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TensorFlow Serving integration for Grafana Cloud

TensorFlow Serving is an end-to-end open source platform for machine learning. The TensorFlow Serving integration uses the Grafana agent to collect metrics for monitoring a TensorFlow Serving instance, including aspects such as model request latency, model runtime latency, batch queuing latency, graph build time, and graph run time. The integration also supports the TensorFlow Serving Docker container logs being scraped by the agent using Promtail. An accompanying dashboard is provided to visualize these metrics and logs.

This integration supports TensorFlow Serving 2.10.0+.

This integration includes 2 useful alerts and 1 pre-built dashboard to help monitor and visualize TensorFlow Serving metrics and logs.

Grafana Alloy configuration

Before you begin

In order for the integration to work, you must configure TensorFlow Serving’s built in Prometheus metrics server.

It is required to first enable the Prometheus metrics as described in the TensorFlow Serving documentation.

Special configuration is also needed in order to enable the the Prometheus batching metrics. Batching configuration can be enabled as described in the TensorFlow Serving documentation.

Install TensorFlow Serving integration for Grafana Cloud

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

Configuration snippets for Grafana Alloy

Simple mode

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

Copy and paste the following snippets into your Grafana Alloy configuration file.

Metrics snippets

river 
discovery.relabel "metrics_integrations_integrations_tensorflow" {
	targets = [{
		__address__ = "localhost:8501",
	}]

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

prometheus.scrape "metrics_integrations_integrations_tensorflow" {
	targets      = discovery.relabel.metrics_integrations_integrations_tensorflow.output
	forward_to   = [prometheus.remote_write.metrics_service.receiver]
	job_name     = "integrations/tensorflow"
	metrics_path = "/monitoring/prometheus/metrics"
}

Logs snippets

linux

river 
discovery.docker "logs_integrations_integrations_tensorflow" {
	host             = "unix:///var/run/docker.sock"
	refresh_interval = "5s"

	filter {
		name   = "name"
		values = ["tensorflow"]
	}
}

discovery.relabel "logs_integrations_integrations_tensorflow" {
	targets = []

	rule {
		source_labels = ["__meta_docker_container_name"]
		target_label  = "name"
		replacement   = "tensorflow"
	}

	rule {
		source_labels = ["__meta_docker_container_name"]
		target_label  = "job"
		replacement   = "integrations/tensorflow"
	}

	rule {
		source_labels = ["__meta_docker_container_name"]
		target_label  = "instance"
		replacement   = constants.hostname
	}
}

loki.source.docker "logs_integrations_integrations_tensorflow" {
	host             = "unix:///var/run/docker.sock"
	targets          = discovery.docker.logs_integrations_integrations_tensorflow.targets
	forward_to       = [loki.write.grafana_cloud_loki.receiver]
	relabel_rules    = discovery.relabel.logs_integrations_integrations_tensorflow.rules
	refresh_interval = "5s"
}

Advanced mode

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

To instruct Grafana Alloy to scrape your TensorFlow Serving instances, copy and paste the snippets to your configuration file and follow subsequent instructions.

Advanced metrics snippets

river 
discovery.relabel "metrics_integrations_integrations_tensorflow" {
	targets = [{
		__address__ = "localhost:8501",
	}]

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

prometheus.scrape "metrics_integrations_integrations_tensorflow" {
	targets      = discovery.relabel.metrics_integrations_integrations_tensorflow.output
	forward_to   = [prometheus.remote_write.metrics_service.receiver]
	job_name     = "integrations/tensorflow"
	metrics_path = "/monitoring/prometheus/metrics"
}

To monitor your TensorFlow Serving instance, you must use a discovery.relabel component to discover your TensorFlow Serving 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 TensorFlow Serving 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 TensorFlow Serving instance. Make sure this label value is the same for all telemetry data collected for this instance.

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

Advanced logs snippets

linux

river 
discovery.docker "logs_integrations_integrations_tensorflow" {
	host             = "unix:///var/run/docker.sock"
	refresh_interval = "5s"

	filter {
		name   = "name"
		values = ["tensorflow"]
	}
}

discovery.relabel "logs_integrations_integrations_tensorflow" {
	targets = []

	rule {
		source_labels = ["__meta_docker_container_name"]
		target_label  = "name"
		replacement   = "tensorflow"
	}

	rule {
		source_labels = ["__meta_docker_container_name"]
		target_label  = "job"
		replacement   = "integrations/tensorflow"
	}

	rule {
		source_labels = ["__meta_docker_container_name"]
		target_label  = "instance"
		replacement   = constants.hostname
	}
}

loki.source.docker "logs_integrations_integrations_tensorflow" {
	host             = "unix:///var/run/docker.sock"
	targets          = discovery.docker.logs_integrations_integrations_tensorflow.targets
	forward_to       = [loki.write.grafana_cloud_loki.receiver]
	relabel_rules    = discovery.relabel.logs_integrations_integrations_tensorflow.rules
	refresh_interval = "5s"
}

To monitor your TensorFlow Serving instance logs, you will use a combination of the following components:

Grafana Agent configuration

Before you begin

In order for the integration to work, you must configure TensorFlow Serving’s built in Prometheus metrics server.

It is required to first enable the Prometheus metrics as described in the TensorFlow Serving documentation.

Special configuration is also needed in order to enable the the Prometheus batching metrics. Batching configuration can be enabled as described in the TensorFlow Serving documentation.

Install TensorFlow Serving integration for Grafana Cloud

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

Post-install configuration for the TensorFlow Serving integration

This integration supports metrics and logs from a TensorFlow Serving instance.

Enable the integration by adding the provided snippets to your agent configuration file.

If you want to show logs and metrics signals correlated in your dashboards, as a single pane of glass, ensure the following: job and instance label values must match for metrics and logs scrape config in your agent configuration file. job label must be set to integrations/tensorflow (already configured in the snippets). instance label must be set to a value that uniquely identifies your Tensorflow node. Please replace the default hostname value according to your environment - it should be set manually. Note that if you use localhost for multiple nodes, the dashboards will not be able to filter correctly by instance.

Additionally, this integration needs a name label to be set to tensorflow in the log scrape. This is already configured in the log snippet.

Configuration snippets for Grafana Agent

Below metrics.configs.scrape_configs, insert the following lines and change the URLs according to your environment:

yaml 
    - job_name: integrations/tensorflow
      metrics_path: "/monitoring/prometheus/metrics"
      relabel_configs:
        - replacement: '<your-instance-name>'
          target_label: instance
      static_configs:
        - targets: ['localhost:8501']

Below logs.configs.scrape_configs, insert the following lines according to your environment.

yaml 
    - job_name: integrations/tensorflow
      relabel_configs:
        - source_labels: ['__meta_docker_container_name']
          replacement: tensorflow
          target_label: name
        - source_labels: ['__meta_docker_container_name']
          replacement: integrations/tensorflow
          target_label: job
        - source_labels: ['__meta_docker_container_name']
          replacement: '<your-instance-name>'
          target_label: instance
      docker_sd_configs:
        - host: unix:///var/run/docker.sock
          refresh_interval: 5s
          filters:
            - name: name
              values: [tensorflow]

Full example configuration for Grafana Agent

Refer to the following Grafana Agent configuration for a complete example that contains all the snippets used for the TensorFlow Serving integration. This example also includes metrics that are sent to monitor your Grafana Agent instance.

yaml 
integrations:
  prometheus_remote_write:
  - basic_auth:
      password: <your_prom_pass>
      username: <your_prom_user>
    url: <your_prom_url>
  agent:
    enabled: true
    relabel_configs:
    - action: replace
      source_labels:
      - agent_hostname
      target_label: instance
    - action: replace
      target_label: job
      replacement: "integrations/agent-check"
    metric_relabel_configs:
    - action: keep
      regex: (prometheus_target_sync_length_seconds_sum|prometheus_target_scrapes_.*|prometheus_target_interval.*|prometheus_sd_discovered_targets|agent_build.*|agent_wal_samples_appended_total|process_start_time_seconds)
      source_labels:
      - __name__
  # Add here any snippet that belongs to the `integrations` section.
  # For a correct indentation, paste snippets copied from Grafana Cloud at the beginning of the line.
logs:
  configs:
  - clients:
    - basic_auth:
        password: <your_loki_pass>
        username: <your_loki_user>
      url: <your_loki_url>
    name: integrations
    positions:
      filename: /tmp/positions.yaml
    scrape_configs:
      # Add here any snippet that belongs to the `logs.configs.scrape_configs` section.
      # For a correct indentation, paste snippets copied from Grafana Cloud at the beginning of the line.
    - job_name: integrations/tensorflow
      relabel_configs:
        - source_labels: ['__meta_docker_container_name']
          replacement: tensorflow
          target_label: name
        - source_labels: ['__meta_docker_container_name']
          replacement: integrations/tensorflow
          target_label: job
        - source_labels: ['__meta_docker_container_name']
          replacement: '<your-instance-name>'
          target_label: instance
      docker_sd_configs:
        - host: unix:///var/run/docker.sock
          refresh_interval: 5s
          filters:
            - name: name
              values: [tensorflow]
metrics:
  configs:
  - name: integrations
    remote_write:
    - basic_auth:
        password: <your_prom_pass>
        username: <your_prom_user>
      url: <your_prom_url>
    scrape_configs:
      # Add here any snippet that belongs to the `metrics.configs.scrape_configs` section.
      # For a correct indentation, paste snippets copied from Grafana Cloud at the beginning of the line.
    - job_name: integrations/tensorflow
      metrics_path: "/monitoring/prometheus/metrics"
      relabel_configs:
        - replacement: '<your-instance-name>'
          target_label: instance
      static_configs:
        - targets: ['localhost:8501']
  global:
    scrape_interval: 60s
  wal_directory: /tmp/grafana-agent-wal

Dashboards

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

  • TensorFlow Serving overview

TensorFlow Serving overview dashboard 1

TensorFlow Serving overview dashboard 1

TensorFlow Serving overview dashboard 2

TensorFlow Serving overview dashboard 2

Alerts

The TensorFlow Serving integration includes the following useful alerts:

AlertDescription
TensorFlowModelRequestHighErrorRateCritical: More than 30% of all model requests are not successful.
TensorFlowServingHighBatchQueuingLatencyWarning: Batch queuing latency more than 5000000µs.

Metrics

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

  • :tensorflow:core:graph_build_calls
  • :tensorflow:core:graph_build_time_usecs
  • :tensorflow:core:graph_run_time_usecs
  • :tensorflow:core:graph_runs
  • :tensorflow:serving:batching_session:queuing_latency_count
  • :tensorflow:serving:batching_session:queuing_latency_sum
  • :tensorflow:serving:request_count
  • :tensorflow:serving:request_latency_count
  • :tensorflow:serving:request_latency_sum
  • :tensorflow:serving:runtime_latency_count
  • :tensorflow:serving:runtime_latency_sum
  • up

Changelog

md 
# 1.0.0 - April 2024
* Added cluster selector to dashboards for kubernetes support
* Added default cluster label to agent config
* Bump version to 1.0.0

# 0.0.4 - 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.

# 0.0.3 - August 2023

* Add regex filter for logs datasource

# 0.0.2 - January 2023

* Updated integration name to TensorFlow Serving

# 0.0.1 - December 2022

* Initial Release

Cost

By connecting your TensorFlow Serving 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.