Prometheus exporter for various metrics about ElasticSearch, written in Go.
For pre-built binaries please take a look at the releases. https://github.com/justwatchcom/elasticsearch_exporter/releases
docker pull justwatch/elasticsearch_exporter:1.1.0
docker run --rm -p 9114:9114 justwatch/elasticsearch_exporter:1.1.0Example docker-compose.yml:
elasticsearch_exporter:
image: justwatch/elasticsearch_exporter:1.1.0
command:
- '--es.uri=http://elasticsearch:9200'
restart: always
ports:
- "127.0.0.1:9114:9114"You can find a helm chart in the stable charts repository at https://github.com/kubernetes/charts/tree/master/stable/elasticsearch-exporter.
NOTE: The exporter fetches information from an ElasticSearch cluster on every scrape, therefore having a too short scrape interval can impose load on ES master nodes, particularly if you run with --es.all and --es.indices. We suggest you measure how long fetching /_nodes/stats and /_all/_stats takes for your ES cluster to determine whether your scraping interval is too short. As a last resort, you can scrape this exporter using a dedicated job with its own scraping interval.
Below is the command line options summary:
elasticsearch_exporter --help| Argument | Introduced in Version | Description | Default |
|---|---|---|---|
| es.uri | 1.0.2 | Address (host and port) of the Elasticsearch node we should connect to. This could be a local node (localhost:9200, for instance), or the address of a remote Elasticsearch server. When basic auth is needed, specify as: <proto>://<user>:<password>@<host>:<port>. E.G., http://admin:pass@localhost:9200. Special characters in the user credentials need to be URL-encoded. |
http://localhost:9200 |
| es.all | 1.0.2 | If true, query stats for all nodes in the cluster, rather than just the node we connect to. | false |
| es.cluster_settings | 1.1.0rc1 | If true, query stats for cluster settings. | false |
| es.indices | 1.0.2 | If true, query stats for all indices in the cluster. | false |
| es.indices_settings | 1.0.4rc1 | If true, query settings stats for all indices in the cluster. | false |
| es.shards | 1.0.3rc1 | If true, query stats for all indices in the cluster, including shard-level stats (implies es.indices=true). |
false |
| es.snapshots | 1.0.4rc1 | If true, query stats for the cluster snapshots. | false |
| es.timeout | 1.0.2 | Timeout for trying to get stats from Elasticsearch. (ex: 20s) | 5s |
| es.ca | 1.0.2 | Path to PEM file that contains trusted Certificate Authorities for the Elasticsearch connection. | |
| es.client-private-key | 1.0.2 | Path to PEM file that contains the private key for client auth when connecting to Elasticsearch. | |
| es.client-cert | 1.0.2 | Path to PEM file that contains the corresponding cert for the private key to connect to Elasticsearch. | |
| es.clusterinfo.interval | 1.1.0rc1 | Cluster info update interval for the cluster label | 5m |
| es.ssl-skip-verify | 1.0.4rc1 | Skip SSL verification when connecting to Elasticsearch. | false |
| web.listen-address | 1.0.2 | Address to listen on for web interface and telemetry. | :9114 |
| web.telemetry-path | 1.0.2 | Path under which to expose metrics. | /metrics |
| version | 1.0.2 | Show version info on stdout and exit. |
Commandline parameters start with a single - for versions less than 1.1.0rc1.
For versions greater than 1.1.0rc1, commandline parameters are specified with --. Also, all commandline parameters can be provided as environment variables. The environment variable name is derived from the parameter name
by replacing . and - with _ and upper-casing the parameter name.
ES 7.x supports RBACs. The following security privileges are required for the elasticsearch_exporter.
| Setting | Privilege Required | Description |
|---|---|---|
| exporter defaults | cluster monitor |
All cluster read-only operations, like cluster health and state, hot threads, node info, node and cluster stats, and pending cluster tasks. |
| es.cluster_settings | cluster monitor |
|
| es.indices | indices monitor (per index or *) |
All actions that are required for monitoring (recovery, segments info, index stats and status) |
| es.indices_settings | indices monitor (per index or *) |
|
| es.shards | not sure if indices or cluster monitor or both |
|
| es.snapshots | cluster:admin/snapshot/status and cluster:admin/repository/get |
ES Forum Post |
Further Information
| Name | Type | Cardinality | Help |
|---|---|---|---|
| elasticsearch_breakers_estimated_size_bytes | gauge | 4 | Estimated size in bytes of breaker |
| elasticsearch_breakers_limit_size_bytes | gauge | 4 | Limit size in bytes for breaker |
| elasticsearch_breakers_tripped | counter | 4 | tripped for breaker |
| elasticsearch_cluster_health_active_primary_shards | gauge | 1 | The number of primary shards in your cluster. This is an aggregate total across all indices. |
| elasticsearch_cluster_health_active_shards | gauge | 1 | Aggregate total of all shards across all indices, which includes replica shards. |
| elasticsearch_cluster_health_delayed_unassigned_shards | gauge | 1 | Shards delayed to reduce reallocation overhead |
| elasticsearch_cluster_health_initializing_shards | gauge | 1 | Count of shards that are being freshly created. |
| elasticsearch_cluster_health_number_of_data_nodes | gauge | 1 | Number of data nodes in the cluster. |
| elasticsearch_cluster_health_number_of_in_flight_fetch | gauge | 1 | The number of ongoing shard info requests. |
| elasticsearch_cluster_health_number_of_nodes | gauge | 1 | Number of nodes in the cluster. |
| elasticsearch_cluster_health_number_of_pending_tasks | gauge | 1 | Cluster level changes which have not yet been executed |
| elasticsearch_cluster_health_task_max_waiting_in_queue_millis | gauge | 1 | Max time in millis that a task is waiting in queue. |
| elasticsearch_cluster_health_relocating_shards | gauge | 1 | The number of shards that are currently moving from one node to another node. |
| elasticsearch_cluster_health_status | gauge | 3 | Whether all primary and replica shards are allocated. |
| elasticsearch_cluster_health_timed_out | gauge | 1 | Number of cluster health checks timed out |
| elasticsearch_cluster_health_unassigned_shards | gauge | 1 | The number of shards that exist in the cluster state, but cannot be found in the cluster itself. |
| elasticsearch_filesystem_data_available_bytes | gauge | 1 | Available space on block device in bytes |
| elasticsearch_filesystem_data_free_bytes | gauge | 1 | Free space on block device in bytes |
| elasticsearch_filesystem_data_size_bytes | gauge | 1 | Size of block device in bytes |
| elasticsearch_filesystem_io_stats_device_operations_count | gauge | 1 | Count of disk operations |
| elasticsearch_filesystem_io_stats_device_read_operations_count | gauge | 1 | Count of disk read operations |
| elasticsearch_filesystem_io_stats_device_write_operations_count | gauge | 1 | Count of disk write operations |
| elasticsearch_filesystem_io_stats_device_read_size_kilobytes_sum | gauge | 1 | Total kilobytes read from disk |
| elasticsearch_filesystem_io_stats_device_write_size_kilobytes_sum | gauge | 1 | Total kilobytes written to disk |
| elasticsearch_indices_docs | gauge | 1 | Count of documents on this node |
| elasticsearch_indices_docs_deleted | gauge | 1 | Count of deleted documents on this node |
| elasticsearch_indices_docs_primary | gauge | Count of documents with only primary shards on all nodes | |
| elasticsearch_indices_fielddata_evictions | counter | 1 | Evictions from field data |
| elasticsearch_indices_fielddata_memory_size_bytes | gauge | 1 | Field data cache memory usage in bytes |
| elasticsearch_indices_filter_cache_evictions | counter | 1 | Evictions from filter cache |
| elasticsearch_indices_filter_cache_memory_size_bytes | gauge | 1 | Filter cache memory usage in bytes |
| elasticsearch_indices_flush_time_seconds | counter | 1 | Cumulative flush time in seconds |
| elasticsearch_indices_flush_total | counter | 1 | Total flushes |
| elasticsearch_indices_get_exists_time_seconds | counter | 1 | Total time get exists in seconds |
| elasticsearch_indices_get_exists_total | counter | 1 | Total get exists operations |
| elasticsearch_indices_get_missing_time_seconds | counter | 1 | Total time of get missing in seconds |
| elasticsearch_indices_get_missing_total | counter | 1 | Total get missing |
| elasticsearch_indices_get_time_seconds | counter | 1 | Total get time in seconds |
| elasticsearch_indices_get_total | counter | 1 | Total get |
| elasticsearch_indices_indexing_delete_time_seconds_total | counter | 1 | Total time indexing delete in seconds |
| elasticsearch_indices_indexing_delete_total | counter | 1 | Total indexing deletes |
| elasticsearch_indices_indexing_index_time_seconds_total | counter | 1 | Cumulative index time in seconds |
| elasticsearch_indices_indexing_index_total | counter | 1 | Total index calls |
| elasticsearch_indices_merges_docs_total | counter | 1 | Cumulative docs merged |
| elasticsearch_indices_merges_total | counter | 1 | Total merges |
| elasticsearch_indices_merges_total_size_bytes_total | counter | 1 | Total merge size in bytes |
| elasticsearch_indices_merges_total_time_seconds_total | counter | 1 | Total time spent merging in seconds |
| elasticsearch_indices_query_cache_cache_total | counter | 1 | Count of query cache |
| elasticsearch_indices_query_cache_cache_size | gauge | 1 | Size of query cache |
| elasticsearch_indices_query_cache_count | counter | 2 | Count of query cache hit/miss |
| elasticsearch_indices_query_cache_evictions | counter | 1 | Evictions from query cache |
| elasticsearch_indices_query_cache_memory_size_bytes | gauge | 1 | Query cache memory usage in bytes |
| elasticsearch_indices_query_cache_total | counter | 1 | Size of query cache total |
| elasticsearch_indices_refresh_time_seconds_total | counter | 1 | Total time spent refreshing in seconds |
| elasticsearch_indices_refresh_total | counter | 1 | Total refreshes |
| elasticsearch_indices_request_cache_count | counter | 2 | Count of request cache hit/miss |
| elasticsearch_indices_request_cache_evictions | counter | 1 | Evictions from request cache |
| elasticsearch_indices_request_cache_memory_size_bytes | gauge | 1 | Request cache memory usage in bytes |
| elasticsearch_indices_search_fetch_time_seconds | counter | 1 | Total search fetch time in seconds |
| elasticsearch_indices_search_fetch_total | counter | 1 | Total number of fetches |
| elasticsearch_indices_search_query_time_seconds | counter | 1 | Total search query time in seconds |
| elasticsearch_indices_search_query_total | counter | 1 | Total number of queries |
| elasticsearch_indices_segments_count | gauge | 1 | Count of index segments on this node |
| elasticsearch_indices_segments_memory_bytes | gauge | 1 | Current memory size of segments in bytes |
| elasticsearch_indices_settings_stats_read_only_indices | gauge | 1 | Count of indices that have read_only_allow_delete=true |
| elasticsearch_indices_shards_docs | gauge | 3 | Count of documents on this shard |
| elasticsearch_indices_shards_docs_deleted | gauge | 3 | Count of deleted documents on each shard |
| elasticsearch_indices_store_size_bytes | gauge | 1 | Current size of stored index data in bytes |
| elasticsearch_indices_store_size_bytes_primary | gauge | Current size of stored index data in bytes with only primary shards on all nodes | |
| elasticsearch_indices_store_size_bytes_total | gauge | Current size of stored index data in bytes with all shards on all nodes | |
| elasticsearch_indices_store_throttle_time_seconds_total | counter | 1 | Throttle time for index store in seconds |
| elasticsearch_indices_translog_operations | counter | 1 | Total translog operations |
| elasticsearch_indices_translog_size_in_bytes | counter | 1 | Total translog size in bytes |
| elasticsearch_indices_warmer_time_seconds_total | counter | 1 | Total warmer time in seconds |
| elasticsearch_indices_warmer_total | counter | 1 | Total warmer count |
| elasticsearch_jvm_gc_collection_seconds_count | counter | 2 | Count of JVM GC runs |
| elasticsearch_jvm_gc_collection_seconds_sum | counter | 2 | GC run time in seconds |
| elasticsearch_jvm_memory_committed_bytes | gauge | 2 | JVM memory currently committed by area |
| elasticsearch_jvm_memory_max_bytes | gauge | 1 | JVM memory max |
| elasticsearch_jvm_memory_used_bytes | gauge | 2 | JVM memory currently used by area |
| elasticsearch_jvm_memory_pool_used_bytes | gauge | 3 | JVM memory currently used by pool |
| elasticsearch_jvm_memory_pool_max_bytes | counter | 3 | JVM memory max by pool |
| elasticsearch_jvm_memory_pool_peak_used_bytes | counter | 3 | JVM memory peak used by pool |
| elasticsearch_jvm_memory_pool_peak_max_bytes | counter | 3 | JVM memory peak max by pool |
| elasticsearch_os_cpu_percent | gauge | 1 | Percent CPU used by the OS |
| elasticsearch_os_load1 | gauge | 1 | Shortterm load average |
| elasticsearch_os_load5 | gauge | 1 | Midterm load average |
| elasticsearch_os_load15 | gauge | 1 | Longterm load average |
| elasticsearch_process_cpu_percent | gauge | 1 | Percent CPU used by process |
| elasticsearch_process_cpu_time_seconds_sum | counter | 3 | Process CPU time in seconds |
| elasticsearch_process_mem_resident_size_bytes | gauge | 1 | Resident memory in use by process in bytes |
| elasticsearch_process_mem_share_size_bytes | gauge | 1 | Shared memory in use by process in bytes |
| elasticsearch_process_mem_virtual_size_bytes | gauge | 1 | Total virtual memory used in bytes |
| elasticsearch_process_open_files_count | gauge | 1 | Open file descriptors |
| elasticsearch_snapshot_stats_number_of_snapshots | gauge | 1 | Total number of snapshots |
| elasticsearch_snapshot_stats_oldest_snapshot_timestamp | gauge | 1 | Oldest snapshot timestamp |
| elasticsearch_snapshot_stats_snapshot_start_time_timestamp | gauge | 1 | Last snapshot start timestamp |
| elasticsearch_snapshot_stats_snapshot_end_time_timestamp | gauge | 1 | Last snapshot end timestamp |
| elasticsearch_snapshot_stats_snapshot_number_of_failures | gauge | 1 | Last snapshot number of failures |
| elasticsearch_snapshot_stats_snapshot_number_of_indices | gauge | 1 | Last snapshot number of indices |
| elasticsearch_snapshot_stats_snapshot_failed_shards | gauge | 1 | Last snapshot failed shards |
| elasticsearch_snapshot_stats_snapshot_successful_shards | gauge | 1 | Last snapshot successful shards |
| elasticsearch_snapshot_stats_snapshot_total_shards | gauge | 1 | Last snapshot total shard |
| elasticsearch_thread_pool_active_count | gauge | 14 | Thread Pool threads active |
| elasticsearch_thread_pool_completed_count | counter | 14 | Thread Pool operations completed |
| elasticsearch_thread_pool_largest_count | gauge | 14 | Thread Pool largest threads count |
| elasticsearch_thread_pool_queue_count | gauge | 14 | Thread Pool operations queued |
| elasticsearch_thread_pool_rejected_count | counter | 14 | Thread Pool operations rejected |
| elasticsearch_thread_pool_threads_count | gauge | 14 | Thread Pool current threads count |
| elasticsearch_transport_rx_packets_total | counter | 1 | Count of packets received |
| elasticsearch_transport_rx_size_bytes_total | counter | 1 | Total number of bytes received |
| elasticsearch_transport_tx_packets_total | counter | 1 | Count of packets sent |
| elasticsearch_transport_tx_size_bytes_total | counter | 1 | Total number of bytes sent |
| elasticsearch_clusterinfo_last_retrieval_success_ts | gauge | 1 | Timestamp of the last successful cluster info retrieval |
| elasticsearch_clusterinfo_up | gauge | 1 | Up metric for the cluster info collector |
| elasticsearch_clusterinfo_version_info | gauge | 6 | Constant metric with ES version information as labels |
We provide examples for Prometheus alerts and recording rules as well as an Grafana Dashboard and a Kubernetes Deployment.
The example dashboard needs the node_exporter installed. In order to select the nodes that belong to the ElasticSearch cluster, we rely on a label cluster.
Depending on your setup, it can derived from the platform metadata:
For example on GCE
- source_labels: [__meta_gce_metadata_Cluster]
separator: ;
regex: (.*)
target_label: cluster
replacement: ${1}
action: replace
Please refer to the Prometheus SD documentation to see which metadata labels can be used to create the cluster label.
elasticsearch_exporter is maintained by the nice folks from JustWatch
and licensed under the terms of the Apache license.
This package was originally created and maintained by Eric Richardson, who transferred this repository to us in January 2017.
Maintainers of this repository:
- Christoph Oelmüller christoph.oelmueller@justwatch.com @zwopir
Please refer to the Git commit log for a complete list of contributors.
We welcome any contributions. Please fork the project on GitHub and open Pull Requests for any proposed changes.
Please note that we will not merge any changes that encourage insecure behaviour. If in doubt please open an Issue first to discuss your proposal.