Fix HoodieTable injecting HoodieBackedTableMetadata not reusing underlying MT readers

[hudi-bot]

Currently, HoodieTable is holding HoodieBackedTableMetadata that is setup not to reuse actual LogScanner and HFileReader used to read MT itself.

This is proving to be wasteful on a number of occasions already, including (not an exhaustive list):

#6373

JIRA info

• Link: https://issues.apache.org/jira/browse/HUDI-4937
• Type: Bug
• Epic: https://issues.apache.org/jira/browse/HUDI-1292
• Affects version(s):
  • 0.12.0
• Fix version(s):
  • 1.1.0

[hudi-bot]

This issue belongs to a closed JIRA Epic: https://issues.apache.org/jira/browse/HUDI-1292

[hudi-bot]

Linked PR(s)

• [HUDI-4937] Fix HoodieTable injecting non-reusable HoodieBackedTableMetadata aggressively flushing MT readers #6815