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Outputs statistical I/O information contained in db.serverStatus().
Additional metrics
mongodb_wiredtiger_connection_read_IO_s
mongodb_wiredtiger_connection_write_IO_s
mongodb_wiredtiger_blockmanager_read_blocks_total
mongodb_wiredtiger_blockmanager_read_bytes_total
mongodb_wiredtiger_blockmanager_write_bytes_total
mongodb_wiredtiger_blockmanager_write_blocks_total
mongodb_wiredtiger_cache_read_time_usecs
mongodb_wiredtiger_cache_write_time_usecs
Mongodb_wiredtiger_cursor_calls {type = "create"}
Mongodb_wiredtiger_cursor_calls {type = "Insert"}
Mongodb_wiredtiger_cursor_calls {type = "Modify"}
Mongodb_wiredtiger_cursor_calls {type = "Remove"}
Mongodb_metrics_agg_stage_counter {type = "Lookup"}
Test
We are testing on the local machine using MongoDB (version: 4).