Since that it might have multiple upstream tasks, so which task to specify? Or you change the xcom syntax to be global?
On Wed, May 9, 2018 at 6:13 PM +0800, "刘松(Brain++组)" <[email protected]<mailto:[email protected]>> wrote: What is the magic to remove the task id ? On Wed, May 9, 2018 at 3:38 PM +0800, "Beau Barker" <[email protected]<mailto:[email protected]>> wrote: 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 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
