The job status is confusing, especially when not all the containers are ready.

[hao1939]

As below, only the slave:2 was ready.

Now the job is not ready, and user may confused with the status running.
If we define the running different from user's common sense, user will confuse.

[scarlett2018]

As discussed in the team meeting, one quick resolution to this problem is to add a "task status" column, so that user knows the job had started to allocate resources for tasks, and some of the tasks are still waiting for resources.

[yqwang-ms]

Solved by #2135