1// Copyright 2019 Google LLC 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15// Common tracing schema definitions: 16 17// The 4 letter tag for this event or operation. All tracing events and 18// operations must have a tag and the tag must be unique. 19attribute "tag"; 20// Log messages for this table should have severity ERROR. Default is INFO. 21attribute "error"; 22// Log messages for this table should have severity WARNING. Default is INFO. 23attribute "warning"; 24// This table represents a tracing span within which child spans or events can 25// be created. The default is that the table represents an event that can be 26// logged but which can not have child spans or events. 27attribute "span"; 28 29