fix: prometheus metrics disks_online count when disks are down (#11689)

prometheus metrics was using total disks instead
of online disk count, when disks were down, this
PR fixes this and also adds a new metric for
total_disk_count
This commit is contained in:
Harshavardhana 2021-03-03 11:18:41 -08:00 committed by GitHub
parent 690434514d
commit 2c198ae7b6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 71 additions and 55 deletions

View File

@ -72,6 +72,7 @@ const (
type MetricName string type MetricName string
const ( const (
total MetricName = "total"
errorsTotal MetricName = "error_total" errorsTotal MetricName = "error_total"
healTotal MetricName = "heal_total" healTotal MetricName = "heal_total"
hitsTotal MetricName = "hits_total" hitsTotal MetricName = "hits_total"
@ -85,7 +86,6 @@ const (
openTotal MetricName = "open_total" openTotal MetricName = "open_total"
readTotal MetricName = "read_total" readTotal MetricName = "read_total"
writeTotal MetricName = "write_total" writeTotal MetricName = "write_total"
total MetricName = "total"
failedBytes MetricName = "failed_bytes" failedBytes MetricName = "failed_bytes"
freeBytes MetricName = "free_bytes" freeBytes MetricName = "free_bytes"
@ -254,7 +254,7 @@ func getNodeDiskFreeBytesMD() MetricDescription {
Type: gaugeMetric, Type: gaugeMetric,
} }
} }
func getClusterDiskOfflineTotalMD() MetricDescription { func getClusterDisksOfflineTotalMD() MetricDescription {
return MetricDescription{ return MetricDescription{
Namespace: clusterMetricNamespace, Namespace: clusterMetricNamespace,
Subsystem: diskSubsystem, Subsystem: diskSubsystem,
@ -264,7 +264,7 @@ func getClusterDiskOfflineTotalMD() MetricDescription {
} }
} }
func getClusterDiskOnlineTotalMD() MetricDescription { func getClusterDisksOnlineTotalMD() MetricDescription {
return MetricDescription{ return MetricDescription{
Namespace: clusterMetricNamespace, Namespace: clusterMetricNamespace,
Subsystem: diskSubsystem, Subsystem: diskSubsystem,
@ -274,6 +274,16 @@ func getClusterDiskOnlineTotalMD() MetricDescription {
} }
} }
func getClusterDisksTotalMD() MetricDescription {
return MetricDescription{
Namespace: clusterMetricNamespace,
Subsystem: diskSubsystem,
Name: total,
Help: "Total disks.",
Type: gaugeMetric,
}
}
func getNodeDiskTotalBytesMD() MetricDescription { func getNodeDiskTotalBytesMD() MetricDescription {
return MetricDescription{ return MetricDescription{
Namespace: nodeMetricNamespace, Namespace: nodeMetricNamespace,
@ -1142,7 +1152,7 @@ func getClusterStorageMetrics() MetricsGroup {
// Fetch disk space info, ignore errors // Fetch disk space info, ignore errors
storageInfo, _ := objLayer.StorageInfo(ctx) storageInfo, _ := objLayer.StorageInfo(ctx)
onlineDisks, offlineDisks := getOnlineOfflineDisksStats(storageInfo.Disks) onlineDisks, offlineDisks := getOnlineOfflineDisksStats(storageInfo.Disks)
totalDisks := offlineDisks.Merge(onlineDisks) totalDisks := onlineDisks.Merge(offlineDisks)
metrics.Metrics = append(metrics.Metrics, Metric{ metrics.Metrics = append(metrics.Metrics, Metric{
Description: getClusterCapacityTotalBytesMD(), Description: getClusterCapacityTotalBytesMD(),
@ -1165,12 +1175,17 @@ func getClusterStorageMetrics() MetricsGroup {
}) })
metrics.Metrics = append(metrics.Metrics, Metric{ metrics.Metrics = append(metrics.Metrics, Metric{
Description: getClusterDiskOfflineTotalMD(), Description: getClusterDisksOfflineTotalMD(),
Value: float64(offlineDisks.Sum()), Value: float64(offlineDisks.Sum()),
}) })
metrics.Metrics = append(metrics.Metrics, Metric{ metrics.Metrics = append(metrics.Metrics, Metric{
Description: getClusterDiskOnlineTotalMD(), Description: getClusterDisksOnlineTotalMD(),
Value: float64(onlineDisks.Sum()),
})
metrics.Metrics = append(metrics.Metrics, Metric{
Description: getClusterDisksTotalMD(),
Value: float64(totalDisks.Sum()), Value: float64(totalDisks.Sum()),
}) })
}, },

View File

@ -5,52 +5,53 @@ Each metric has a label for the server that generated the metric.
These metrics can be from any MinIO server once per collection. These metrics can be from any MinIO server once per collection.
| Name | Description | | Name | Description |
|:-----------------------------------------------|:----------------------------------------------------------------------------------------------------------------------------| |:---------------------------------------------|:--------------------------------------------------------------------------------------------------------------------|
|`minio_bucket_objects_size_distribution` |Distribution of object sizes in the bucket, includes label for the bucket name. | | `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_failed_bytes` | Total number of bytes failed at least once to replicate. |
|`minio_bucket_replication_pending_bytes` |Total bytes pending to replicate. | | `minio_bucket_replication_pending_bytes` | Total bytes pending to replicate. |
|`minio_bucket_replication_received_bytes` |Total number of bytes replicated to this bucket from another source bucket. | | `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_sent_bytes` | Total number of bytes replicated to the target bucket. |
|`minio_bucket_usage_object_total` |Total number of objects | | `minio_bucket_usage_object_total` | Total number of objects |
|`minio_bucket_usage_total_bytes` |Total bucket size in bytes | | `minio_bucket_usage_total_bytes` | Total bucket size in bytes |
|`minio_cluster_capacity_raw_free_bytes` |Total free capacity online in the cluster. | | `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_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_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_capacity_usable_total_bytes` | Total usable capacity online in the cluster. |
|`minio_cluster_disk_offline_total` |Total disks offline. | | `minio_cluster_disk_total` | Total disks. |
|`minio_cluster_disk_online_total` |Total disks online. | | `minio_cluster_disk_offline_total` | Total disks offline. |
|`minio_cluster_nodes_offline_total` |Total number of MinIO nodes offline. | | `minio_cluster_disk_online_total` | Total disks online. |
|`minio_cluster_nodes_online_total` |Total number of MinIO nodes online. | | `minio_cluster_nodes_offline_total` | Total number of MinIO nodes offline. |
|`minio_heal_objects_error_total` |Objects for which healing failed in current self healing run | | `minio_cluster_nodes_online_total` | Total number of MinIO nodes online. |
|`minio_heal_objects_heal_total` |Objects healed in current self healing run | | `minio_heal_objects_error_total` | Objects for which healing failed in current self healing run |
|`minio_heal_objects_total` |Objects scanned in current self healing run | | `minio_heal_objects_heal_total` | Objects healed 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_heal_objects_total` | Objects scanned in current self healing run |
|`minio_inter_node_traffic_received_bytes` |Total number of bytes received from other peer nodes. | | `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_sent_bytes` |Total number of bytes sent to the other peer nodes. | | `minio_inter_node_traffic_received_bytes` | Total number of bytes received from other peer nodes. |
|`minio_node_disk_free_bytes` |Total storage available on a disk. | | `minio_inter_node_traffic_sent_bytes` | Total number of bytes sent to the other peer nodes. |
|`minio_node_disk_total_bytes` |Total storage on a disk. | | `minio_node_disk_free_bytes` | Total storage available on a disk. |
|`minio_node_disk_used_bytes` |Total storage used on a disk. | | `minio_node_disk_total_bytes` | Total storage on a disk. |
|`minio_node_file_descriptor_limit_total` |Limit on total number of open file descriptors for the MinIO Server process. | | `minio_node_disk_used_bytes` | Total storage used on a disk. |
|`minio_node_file_descriptor_open_total` |Total number of open file descriptors by the MinIO Server process. | | `minio_node_file_descriptor_limit_total` | Limit on total number of open file descriptors for 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_file_descriptor_open_total` | Total number of open file descriptors by the MinIO Server process. |
|`minio_node_io_read_bytes` |Total bytes read by the process from the underlying storage system, /proc/[pid]/io read_bytes | | `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_wchar_bytes` |Total bytes written by the process to the underlying storage system including page cache, /proc/[pid]/io wchar | | `minio_node_io_read_bytes` | Total bytes read by the process from the underlying storage system, /proc/[pid]/io read_bytes |
|`minio_node_io_write_bytes` |Total bytes written by the process to the underlying storage system, /proc/[pid]/io write_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_process_starttime_seconds` |Start time for MinIO process per node in seconds. | | `minio_node_io_write_bytes` | Total bytes written by the process to the underlying storage system, /proc/[pid]/io write_bytes |
|`minio_node_syscall_read_total` |Total read SysCalls to the kernel. /proc/[pid]/io syscr | | `minio_node_process_starttime_seconds` | Start time for MinIO process per node in seconds. |
|`minio_node_syscall_write_total` |Total write SysCalls to the kernel. /proc/[pid]/io syscw | | `minio_node_syscall_read_total` | Total read SysCalls to the kernel. /proc/[pid]/io syscr |
|`minio_s3_requests_error_total` |Total number S3 requests with errors | | `minio_node_syscall_write_total` | Total write SysCalls to the kernel. /proc/[pid]/io syscw |
|`minio_s3_requests_inflight_total` |Total number of S3 requests currently in flight. | | `minio_s3_requests_error_total` | Total number S3 requests with errors |
|`minio_s3_requests_total` |Total number S3 requests | | `minio_s3_requests_inflight_total` | Total number of S3 requests currently in flight. |
|`minio_s3_time_ttbf_seconds_distribution` |Distribution of the time to first byte across API calls. | | `minio_s3_requests_total` | Total number S3 requests |
|`minio_s3_traffic_received_bytes` |Total number of s3 bytes received. | | `minio_s3_time_ttbf_seconds_distribution` | Distribution of the time to first byte across API calls. |
|`minio_s3_traffic_sent_bytes` |Total number of s3 bytes sent | | `minio_s3_traffic_received_bytes` | Total number of s3 bytes received. |
|`minio_cache_hits_total` |Total number of disk cache hits | | `minio_s3_traffic_sent_bytes` | Total number of s3 bytes sent |
|`minio_cache_missed_total` |Total number of disk cache misses | | `minio_cache_hits_total` | Total number of disk cache hits |
|`minio_cache_sent_bytes` |Total number of bytes served from cache | | `minio_cache_missed_total` | Total number of disk cache misses |
|`minio_cache_total_bytes` |Total size of cache disk in bytes | | `minio_cache_sent_bytes` | Total number of bytes served from cache |
|`minio_cache_usage_info` |Total percentage cache usage, value of 1 indicates high and 0 low, label level is set as well | | `minio_cache_total_bytes` | Total size of cache disk in bytes |
|`minio_cache_used_bytes` |Current cache usage 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_software_commit_info` |Git commit hash for the MinIO release. | | `minio_cache_used_bytes` | Current cache usage in bytes |
|`minio_software_version_info` |MinIO Release tag for the server | | `minio_software_commit_info` | Git commit hash for the MinIO release. |
| `minio_software_version_info` | MinIO Release tag for the server |