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CockroachDB integration for Grafana Cloud

CockroachDB is a cloud-native SQL database for building global, scalable cloud services that survive disasters.

This integration includes 8 useful alerts and 4 pre-built dashboards to help monitor and visualize CockroachDB metrics.

Before you begin

CockroachDB exposes a Prometheus metrics endpoint that is enabled by default.

Install CockroachDB integration for Grafana Cloud

  1. In your Grafana Cloud stack, click Connections in the left-hand menu.
  2. Find CockroachDB and click its tile to open the integration.
  3. Review the prerequisites in the Configuration Details tab and set up Grafana Agent to send CockroachDB metrics to your Grafana Cloud instance.
  4. Click Install to add this integration’s pre-built dashboards and alerts to your Grafana Cloud instance, and you can start monitoring your CockroachDB setup.

Configuration snippets for Grafana Alloy

Simple mode

These snippets are configured to scrape a single CockroachDB instance running locally with default ports.

First, manually copy and append the following snippets into your alloy configuration file.

Metrics snippets

alloy
discovery.relabel "metrics_integrations_integrations_cockroachdb" {
	targets = [{
		__address__ = "localhost:8080",
		cluster     = "cloud",
	}]

	rule {
		target_label = "instance"
		replacement  = constants.hostname
	}
}

prometheus.scrape "metrics_integrations_integrations_cockroachdb" {
	targets      = discovery.relabel.metrics_integrations_integrations_cockroachdb.output
	forward_to   = [prometheus.remote_write.metrics_service.receiver]
	job_name     = "integrations/cockroachdb"
	metrics_path = "/_status/vars"
}

Advanced mode

The following snippets provide examples to guide you through the configuration process.

To instruct Grafana Alloy to scrape your CockroachDB instances, manually copy and append the snippets to your alloy configuration file, then follow subsequent instructions.

Advanced metrics snippets

alloy
discovery.relabel "metrics_integrations_integrations_cockroachdb" {
	targets = [{
		__address__ = "localhost:8080",
		cluster     = "cloud",
	}]

	rule {
		target_label = "instance"
		replacement  = constants.hostname
	}
}

prometheus.scrape "metrics_integrations_integrations_cockroachdb" {
	targets      = discovery.relabel.metrics_integrations_integrations_cockroachdb.output
	forward_to   = [prometheus.remote_write.metrics_service.receiver]
	job_name     = "integrations/cockroachdb"
	metrics_path = "/_status/vars"
}

To monitor your CockroachDB instance, you must use a discovery.relabel component to discover your CockroachDB Prometheus endpoint and apply appropriate labels, followed by a prometheus.scrape component to scrape it.

Configure the following properties within each discovery.relabel component:

  • __address__: The address to your CockroachDB Prometheus metrics endpoint.
  • instance label: constants.hostname sets the instance label to your Grafana Alloy server hostname. If that is not suitable, change it to a value uniquely identifies this CockroachDB instance.
  • cluster: If you are running on k8s, set this to your k8s cluster name

If you have multiple CockroachDB servers to scrape, configure one discovery.relabel for each and scrape them by including each under targets within the prometheus.scrape component.

Grafana Agent static configuration (deprecated)

The following section shows configuration for running Grafana Agent in static mode which is deprecated. You should use Grafana Alloy for all new deployments.

Dashboards

The CockroachDB integration installs the following dashboards in your Grafana Cloud instance to help monitor your system.

  • Cockroach Replicas
  • Cockroach Runtime
  • Cockroach SQL
  • Cockroach Storage

CockroachDB Replicas - 1

CockroachDB Replicas - 1

CockroachDB Runtime - 1

CockroachDB Runtime - 1

CockroachDB Storage - 1

CockroachDB Storage - 1

Alerts

The CockroachDB integration includes the following useful alerts:

AlertDescription
CockroachInstanceFlappingWarning: CockroachDB instances have restarted in the last 10 minutes.
CockroachLivenessMismatchWarning: CockroachDB has liveness mismatches.
CockroachVersionMismatchWarning: CockroachDB cluster is running different versions.
CockroachStoreDiskLowCritical: CockroachDB is at low disk capacity.
CockroachClusterDiskLowCritical: CockroachDB cluster is at critically low disk capacity.
CockroachUnavailableRangesCritical: CockroachDB has unavailable ranges.
CockroachNoLeaseRangesWarning: CockroachDB has ranges without leases.
CockroachHighOpenFDCountWarning: CockroachDB has too many open file descriptors.

Metrics

The most important metrics provided by the CockroachDB integration, which are used on the pre-built dashboards and Prometheus alerts, are as follows:

  • :cockroachdb_capacity_available:ratio
  • build_timestamp
  • capacity
  • capacity_available
  • capacity_reserved
  • clock_offset_meannanos
  • cluster:cockroachdb_capacity_available:ratio
  • cockroachdb_build_timestamp
  • cockroachdb_capacity
  • cockroachdb_capacity_available
  • cockroachdb_liveness_livenodes
  • cockroachdb_ranges_unavailable
  • cockroachdb_replicas_leaders_not_leaseholders
  • cockroachdb_sys_fd_open
  • cockroachdb_sys_fd_softlimit
  • cockroachdb_sys_uptime
  • keybytes
  • livebytes
  • liveness_livenodes
  • raft_process_commandcommit_latency_bucket
  • raft_process_logcommit_latency_bucket
  • raft_rocksdb_block_cache_hits
  • raft_rocksdb_block_cache_misses
  • raft_rocksdb_num_sstables
  • raft_rocksdb_read_amplification
  • raftlog_behind
  • raftlog_selfbehind
  • raftlog_truncated
  • range_adds
  • range_removes
  • range_snapshots_generated
  • range_snapshots_normal_applied
  • range_snapshots_preemptive_applied
  • range_splits
  • ranges
  • ranges_unavailable
  • ranges_underreplicated
  • rebalancing_writespersecond
  • replicas
  • replicas_leaders
  • replicas_leaders_not_leaseholders
  • replicas_leaseholders
  • replicas_quiescent
  • replicas_reserved
  • rocksdb_block_cache_hits
  • rocksdb_block_cache_misses
  • rocksdb_num_sstables
  • rocksdb_read_amplification
  • round_trip_latency_bucket
  • sql_bytesin
  • sql_bytesout
  • sql_conns
  • sql_ddl_count
  • sql_delete_count
  • sql_exec_latency_bucket
  • sql_insert_count
  • sql_select_count
  • sql_txn_abort_count
  • sql_txn_begin_count
  • sql_txn_commit_count
  • sql_txn_rollback_count
  • sql_update_count
  • sys_cgo_allocbytes
  • sys_cgo_totalbytes
  • sys_cgocalls
  • sys_cpu_sys_ns
  • sys_cpu_user_ns
  • sys_fd_open
  • sys_fd_softlimit
  • sys_gc_count
  • sys_gc_pause_ns
  • sys_go_allocbytes
  • sys_go_totalbytes
  • sys_goroutines
  • sys_rss
  • sys_uptime
  • sysbytes
  • up
  • valbytes

Changelog

md
# 1.0.0 - January 2024

* Updated dashboards to use new React based panels
* Fixed queries for histogram metrics to address panels showing "no data"

# 0.0.6 - September 2023

* New Filter Metrics option for configuring the Grafana Agent, which saves on metrics cost by dropping any metric not used by this integration. Beware that anything custom built using metrics that are not on the snippet will stop working.
* New hostname relabel option, which applies the instance name you write on the text box to the Grafana Agent configuration snippets, making it easier and less error prone to configure this mandatory label.

# 0.0.5 - May 2023

* Add summary and description to alerts to give better visibility of alerts at a glance

# 0.0.4 - February 2023

* Added Grafana Agent Operator configuration snippet to support CockroachDB in a kubernetes cluster.

# 0.0.3 - June 2022

* Add cluster label to agent config
* Rename `node` to `instance` to be consistent with other dashboards, and the prometheus scraping convention
* Add job matcher to all queries on all dashboards, with corresponding dashboard template variable

# 0.0.2 - October 2021

* Update all rate queries to use `$__rate_interval`, so they respect the default resolution

# 0.0.1 - December 2020

* Initial release

Cost

By connecting your CockroachDB instance to Grafana Cloud, you might incur charges. To view information on the number of active series that your Grafana Cloud account uses for metrics included in each Cloud tier, see Active series and dpm usage and Cloud tier pricing.