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Elasticsearch

Auto-Detection
Health Check
Built-in Metrics

Elasticsearch is a distributed search and analytics engine built on Apache Lucene.

Auto-Detection

Section titled “Auto-Detection”

Glouton detects Elasticsearch by its process and listening port (default: 9200).

If auto-detected parameters are incorrect, override them manually:

Terminal window
sudo tee /etc/glouton/conf.d/99-elasticsearch.conf > /dev/null << 'EOF'
service:
  # For an Elasticsearch running outside a container
  - type: "elasticsearch"
    address: "127.0.0.1"
    port: 9200


  # For an additional Elasticsearch running outside a container
  - type: "elasticsearch"
    instance: "NAME_ASSOCIATED_WITH_YOUR_ADDITIONAL_SERVICE"
    address: "127.0.0.1"
    port: 9201


  # For an Elasticsearch running in a Docker container
  - type: "elasticsearch"
    instance: "CONTAINER_NAME"
    address: "172.17.0.2"
    port: 9200
EOF

Glouton automatically detects configuration changes.

Health Check

Section titled “Health Check”

Glouton performs an HTTP check on the configured port to verify that Elasticsearch is responding.

Built-in Metrics

Section titled “Built-in Metrics”
Metric Description
service_status Status of Elasticsearch
elasticsearch_docs_count Number of documents stored in all indices
elasticsearch_jvm_gc Number of garbage collections per second
elasticsearch_jvm_gc_utilization Garbage collection utilization in percent
elasticsearch_jvm_heap_used Heap memory used in bytes
elasticsearch_jvm_non_heap_used Non-heap memory used in bytes
elasticsearch_size Size of all indices in bytes
elasticsearch_search Number of searches per shard per second
elasticsearch_search_time Average time per search in seconds
elasticsearch_cluster_docs_count Number of documents stored across all cluster indices
elasticsearch_cluster_size Size of all cluster indices in bytes