Elasticsearch monitoring with Netdata

Monitors Elasticsearch performance and health metrics.

It produces:

1. Search performance charts:

   • Number of queries, fetches
   • Time spent on queries, fetches
   • Query and fetch latency

2. Indexing performance charts:

   • Number of documents indexed, index refreshes, flushes
   • Time spent on indexing, refreshing, flushing
   • Indexing and flushing latency

3. Memory usage and garbage collection charts:

   • JVM heap currently in use, committed
   • Count of garbage collections
   • Time spent on garbage collections

4. Host metrics charts:

   • Available file descriptors in percent
   • Opened HTTP connections
   • Cluster communication transport metrics

5. Queues and rejections charts:

   • Number of queued/rejected threads in thread pool

6. Fielddata cache charts:

   • Fielddata cache size
   • Fielddata evictions and circuit breaker tripped count

7. Cluster health API charts:

   • Cluster status
   • Nodes and tasks statistics
   • Shards statistics

8. Cluster stats API charts:

   • Nodes statistics
   • Query cache statistics
   • Docs statistics
   • Store statistics
   • Indices and shards statistics

9. Indices charts (per index statistics, disabled by default):

   • Docs count
   • Store size
   • Num of replicas
   • Health status

Configuration

Edit the python.d/elasticsearch.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory, if different

sudo ./edit-config python.d/elasticsearch.conf

Sample:

local:

host : 'ipaddress' # Elasticsearch server ip address or hostname.

port : 'port' # Port on which elasticsearch listens.

scheme : 'http' # URL scheme. Use 'https' if your elasticsearch uses TLS.

node_status : yes/no # Get metrics from "/_nodes/_local/stats". Enabled by default.

cluster_health : yes/no # Get metrics from "/_cluster/health". Enabled by default.

cluster_stats : yes/no # Get metrics from "'/_cluster/stats". Enabled by default.

indices_stats : yes/no # Get metrics from "/_cat/indices". Disabled by default.

If no configuration is given, module will try to connect to http://127.0.0.1:9200.

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