50 lines
2.2 KiB
Markdown
50 lines
2.2 KiB
Markdown
## Description
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As the name implies, the purpose of the template is to detail underperforming queries for further investigation.
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### Steps
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- [ ] Rename the issue to - `Query Performance Investigation - [Query Snippet | Table info]`
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- For example - `Query Performance Investigation - SELECT "namespaces".* FROM "namespaces" WHERE "namespaces"."id" = $1 LIMIT $2`
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- [ ] Provide information in the Requested Data Points table
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- [ ] Provide [priority and severity labels](https://about.gitlab.com/handbook/engineering/quality/issue-triage/#availability)
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- [ ] If this requires immediate attention cc `@gitlab-org/database-team` and reach out in the #g_database slack channel
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### SQL Statement
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```sql
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```
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### Data from Elastic
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Instructions on collecting data from [PostgreSQL slow logs stored in Elasticsearch](https://gitlab.com/gitlab-com/runbooks/-/merge_requests/3361/diffs)
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### Requested Data points
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Please provide as many of these fields as possible when submitting a query performance report.
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- Queries per second (on average or peak)
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- Number of calls per second and relative to total number of calls
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- Query timings (on average or peak)
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- Database time relative to total database time
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- Source of calls (Sidekiq, WebAPI, etc)
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- Query ID
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- Query Plan
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- Query Example
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- Total number of calls (relative)
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- % of Total time
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<!--
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- Example of a postgres checkup report - https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/snippets/2056787
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- Epic - Improving the Database resource usage (&365) - https://gitlab.com/groups/gitlab-com/gl-infra/-/epics/365#short-term-query-improvements
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- Past examples of query performance investigations that have led to this template creation.
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- Possible Index suggestion or query rewriting (#292454) - https://gitlab.com/gitlab-org/gitlab/-/issues/292454)
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- High number of Sessions to the database with the value SET parameter (#292022) - https://gitlab.com/gitlab-org/gitlab/-/issues/292022)
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- Query performance "Select 1" (#220055) - https://gitlab.com/gitlab-org/gitlab/-/issues/220055
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- Select statements that are in execution during database CPU utilization peak times - licenses table (#292900) - https://gitlab.com/gitlab-org/gitlab/-/issues/292900
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-->
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/label ~"group::database" ~"database::triage"
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