Implement an information schema table to inspect flow node's internal state.

[waynexia]

What problem does the new feature solve?

Provide an information schema table like cluster_info to inspect flow node's internal state. Things like assigned tasks, handled rows etc can be reported in this way.

What does the feature do?

• Implement a system table for flow node

Implementation challenges

No response

[sunng87]

We will also need to build a dashboard module to display this type of information.

[waynexia]

This reminds me that the allocation (task to flownode) info is also requested in meet-up

[sunng87]

yes, we also need to track lifecycle and status of tasks.

[Kelvinyu1117]

Can I work on it?
I have briefly looked at the code, should I start with FlownodeManager? It seems that I can get most of the information of the task from it.

[waynexia]

Sorry for the delay...

FlownodeManager should contain the info we need. The requested system table needs to read that info from FlownodeManager and then construct a temporary table from those data like other tables in information_schema.

Are you still interested in this task?

[Kelvinyu1117]

Yes, let me take it.