blob: ddd361e4f2f4681e1fccc7c0b2364babec52f60d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
## Description
As the name implies, the purpose of the template is to detail underperforming queries for further investigation.
### Steps
- [ ] Rename the issue to - `Query Performance Investigation - [Query Snippet | Table info]`
- For example - `Query Performance Investigation - SELECT "namespaces".* FROM "namespaces" WHERE "namespaces"."id" = $1 LIMIT $2`
- [ ] Provide information in the Requested Data Points table
- [ ] Provide [priority and severity labels](https://about.gitlab.com/handbook/engineering/quality/issue-triage/#availability)
- [ ] If this requires immediate attention cc `@gitlab-org/database-team` and reach out in the #g_database slack channel
### Requested Data points
Please provide as many of these fields as possible when submitting a query performance report.
- Queries per second (on average or peak)
- Number of calls per second and relative to total number of calls
- Query timings (on average or peak)
- Database time relative to total database time
- Source of calls (Sidekiq, WebAPI, etc)
- Query ID
- SQL Statement
- Query Plan
- Query Example
- Total number of calls (relative)
- % of Total time
<!--
- Example of a postgres checkup report - https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/snippets/2056787
- Epic - Improving the Database resource usage (&365) - https://gitlab.com/groups/gitlab-com/gl-infra/-/epics/365#short-term-query-improvements
- Past examples of query performance investigations that have led to this template creation.
- Possible Index suggestion or query rewriting (#292454) - https://gitlab.com/gitlab-org/gitlab/-/issues/292454)
- High number of Sessions to the database with the value SET parameter (#292022) - https://gitlab.com/gitlab-org/gitlab/-/issues/292022)
- Query performance "Select 1" (#220055) - https://gitlab.com/gitlab-org/gitlab/-/issues/220055
- Select statements that are in execution during database CPU utilization peak times - licenses table (#292900) - https://gitlab.com/gitlab-org/gitlab/-/issues/292900
-->
/label ~"group::database" ~"database::triage"
|
