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Query Service Metrics

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      A list of the metrics provided by the Query Service.

      The following Query Service metrics can be queried by means of the REST APIs described in Statistics.

      Tip

      • The x.y.z badge shows the Couchbase Server version the metric was added in.

      • The type / unit badge shows shows the Prometheus type and unit (if present).

      n1ql_active_requests     7.0.0gauge

      Total number of active requests.

      n1ql_allocated_values     7.6.0counter

      The total number of values allocated in the query engine.

      n1ql_at_plus     7.0.0counter

      Total number of N1QL requests with at_plus index consistency.

      n1ql_audit_actions     7.0.0counter

      The total number of audit records sent to the server. Some requests cause more than one audit record to be emitted. Records in the output queue that have not yet been sent to the server are not counted.

      n1ql_audit_actions_failed     7.0.0counter

      The total number of audit records sent to the server that failed.

      n1ql_audit_requests_filtered     7.0.0counter

      The number of potentially auditable requests that cause no audit action to be taken.

      n1ql_audit_requests_total     7.0.0counter

      The total number of potentially auditable requests sent to the query engine.

      n1ql_bulk_get_errors     7.2.4counter

      Count of errors due to bulk get operations

      n1ql_cancelled     7.0.0counter

      Total number of cancelled requests.

      n1ql_cas_mismatch_errors     7.2.4counter

      Count of CAS mismatch errors

      n1ql_deletes     7.0.0counter

      Total number of DELETE operations.

      n1ql_errors     7.0.0counter

      The total number of N1QL errors returned so far.

      n1ql_index_scans     7.0.0counter

      Total number of secondary index scans.

      n1ql_index_scans_fts     7.2.4counter

      Total number of index scans performed by FTS.

      n1ql_index_scans_gsi     7.2.4counter

      Total number of index scans performed by GSI.

      n1ql_index_scans_seq     7.6.0counter

      Total number of sequential scans.

      n1ql_inserts     7.0.0counter

      Total number of INSERT operations.

      n1ql_invalid_requests     7.0.0counter

      Total number of requests for unsupported endpoints.

      n1ql_load     7.0.0gauge

      The current utilization factor of the servicers on the query node.

      n1ql_load_factor     7.6.0gauge

      The total load factor of the query node.

      n1ql_mem_quota_exceeded_errors     7.2.4counter

      Count of memory quota exceeded errors

      n1ql_mutations     7.0.0counter

      Total number of document mutations.

      n1ql_node_memory     7.6.0gauge / bytes

      The total size of in use memory in the query node.

      n1ql_prepared     7.0.0counter

      Total number of prepared statements executed.

      n1ql_primary_scans     7.0.0counter

      Total number of primary index scans.

      n1ql_primary_scans_fts     7.2.4counter

      Total number of primary scans performed by FTS.

      n1ql_primary_scans_gsi     7.2.4counter

      Total number of primary scans performed by GSI.

      n1ql_primary_scans_seq     7.6.0counter

      Total number of primary sequential scans.

      n1ql_queued_requests     7.0.0gauge

      Total number of queued requests.

      n1ql_request_time     7.0.0counter / nanoseconds

      Total end-to-end time to process all queries.

      n1ql_requests     7.0.0counter

      Total number of N1QL requests.

      n1ql_requests_1000ms     7.0.0counter

      Number of queries that take longer than 1000ms.

      n1ql_requests_250ms     7.0.0counter

      Number of queries that take longer than 250ms.

      n1ql_requests_5000ms     7.0.0counter

      Number of queries that take longer than 5000ms.

      n1ql_requests_500ms     7.0.0counter

      Number of queries that take longer than 500ms.

      n1ql_result_count     7.0.0counter

      Total number of results (documents) returned by the query engine.

      n1ql_result_size     7.0.0counter / bytes

      Total size of data returned by the query engine.

      n1ql_scan_plus     7.0.0counter

      Total number of N1QL requests with request_plus index consistency.

      n1ql_selects     7.0.0counter

      Total number of SELECT requests.

      n1ql_service_time     7.0.0counter / nanoseconds

      Time to execute all queries.

      n1ql_temp_space_errors     7.6.0counter

      Count of temp space related errors

      n1ql_timeouts     7.2.4counter

      Count of request timeout errors

      n1ql_transaction_time     7.0.0counter / nanoseconds

      Total elapsed time of transactions so far.

      n1ql_transactions     7.0.0counter

      Total number of transactions.

      n1ql_unauthorized_users     7.2.4counter

      Count of unauthorized access errors

      n1ql_unbounded     7.0.0counter

      Total number of N1QL requests with not_bounded index consistency.

      n1ql_updates     7.0.0counter

      Total number of UPDATE requests.

      n1ql_warnings     7.0.0counter

      The total number of N1QL warnings returned so far.