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# List of metrics reported cluster wide
Each metric includes a label for the server that calculated the metric.
Each metric has a label for the server that generated the metric.
These metrics can be from any MinIO server once per collection.
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| Name | Description |
|:---------------------------------------------|:--------------------------------------------------------------------------------------------------------------------|
| `minio_bucket_objects_size_distribution` | Distribution of object sizes in the bucket, includes label for the bucket name. |
| `minio_bucket_replication_failed_bytes` | Total number of bytes failed at least once to replicate. |
| `minio_bucket_replication_received_bytes` | Total number of bytes replicated to this bucket from another source bucket. |
| `minio_bucket_replication_sent_bytes` | Total number of bytes replicated to the target bucket. |
| `minio_bucket_replication_failed_count` | Total number of replication foperations failed for this bucket. |
| `minio_bucket_usage_object_total` | Total number of objects |
| `minio_bucket_usage_total_bytes` | Total bucket size in bytes |
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| `minio_bucket_quota_total_bytes` | Total bucket quota size in bytes |
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| `minio_bucket_traffic_sent_bytes` | Total s3 bytes sent per bucket |
| `minio_bucket_traffic_received_bytes` | Total s3 bytes received per bucket |
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| `minio_cache_hits_total` | Total number of disk cache hits |
| `minio_cache_missed_total` | Total number of disk cache misses |
| `minio_cache_sent_bytes` | Total number of bytes served from cache |
| `minio_cache_total_bytes` | Total size of cache disk in bytes |
| `minio_cache_usage_info` | Total percentage cache usage, value of 1 indicates high and 0 low, label level is set as well |
| `minio_cache_used_bytes` | Current cache usage in bytes |
| `minio_cluster_capacity_raw_free_bytes` | Total free capacity online in the cluster. |
| `minio_cluster_capacity_raw_total_bytes` | Total capacity online in the cluster. |
| `minio_cluster_capacity_usable_free_bytes` | Total free usable capacity online in the cluster. |
| `minio_cluster_capacity_usable_total_bytes` | Total usable capacity online in the cluster. |
| `minio_cluster_nodes_offline_total` | Total number of MinIO nodes offline. |
| `minio_cluster_nodes_online_total` | Total number of MinIO nodes online. |
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| `minio_cluster_ilm_transitioned_bytes` | Total bytes transitioned to a tier |
| `minio_cluster_ilm_transitioned_objects` | Total number of objects transitioned to a tier |
| `minio_cluster_ilm_transitioned_versions` | Total number of versions transitioned to a tier |
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| `minio_heal_objects_error_total` | Objects for which healing failed in current self healing run |
| `minio_heal_objects_heal_total` | Objects healed in current self healing run |
| `minio_heal_objects_total` | Objects scanned in current self healing run |
| `minio_heal_time_last_activity_nano_seconds` | Time elapsed (in nano seconds) since last self healing activity. This is set to -1 until initial self heal activity |
| `minio_inter_node_traffic_received_bytes` | Total number of bytes received from other peer nodes. |
| `minio_inter_node_traffic_sent_bytes` | Total number of bytes sent to the other peer nodes. |
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| `minio_node_ilm_expiry_pending_tasks` | Current number of pending ILM expiry tasks in the queue. |
| `minio_node_ilm_transition_active_tasks` | Current number of active ILM transition tasks. |
| `minio_node_ilm_transition_pending_tasks` | Current number of pending ILM transition tasks in the queue. |
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| `minio_node_disk_free_bytes` | Total storage available on a disk. |
| `minio_node_disk_total_bytes` | Total storage on a disk. |
| `minio_node_disk_used_bytes` | Total storage used on a disk. |
| `minio_node_file_descriptor_limit_total` | Limit on total number of open file descriptors for the MinIO Server process. |
| `minio_node_file_descriptor_open_total` | Total number of open file descriptors by the MinIO Server process. |
| `minio_node_io_rchar_bytes` | Total bytes read by the process from the underlying storage system including cache, /proc/[pid]/io rchar |
| `minio_node_io_read_bytes` | Total bytes read by the process from the underlying storage system, /proc/[pid]/io read_bytes |
| `minio_node_io_wchar_bytes` | Total bytes written by the process to the underlying storage system including page cache, /proc/[pid]/io wchar |
| `minio_node_io_write_bytes` | Total bytes written by the process to the underlying storage system, /proc/[pid]/io write_bytes |
| `minio_node_process_starttime_seconds` | Start time for MinIO process per node, time in seconds since Unix epoc. |
| `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 |
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| `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 |
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| `minio_s3_requests_inflight_total` | Total number of S3 requests currently in flight |
| `minio_s3_requests_total` | Total number S3 requests |
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| `minio_s3_time_ttfb_seconds_distribution` | Distribution of the time to first byte across API calls. |
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| `minio_s3_traffic_received_bytes` | Total number of s3 bytes received. |
| `minio_s3_traffic_sent_bytes` | Total number of s3 bytes sent |
| `minio_software_commit_info` | Git commit hash for the MinIO release. |
| `minio_software_version_info` | MinIO Release tag for the server |
