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Monitoring a Batch Job with Prometheus Pushgateway

Prometheus Pushgateway provides a way to provide metrics to Prometheus with a push-based model. This is particularly useful for monitoring short-lived job processes. In this lab, you will have the opportunity to work with the Pushgateway API by pushing metrics to it. You will modify a simple job to implement monitoring for the job by pushing metrics to Pushgateway every time it runs.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 45m
Published
Clock icon Jun 12, 2020

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Table of Contents

  1. Challenge

    Modify the Cleanup Job to Push a Metric to Pushgateway to Signal When It Runs

    1. Log in to the Job server.

    2. Edit the cleanup job script:

      sudo vi /etc/jobs/cleanup.sh

    3. Implement a call to the Pushgateway API at the end of the script to signal that the job ran:

      num_files=$(rm -vrif /etc/debug_data/* | wc -l)

cat << EOF | curl --data-binary @- http://prometheus:9091/metrics/job/debug_cleanup/instance/10.0.1.102
  # TYPE job_executed_successful gauge
  job_executed_successful 1
EOF

    4. Access the Prometheus expression browser (http://<PROMETHEUS_SERVER_PUBLIC_IP>:9090/graph), and run a query to verify you can see metric data pushed to Pushgateway by the cleanup job script. Note you may have to wait a minute or so for the job to execute so you can see your changes.

      job_executed_successful[5m]

  2. Challenge

    Modify the Cleanup Job to Push a Metric to Pushgateway Representing the Number of Files Deleted in Each Execution

    1. Edit the cleanup job script again:

      sudo vi /etc/jobs/cleanup.sh

    2. Implement a call to the Pushgateway API at the end of the script to signal that the job ran:

      num_files=$(rm -vrif /etc/debug_data/* | wc -l)

cat << EOF | curl --data-binary @- http://prometheus:9091/metrics/job/debug_cleanup/instance/10.0.1.102
  # TYPE job_executed_successful gauge
  job_executed_successful 1
  # TYPE job_num_files_deleted gauge
  job_num_files_deleted $num_files
EOF

    3. Access the expression browser again and verify you can see the new metric in Prometheus. Note you may have to wait a minute or so for the job to execute so you can see your changes.

      job_num_files_deleted[5m]
Pluralsight Skills - Labs - Pluralsight
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Pluralsight Skills

Pluralsight Skills gives leaders confidence they have the skills needed to execute technology strategy. Technology teams can benchmark expertise across roles, speed up release cycles and build reliable, secure products. By leveraging our expert content, skill assessments and one-of-a-kind analytics, keep up with the pace of change, put the right people on the right projects and boost productivity. It's the most effective path to developing tech skills at scale.

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