a field to semantic data holds type

29 of VP: whether it's for running tasks, vs an explicit VP. when an

30 explicit dissipates, then switch it to a task VP that has no suspended

31 tasks..

32

33 So, in the semantic data, have:

34 -> taskVP vs explicitVP

35 -> has suspended task vs idle

36

37 Then fix the assigner logic:

38 When task suspends, get next readyVP,

39 check if it's an explicit

40 and if yes, resume it,

41 if no, then it's a taskVP, so get next task from taskQ and do it.

42 Check whether taskQ empty

43 if yes, then in the state: suspended taskVP, have empty taskVP, no tasks

44 so,

45

46 If taskQ empty, and VP Q empty, return NULL, which will trigger the

47 back-to-back Master backoff.

48

49 If assigner called and no suspended slaves and taskQ empty.. does it have

50 a "current task slave"? If not, create one in the semantic Env.

51 ==================================