PostgreSQL support troubleshooting page
What does this MR do?
It creates a troubleshooting page for PostgreSQL.
Mainly it summarises what's already documented as part of other topics (such as installation, upgrading, GEO, HA/Scaling and development) so that all those references/sections are easy to find when the issue at hand is definitely PostgreSQL.
A section added about deadlocks, based on recent issues, to start the ball rolling on additional queries/procedures that are useful.
Review site; new page, linked off
Edit For visiblility, a further MR was required to fix links which caused FOSS build to break.
Related issues
Triggered by: gitlab-com/support/support-team-meta#1882 (closed)
Author's checklist
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Follow the Documentation Guidelines and Style Guide. -
If applicable, update the permissions table. -
Link docs to and from the higher-level index page, plus other related docs where helpful. -
Apply the documentation label.
Review checklist
All reviewers can help ensure accuracy, clarity, completeness, and adherence to the Documentation Guidelines and Style Guide.
1. Primary Reviewer
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Review by a code reviewer or other selected colleague to confirm accuracy, clarity, and completeness. This can be skipped for minor fixes without substantive content changes.
2. Technical Writer
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Optional: Technical writer review. If not requested for this MR, must be scheduled post-merge. To request for this MR, assign the writer listed for the applicable DevOps stage.
3. Maintainer
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Review by assigned maintainer, who can always request/require the above reviews. Maintainer's review can occur before or after a technical writer review. -
Ensure a release milestone is set and that you merge the equivalent EE MR before the CE MR if both exist. -
If there has not been a technical writer review, create an issue for one using the Doc Review template.