minio/docs/metrics/prometheus/list.md

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.

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
minio_bucket_quota_total_bytes	Total bucket quota size in bytes
minio_bucket_traffic_sent_bytes	Total s3 bytes sent per bucket
minio_bucket_traffic_received_bytes	Total s3 bytes received per bucket
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.
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
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.
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.
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
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.
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