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Re: About the difference between xcom and variable


Use xcom for communication between tasks.

In the upcoming version 1.10 there's no need to specify task_ids for xcom.

You can simply say:
self.xcom_pull(context, key='name')


> On 9 May 2018, at 17:22, Song Liu <songliu@xxxxxxxxxxx> wrote:
> 
> Hi,
> 
> For the cross-task communication, there are two options:
> - xcom
> - variable
> 
> if I have make sure the key of variable is global unique (such uuid), is there any other limitations or cons for using variable instead of xcom ? since that xcom should specify the task_id which is used not very convenient compared with variable.
> 
> Any information is appreciated.
> 
> Thanks,
> Song