[Dashboard] Improve displaying and navigation for tasks/actors

[alexeykudinkin]

Description

Currently, it's pretty hard to navigate Ray Dashboard when you're for example trying to get details of running tasks/actors.

Would be great if we added links to respective Actor/Tasks pages from

• Cluster view: when i open up and see actors running on a node i want to be able to navigate to Actors/Task running there right away
• Fix Main page Ray Core table to always show the most recent 10k tasks and not some historical 10k tasks that have already been evicted

Use case

No response

[alanwguo]

Example: In the "Clusters" view, the worker should link to the Actor detail page or the Task detail page.

[alanwguo]

I don't understand

Fix Main page Ray Core table to always show the most recent 10k tasks and not some historical 10k tasks that have already been evicted

The tables views do show 10k tasks that have not been evicted. Is there a table view where the links are missing?
I would expect there to be no row at all in the case the task got evicted.

[alexeykudinkin]

Once you cross 10k threshold Ray Core Overview stops showing you anything

[MengjinYan]

Fix Main page Ray Core table to always show the most recent 10k tasks and not some historical 10k tasks that have already been evicted

Do you mean you'd like to see (1) more than 10k tasks or (2) still the 10k task but sorted by some fields so that we can see all the recent and not completed tasks?

[alexeykudinkin]

@MengjinYan ideally both, but at the very least we should show 10k most recent tasks

[MengjinYan]

@MengjinYan ideally both, but at the very least we should show 10k most recent tasks

For (1) it will need to be resolved by our new stack

For (2), from my understanding, the order of tasks returning (and will be truncated at 10k) today are: (1) All incomplete tasks (roughly ordered by start time) (2) All the completed actor task (ordered by completion time); (3) All other tasks (ordered by completion time)

So it should already satisfy the ask. At the same time, if you see a specific case that violates the above, please let me know and I'll take a look.

[alexeykudinkin]

@MengjinYan it doesn't work right now -- after 10k tasks i'm getting empty Dashboard (i can share a workspace where you can repro that)

[MengjinYan]

@alexeykudinkin If you can share your workspace it will be great. Thanks!