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Restructure metrics v3 readme for docs use (#20114)

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8
docs/metrics/prometheus/list.md
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@ -157,9 +157,9 @@ For deployments with [bucket](https://min.io/docs/minio/linux/administration/buc
| Name | Description | | Name | Description |
|:-----------------------------------------------|:--------------------------------------------------------------------------------------------------------------------------------------------| |:-----------------------------------------------|:--------------------------------------------------------------------------------------------------------------------------------------------|
| `minio_notify_current_send_in_progress` | Number of concurrent async Send calls active to all targets (deprecated, please use 'minio_notify_target_current_send_in_progress' instead) | | `minio_notify_current_send_in_progress` | Number of concurrent async Send calls active to all targets (deprecated, please use `minio_notify_target_current_send_in_progress` instead) |
| `minio_notify_events_errors_total` | Events that were failed to be sent to the targets (deprecated, please use 'minio_notify_target_failed_events' instead) | | `minio_notify_events_errors_total` | Events that were failed to be sent to the targets (deprecated, please use `minio_notify_target_failed_events` instead) |
| `minio_notify_events_sent_total` | Total number of events sent to the targets (deprecated, please use 'minio_notify_target_total_events' instead) | | `minio_notify_events_sent_total` | Total number of events sent to the targets (deprecated, please use `minio_notify_target_total_events` instead) |
| `minio_notify_events_skipped_total` | Events that were skipped to be sent to the targets due to the in-memory queue being full | | `minio_notify_events_skipped_total` | Events that were skipped to be sent to the targets due to the in-memory queue being full |
| `minio_notify_target_current_send_in_progress` | Number of concurrent async Send calls active to the target | | `minio_notify_target_current_send_in_progress` | Number of concurrent async Send calls active to the target |
| `minio_notify_target_queue_length` | Number of events currently staged in the queue_dir configured for the target. | | `minio_notify_target_queue_length` | Number of events currently staged in the queue_dir configured for the target. |
@ -254,7 +254,7 @@ For deployments with [bucket](https://min.io/docs/minio/linux/administration/buc
| `minio_node_io_read_bytes` | Total bytes read by the process from the underlying storage system, /proc/[pid]/io read_bytes. | | `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_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_io_write_bytes` | Total bytes written by the process to the underlying storage system, /proc/[pid]/io write_bytes. |
| `minio_node_process_cpu_total_seconds` | Total user and system CPU time spent in seconds. | | `minio_node_process_cpu_total_seconds` | Total user and system CPU time spent in seconds by the process. |
| `minio_node_process_resident_memory_bytes` | Resident memory size in bytes. | | `minio_node_process_resident_memory_bytes` | Resident memory size in bytes. |
| `minio_node_process_virtual_memory_bytes` | Virtual memory size in bytes. | | `minio_node_process_virtual_memory_bytes` | Virtual memory size in bytes. |
| `minio_node_process_starttime_seconds` | Start time for MinIO process per node, time in seconds since Unix epoc. | | `minio_node_process_starttime_seconds` | Start time for MinIO process per node, time in seconds since Unix epoc. |

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docs/metrics/v3.md
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@ -1,397 +1,417 @@
# Metrics Version 3 # Metrics Version 3
In metrics version 3, all metrics are available under the endpoint: In metrics version 3, all metrics are available under the following base endpoint:
``` ```
/minio/metrics/v3 /minio/metrics/v3
``` ```
however, a specific path under this is required. To query metrics of a specific type, append the appropriate path to the base endpoint.
Querying the base endpoint returns "404 Not Found."
Metrics are organized into groups at paths **relative** to the top-level endpoint above. Metrics are organized into groups at paths **relative** to the top-level endpoint above.
Metrics are also available using the [MinIO Admin Client](https://min.io/docs/minio/linux/reference/minio-mc-admin.html) and the `mc admin prometheus metrics` command. For more information, see [Metrics and Alerts](https://min.io/docs/minio/linux/operations/monitoring/metrics-and-alerts.html) in the MinIO Documentation.
## Metrics Request Handling ## Metrics Request Handling
Each endpoint below can be queried at different intervals as needed via a scrape configuration in Prometheus or a compatible metrics collection tool. Each endpoint can be queried as needed via a scrape configuration in Prometheus or a compatible metrics collection tool. You should schedule scrape operations so a prior scrape completes before the next one begins.
For ease of configuration, each (non-empty) parent of the path serves all metric endpoints that are at descendant paths. For example, to query all system metrics one needs to only scrape `/minio/metrics/v3/system/`. For ease of configuration, each (non-empty) parent of the path serves all the metric endpoints at its child paths. For example, to query all system metrics scrape `/minio/metrics/v3/system/`.
Some metrics are bucket specific. These will have a `/bucket` component in their path. As the number of buckets can be large, the metrics scrape operation needs to be provided with a specific list of buckets via the `bucket` query parameter. Only metrics for the given buckets will be returned (with the bucket label set). For example to query API metrics for buckets `test1` and `test2`, make a scrape request to `/minio/metrics/v3/api/bucket?buckets=test1,test2`. Each metric endpoint may support multiple child endpoints. For example, the `/v3/system/` metric has multiple child groups as `/v3/system/<child>`. Querying the parent endpoint returns metrics for all child groups. Querying a child group returns only metrics for that child.
Instead of a metrics scrape, it is also possible to list the metrics that would be returned by a path. This is done by adding a `?list` query parameter. The MinIO server will then list all possible metrics that could be returned. During an actual metrics scrape, only available metrics are returned - not all of them. With the `list` query parameter, the output format can be selected - just set the request `Content-Type` to `application/json` for JSON output, or `text/plain` for a simple markdown formatted table. The latter is the default. ### Per-bucket Metrics
## Request, System and Cluster Metrics Metrics with a `/bucket` component in the path return results for each specified bucket in the deployment. These endpoints **require** providing a list of buckets as a `bucket` query parameter. The endpoint then returns only metrics for the given buckets, with the bucket name in a `bucket` label.
At a high level metrics are grouped into three categories, listed in the following sub-sections. The path in each of the tables is relative to the top-level endpoint. For example, to query API metrics for buckets `test1` and `test2`, make a scrape request to `/minio/metrics/v3/api/bucket?buckets=test1,test2`.
### Request metrics ### List Available Metrics
These are metrics about requests served by the (current) node. Instead of a metrics scrape, you can list the metrics that would be returned by a path by adding a `list` query parameter. The MinIO server then lists all available metrics that could be returned. Note that during an actual metrics scrape only metrics with available _values_ are returned. Metrics with null values are omitted from the scrape results.
| Path | Description | To set the output format, set the request `Content-Type` to the desired format. Accepted values are `application/json` for JSON output or `text/plain` for a Markdown-formatted table. The default is Markdown.
|-----------------|--------------------------------------------------|
| `/api/requests` | Metrics over all requests | For example, the the following returns a list of all available bucket metrics:
| `/bucket/api` | Metrics over all requests for a given bucket | ```
| | | /minio/metrics/v3/api/bucket?list
```
## Metric Categories
At a high level, metrics are grouped into categories as described in the following sections. The path in each of the tables is relative to the top-level endpoint. Note that the standard GoCollector metrics are not shown.
### Request metrics
Metrics about requests served by the current node.
| Path | Description |
|-----------------|-----------------------------------------------|
| `/api/requests` | Metrics over all requests. |
| `/bucket/api` | Metrics over all requests for a given bucket. |
#### `/api/requests`
| Name | Description | Labels |
|------------------------------------------------|--------------------------------------------------------------------------------|----------------------------------------------|
| `minio_api_requests_rejected_auth_total` | Total number of requests rejected for auth failure. <br><br>Type: counter | `type`, `pool_index`, `server` |
| `minio_api_requests_rejected_header_total` | Total number of requests rejected for invalid header. <br><br>Type: counter | `type`, `pool_index`, `server` |
| `minio_api_requests_rejected_timestamp_total` | Total number of requests rejected for invalid timestamp. <br><br>Type: counter | `type`, `pool_index`, `server` |
| `minio_api_requests_rejected_invalid_total` | Total number of invalid requests. <br><br>Type: counter | `type`, `pool_index`, `server` |
| `minio_api_requests_waiting_total` | Total number of requests in the waiting queue. <br><br>Type: gauge | `type`, `pool_index`, `server` |
| `minio_api_requests_incoming_total` | Total number of incoming requests. <br><br>Type: gauge | `type`, `pool_index`, `server` |
| `minio_api_requests_inflight_total` | Total number of requests currently in flight. <br><br>Type: gauge | `name`, `type`, `pool_index`, `server` |
| `minio_api_requests_total` | Total number of requests. <br><br>Type: counter | `name`, `type`, `pool_index`, `server` |
| `minio_api_requests_errors_total` | Total number of requests with 4xx or 5xx errors. <br><br>Type: counter | `name`, `type`, `pool_index`, `server` |
| `minio_api_requests_5xx_errors_total` | Total number of requests with 5xx errors. <br><br>Type: counter | `name`, `type`, `pool_index`, `server` |
| `minio_api_requests_4xx_errors_total` | Total number of requests with 4xx errors. <br><br>Type: counter | `name`, `type`, `pool_index`, `server` |
| `minio_api_requests_canceled_total` | Total number of requests canceled by the client. <br><br>Type: counter | `name`, `type`, `pool_index`, `server` |
| `minio_api_requests_ttfb_seconds_distribution` | Distribution of time to first byte across API calls. <br><br>Type: counter | `name`, `type`, `le`, `pool_index`, `server` |
| `minio_api_requests_traffic_sent_bytes` | Total number of bytes sent. <br><br>Type: counter | `type`, `pool_index`, `server` |
| `minio_api_requests_traffic_received_bytes` | Total number of bytes received. <br><br>Type: counter | `type`, `pool_index`, `server` |
#### `/bucket/api`
| Name | Description | Labels |
|----------------------------------------------|-----------------------------------------------------------------------------------------|--------------------------------------------------------|
| `minio_bucket_api_traffic_received_bytes` | Total number of bytes sent for a bucket. <br><br>Type: counter | `bucket`, `type`, `server`, `pool_index` |
| `minio_bucket_api_traffic_sent_bytes` | Total number of bytes received for a bucket. <br><br>Type: counter | `bucket`, `type`, `server`, `pool_index` |
| `minio_bucket_api_inflight_total` | Total number of requests currently in flight for a bucket. <br><br>Type: gauge | `bucket`, `name`, `type`, `server`, `pool_index` |
| `minio_bucket_api_total` | Total number of requests for a bucket. <br><br>Type: counter | `bucket`, `name`, `type`, `server`, `pool_index` |
| `minio_bucket_api_canceled_total` | Total number of requests canceled by the client for a bucket. <br><br>Type: counter | `bucket`, `name`, `type`, `server`, `pool_index` |
| `minio_bucket_api_4xx_errors_total` | Total number of requests with 4xx errors for a bucket. <br><br>Type: counter | `bucket`, `name`, `type`, `server`, `pool_index` |
| `minio_bucket_api_5xx_errors_total` | Total number of requests with 5xx errors for a bucket. <br><br>Type: counter | `bucket`, `name`, `type`, `server`, `pool_index` |
| `minio_bucket_api_ttfb_seconds_distribution` | Distribution of time to first byte across API calls for a bucket. <br><br>Type: counter | `bucket`, `name`, `le`, `type`, `server`, `pool_index` |
### Audit metrics ### Audit metrics
These are metrics about the minio audit functionality Metrics about the MinIO audit functionality.
| Path | Description | | Path | Description |
|----------|----------------------------------------| |----------|-----------------------------------------|
| `/audit` | Metrics related to audit functionality | | `/audit` | Metrics related to audit functionality. |
### ILM metrics #### `/audit`
These are metrics about the minio ILM functionality | Name | Description | Labels |
|-----------------------------------|---------------------------------------------------------------------------------|-----------------------|
| Path | Description | | `minio_audit_failed_messages` | Total number of messages that failed to send since start. <br><br>Type: counter | `target_id`, `server` |
|--------|--------------------------------------| | `minio_audit_target_queue_length` | Number of unsent messages in queue for target. <br><br>Type: gauge | `target_id`, `server` |
| `/ilm` | Metrics related to ILM functionality | | `minio_audit_total_messages` | Total number of messages sent since start. <br><br>Type: counter | `target_id`, `server` |
### Logger webhook metrics
These are metrics about the minio logger webhooks
| Path | Description |
|-------------------|------------------------------------|
| `/logger/webhook` | Metrics related to logger webhooks |
### Notification metrics
These are metrics about the minio notification functionality
| Path | Description |
|----------|------------------------------------------------------|
| `/notification` | Metrics related to notification functionality |
### Scanner metrics
These are metrics about the minio scanner
| Path | Description |
|------------|--------------------------------------|
| `/scanner` | Metrics related to the MinIO scanner |
### System metrics
These are metrics about the minio process and the node.
| Path | Description |
|-----------------------------|---------------------------------------------------|
| `/system/drive` | Metrics about drives on the system |
| `/system/memory` | Metrics about memory on the system |
| `/system/network/internode` | Metrics about internode requests made by the node |
| `/system/process` | Standard process metrics |
| | |
### Debug metrics
These are metrics for debugging
| Path | Description |
|-----------------------------|---------------------------------------------------|
| `/debug/go` | Standard Go lang metrics |
| | |
### Cluster metrics ### Cluster metrics
These present metrics about the whole MinIO cluster. Metrics about an entire MinIO cluster.
| Path | Description | | Path | Description |
|--------------------------|-----------------------------| |--------------------------|--------------------------------|
| `/cluster/health` | Cluster health metrics | | `/cluster/config` | Cluster configuration metrics. |
| `/cluster/usage/objects` | Object statistics | | `/cluster/erasure-set` | Erasure set metrics. |
| `/cluster/usage/buckets` | Object statistics by bucket | | `/cluster/health` | Cluster health metrics. |
| `/cluster/erasure-set` | Erasure set metrics | | `/cluster/iam` | Cluster iam metrics. |
| | | | `/cluster/usage/buckets` | Object statistics by bucket. |
| `/cluster/usage/objects` | Object statistics. |
## Metrics Listing #### `/cluster/config`
Each of the following sub-sections list metrics returned by each of the endpoints. | Name | Description | Labels |
|----------------------------------------|--------------------------------------------------------------|--------|
| `minio_cluster_config_rrs_parity` | Reduced redundancy storage class parity. <br><br>Type: gauge | |
| `minio_cluster_config_standard_parity` | Standard storage class parity. <br><br>Type: gauge | |
The standard metrics group for GoCollector is not shown below. #### `/cluster/erasure-set`
### `/api/requests` | Name | Description | Labels |
|--------------------------------------------------|---------------------------------------------------------------------------------------------------------|---------------------|
| `minio_cluster_erasure_set_overall_write_quorum` | Overall write quorum across pools and sets. <br><br>Type: gauge | |
| `minio_cluster_erasure_set_overall_health` | Overall health across pools and sets (1=healthy, 0=unhealthy). <br><br>Type: gauge | |
| `minio_cluster_erasure_set_read_quorum` | Read quorum for the erasure set in a pool. <br><br>Type: gauge | `pool_id`, `set_id` |
| `minio_cluster_erasure_set_write_quorum` | Write quorum for the erasure set in a pool. <br><br>Type: gauge | `pool_id`, `set_id` |
| `minio_cluster_erasure_set_online_drives_count` | Count of online drives in the erasure set in a pool. <br><br>Type: gauge | `pool_id`, `set_id` |
| `minio_cluster_erasure_set_healing_drives_count` | Count of healing drives in the erasure set in a pool. <br><br>Type: gauge | `pool_id`, `set_id` |
| `minio_cluster_erasure_set_health` | Health of the erasure set in a pool (1=healthy, 0=unhealthy). <br><br>Type: gauge | `pool_id`, `set_id` |
| `minio_cluster_erasure_set_read_tolerance` | Number of drive failures that can be tolerated without disrupting read operations. <br><br>Type: gauge | `pool_id`, `set_id` |
| `minio_cluster_erasure_set_write_tolerance` | Number of drive failures that can be tolerated without disrupting write operations. <br><br>Type: gauge | `pool_id`, `set_id` |
| `minio_cluster_erasure_set_read_health` | Health of the erasure set in a pool for read operations (1=healthy, 0=unhealthy). <br><br>Type: gauge | `pool_id`, `set_id` |
| `minio_cluster_erasure_set_write_health` | Health of the erasure set in a pool for write operations (1=healthy, 0=unhealthy). <br><br>Type: gauge | `pool_id`, `set_id` |
| Name | Type | Help | Labels | #### `/cluster/health`
|------------------------------------------------|-----------|---------------------------------------------------------|----------------------------------|
| `minio_api_requests_rejected_auth_total` | `counter` | Total number of requests rejected for auth failure | `type,pool_index,server` |
| `minio_api_requests_rejected_header_total` | `counter` | Total number of requests rejected for invalid header | `type,pool_index,server` |
| `minio_api_requests_rejected_timestamp_total` | `counter` | Total number of requests rejected for invalid timestamp | `type,pool_index,server` |
| `minio_api_requests_rejected_invalid_total` | `counter` | Total number of invalid requests | `type,pool_index,server` |
| `minio_api_requests_waiting_total` | `gauge` | Total number of requests in the waiting queue | `type,pool_index,server` |
| `minio_api_requests_incoming_total` | `gauge` | Total number of incoming requests | `type,pool_index,server` |
| `minio_api_requests_inflight_total` | `gauge` | Total number of requests currently in flight | `name,type,pool_index,server` |
| `minio_api_requests_total` | `counter` | Total number of requests | `name,type,pool_index,server` |
| `minio_api_requests_errors_total` | `counter` | Total number of requests with (4xx and 5xx) errors | `name,type,pool_index,server` |
| `minio_api_requests_5xx_errors_total` | `counter` | Total number of requests with 5xx errors | `name,type,pool_index,server` |
| `minio_api_requests_4xx_errors_total` | `counter` | Total number of requests with 4xx errors | `name,type,pool_index,server` |
| `minio_api_requests_canceled_total` | `counter` | Total number of requests canceled by the client | `name,type,pool_index,server` |
| `minio_api_requests_ttfb_seconds_distribution` | `counter` | Distribution of time to first byte across API calls | `name,type,le,pool_index,server` |
| `minio_api_requests_traffic_sent_bytes` | `counter` | Total number of bytes sent | `type,pool_index,server` |
| `minio_api_requests_traffic_received_bytes` | `counter` | Total number of bytes received | `type,pool_index,server` |
### `/bucket/api` | Name | Description | Labels |
|----------------------------------------------------|---------------------------------------------------------------------|--------|
| `minio_cluster_health_drives_offline_count` | Count of offline drives in the cluster. <br><br>Type: gauge | |
| `minio_cluster_health_drives_online_count` | Count of online drives in the cluster. <br><br>Type: gauge | |
| `minio_cluster_health_drives_count` | Count of all drives in the cluster. <br><br>Type: gauge | |
| `minio_cluster_health_nodes_offline_count` | Count of offline nodes in the cluster. <br><br>Type: gauge | |
| `minio_cluster_health_nodes_online_count` | Count of online nodes in the cluster. <br><br>Type: gauge | |
| `minio_cluster_health_capacity_raw_total_bytes` | Total cluster raw storage capacity in bytes. <br><br>Type: gauge | |
| `minio_cluster_health_capacity_raw_free_bytes` | Total cluster raw storage free in bytes. <br><br>Type: gauge | |
| `minio_cluster_health_capacity_usable_total_bytes` | Total cluster usable storage capacity in bytes. <br><br>Type: gauge | |
| `minio_cluster_health_capacity_usable_free_bytes` | Total cluster usable storage free in bytes. <br><br>Type: gauge | |
| Name | Type | Help | Labels | #### `/cluster/iam`
|----------------------------------------------|-----------|------------------------------------------------------------------|-----------------------------------------|
| `minio_bucket_api_traffic_received_bytes` | `counter` | Total number of bytes sent for a bucket | `bucket,type,server,pool_index` |
| `minio_bucket_api_traffic_sent_bytes` | `counter` | Total number of bytes received for a bucket | `bucket,type,server,pool_index` |
| `minio_bucket_api_inflight_total` | `gauge` | Total number of requests currently in flight for a bucket | `bucket,name,type,server,pool_index` |
| `minio_bucket_api_total` | `counter` | Total number of requests for a bucket | `bucket,name,type,server,pool_index` |
| `minio_bucket_api_canceled_total` | `counter` | Total number of requests canceled by the client for a bucket | `bucket,name,type,server,pool_index` |
| `minio_bucket_api_4xx_errors_total` | `counter` | Total number of requests with 4xx errors for a bucket | `bucket,name,type,server,pool_index` |
| `minio_bucket_api_5xx_errors_total` | `counter` | Total number of requests with 5xx errors for a bucket | `bucket,name,type,server,pool_index` |
| `minio_bucket_api_ttfb_seconds_distribution` | `counter` | Distribution of time to first byte across API calls for a bucket | `bucket,name,le,type,server,pool_index` |
### `/bucket/replication` | Name | Description | Labels |
|-----------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------|--------|
| `minio_cluster_iam_last_sync_duration_millis` | Last successful IAM data sync duration in milliseconds. <br><br>Type: counter | |
| `minio_cluster_iam_plugin_authn_service_failed_requests_minute` | When plugin authentication is configured, returns failed requests count in the last full minute. <br><br>Type: counter | |
| `minio_cluster_iam_plugin_authn_service_last_fail_seconds` | When plugin authentication is configured, returns time (in seconds) since the last failed request to the service. <br><br>Type: counter | |
| `minio_cluster_iam_plugin_authn_service_last_succ_seconds` | When plugin authentication is configured, returns time (in seconds) since the last successful request to the service. <br><br>Type: counter | |
| `minio_cluster_iam_plugin_authn_service_succ_avg_rtt_ms_minute` | When plugin authentication is configured, returns average round-trip time of successful requests in the last full minute. <br><br>Type: counter | |
| `minio_cluster_iam_plugin_authn_service_succ_max_rtt_ms_minute` | When plugin authentication is configured, returns maximum round-trip time of successful requests in the last full minute. <br><br>Type: counter | |
| `minio_cluster_iam_plugin_authn_service_total_requests_minute` | When plugin authentication is configured, returns total requests count in the last full minute. <br><br>Type: counter | |
| `minio_cluster_iam_since_last_sync_millis` | Time (in milliseconds) since last successful IAM data sync. <br><br>Type: counter | |
| `minio_cluster_iam_sync_failures` | Number of failed IAM data syncs since server start. <br><br>Type: counter | |
| `minio_cluster_iam_sync_successes` | Number of successful IAM data syncs since server start. <br><br>Type: counter | |
| Name | Type | Help | Labels | #### `/cluster/usage/buckets`
|---------------------------------------------------------------------|-----------|---------------------------------------------------------------------------------------------|-------------------------------------------|
| `minio_bucket_replication_last_hour_failed_bytes` | `gauge` | Total number of bytes failed at least once to replicate in the last hour on a bucket | `bucket,server` |
| `minio_bucket_replication_last_hour_failed_count` | `gauge` | Total number of objects which failed replication in the last hour on a bucket | `bucket,server` |
| `minio_bucket_replication_last_minute_failed_bytes` | `gauge` | Total number of bytes failed at least once to replicate in the last full minute on a bucket | `bucket,server` |
| `minio_bucket_replication_last_minute_failed_count` | `gauge` | Total number of objects which failed replication in the last full minute on a bucket | `bucket,server` |
| `minio_bucket_replication_latency_ms` | `gauge` | Replication latency on a bucket in milliseconds | `bucket,operation,range,targetArn,server` |
| `minio_bucket_replication_proxied_delete_tagging_requests_total` | `counter` | Number of DELETE tagging requests proxied to replication target | `bucket,server` |
| `minio_bucket_replication_proxied_get_requests_failures` | `counter` | Number of failures in GET requests proxied to replication target | `bucket,server` |
| `minio_bucket_replication_proxied_get_requests_total` | `counter` | Number of GET requests proxied to replication target | `bucket,server` |
| `minio_bucket_replication_proxied_get_tagging_requests_failures` | `counter` | Number of failures in GET tagging requests proxied to replication target | `bucket,server` |
| `minio_bucket_replication_proxied_get_tagging_requests_total` | `counter` | Number of GET tagging requests proxied to replication target | `bucket,server` |
| `minio_bucket_replication_proxied_head_requests_failures` | `counter` | Number of failures in HEAD requests proxied to replication target | `bucket,server` |
| `minio_bucket_replication_proxied_head_requests_total` | `counter` | Number of HEAD requests proxied to replication target | `bucket,server` |
| `minio_bucket_replication_proxied_put_tagging_requests_failures` | `counter` | Number of failures in PUT tagging requests proxied to replication target | `bucket,server` |
| `minio_bucket_replication_proxied_put_tagging_requests_total` | `counter` | Number of PUT tagging requests proxied to replication target | `bucket,server` |
| `minio_bucket_replication_sent_bytes` | `counter` | Total number of bytes replicated to the target | `bucket,server` |
| `minio_bucket_replication_sent_count` | `counter` | Total number of objects replicated to the target | `bucket,server` |
| `minio_bucket_replication_total_failed_bytes` | `counter` | Total number of bytes failed at least once to replicate since server start | `bucket,server` |
| `minio_bucket_replication_total_failed_count` | `counter` | Total number of objects which failed replication since server start | `bucket,server` |
| `minio_bucket_replication_proxied_delete_tagging_requests_failures` | `counter` | Number of failures in DELETE tagging requests proxied to replication target | `bucket,server` |
### `/audit` | Name | Description | Labels |
|-----------------------------------------------------------------|--------------------------------------------------------------------------------------|-------------------|
| `minio_cluster_usage_buckets_since_last_update_seconds` | Time since last update of usage metrics in seconds. <br><br>Type: gauge | |
| `minio_cluster_usage_buckets_total_bytes` | Total bucket size in bytes. <br><br>Type: gauge | `bucket` |
| `minio_cluster_usage_buckets_objects_count` | Total object count in bucket. <br><br>Type: gauge | `bucket` |
| `minio_cluster_usage_buckets_versions_count` | Total object versions count in bucket, including delete markers. <br><br>Type: gauge | `bucket` |
| `minio_cluster_usage_buckets_delete_markers_count` | Total delete markers count in bucket. <br><br>Type: gauge | `bucket` |
| `minio_cluster_usage_buckets_quota_total_bytes` | Total bucket quota in bytes. <br><br>Type: gauge | `bucket` |
| `minio_cluster_usage_buckets_object_size_distribution` | Bucket object size distribution. <br><br>Type: gauge | `range`, `bucket` |
| `minio_cluster_usage_buckets_object_version_count_distribution` | Bucket object version count distribution. <br><br>Type: gauge | `range`, `bucket` |
| Name | Type | Help | Labels | #### `/cluster/usage/objects`
|-----------------------------------|-----------|----------------------------------------------------------|--------------------|
| `minio_audit_failed_messages` | `counter` | Total number of messages that failed to send since start | `target_id,server` |
| `minio_audit_target_queue_length` | `gauge` | Number of unsent messages in queue for target | `target_id,server` |
| `minio_audit_total_messages` | `counter` | Total number of messages sent since start | `target_id,server` |
### `/system/drive` | Name | Description | Labels |
|----------------------------------------------------------|------------------------------------------------------------------------------------|---------|
| `minio_cluster_usage_objects_since_last_update_seconds` | Time since last update of usage metrics in seconds. <br><br>Type: gauge | |
| `minio_cluster_usage_objects_total_bytes` | Total cluster usage in bytes. <br><br>Type: gauge | |
| `minio_cluster_usage_objects_count` | Total cluster objects count. <br><br>Type: gauge | |
| `minio_cluster_usage_objects_versions_count` | Total cluster object versions count, including delete markers. <br><br>Type: gauge | |
| `minio_cluster_usage_objects_delete_markers_count` | Total cluster delete markers count. <br><br>Type: gauge | |
| `minio_cluster_usage_objects_buckets_count` | Total cluster buckets count. <br><br>Type: gauge | |
| `minio_cluster_usage_objects_size_distribution` | Cluster object size distribution. <br><br>Type: gauge | `range` |
| `minio_cluster_usage_objects_version_count_distribution` | Cluster object version count distribution. <br><br>Type: gauge | `range` |
| Name | Type | Help | Labels | ### Debug metrics
|------------------------------------------------|-----------|--------------------------------------------------------------------|-----------------------------------------------------|
| `minio_system_drive_used_bytes` | `gauge` | Total storage used on a drive in bytes | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_free_bytes` | `gauge` | Total storage free on a drive in bytes | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_total_bytes` | `gauge` | Total storage available on a drive in bytes | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_used_inodes` | `gauge` | Total used inodes on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_free_inodes` | `gauge` | Total free inodes on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_total_inodes` | `gauge` | Total inodes available on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_timeout_errors_total` | `counter` | Total timeout errors on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_io_errors_total` | `counter` | Total I/O errors on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_availability_errors_total` | `counter` | Total availability errors (I/O errors, timeouts) on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_waiting_io` | `gauge` | Total waiting I/O operations on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_api_latency_micros` | `gauge` | Average last minute latency in µs for drive API storage operations | `drive,api,set_index,drive_index,pool_index,server` |
| `minio_system_drive_offline_count` | `gauge` | Count of offline drives | `pool_index,server` |
| `minio_system_drive_online_count` | `gauge` | Count of online drives | `pool_index,server` |
| `minio_system_drive_count` | `gauge` | Count of all drives | `pool_index,server` |
| `minio_system_drive_health` | `gauge` | Drive health (0 = offline, 1 = healthy, 2 = healing) | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_reads_per_sec` | `gauge` | Reads per second on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_reads_kb_per_sec` | `gauge` | Kilobytes read per second on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_reads_await` | `gauge` | Average time for read requests served on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_writes_per_sec` | `gauge` | Writes per second on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_writes_kb_per_sec` | `gauge` | Kilobytes written per second on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_writes_await` | `gauge` | Average time for write requests served on a drive | `drive,set_index,drive_index,pool_index,server` |
| `minio_system_drive_perc_util` | `gauge` | Percentage of time the disk was busy | `drive,set_index,drive_index,pool_index,server` |
### `/system/memory` Standard Go runtime metrics.
| Name | Type | Help | Labels | | Path | Description |
|----------------------------------|---------|------------------------------------|----------| |-------------|---------------------|
| `minio_system_memory_used` | `gauge` | Used memory on the node | `server` | | `/debug/go` | Go runtime metrics. |
| `minio_system_memory_used_perc` | `gauge` | Used memory percentage on the node | `server` |
| `minio_system_memory_free` | `gauge` | Free memory on the node | `server` |
| `minio_system_memory_total` | `gauge` | Total memory on the node | `server` |
| `minio_system_memory_buffers` | `gauge` | Buffers memory on the node | `server` |
| `minio_system_memory_cache` | `gauge` | Cache memory on the node | `server` |
| `minio_system_memory_shared` | `gauge` | Shared memory on the node | `server` |
| `minio_system_memory_available` | `gauge` | Available memory on the node | `server` |
### `/system/cpu` ### ILM metrics
| Name | Type | Help | Labels | Metrics about the MinIO ILM functionality.
|-------------------------------|---------|------------------------------------|----------|
| `minio_system_cpu_avg_idle` | `gauge` | Average CPU idle time | `server` |
| `minio_system_cpu_avg_iowait` | `gauge` | Average CPU IOWait time | `server` |
| `minio_system_cpu_load` | `gauge` | CPU load average 1min | `server` |
| `minio_system_cpu_load_perc` | `gauge` | CPU load average 1min (percentage) | `server` |
| `minio_system_cpu_nice` | `gauge` | CPU nice time | `server` |
| `minio_system_cpu_steal` | `gauge` | CPU steal time | `server` |
| `minio_system_cpu_system` | `gauge` | CPU system time | `server` |
| `minio_system_cpu_user` | `gauge` | CPU user time | `server` |
### `/system/network/internode` | Path | Description |
|--------|---------------------------------------|
| `/ilm` | Metrics related to ILM functionality. |
| Name | Type | Help | Labels | #### `/ilm`
|------------------------------------------------------|-----------|----------------------------------------------------------|---------------------|
| `minio_system_network_internode_errors_total` | `counter` | Total number of failed internode calls | `server,pool_index` |
| `minio_system_network_internode_dial_errors_total` | `counter` | Total number of internode TCP dial timeouts and errors | `server,pool_index` |
| `minio_system_network_internode_dial_avg_time_nanos` | `gauge` | Average dial time of internodes TCP calls in nanoseconds | `server,pool_index` |
| `minio_system_network_internode_sent_bytes_total` | `counter` | Total number of bytes sent to other peer nodes | `server,pool_index` |
| `minio_system_network_internode_recv_bytes_total` | `counter` | Total number of bytes received from other peer nodes | `server,pool_index` |
### `/system/process` | Name | Description | Labels |
|-------------------------------------------------------|---------------------------------------------------------------------------------------------------|----------|
| `minio_cluster_ilm_expiry_pending_tasks` | Number of pending ILM expiry tasks in the queue. <br><br>Type: gauge | `server` |
| `minio_cluster_ilm_transition_active_tasks` | Number of active ILM transition tasks. <br><br>Type: gauge | `server` |
| `minio_cluster_ilm_transition_pending_tasks` | Number of pending ILM transition tasks in the queue. <br><br>Type: gauge | `server` |
| `minio_cluster_ilm_transition_missed_immediate_tasks` | Number of missed immediate ILM transition tasks. <br><br>Type: counter | `server` |
| `minio_cluster_ilm_versions_scanned` | Total number of object versions checked for ILM actions since server start. <br><br>Type: counter | `server` |
| Name | Type | Help | Labels | ### Logger webhook metrics
|----------------------------------------------------|-----------|----------------------------------------------------------------------------------------------------------------|----------|
| `minio_system_process_locks_read_total` | `gauge` | Number of current READ locks on this peer | `server` |
| `minio_system_process_locks_write_total` | `gauge` | Number of current WRITE locks on this peer | `server` |
| `minio_system_process_cpu_total_seconds` | `counter` | Total user and system CPU time spent in seconds | `server` |
| `minio_system_process_go_routine_total` | `gauge` | Total number of go routines running | `server` |
| `minio_system_process_io_rchar_bytes` | `counter` | Total bytes read by the process from the underlying storage system including cache, /proc/[pid]/io rchar | `server` |
| `minio_system_process_io_read_bytes` | `counter` | Total bytes read by the process from the underlying storage system, /proc/[pid]/io read_bytes | `server` |
| `minio_system_process_io_wchar_bytes` | `counter` | Total bytes written by the process to the underlying storage system including page cache, /proc/[pid]/io wchar | `server` |
| `minio_system_process_io_write_bytes` | `counter` | Total bytes written by the process to the underlying storage system, /proc/[pid]/io write_bytes | `server` |
| `minio_system_process_start_time_seconds` | `gauge` | Start time for MinIO process in seconds since Unix epoc | `server` |
| `minio_system_process_uptime_seconds` | `gauge` | Uptime for MinIO process in seconds | `server` |
| `minio_system_process_file_descriptor_limit_total` | `gauge` | Limit on total number of open file descriptors for the MinIO Server process | `server` |
| `minio_system_process_file_descriptor_open_total` | `gauge` | Total number of open file descriptors by the MinIO Server process | `server` |
| `minio_system_process_syscall_read_total` | `counter` | Total read SysCalls to the kernel. /proc/[pid]/io syscr | `server` |
| `minio_system_process_syscall_write_total` | `counter` | Total write SysCalls to the kernel. /proc/[pid]/io syscw | `server` |
| `minio_system_process_resident_memory_bytes` | `gauge` | Resident memory size in bytes | `server` |
| `minio_system_process_virtual_memory_bytes` | `gauge` | Virtual memory size in bytes | `server` |
| `minio_system_process_virtual_memory_max_bytes` | `gauge` | Maximum virtual memory size in bytes | `server` |
### `/cluster/health` Metrics about MinIO logger webhooks.
| Name | Type | Help | Labels | | Path | Description |
|----------------------------------------------------|---------|------------------------------------------------|--------| |-------------------|-------------------------------------|
| `minio_cluster_health_drives_offline_count` | `gauge` | Count of offline drives in the cluster | | | `/logger/webhook` | Metrics related to logger webhooks. |
| `minio_cluster_health_drives_online_count` | `gauge` | Count of online drives in the cluster | |
| `minio_cluster_health_drives_count` | `gauge` | Count of all drives in the cluster | |
| `minio_cluster_health_nodes_offline_count` | `gauge` | Count of offline nodes in the cluster | |
| `minio_cluster_health_nodes_online_count` | `gauge` | Count of online nodes in the cluster | |
| `minio_cluster_health_capacity_raw_total_bytes` | `gauge` | Total cluster raw storage capacity in bytes | |
| `minio_cluster_health_capacity_raw_free_bytes` | `gauge` | Total cluster raw storage free in bytes | |
| `minio_cluster_health_capacity_usable_total_bytes` | `gauge` | Total cluster usable storage capacity in bytes | |
| `minio_cluster_health_capacity_usable_free_bytes` | `gauge` | Total cluster usable storage free in bytes | |
### `/cluster/config` #### `/logger/webhook`
| Name | Type | Help | Labels | | Name | Description | Labels |
|----------------------------------------|---------|------------------------------------------------|--------| |-----------------------------------------|---------------------------------------------------------------------|------------------------------|
| `minio_cluster_config_rrs_parity` | `gauge` | Reduced redundancy storage class parity | | | `minio_logger_webhook_failed_messages` | Number of messages that failed to send. <br><br>Type: counter | `server`, `name`, `endpoint` |
| `minio_cluster_config_standard_parity` | `gauge` | Standard storage class parity | | | `minio_logger_webhook_queue_length` | Webhook queue length. <br><br>Type: gauge | `server`, `name`, `endpoint` |
| `minio_logger_webhook_total_message` | Total number of messages sent to this target. <br><br>Type: counter | `server`, `name`, `endpoint` |
### `/cluster/usage/objects` ### Notification metrics
| Name | Type | Help | Labels | Metrics about the MinIO notification functionality.
|----------------------------------------------------------|---------|----------------------------------------------------------------|---------|
| `minio_cluster_usage_objects_since_last_update_seconds` | `gauge` | Time since last update of usage metrics in seconds | |
| `minio_cluster_usage_objects_total_bytes` | `gauge` | Total cluster usage in bytes | |
| `minio_cluster_usage_objects_count` | `gauge` | Total cluster objects count | |
| `minio_cluster_usage_objects_versions_count` | `gauge` | Total cluster object versions (including delete markers) count | |
| `minio_cluster_usage_objects_delete_markers_count` | `gauge` | Total cluster delete markers count | |
| `minio_cluster_usage_objects_buckets_count` | `gauge` | Total cluster buckets count | |
| `minio_cluster_usage_objects_size_distribution` | `gauge` | Cluster object size distribution | `range` |
| `minio_cluster_usage_objects_version_count_distribution` | `gauge` | Cluster object version count distribution | `range` |
### `/cluster/usage/buckets` | Path | Description |
|-----------------|------------------------------------------------|
| `/notification` | Metrics related to notification functionality. |
| Name | Type | Help | Labels | #### `/notification`
|-----------------------------------------------------------------|---------|------------------------------------------------------------------|----------------|
| `minio_cluster_usage_buckets_since_last_update_seconds` | `gauge` | Time since last update of usage metrics in seconds | |
| `minio_cluster_usage_buckets_total_bytes` | `gauge` | Total bucket size in bytes | `bucket` |
| `minio_cluster_usage_buckets_objects_count` | `gauge` | Total objects count in bucket | `bucket` |
| `minio_cluster_usage_buckets_versions_count` | `gauge` | Total object versions (including delete markers) count in bucket | `bucket` |
| `minio_cluster_usage_buckets_delete_markers_count` | `gauge` | Total delete markers count in bucket | `bucket` |
| `minio_cluster_usage_buckets_quota_total_bytes` | `gauge` | Total bucket quota in bytes | `bucket` |
| `minio_cluster_usage_buckets_object_size_distribution` | `gauge` | Bucket object size distribution | `range,bucket` |
| `minio_cluster_usage_buckets_object_version_count_distribution` | `gauge` | Bucket object version count distribution | `range,bucket` |
### `/cluster/erasure-set` | Name | Description | Labels |
|-----------------------------------------------|-------------------------------------------------------------------------------------------------------|----------|
| `minio_notification_current_send_in_progress` | Number of concurrent async Send calls active to all targets. <br><br>Type: counter | `server` |
| `minio_notification_events_errors_total` | Total number of events that failed to send to the targets. <br><br>Type: counter | `server` |
| `minio_notification_events_sent_total` | Total number of events sent to the targets. <br><br>Type: counter | `server` |
| `minio_notification_events_skipped_total` | Number of events not sent to the targets due to the in-memory queue being full. <br><br>Type: counter | `server` |
| Name | Type | Help | Labels | ### Replication metrics
|--------------------------------------------------|---------|-----------------------------------------------------------------------------------|------------------|
| `minio_cluster_erasure_set_overall_write_quorum` | `gauge` | Overall write quorum across pools and sets | |
| `minio_cluster_erasure_set_overall_health` | `gauge` | Overall health across pools and sets (1=healthy, 0=unhealthy) | |
| `minio_cluster_erasure_set_read_quorum` | `gauge` | Read quorum for the erasure set in a pool | `pool_id,set_id` |
| `minio_cluster_erasure_set_write_quorum` | `gauge` | Write quorum for the erasure set in a pool | `pool_id,set_id` |
| `minio_cluster_erasure_set_online_drives_count` | `gauge` | Count of online drives in the erasure set in a pool | `pool_id,set_id` |
| `minio_cluster_erasure_set_healing_drives_count` | `gauge` | Count of healing drives in the erasure set in a pool | `pool_id,set_id` |
| `minio_cluster_erasure_set_health` | `gauge` | Health of the erasure set in a pool (1=healthy, 0=unhealthy) | `pool_id,set_id` |
| `minio_cluster_erasure_set_read_tolerance` | `gauge` | No of drive failures that can be tolerated without disrupting read operations | `pool_id,set_id` |
| `minio_cluster_erasure_set_write_tolerance` | `gauge` | No of drive failures that can be tolerated without disrupting write operations | `pool_id,set_id` |
| `minio_cluster_erasure_set_read_health` | `gauge` | Health of the erasure set in a pool for read operations (1=healthy, 0=unhealthy) | `pool_id,set_id` |
| `minio_cluster_erasure_set_write_health` | `gauge` | Health of the erasure set in a pool for write operations (1=healthy, 0=unhealthy) | `pool_id,set_id` |
### `/cluster/iam` Metrics about MinIO site and bucket replication.
| Name | Type | Help | Labels | | Path | Description |
|-----------------------------------------------------------------|-----------|--------------------------------------------------------------------------------------------------------------------------|--------| |-----------------------|----------------------------------------|
| `minio_cluster_iam_last_sync_duration_millis` | `counter` | Last successful IAM data sync duration in milliseconds | | | `/bucket/replication` | Metrics related to bucket replication. |
| `minio_cluster_iam_plugin_authn_service_failed_requests_minute` | `counter` | When plugin authentication is configured, returns failed requests count in the last full minute | | | `/replication` | Metrics related to site replication. |
| `minio_cluster_iam_plugin_authn_service_last_fail_seconds` | `counter` | When plugin authentication is configured, returns time (in seconds) since the last failed request to the service | |
| `minio_cluster_iam_plugin_authn_service_last_succ_seconds` | `counter` | When plugin authentication is configured, returns time (in seconds) since the last successful request to the service | |
| `minio_cluster_iam_plugin_authn_service_succ_avg_rtt_ms_minute` | `counter` | When plugin authentication is configured, returns average round-trip-time of successful requests in the last full minute | |
| `minio_cluster_iam_plugin_authn_service_succ_max_rtt_ms_minute` | `counter` | When plugin authentication is configured, returns maximum round-trip-time of successful requests in the last full minute | |
| `minio_cluster_iam_plugin_authn_service_total_requests_minute` | `counter` | When plugin authentication is configured, returns total requests count in the last full minute | |
| `minio_cluster_iam_since_last_sync_millis` | `counter` | Time (in milliseconds) since last successful IAM data sync | |
| `minio_cluster_iam_sync_failures` | `counter` | Number of failed IAM data syncs since server start | |
| `minio_cluster_iam_sync_successes` | `counter` | Number of successful IAM data syncs since server start | |
### `/logger/webhook` #### `/replication`
| Name | Type | Help | Labels | | Name | Description | Labels |
|-----------------------------------------|-----------|----------------------------------------------|------------------------| |---------------------------------------------------|---------------------------------------------------------------------------------------------|----------|
| `minio_logger_webhook_failed_messages` | `counter` | Number of messages that failed to send | `server,name,endpoint` | | `minio_replication_average_active_workers` | Average number of active replication workers. <br><br>Type: gauge | `server` |
| `minio_logger_webhook_queue_length` | `gauge` | Webhook queue length | `server,name,endpoint` | | `minio_replication_average_queued_bytes` | Average number of bytes queued for replication since server start. <br><br>Type: gauge | `server` |
| `minio_logger_webhook_total_message` | `counter` | Total number of messages sent to this target | `server,name,endpoint` | | `minio_replication_average_queued_count` | Average number of objects queued for replication since server start. <br><br>Type: gauge | `server` |
| `minio_replication_average_data_transfer_rate` | Average replication data transfer rate in bytes/sec. <br><br>Type: gauge | `server` |
| `minio_replication_current_active_workers` | Total number of active replication workers. <br><br>Type: gauge | `server` |
| `minio_replication_current_data_transfer_rate` | Current replication data transfer rate in bytes/sec. <br><br>Type: gauge | `server` |
| `minio_replication_last_minute_queued_bytes` | Number of bytes queued for replication in the last full minute. <br><br>Type: gauge | `server` |
| `minio_replication_last_minute_queued_count` | Number of objects queued for replication in the last full minute. <br><br>Type: gauge | `server` |
| `minio_replication_max_active_workers` | Maximum number of active replication workers seen since server start. <br><br>Type: gauge | `server` |
| `minio_replication_max_queued_bytes` | Maximum number of bytes queued for replication since server start. <br><br>Type: gauge | `server` |
| `minio_replication_max_queued_count` | Maximum number of objects queued for replication since server start. <br><br>Type: gauge | `server` |
| `minio_replication_max_data_transfer_rate` | Maximum replication data transfer rate in bytes/sec since server start. <br><br>Type: gauge | `server` |
### `/replication` #### `/bucket/replication`
| Name | Type | Help | Labels | | Name | Description | Labels |
|---------------------------------------------------|---------|-----------------------------------------------------------------------------|----------| |---------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-------------------------------------------------------|
| `minio_replication_average_active_workers` | `gauge` | Average number of active replication workers | `server` | | `minio_bucket_replication_last_hour_failed_bytes` | Total number of bytes on a bucket which failed to replicate at least once in the last hour. <br><br>Type: gauge | `bucket`, `server` |
| `minio_replication_average_queued_bytes` | `gauge` | Average number of bytes queued for replication since server start | `server` | | `minio_bucket_replication_last_hour_failed_count` | Total number of objects on a bucket which failed to replicate in the last hour. <br><br>Type: gauge | `bucket`, `server` |
| `minio_replication_average_queued_count` | `gauge` | Average number of objects queued for replication since server start | `server` | | `minio_bucket_replication_last_minute_failed_bytes` | Total number of bytes on a bucket which failed at least once in the last full minute. <br><br>Type: gauge | `bucket`, `server` |
| `minio_replication_average_data_transfer_rate` | `gauge` | Average replication data transfer rate in bytes/sec | `server` | | `minio_bucket_replication_last_minute_failed_count` | Total number of objects on a bucket which failed to replicate in the last full minute. <br><br>Type: gauge | `bucket`, `server` |
| `minio_replication_current_active_workers` | `gauge` | Total number of active replication workers | `server` | | `minio_bucket_replication_latency_ms` | Replication latency on a bucket in milliseconds. <br><br>Type: gauge | `bucket`, `operation`, `range`, `targetArn`, `server` |
| `minio_replication_current_data_transfer_rate` | `gauge` | Current replication data transfer rate in bytes/sec | `server` | | `minio_bucket_replication_proxied_delete_tagging_requests_total` | Number of DELETE tagging requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
| `minio_replication_last_minute_queued_bytes` | `gauge` | Number of bytes queued for replication in the last full minute | `server` | | `minio_bucket_replication_proxied_get_requests_failures` | Number of failures in GET requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
| `minio_replication_last_minute_queued_count` | `gauge` | Number of objects queued for replication in the last full minute | `server` | | `minio_bucket_replication_proxied_get_requests_total` | Number of GET requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
| `minio_replication_max_active_workers` | `gauge` | Maximum number of active replication workers seen since server start | `server` | | `minio_bucket_replication_proxied_get_tagging_requests_failures` | Number of failures in GET tagging requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
| `minio_replication_max_queued_bytes` | `gauge` | Maximum number of bytes queued for replication since server start | `server` | | `minio_bucket_replication_proxied_get_tagging_requests_total` | Number of GET tagging requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
| `minio_replication_max_queued_count` | `gauge` | Maximum number of objects queued for replication since server start | `server` | | `minio_bucket_replication_proxied_head_requests_failures` | Number of failures in HEAD requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
| `minio_replication_max_data_transfer_rate` | `gauge` | Maximum replication data transfer rate in bytes/sec seen since server start | `server` | | `minio_bucket_replication_proxied_head_requests_total` | Number of HEAD requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
| `minio_bucket_replication_proxied_put_tagging_requests_failures` | Number of failures in PUT tagging requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
| `minio_bucket_replication_proxied_put_tagging_requests_total` | Number of PUT tagging requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
| `minio_bucket_replication_sent_bytes` | Total number of bytes replicated to the target. <br><br>Type: counter | `bucket`, `server` |
| `minio_bucket_replication_sent_count` | Total number of objects replicated to the target. <br><br>Type: counter | `bucket`, `server` |
| `minio_bucket_replication_total_failed_bytes` | Total number of bytes failed to replicate at least once since server start. <br><br>Type: counter | `bucket`, `server` |
| `minio_bucket_replication_total_failed_count` | Total number of objects that failed to replicate since server start. <br><br>Type: counter | `bucket`, `server` |
| `minio_bucket_replication_proxied_delete_tagging_requests_failures` | Number of failures in DELETE tagging requests proxied to replication target. <br><br>Type: counter | `bucket`, `server` |
### `/notification` ### Scanner metrics
| Name | Type | Help | Labels | Metrics about the MinIO scanner.
|-----------------------------------------------|-----------|------------------------------------------------------------------------------------------|----------|
| `minio_notification_current_send_in_progress` | `counter` | Number of concurrent async Send calls active to all targets | `server` |
| `minio_notification_events_errors_total` | `counter` | Events that were failed to be sent to the targets | `server` |
| `minio_notification_events_sent_total` | `counter` | Total number of events sent to the targets | `server` |
| `minio_notification_events_skipped_total` | `counter` | Events that were skipped to be sent to the targets due to the in-memory queue being full | `server` |
### `/scanner` | Path | Description |
|------------|---------------------------------------|
| `/scanner` | Metrics related to the MinIO scanner. |
| Name | Type | Help | Labels | #### `/scanner`
|--------------------------------------------|-----------|------------------------------------------------------------|----------|
| `minio_scanner_bucket_scans_finished` | `counter` | Total number of bucket scans finished since server start | `server` |
| `minio_scanner_bucket_scans_started` | `counter` | Total number of bucket scans started since server start | `server` |
| `minio_scanner_directories_scanned` | `counter` | Total number of directories scanned since server start | `server` |
| `minio_scanner_last_activity_seconds` | `gauge` | Time elapsed (in seconds) since last scan activity | `server` |
| `minio_scanner_objects_scanned` | `counter` | Total number of unique objects scanned since server start | `server` |
| `minio_scanner_versions_scanned` | `counter` | Total number of object versions scanned since server start | `server` |
### `/ilm` | Name | Description | Labels |
|--------------------------------------------|-----------------------------------------------------------------------------------|----------|
| `minio_scanner_bucket_scans_finished` | Total number of bucket scans completed since server start. <br><br>Type: counter | `server` |
| `minio_scanner_bucket_scans_started` | Total number of bucket scans started since server start. <br><br>Type: counter | `server` |
| `minio_scanner_directories_scanned` | Total number of directories scanned since server start. <br><br>Type: counter | `server` |
| `minio_scanner_last_activity_seconds` | Time elapsed (in seconds) since last scan activity. <br><br>Type: gauge | `server` |
| `minio_scanner_objects_scanned` | Total number of unique objects scanned since server start. <br><br>Type: counter | `server` |
| `minio_scanner_versions_scanned` | Total number of object versions scanned since server start. <br><br>Type: counter | `server` |
| Name | Type | Help | Labels | ### System metrics
|-------------------------------------------------------|-----------|----------------------------------------------------------------------------|----------|
| `minio_cluster_ilm_expiry_pending_tasks` | `gauge` | Number of pending ILM expiry tasks in the queue | `server` | Metrics about the MinIO process and the node.
| `minio_cluster_ilm_transition_active_tasks` | `gauge` | Number of active ILM transition tasks | `server` |
| `minio_cluster_ilm_transition_pending_tasks` | `gauge` | Number of pending ILM transition tasks in the queue | `server` | | Path | Description |
| `minio_cluster_ilm_transition_missed_immediate_tasks` | `counter` | Number of missed immediate ILM transition tasks | `server` | |-----------------------------|----------------------------------------------------|
| `minio_cluster_ilm_versions_scanned` | `counter` | Total number of object versions checked for ILM actions since server start | `server` | | `/system/cpu` | Metrics about CPUs on the system. |
| `/system/drive` | Metrics about drives on the system. |
| `/system/network/internode` | Metrics about internode requests made by the node. |
| `/system/memory` | Metrics about memory on the system. |
| `/system/process` | Standard process metrics. |
#### `/system/drive`
| Name | Description | Labels |
|------------------------------------------------|-----------------------------------------------------------------------------------------|--------------------------------------------------------------------|
| `minio_system_drive_used_bytes` | Total storage used on a drive in bytes. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_free_bytes` | Total storage free on a drive in bytes. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_total_bytes` | Total storage available on a drive in bytes. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_used_inodes` | Total used inodes on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_free_inodes` | Total free inodes on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_total_inodes` | Total inodes available on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_timeout_errors_total` | Total timeout errors on a drive. <br><br>Type: counter | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_io_errors_total` | Total I/O errors on a drive. <br><br>Type: counter | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_availability_errors_total` | Total availability errors (I/O errors, timeouts) on a drive. <br><br>Type: counter | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_waiting_io` | Total waiting I/O operations on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_api_latency_micros` | Average last minute latency in µs for drive API storage operations. <br><br>Type: gauge | `drive`, `api`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_offline_count` | Count of offline drives. <br><br>Type: gauge | `pool_index`, `server` |
| `minio_system_drive_online_count` | Count of online drives. <br><br>Type: gauge | `pool_index`, `server` |
| `minio_system_drive_count` | Count of all drives. <br><br>Type: gauge | `pool_index`, `server` |
| `minio_system_drive_health` | Drive health (0 = offline, 1 = healthy, 2 = healing). <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_reads_per_sec` | Reads per second on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_reads_kb_per_sec` | Kilobytes read per second on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_reads_await` | Average time for read requests served on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_writes_per_sec` | Writes per second on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_writes_kb_per_sec` | Kilobytes written per second on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_writes_await` | Average time for write requests served on a drive. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
| `minio_system_drive_perc_util` | Percentage of time the disk was busy. <br><br>Type: gauge | `drive`, `set_index`, `drive_index`, `pool_index`, `server` |
#### `/system/memory`
| Name | Description | Labels |
|----------------------------------|---------------------------------------------------------|----------|
| `minio_system_memory_used` | Used memory on the node. <br><br>Type: gauge | `server` |
| `minio_system_memory_used_perc` | Used memory percentage on the node. <br><br>Type: gauge | `server` |
| `minio_system_memory_free` | Free memory on the node. <br><br>Type: gauge | `server` |
| `minio_system_memory_total` | Total memory on the node. <br><br>Type: gauge | `server` |
| `minio_system_memory_buffers` | Buffers memory on the node. <br><br>Type: gauge | `server` |
| `minio_system_memory_cache` | Cache memory on the node. <br><br>Type: gauge | `server` |
| `minio_system_memory_shared` | Shared memory on the node. <br><br>Type: gauge | `server` |
| `minio_system_memory_available` | Available memory on the node. <br><br>Type: gauge | `server` |
#### `/system/cpu`
| Name | Description | Labels |
|-------------------------------|---------------------------------------------------------|----------|
| `minio_system_cpu_avg_idle` | Average CPU idle time. <br><br>Type: gauge | `server` |
| `minio_system_cpu_avg_iowait` | Average CPU IOWait time. <br><br>Type: gauge | `server` |
| `minio_system_cpu_load` | CPU load average 1min. <br><br>Type: gauge | `server` |
| `minio_system_cpu_load_perc` | CPU load average 1min (percentage). <br><br>Type: gauge | `server` |
| `minio_system_cpu_nice` | CPU nice time. <br><br>Type: gauge | `server` |
| `minio_system_cpu_steal` | CPU steal time. <br><br>Type: gauge | `server` |
| `minio_system_cpu_system` | CPU system time. <br><br>Type: gauge | `server` |
| `minio_system_cpu_user` | CPU user time. <br><br>Type: gauge | `server` |
#### `/system/network/internode`
| Name | Description | Labels |
|------------------------------------------------------|-------------------------------------------------------------------------------|------------------------|
| `minio_system_network_internode_errors_total` | Total number of failed internode calls. <br><br>Type: counter | `server`, `pool_index` |
| `minio_system_network_internode_dial_errors_total` | Total number of internode TCP dial timeouts and errors. <br><br>Type: counter | `server`, `pool_index` |
| `minio_system_network_internode_dial_avg_time_nanos` | Average dial time of internodes TCP calls in nanoseconds. <br><br>Type: gauge | `server`, `pool_index` |
| `minio_system_network_internode_sent_bytes_total` | Total number of bytes sent to other peer nodes. <br><br>Type: counter | `server`, `pool_index` |
| `minio_system_network_internode_recv_bytes_total` | Total number of bytes received from other peer nodes. <br><br>Type: counter | `server`, `pool_index` |
#### `/system/process`
| Name | Description | Labels |
|----------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------|----------|
| `minio_system_process_locks_read_total` | Number of current READ locks on this peer. <br><br>Type: gauge | `server` |
| `minio_system_process_locks_write_total` | Number of current WRITE locks on this peer. <br><br>Type: gauge | `server` |
| `minio_system_process_cpu_total_seconds` | Total user and system CPU time spent in seconds. <br><br>Type: counter | `server` |
| `minio_system_process_go_routine_total` | Total number of go routines running. <br><br>Type: gauge | `server` |
| `minio_system_process_io_rchar_bytes` | Total bytes read by the process from the underlying storage system including cache, /proc/[pid]/io rchar. <br><br>Type: counter | `server` |
| `minio_system_process_io_read_bytes` | Total bytes read by the process from the underlying storage system, /proc/[pid]/io read_bytes. <br><br>Type: counter | `server` |
| `minio_system_process_io_wchar_bytes` | Total bytes written by the process to the underlying storage system including page cache, /proc/[pid]/io wchar. <br><br>Type: counter | `server` |
| `minio_system_process_io_write_bytes` | Total bytes written by the process to the underlying storage system, /proc/[pid]/io write_bytes. <br><br>Type: counter | `server` |
| `minio_system_process_start_time_seconds` | Start time for MinIO process in seconds since Unix epoch. <br><br>Type: gauge | `server` |
| `minio_system_process_uptime_seconds` | Uptime for MinIO process in seconds. <br><br>Type: gauge | `server` |
| `minio_system_process_file_descriptor_limit_total` | Limit on total number of open file descriptors for the MinIO Server process. <br><br>Type: gauge | `server` |
| `minio_system_process_file_descriptor_open_total` | Total number of open file descriptors by the MinIO Server process. <br><br>Type: gauge | `server` |
| `minio_system_process_syscall_read_total` | Total read SysCalls to the kernel. /proc/[pid]/io syscr. <br><br>Type: counter | `server` |
| `minio_system_process_syscall_write_total` | Total write SysCalls to the kernel. /proc/[pid]/io syscw. <br><br>Type: counter | `server` |
| `minio_system_process_resident_memory_bytes` | Resident memory size in bytes. <br><br>Type: gauge | `server` |
| `minio_system_process_virtual_memory_bytes` | Virtual memory size in bytes. <br><br>Type: gauge | `server` |
| `minio_system_process_virtual_memory_max_bytes` | Maximum virtual memory size in bytes. <br><br>Type: gauge | `server` |