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Resolve "Query Performance Investigation - Query ID 2128753358500210093 (internal_ids table)"

What does this MR do?

Reduce the time that we hold the update lock for internal id

We are performing an increment to the metrics when we have a lock on an internal id row, but the metric update has a mutex on the prometheus metric client, which may cause us to hold the lock on the internal id row for longer than we need.

To remove this, we move the counter outside of the lock.

Screenshots (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

Availability and Testing

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

  • Label as security and @ mention @gitlab-com/gl-security/appsec
  • The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
  • Security reports checked/validated by a reviewer from the AppSec team

Related to #325431 (closed)

Edited by Marc Shaw

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