etcd

Monitor etcd Raft proposals, leader elections, disk fsync latency, and database size.

Key Metrics

Metric	Description
etcd_server_has_leader	Whether a leader exists (1=yes)
etcd_server_leader_changes_seen_total	Leader election count
etcd_server_proposals_committed_total	Raft proposals committed
etcd_mvcc_db_total_size_in_bytes	Backend database size
etcd_disk_wal_fsync_duration_seconds	WAL fsync latency histogram
etcd_network_peer_round_trip_time_seconds	Peer network RTT

Prerequisites

• etcd 3.3+
• etcd exposes Prometheus metrics on port 2379 by default

Configuration

etcd exposes metrics natively at http://localhost:2379/metrics.

Option A — Prometheus scrape

scrape_configs:
  - job_name: etcd
    static_configs:
      - targets: ['localhost:2379']

remote_write:
  - url: https://<region>.xscalerlabs.com/api/v1/push
    headers:
      X-Scope-OrgID: <tenant-id>
    basic_auth:
      password: <api-token>

Option B — Grafana Alloy

prometheus.scrape "etcd" {
  targets    = [{"__address__" = "localhost:2379"}]
  forward_to = [prometheus.remote_write.xscaler.receiver]
}

prometheus.remote_write "xscaler" {
  endpoint {
    url = "https://<region>.xscalerlabs.com/api/v1/push"
    headers = { "X-Scope-OrgID" = "<tenant-id>" }
    basic_auth { password = "<api-token>" }
  }
}

Option C — OpenTelemetry Collector

receivers:
  prometheus:
    config:
      scrape_configs:
        - job_name: etcd
          static_configs:
            - targets: ['localhost:2379']

exporters:
  prometheusremotewrite:
    endpoint: https://<region>.xscalerlabs.com/api/v1/push
    headers:
      Authorization: Bearer <api-token>
      X-Scope-OrgID: <tenant-id>

service:
  pipelines:
    metrics:
      receivers: [prometheus]
      exporters: [prometheusremotewrite]

Logs

Collect etcd server log via systemd journal. Add the following to your Alloy config:

loki.source.journal "etcd_journal" {
  forward_to    = [loki.write.xscaler.receiver]
  relabel_rules = loki.relabel.etcd_journal.rules
  labels = {
    job      = "integrations/etcd",
    instance = constants.hostname,
  }
}

loki.relabel "etcd_journal" {
  forward_to = []
  rule {
    source_labels = ["__journal__systemd_unit"]
    target_label  = "unit"
  }
}

loki.write "xscaler" {
  endpoint {
    url = "https://euw1-01.l.xscalerlabs.com/api/v1/logs/push"

    http_client_config {
      authorization {
        type        = "Bearer"
        credentials = env("XSCALER_TOKEN")
      }
    }

    headers = { "X-Scope-OrgID" = env("XSCALER_TENANT_ID") }
  }
}