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Search Service Metrics

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      A list of the metrics provided by the Search Service.

      The following Search 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).

      fts_avg_grpc_queries_latency     7.0.0gauge / milliseconds

      Average latency per query, using gRPC for streaming, for an index

      fts_avg_internal_queries_latency     7.0.0gauge / milliseconds

      Average latency of inter-node queries per unit time for an index

      fts_avg_queries_latency     7.0.0gauge / milliseconds

      Average latency of queries per unit time for an index

      fts_batch_bytes_added     7.0.0counter / bytes

      Total number of bytes from batches yet to be indexed.

      fts_batch_bytes_removed     7.0.0counter / bytes

      Total number of bytes from batches which have been indexed.

      fts_curr_batches_blocked_by_herder     7.0.0gauge

      The difference between the number of batches that have been indexed and the number of batches yet to be indexed

      fts_doc_count     7.0.0counter

      Number of documents in the index

      fts_num_batches_introduced     7.0.0counter

      Total number of batches introduced as part of indexing.

      fts_num_bytes_ram_quota     7.6.0gauge / bytes

      The number of bytes allocated by the cluster manager as maximum usable memory for fts service

      fts_num_bytes_used_disk     7.0.0gauge / bytes

      The number of bytes used on disk by the index

      fts_num_bytes_used_disk_by_root     7.0.0gauge / bytes

      The number of bytes used on disk by the root segment

      fts_num_bytes_used_ram     7.0.0gauge / bytes

      The number of bytes used in memory

      fts_num_files_on_disk     7.0.0gauge

      The number of files on disk for an index

      fts_num_knn_search_requests     7.6.0counter

      Total number of search requests with KNN

      fts_num_mutations_to_index     7.0.0gauge

      DCP sequence numbers yet to be indexed for an index

      fts_num_pindexes_actual     7.0.0gauge

      Total number of pindexes currently

      fts_num_pindexes_target     7.0.0gauge

      Planned/expected number of pindexes

      fts_num_recs_to_persist     7.0.0gauge

      The number of entries (terms, records, dictionary rows, etc) by Bleve not yet persisted to storage

      fts_num_root_filesegments     7.0.0gauge

      The number of file segments in the root segment

      fts_num_root_memorysegments     7.0.0gauge

      The number of memory segments in the root segment

      fts_pct_cpu_gc     7.0.0gauge / percent

      The percentage of CPU time spent by an index in garbage collection

      fts_pct_used_ram     7.6.0gauge / percent

      The percentage of RAM quota used by the fts service

      fts_tot_batches_flushed_on_maxops     7.0.0counter

      Total number of batches executed due to the batch size being greater than the maximum number of operations per batch

      fts_tot_batches_flushed_on_timer     7.0.0counter

      Total number of batches executed at regular intervals

      fts_tot_bleve_dest_closed     7.0.0counter

      Total number of times Bleve destinations closed

      fts_tot_bleve_dest_opened     7.0.0counter

      The number of times Bleve destinations opened

      fts_tot_grpc_listeners_closed     7.0.0counter

      Total number of gRPC listeners closed

      fts_tot_grpc_listeners_opened     7.0.0counter

      Total number of gRPC listeners opened

      fts_tot_grpc_queryreject_on_memquota     7.0.0counter

      Total number of gRPC queries rejected due to the memory quota being lesser than the estimated memory required for merging search results from all partitions from the query

      fts_tot_grpcs_listeners_closed     7.0.0counter

      Total number of gRPC SSL listeners closed

      fts_tot_grpcs_listeners_opened     7.0.0counter

      Total number of gRPC SSL listeners opened

      fts_tot_http_limitlisteners_closed     7.0.0counter

      Total number of HTTP limit listeners closed

      fts_tot_http_limitlisteners_opened     7.0.0counter

      Total number of HTTP limit listeners opened

      fts_tot_https_limitlisteners_closed     7.0.0counter

      Total number of HTTPS limit listeners closed

      fts_tot_https_limitlisteners_opened     7.0.0counter

      Total number of HTTPS limit listeners opened

      fts_tot_queryreject_on_memquota     7.0.0counter

      Total number of queries rejected due to the memory quota being lesser than the estimated memory required for merging search results from all partitions from the query

      fts_tot_remote_grpc     7.0.0counter

      Total number of remote(i.e. different node) gRPC requests

      fts_tot_remote_grpc_ssl     7.6.0counter

      Total number of remote(i.e. different node) gRPC SSL requests when adding clients.

      fts_tot_remote_grpc_tls     7.0.0counter

      Total number of remote(i.e. different node) gRPC SSL requests when adding clients.

      fts_tot_remote_http     7.0.0counter

      Total number of remote(i.e. different node) HTTP requests

      fts_tot_remote_http2     7.0.0counter

      Total number of remote(i.e. different node) HTTP SSL requests

      fts_tot_remote_http_ssl     7.6.0counter

      Total number of remote(i.e. different node) HTTP SSL requests

      fts_total_bytes_indexed     7.0.0gauge

      Rate of bytes indexed for an index

      fts_total_bytes_query_results     7.0.0counter / bytes

      Size of results coming back from full text queries for search results, including the entire size of the JSON sent

      fts_total_compaction_written_bytes     7.0.0counter / bytes

      Number of bytes written to disk as a result of compaction

      fts_total_gc     7.0.0counter

      The number of garbage collection events triggered

      fts_total_grpc_internal_queries     7.0.0counter

      The number of internal gRPC requests from the co-ordinating node for the query to other nodes, for an index

      fts_total_grpc_queries     7.0.0counter

      The total number of queries, using gRPC for streaming, for an index

      fts_total_grpc_queries_error     7.0.0counter

      The number of queries that resulted in an error, using gRPC for streaming, for an index

      fts_total_grpc_queries_slow     7.0.0counter

      The number of queries in the slow query log, using gRPC for streaming, for an index

      fts_total_grpc_queries_timeout     7.0.0counter

      The number of queries that exceeded the timeout, using gRPC for streaming, for an index

      fts_total_internal_queries     7.0.0counter

      The number of internal queries from the co-ordinating node to other nodes, per unit time for an index

      fts_total_knn_searches     7.6.0counter

      Total bleve knn search operations

      fts_total_queries     7.0.0counter

      The number of full text queries per second for an index

      fts_total_queries_bad_request_error     7.6.0counter

      The number of FTS queries that resulted in an error due to a bad request

      fts_total_queries_consistency_error     7.6.0counter

      The number of FTS queries that resulted in an error due to a failure to meet consistency requirements

      fts_total_queries_error     7.0.0counter

      The number of FTS queries for an index that resulted in an error

      fts_total_queries_max_result_window_exceeded_error     7.6.0counter

      The number of FTS queries that resulted in an error due to exceeding the maximum result window

      fts_total_queries_partial_results_error     7.6.0counter

      The number of FTS queries that resulted in an error due to only partial results being returned

      fts_total_queries_rejected_by_herder     7.0.0counter

      The number of queries rejected by the app herder when the memory used exceeds the application's query quota

      fts_total_queries_search_in_context_error     7.6.0counter

      The number of FTS queries that resulted in an error while searching in context

      fts_total_queries_slow     7.0.0counter

      The number of FTS queries in the slow query log

      fts_total_queries_timeout     7.0.0counter

      The number of FTS queries for an index that exceeded the timeout

      fts_total_request_time     7.0.0counter / nanoseconds

      Total time spent processing query requests for an index

      fts_total_term_searchers     7.0.0counter

      Number of bleve term searchers

      fts_total_term_searchers_finished     7.0.0counter

      Total term searchers that have finished serving a query

      fts_total_vectors     7.6.1gauge

      The total number of vectors indexed