Don't understand it cleayly.
'The execution process of task instances is serial' means that task instance
executes one by one, right? Don't use the ambiguous presentation.
Every DAG should have one global variable set, let's say it's
{key1,key2,key3,key4}, task under the DAG can read & update one of them, right?
The global variable set should be static, not dynamic I suggest.
On 2020/7/2, 17:02, "Mad" <[email protected]> wrote:
This is the URL of the image in the project
proposal:https://isrc.iscas.ac.cn/gitlab/summer2020/students/proj-2002015/-/wikis/pic
About question 1:
'The execution process of task instances is serial' means that no variables
of multiple nodes will be passed to the same variable of the same
node, Although node A and node B can run at the same time, it can still be
considered serial. For example, A and B are passed parameters to C after
execution, and A is passed to C through global variables after execution. This
process has nothing to do with B Conflict.
About question 2:
I think you are right, each parameter corresponds to a global variable one
by one, and the function can be easily achieved, but this will cause the global
variable to be wasted (although it does not take up much memory), the method of
obtaining the number of global variables Similar to the variable pool, the
number of global variables can be saved to the greatest extent, and in some
extreme cases, a lot of global variables can be saved.
