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alert on remaining disk instead of utilization #658

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merged 2 commits into from
Jun 14, 2023
Merged

alert on remaining disk instead of utilization #658

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b0d109e
alert on remaining disk instead of utilization
Jun 9, 2023
d77a5be
combining with 98% threshold
Jun 9, 2023
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31 changes: 16 additions & 15 deletions terraform/gcp/modules/monitoring/infra/alerts.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -108,7 +108,7 @@ resource "google_monitoring_alert_policy" "cloud_sql_memory_utilization" {
project = var.project_id
}

# Cloud SQL Database Disk Utilization > 98%
# Cloud SQL Database Disk has < 20GiB Free
resource "google_monitoring_alert_policy" "cloud_sql_disk_utilization" {
# In the absence of data, incident will auto-close in 7 days
alert_strategy {
Expand All @@ -118,30 +118,31 @@ resource "google_monitoring_alert_policy" "cloud_sql_disk_utilization" {
combiner = "OR"

conditions {
condition_threshold {
aggregations {
alignment_period = "300s"
per_series_aligner = "ALIGN_MEAN"
}

comparison = "COMPARISON_GT"
duration = "0s"
filter = "metric.type=\"cloudsql.googleapis.com/database/disk/utilization\" resource.type=\"cloudsql_database\""
threshold_value = "0.98"

condition_monitoring_query_language {
duration = "0s"
query = <<-EOT
fetch cloudsql_database
| { bytes: metric 'cloudsql.googleapis.com/database/disk/bytes_used'
; quota: metric 'cloudsql.googleapis.com/database/disk/quota' }
| join
| group_by 5m, [q_mean: mean(value.quota), b_mean: mean(value.bytes_used)]
| every 5m
| group_by [resource.database_id], [free_space: sub(mean(q_mean), mean(b_mean))]
| condition free_space < 20 'GiBy'
EOT
trigger {
count = "1"
percent = "0"
}
}

display_name = "Cloud SQL Database - Disk utilization [MEAN]"
display_name = "Cloud SQL Database - Disk free space [MEAN]"
}

display_name = "Cloud Sql Disk Utilization > 98%"
display_name = "Cloud SQL Database Disk has < 20GiB Free"

documentation {
content = "Cloud SQL disk utilization is > 98%. Please increase capacity. Note that autoresize should be enabled for the database. Ensure there is no issue with the autoresize process."
content = "Cloud SQL disk has less than 20GiB free space remaining. Please increase capacity. Note that autoresize should be enabled for the database. Ensure there is no issue with the autoresize process."
mime_type = "text/markdown"
}

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