Getting Search Statistics
- reference
Statistics for the Search Service can be retrieved with the GET /api/nsstats
HTTP method and URI.
Description
This retrieves statistics on the Search Service. Information is provided on documents, partition indexes, mutations, compactions, queries, and more.
Curl Syntax
curl -X GET -u <username>:<password> http://<host>:<port>/api/nsstats
The user authenticated by the username
and password
must have been assigned the Full Admin or Cluster Admin role for the cluster; or the Bucket Admin role for the bucket or buckets on which search indexes have been created.
The host
must be a node that hosts the Search Service.
The port
must be 8094
or (for secure access) 18094
.
Responses
If the call is successful, 200 OK
is given, and an object containing search-related statistics is returned.
A malformed URI gives 400 Object Not Found
.
Failure to authenticate gives 401 Unauthorized
.
Successful authentication by a user who has not been assigned an appropriate role gives 403 Forbidden
, and returns an object similar to the following:
{ "message": "Forbidden. User needs one of the following permissions", "permissions": [ "cluster.fts!read" ] }
Example
In the following example, the command-line output is piped to the jq command, to facilitate readability.
curl -v -u Administrator:password -XGET \ http://10.143.194.102:8094/api/nsstats | jq '.'
If successful, the call returns an object similar to the following.
Note that extensive statistics are returned on the two indexes that have been defined for the travel-sample
bucket: travel-sample-index
and geoIndex
.
{ "batch_bytes_added": 0, "batch_bytes_removed": 0, "curr_batches_blocked_by_herder": 0, "num_bytes_used_ram": 213924088, "pct_cpu_gc": 0.001428879394431173, "tot_batches_flushed_on_maxops": 0, "tot_batches_flushed_on_timer": 0, "tot_bleve_dest_closed": 0, "tot_bleve_dest_opened": 12, "tot_grpc_listeners_closed": 0, "tot_grpc_listeners_opened": 1, "tot_grpc_queryreject_on_memquota": 0, "tot_grpcs_listeners_closed": 0, "tot_grpcs_listeners_opened": 1, "tot_http_limitlisteners_closed": 0, "tot_http_limitlisteners_opened": 1, "tot_https_limitlisteners_closed": 0, "tot_https_limitlisteners_opened": 1, "tot_queryreject_on_memquota": 0, "tot_remote_grpc": 0, "tot_remote_grpc_tls": 0, "tot_remote_http": 0, "tot_remote_http2": 0, "total_gc": 1861, "total_queries_rejected_by_herder": 0, "travel-sample:geoIndex:avg_grpc_internal_queries_latency": 0, "travel-sample:geoIndex:avg_grpc_queries_latency": 0, "travel-sample:geoIndex:avg_internal_queries_latency": 0, "travel-sample:geoIndex:avg_queries_latency": 41.771365, "travel-sample:geoIndex:batch_merge_count": 0, "travel-sample:geoIndex:doc_count": 16694, "travel-sample:geoIndex:iterator_next_count": 0, "travel-sample:geoIndex:iterator_seek_count": 0, "travel-sample:geoIndex:last_access_time": "2020-03-30T04:42:53.701-07:00", "travel-sample:geoIndex:num_bytes_live_data": 0, "travel-sample:geoIndex:num_bytes_used_disk": 295152367, "travel-sample:geoIndex:num_bytes_used_disk_by_root": 99845092, "travel-sample:geoIndex:num_files_on_disk": 52, "travel-sample:geoIndex:num_mutations_to_index": 0, "travel-sample:geoIndex:num_persister_nap_merger_break": 6, "travel-sample:geoIndex:num_persister_nap_pause_completed": 6, "travel-sample:geoIndex:num_pindexes_actual": 6, "travel-sample:geoIndex:num_pindexes_target": 6, "travel-sample:geoIndex:num_recs_to_persist": 0, "travel-sample:geoIndex:num_root_filesegments": 6, "travel-sample:geoIndex:num_root_memorysegments": 0, "travel-sample:geoIndex:reader_get_count": 0, "travel-sample:geoIndex:reader_multi_get_count": 0, "travel-sample:geoIndex:reader_prefix_iterator_count": 0, "travel-sample:geoIndex:reader_range_iterator_count": 0, "travel-sample:geoIndex:timer_batch_store_count": 0, "travel-sample:geoIndex:timer_data_delete_count": 0, "travel-sample:geoIndex:timer_data_update_count": 0, "travel-sample:geoIndex:timer_opaque_get_count": 2731, "travel-sample:geoIndex:timer_opaque_set_count": 1024, "travel-sample:geoIndex:timer_rollback_count": 0, "travel-sample:geoIndex:timer_snapshot_start_count": 0, "travel-sample:geoIndex:total_bytes_indexed": 0, "travel-sample:geoIndex:total_bytes_query_results": 13730, "travel-sample:geoIndex:total_compaction_written_bytes": 0, "travel-sample:geoIndex:total_compactions": 0, "travel-sample:geoIndex:total_grpc_internal_queries": 0, "travel-sample:geoIndex:total_grpc_queries": 0, "travel-sample:geoIndex:total_grpc_queries_error": 0, "travel-sample:geoIndex:total_grpc_queries_slow": 0, "travel-sample:geoIndex:total_grpc_queries_timeout": 0, "travel-sample:geoIndex:total_grpc_request_time": 0, "travel-sample:geoIndex:total_internal_queries": 0, "travel-sample:geoIndex:total_queries": 9, "travel-sample:geoIndex:total_queries_error": 1, "travel-sample:geoIndex:total_queries_slow": 0, "travel-sample:geoIndex:total_queries_timeout": 0, "travel-sample:geoIndex:total_request_time": 376022106, "travel-sample:geoIndex:total_term_searchers": 2226, "travel-sample:geoIndex:total_term_searchers_finished": 2226, "travel-sample:geoIndex:writer_execute_batch_count": 0, "travel-sample:travel-sample-index:avg_grpc_internal_queries_latency": 0, "travel-sample:travel-sample-index:avg_grpc_queries_latency": 0, "travel-sample:travel-sample-index:avg_internal_queries_latency": 0, "travel-sample:travel-sample-index:avg_queries_latency": 18.477376, "travel-sample:travel-sample-index:batch_merge_count": 0, "travel-sample:travel-sample-index:doc_count": 16694, "travel-sample:travel-sample-index:iterator_next_count": 0, "travel-sample:travel-sample-index:iterator_seek_count": 0, "travel-sample:travel-sample-index:last_access_time": "2020-03-31T05:56:15.264-07:00", "travel-sample:travel-sample-index:num_bytes_live_data": 0, "travel-sample:travel-sample-index:num_bytes_used_disk": 247966801, "travel-sample:travel-sample-index:num_bytes_used_disk_by_root": 104572509, "travel-sample:travel-sample-index:num_files_on_disk": 54, "travel-sample:travel-sample-index:num_mutations_to_index": 0, "travel-sample:travel-sample-index:num_persister_nap_merger_break": 6, "travel-sample:travel-sample-index:num_persister_nap_pause_completed": 6, "travel-sample:travel-sample-index:num_pindexes_actual": 6, "travel-sample:travel-sample-index:num_pindexes_target": 6, "travel-sample:travel-sample-index:num_recs_to_persist": 0, "travel-sample:travel-sample-index:num_root_filesegments": 10, "travel-sample:travel-sample-index:num_root_memorysegments": 0, "travel-sample:travel-sample-index:reader_get_count": 0, "travel-sample:travel-sample-index:reader_multi_get_count": 0, "travel-sample:travel-sample-index:reader_prefix_iterator_count": 0, "travel-sample:travel-sample-index:reader_range_iterator_count": 0, "travel-sample:travel-sample-index:timer_batch_store_count": 0, "travel-sample:travel-sample-index:timer_data_delete_count": 0, "travel-sample:travel-sample-index:timer_data_update_count": 0, "travel-sample:travel-sample-index:timer_opaque_get_count": 2715, "travel-sample:travel-sample-index:timer_opaque_set_count": 1024, "travel-sample:travel-sample-index:timer_rollback_count": 0, "travel-sample:travel-sample-index:timer_snapshot_start_count": 0, "travel-sample:travel-sample-index:total_bytes_indexed": 0, "travel-sample:travel-sample-index:total_bytes_query_results": 308694, "travel-sample:travel-sample-index:total_compaction_written_bytes": 0, "travel-sample:travel-sample-index:total_compactions": 0, "travel-sample:travel-sample-index:total_grpc_internal_queries": 0, "travel-sample:travel-sample-index:total_grpc_queries": 0, "travel-sample:travel-sample-index:total_grpc_queries_error": 0, "travel-sample:travel-sample-index:total_grpc_queries_slow": 0, "travel-sample:travel-sample-index:total_grpc_queries_timeout": 0, "travel-sample:travel-sample-index:total_grpc_request_time": 0, "travel-sample:travel-sample-index:total_internal_queries": 0, "travel-sample:travel-sample-index:total_queries": 34, "travel-sample:travel-sample-index:total_queries_error": 5, "travel-sample:travel-sample-index:total_queries_slow": 0, "travel-sample:travel-sample-index:total_queries_timeout": 0, "travel-sample:travel-sample-index:total_request_time": 628280816, "travel-sample:travel-sample-index:total_term_searchers": 1669, "travel-sample:travel-sample-index:total_term_searchers_finished": 1669, "travel-sample:travel-sample-index:writer_execute_batch_count": 0 }