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Disable idle transaction timeout with_lock_retries

What does this MR do?

I was able to reproduce the PRD failure by doing the following:

  1. Configure timeouts in config/database.yml.
development:
  variables:
    statement_timeout: 10000
    idle_in_transaction_session_timeout: 30000
  1. Create a migration that adds a column to projects table.

  2. Lock the projects table in a psql session:

begin;
lock projects IN EXCLUSIVE MODE;

(keep it running)

  1. Run the migration.

  2. At the 11th iteration you should see PG::UnableToSend error

After the fix is applied, the migration is iterating through the loop.

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Does this MR meet the acceptance criteria?

Conformity

Availability and Testing

Security

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  • 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

Closes #215866 (closed)

Edited by Yorick Peterse

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