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[RFC] Database CLI tools #59422

@Altahrim

Description

@Altahrim

Idea

Create CLI tools to investigate database issues.
It should be an easy way to get information about the database:

  • version/flavour
  • important variables (vs. recommended ones?)
  • table/index size
  • fragmentation
  • cluster info
  • buffer pool hit-rate/query cache
  • indices usage (used/unused)
  • see current locks and blocked queries

Why

A lot of our performance issues are related to database performance. It should help admins to troubleshoot issues quicker.

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