src/kudu/util/histogram.proto

// Copyright 2014 Cloudera, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package kudu;

option java_package = "org.kududb";

// Captures the state of an Histogram.
message HistogramSnapshotPB {
  required string type = 1;
  required string name = 2;
  optional string description = 3;
  required string unit = 4;
  optional string label = 19;

  required uint64 max_trackable_value = 5;
  required int32 num_significant_digits = 6;
  required uint64 total_count = 7;
  optional uint64 total_sum = 18;
  required uint64 min = 8;
  required double mean = 9;
  required uint64 percentile_75 = 10;
  required uint64 percentile_95 = 11;
  required uint64 percentile_99 = 12;
  required uint64 percentile_99_9 = 13;
  required uint64 percentile_99_99 = 14;
  required uint64 max = 15;
  repeated uint64 values = 16 [packed = true];
  repeated uint64 counts = 17 [packed = true];
}

message HistogramSnapshotsListPB {
  repeated HistogramSnapshotPB histograms = 1;
}