add some debug info for reader and paritition state

[XuPeng-SH]

What type of PR is this?

• API-change
• BUG
• Improvement
• Documentation
• Feature
• Test and CI
• Code Refactoring

Which issue(s) this PR fixes:

issue #19247

What this PR does / why we need it:

select enable_fault_injection();
select add_fault_point('fj/log/reader', ':::', 'echo', log_level, 'table_name');