bCache

Ship your bCache Metrics via Telegraf to your Logit.io Stack

Follow the steps below to send your observability data to Logit.io

Metrics

Configure Telegraf to ship bCache metrics to your Logit.io stacks via Logstash.

Install Integration

Please click on the Install Integration button to configure your stack for this source.

Install Telegraf

This integration allows you to configure a Telegraf agent to send your metrics to Logit.io.

Choose the installation method for your operating system:

When you paste the command below into Powershell it will download the Telegraf zip file. Once that is complete, press Enter again and the zip file will be extracted into C:\Program Files\InfluxData\telegraf\telegraf-1.34.1.

wget https://dl.influxdata.com/telegraf/releases/telegraf-1.34.1_windows_amd64.zip -UseBasicParsing -OutFile telegraf-1.34.1_windows_amd64.zip 
Expand-Archive .\telegraf-1.34.1_windows_amd64.zip -DestinationPath 'C:\Program Files\InfluxData\telegraf'

or in Powershell 7 use:

# Download the Telegraf ZIP file
Invoke-WebRequest -Uri "https://dl.influxdata.com/telegraf/releases/telegraf-1.34.1_windows_amd64.zip" `
                -OutFile "telegraf-1.34.1_windows_amd64.zip" `
                -UseBasicParsing
 
# Extract the contents of the ZIP file
Expand-Archive -Path ".\telegraf-1.34.1_windows_amd64.zip" `
            -DestinationPath "C:\Program Files\InfluxData\telegraf"

Configure the Telegraf input plugin

The configuration file below is pre-configured to scrape the system metrics from your hosts, add the following code to the configuration file /etc/telegraf/telegraf.conf from the previous step.

# Read metrics of bcache from stats_total and dirty_data
# This plugin ONLY supports Linux
[[inputs.bcache]]
  ## Bcache sets path
  ## If not specified, then default is:
  bcachePath = "/sys/fs/bcache"
 
  ## By default, Telegraf gather stats for all bcache devices
  ## Setting devices will restrict the stats to the specified
  ## bcache devices.
  bcacheDevs = ["bcache0"]

Read more about how to configure data scraping and configuration options for bCache (opens in a new tab)

Configure The Output plugin

Once you have generated the configuration file, you need to set up the output plug-in to allow Telegraf to transmit your data to Logit.io in Prometheus format. This can be accomplished by incorporating the following code into your configuration file:

[[inputs.tail]]
  name_override = "nginxlog"
  files = ["<Nginx installation directory>/logs/access.log"]
  from_beginning = true
  pipe = false
  data_format = "grok"
  grok_patterns = ["%{COMBINED_LOG_FORMAT}"]
 
[[outputs.http]]
  url = "https://@metricsUsername:@metricsPassword@@metrics_id-vm.logit.io:@vmAgentPort/api/v1/write"
  data_format = "prometheusremotewrite"
 
  [outputs.http.headers]
    Content-Type = "application/x-protobuf"
    Content-Encoding = "snappy"

Remember to replace <Nginx installation directory> with the directory where your Nginx is located.

Start Telegraf

From the location where Telegraf was installed (C:\Program Files\InfluxData\telegraf\telegraf-1.34.1) run the program providing the chosen configuration file as a parameter:

.\telegraf.exe --config telegraf.conf

Once Telegraf is running you should see output similar to the following, which confirms the inputs, output and basic configuration the application has been started with:

Powershell Telegraf information

View your metrics

Data should now have been sent to your Stack.

View My Data

If you don't see take a look at How to diagnose no data in Stack below for how to diagnose common issues.

How to diagnose no data in Stack

If you don't see data appearing in your stack after following this integration, take a look at the troubleshooting guide for steps to diagnose and resolve the problem or contact our support team and we'll be happy to assist.

Telegraf bCache Overview

To effectively monitor and analyze bCache metrics across a distributed environment, it's crucial to have a robust and efficient metrics management solution. Telegraf, an open-source server agent for collecting and reporting metrics, is perfectly suited for this role. It can gather bCache metrics from various sources, including operational bCache instances, databases, and other relevant applications.

Telegraf's input plugins enable the collection of a wide variety of metrics, such as CPU usage, memory utilization, and network traffic, that are key to understanding bCache performance. To store and analyze these harvested metrics, organizations can use Prometheus, an open-source monitoring and alerting toolkit renowned for its flexible querying language and impressive data visualization capabilities.

To transmit bCache metrics from Telegraf to Prometheus, organizations need to configure Telegraf to output metrics in the Prometheus format and then set up Prometheus to scrape these metrics from the Telegraf server. This process involves setting up Telegraf to collect bCache metrics, outputting them in the Prometheus format, configuring Prometheus to retrieve these metrics from the Telegraf server, and then visually interpreting the data using Prometheus's dynamic querying and graphical visualization tools.

Upon successful integration of the metrics into Prometheus, further analysis and visualization can be carried out using Grafana, a leading open-source platform recognized for its monitoring and observability features. Grafana is fully compatible with Prometheus and allows users to create dynamic, interactive dashboards for an in-depth look at the metrics data. This offers a comprehensive understanding of performance trends and potential issues within the bCache system.

If you need any further assistance with shipping your log data to Logit.io we're here to help you get started. Feel free to get in contact with our support team by sending us a message via live chat & we'll be happy to assist.

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