Kibana and Parquet Integration

Input and output integration overview

The Kibana plugin enables users to obtain status metrics from Kibana, a data visualization tool for Elasticsearch. By connecting to the Kibana API, this plugin captures various performance indicators and the health status of the Kibana service.

This plugin writes metrics to parquet files, utilizing a schema based on the metrics grouped by name. It supports file rotation and buffered writing for optimal performance.

Integration details

Kibana

The Kibana input plugin is designed to query the Kibana API to gather service status information. This plugin allows users to monitor their Kibana instances effectively by pulling metrics related to its health, performance, and operational metrics. By querying the Kibana API, this plugin provides insights into key parameters such as the current health status (green, yellow, red), uptime, heap memory usage, and request performance metrics. This information is crucial for administrators and operational teams looking to maintain optimal system performance and quickly address any issues that may arise. The configuration settings allow for flexible integration with other components in a microservices architecture, facilitating comprehensive monitoring solutions aligned with organizational needs, making it an essential tool for those leveraging the Elastic Stack in their infrastructure.

Parquet

The Parquet output plugin for Telegraf writes metrics to parquet files, which are columnar storage formats optimized for analytics. By default, this plugin groups metrics by their name, writing them to a single file. If a metric’s schema does not align with existing schemas, those metrics are dropped. The plugin generates an Apache Arrow schema based on all grouped metrics, ensuring that the schema reflects the union of all fields and tags. It operates in a buffered manner, meaning it temporarily holds metrics in memory before writing them to disk for efficiency. Parquet files require proper closure to ensure readability, and this is crucial when using the plugin, as improper closure can lead to unreadable files. Additionally, the plugin supports file rotation after specific time intervals, preventing overwrites of existing files and schema conflicts when a file with the same name already exists.

Configuration

Kibana

[[inputs.kibana]]
  ## Specify a list of one or more Kibana servers
  servers = ["http://localhost:5601"]

  ## Timeout for HTTP requests
  timeout = "5s"

  ## HTTP Basic Auth credentials
  # username = "username"
  # password = "pa$$word"

  ## Optional TLS Config
  # tls_ca = "/etc/telegraf/ca.pem"
  # tls_cert = "/etc/telegraf/cert.pem"
  # tls_key = "/etc/telegraf/key.pem"
  ## Use TLS but skip chain & host verification
  # insecure_skip_verify = false
 
  ## If 'use_system_proxy' is set to true, Telegraf will check env vars such as
  ## HTTP_PROXY, HTTPS_PROXY, and NO_PROXY (or their lowercase counterparts).
  ## If 'use_system_proxy' is set to false (default) and 'http_proxy_url' is
  ## provided, Telegraf will use the specified URL as HTTP proxy.
  # use_system_proxy = false
  # http_proxy_url = "http://localhost:8888"

Parquet

[[outputs.parquet]]
  ## Directory to write parquet files in. If a file already exists the output
  ## will attempt to continue using the existing file.
  # directory = "."
  
  ## Files are rotated after the time interval specified. When set to 0 no time
  ## based rotation is performed.
  # rotation_interval = "0h"
  
  ## Timestamp field name
  ## Field name to use to store the timestamp. If set to an empty string, then
  ## the timestamp is omitted.
  # timestamp_field_name = "timestamp"

Input and output integration examples

Kibana

1. Kibana Health Monitoring: Implement a dedicated dashboard to periodically poll the metrics from Kibana. This setup allows operations teams to have a real-time view of their Kibana instances’ health and metrics, enabling proactive performance management and immediate response capabilities in case of service degradation or failure.

2. Automated Alerting System: Integrate the metrics gathered from the Kibana plugin with an alerting system using tools like Prometheus or PagerDuty. By setting thresholds for key metrics (e.g., response time or heap usage), this integration can automatically notify the relevant personnel of performance issues, thereby reducing downtime and improving the response time for operational issues.

3. Resource Optimization Strategy: Use the memory usage and response time metrics collected by this plugin to formulate strategies for optimizing resource allocation in Kubernetes or other orchestration platforms. By analyzing trends over time, teams can adjust resource limits and requests dynamically, ensuring that Kibana instances function efficiently without over-provisioning resources.

Parquet

1. Data Lake Ingestion: Utilize the Parquet plugin to store metrics from various sources into a data lake. By writing metrics in parquet format, you establish a standardized and efficient way to manage time-series data, enabling faster querying capabilities and seamless integration with analytics tools like Apache Spark or AWS Athena. This setup can significantly improve data retrieval times and analysis workflows.

2. Long-term Storage of Metrics: Implement the Parquet plugin in a monitoring setup where metrics are collected over time from multiple applications. This allows for long-term storage of performance data in a compact format, making it cost-effective to store vast amounts of historical data while preserving the ability for quick retrieval and analysis later on. By archiving metrics in parquet files, organizations can maintain compliance and create detailed reports from historical performance trends.

3. Analytics and Reporting: After writing metrics to parquet files, leverage tools like Apache Arrow or PyArrow to perform complex analytical queries directly on the files without needing to load all the data into memory. This can enhance reporting capabilities, allowing teams to generate insights and visualization from large datasets efficiently, thereby improving decision-making processes based on accurate, up-to-date performance metrics.

4. Integrating with Data Warehouses: Use the Parquet plugin as part of a data integration pipeline that feeds into a modern data warehouse. By converting metrics to parquet format, the data can be easily ingested by systems like Snowflake or Google BigQuery, enabling powerful analytics and business intelligence capabilities that drive actionable insights from the collected metrics.

Feedback

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