{ "type": "SQLOperator", "node_name": "HDFS_SCAN_NODE", "metric_names": [ "BytesRead" ], "exprs": [ "max", "avg" ], "unit": 5, "rule": { "condition": "vars['IOBound']==True", "expr": "(vars['max'] - vars['avg']) / 100000000 / 5", "message": "Addition IO time cost by the skew (assuming 5 disks)", "label": "Bytes Read Skew", "prio": 2 }, "fix": { "fixable": false } }