dosubot[bot] commented on issue #7752:
URL:
https://github.com/apache/incubator-devlake/issues/7752#issuecomment-2231912075
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Hey @SiliconSatchel! I'm here to help you with your bug 🐞 Let's squash it
together!
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The issue with the "file dimension" metrics not displaying properly in the
"Component and File-Level Metrics" dashboard in DevLake v1.0.1-beta2 is due to
an SQL query error related to the `file_path` column and character set issue.
The error message indicates a conflict between the `binary` and
`utf8mb4_unicode_ci` character sets.
To resolve this, you need to ensure that the `file_path` column is properly
encoded and modify the SQL queries to handle character set issues. Here are the
corrected SQL queries for the affected panels:
For the "files with maximum number of authors" panel:
```sql
SELECT CONVERT(file_path USING utf8) AS file_path,
COUNT(DISTINCT author_name) AS cnt
FROM commits
JOIN commit_files
JOIN repo_commits rc
ON commit_files.commit_sha = rc.commit_sha
AND commit_files.commit_sha = commits.sha
WHERE repo_id IN (${repo_id})
AND $__timeFilter(commits.authored_date)
AND file_path REGEXP '(${selected_path:regex})'
GROUP BY file_path
ORDER BY cnt DESC
LIMIT 10;
```
For the "files with most modifications" panel:
```sql
SELECT CONVERT(file_path USING utf8) AS file_path,
COUNT(DISTINCT sha) AS modified_num
FROM commits
JOIN commit_files
JOIN repo_commits rc
ON commit_files.commit_sha = rc.commit_sha
AND sha = commit_files.commit_sha
AND $__timeFilter(commits.authored_date)
WHERE repo_id IN (${repo_id})
AND file_path REGEXP '(${selected_path:regex})'
AND $__timeFilter(commits.authored_date)
GROUP BY file_path
ORDER BY modified_num DESC
LIMIT 15;
```
By converting the `file_path` column to use the `utf8` character set, the
character set issue should be resolved, and the metrics should display properly
in the dashboard
<sup>[[1]](https://github.com/apache/incubator-devlake/blob/main/grafana/dashboards/ComponentAndFileLevelMetrics.json)</sup>.
Additionally, ensure that the `commit_files` table contains the `file_path`
column. The schema of the `commit_files` table includes the `file_path` column,
which is defined as a `varchar(255)` field
<sup>[[2]](https://github.com/apache/incubator-devlake-website/blob/main/versioned_docs/version-v0.15/DataModels/DevLakeDomainLayerSchema.md)</sup>.
If you continue to experience issues, verify that the MySQL database used by
DevLake is configured with the correct character set and collation settings.
The default settings are `utf8mb4` for the character set and `utf8mb4_bin` for
the collation
<sup>[[3]](https://github.com/apache/incubator-devlake/blob/main/devops/releases/lake-v0.15.0/docker-compose.yml)</sup>.
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