[Proposal] Memory tracker optimization

[xinyiZzz]

Design document: https://shimo.im/docs/DXvQPcqPH3TyR6pY

Motivation

1. BE lacks memory access control, OOM frequently occurs during task execution,
2. Users often report that BE consumes a lot of memory and cannot effectively locate the memory location;
3. Cannot effectively limit the memory usage of a single query;

Expected Return

stability:

1. Introduce memory access control to reduce process crashes caused by insufficient memory, and reject task submission when memory is insufficient;
2. The current memory usage statistics can be more accurately observed and printed at any time, and Top Query and memory hot spots can be located;

Optimization direction

1. MemTracker [Feature] Refactored memory statistics framework MemTracker #7196

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct