Skip to main content

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.
NameDescription
minio_bucket_objects_size_distributionDistribution of object sizes in the bucket, includes label for the bucket name.
minio_bucket_replication_failed_bytesTotal number of bytes failed at least once to replicate.
minio_bucket_replication_pending_bytesTotal bytes pending to replicate.
minio_bucket_replication_received_bytesTotal number of bytes replicated to this bucket from another source bucket.
minio_bucket_replication_sent_bytesTotal number of bytes replicated to the target bucket.
minio_bucket_replication_pending_countTotal number of replication operations pending for this bucket.
minio_bucket_replication_failed_countTotal number of replication foperations failed for this bucket.
minio_bucket_usage_object_totalTotal number of objects
minio_bucket_usage_total_bytesTotal bucket size in bytes
minio_cache_hits_totalTotal number of disk cache hits
minio_cache_missed_totalTotal number of disk cache misses
minio_cache_sent_bytesTotal number of bytes served from cache
minio_cache_total_bytesTotal size of cache disk in bytes
minio_cache_usage_infoTotal percentage cache usage, value of 1 indicates high and 0 low, label level is set as well
minio_cache_used_bytesCurrent cache usage in bytes
minio_cluster_capacity_raw_free_bytesTotal free capacity online in the cluster.
minio_cluster_capacity_raw_total_bytesTotal capacity online in the cluster.
minio_cluster_capacity_usable_free_bytesTotal free usable capacity online in the cluster.
minio_cluster_capacity_usable_total_bytesTotal usable capacity online in the cluster.
minio_cluster_nodes_offline_totalTotal number of MinIO nodes offline.
minio_cluster_nodes_online_totalTotal number of MinIO nodes online.
minio_heal_objects_error_totalObjects for which healing failed in current self healing run
minio_heal_objects_heal_totalObjects healed in current self healing run
minio_heal_objects_totalObjects scanned in current self healing run
minio_heal_time_last_activity_nano_secondsTime elapsed (in nano seconds) since last self healing activity. This is set to -1 until initial self heal activity
minio_inter_node_traffic_received_bytesTotal number of bytes received from other peer nodes.
minio_inter_node_traffic_sent_bytesTotal number of bytes sent to the other peer nodes.
minio_node_disk_free_bytesTotal storage available on a disk.
minio_node_disk_total_bytesTotal storage on a disk.
minio_node_disk_used_bytesTotal storage used on a disk.
minio_node_file_descriptor_limit_totalLimit on total number of open file descriptors for the MinIO Server process.
minio_node_file_descriptor_open_totalTotal number of open file descriptors by the MinIO Server process.
minio_node_io_rchar_bytesTotal bytes read by the process from the underlying storage system including cache, /proc/[pid]/io rchar
minio_node_io_read_bytesTotal bytes read by the process from the underlying storage system, /proc/[pid]/io read_bytes
minio_node_io_wchar_bytesTotal bytes written by the process to the underlying storage system including page cache, /proc/[pid]/io wchar
minio_node_io_write_bytesTotal bytes written by the process to the underlying storage system, /proc/[pid]/io write_bytes
minio_node_process_starttime_secondsStart time for MinIO process per node, time in seconds since Unix epoc.
minio_node_process_uptime_secondsUptime for MinIO process per node in seconds.
minio_node_syscall_read_totalTotal read SysCalls to the kernel. /proc/[pid]/io syscr
minio_node_syscall_write_totalTotal write SysCalls to the kernel. /proc/[pid]/io syscw
minio_s3_requests_error_totalTotal number S3 requests with errors
minio_s3_requests_inflight_totalTotal number of S3 requests currently in flight
minio_s3_requests_totalTotal number S3 requests
minio_s3_time_ttbf_seconds_distributionDistribution of the time to first byte across API calls.
minio_s3_traffic_received_bytesTotal number of s3 bytes received.
minio_s3_traffic_sent_bytesTotal number of s3 bytes sent
minio_software_commit_infoGit commit hash for the MinIO release.
minio_software_version_infoMinIO Release tag for the server