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prometheus: Add S3 4xx and 5xx S3 monitoring (#15052)

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Currently minio_s3_requests_errors_total covers 4xx and 
5xx S3 responses which can be confusing when s3 applications 
sent a lot of HEAD requests with obvious 404 responses or 
when the replication is enabled.

Add 
- minio_s3_requests_4xx_errors_total
- minio_s3_requests_5xx_errors_total

to help users monitor 4xx and 5xx HTTP status codes separately.
This commit is contained in:
Anis Elleuch
2022-06-08 19:22:34 +01:00
committed by GitHub
parent 2420f6c000
commit 5fb420c703
5 changed files with 75 additions and 23 deletions
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4
docs/metrics/prometheus/list.md
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@@ -52,7 +52,9 @@ These metrics can be from any MinIO server once per collection.
| `minio_node_process_uptime_seconds` | Uptime for MinIO process per node in seconds. |
| `minio_node_syscall_read_total` | Total read SysCalls to the kernel. /proc/[pid]/io syscr |
| `minio_node_syscall_write_total` | Total write SysCalls to the kernel. /proc/[pid]/io syscw |
| `minio_s3_requests_error_total` | Total number S3 requests with errors |
| `minio_s3_requests_errors_total` | Total number S3 requests with 4xx and 5xx errors |
| `minio_s3_requests_4xx_errors_total` | Total number S3 requests with 4xx errors |
| `minio_s3_requests_5xx_errors_total` | Total number S3 requests with 5xx errors |
| `minio_s3_requests_inflight_total` | Total number of S3 requests currently in flight |
| `minio_s3_requests_total` | Total number S3 requests |
| `minio_s3_time_ttfb_seconds_distribution` | Distribution of the time to first byte across API calls. |