github.com/m3db/m3@v1.5.0/src/aggregator/runtime/options.go (about)

     1  // Copyright (c) 2017 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
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     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package runtime
    22  
    23  import "time"
    24  
    25  const (
    26  	// A default rate limit value of 0 means rate limiting is disabled.
    27  	defaultWriteValuesPerMetricLimitPerSecond = 0
    28  
    29  	// A default rate limit value of 0 means rate limiting is disabled.
    30  	defaultWriteNewMetricLimitPerShardPerSecond = 0
    31  
    32  	// A default warmup duration of 0 means there is no warmup.
    33  	defaultWriteNewMetricNoLimitWarmupDuration = 0
    34  )
    35  
    36  // Options provide a set of options that are configurable at runtime.
    37  type Options interface {
    38  	// SetWriteValuesPerMetricLimitPerSecond sets the rate limit used
    39  	// to cap the maximum number of values allowed to be written per second.
    40  	SetWriteValuesPerMetricLimitPerSecond(value int64) Options
    41  
    42  	// WriteValuesPerMetricLimitPerSecond returns the rate limit used
    43  	// to cap the maximum number of values allowed to be written per second.
    44  	WriteValuesPerMetricLimitPerSecond() int64
    45  
    46  	// SetWriteNewMetricLimitPerShardPerSecond sets the rate limit used
    47  	// to cap the maximum number of new metrics allowed to be written per shard per second.
    48  	SetWriteNewMetricLimitPerShardPerSecond(value int64) Options
    49  
    50  	// WriteNewMetricLimitPerShardPerSecond returns the rate limit used
    51  	// to cap the maximum number of new metrics allowed to be written per shard per second.
    52  	WriteNewMetricLimitPerShardPerSecond() int64
    53  
    54  	// SetWriteNewMetricNoLimitWarmupDuration sets the warmup duration during which
    55  	// rate limiting is not applied for writing new metric series for the purpose
    56  	// of not aggresively limiting new series insertion rate when an instance just
    57  	// comes online and is ingesting a large number of new series during startup.
    58  	// The warmup duration is in effect starting from the time when the first entry
    59  	// is insert into the shard.
    60  	SetWriteNewMetricNoLimitWarmupDuration(value time.Duration) Options
    61  
    62  	// WriteNewMetricNoLimitWarmupDuration returns the warmup duration during which
    63  	// rate limiting is not applied for writing new metric series for the purpose
    64  	// of not aggresively limiting new series insertion rate when an instance just
    65  	// comes online and is ingesting a large number of new series during startup.
    66  	// The warmup duration is in effect starting from the time when the first entry
    67  	// is insert into the shard.
    68  	WriteNewMetricNoLimitWarmupDuration() time.Duration
    69  }
    70  
    71  type options struct {
    72  	writeValuesPerMetricLimitPerSecond   int64
    73  	writeNewMetricLimitPerShardPerSecond int64
    74  	writeNewMetricNoLimitWarmupDuration  time.Duration
    75  }
    76  
    77  // NewOptions creates a new set of runtime options.
    78  func NewOptions() Options {
    79  	return &options{
    80  		writeValuesPerMetricLimitPerSecond:   defaultWriteValuesPerMetricLimitPerSecond,
    81  		writeNewMetricLimitPerShardPerSecond: defaultWriteNewMetricLimitPerShardPerSecond,
    82  		writeNewMetricNoLimitWarmupDuration:  defaultWriteNewMetricNoLimitWarmupDuration,
    83  	}
    84  }
    85  
    86  func (o *options) SetWriteValuesPerMetricLimitPerSecond(value int64) Options {
    87  	opts := *o
    88  	opts.writeValuesPerMetricLimitPerSecond = value
    89  	return &opts
    90  }
    91  
    92  func (o *options) WriteValuesPerMetricLimitPerSecond() int64 {
    93  	return o.writeValuesPerMetricLimitPerSecond
    94  }
    95  
    96  func (o *options) SetWriteNewMetricLimitPerShardPerSecond(value int64) Options {
    97  	opts := *o
    98  	opts.writeNewMetricLimitPerShardPerSecond = value
    99  	return &opts
   100  }
   101  
   102  func (o *options) WriteNewMetricLimitPerShardPerSecond() int64 {
   103  	return o.writeNewMetricLimitPerShardPerSecond
   104  }
   105  
   106  func (o *options) SetWriteNewMetricNoLimitWarmupDuration(value time.Duration) Options {
   107  	opts := *o
   108  	opts.writeNewMetricNoLimitWarmupDuration = value
   109  	return &opts
   110  }
   111  
   112  func (o *options) WriteNewMetricNoLimitWarmupDuration() time.Duration {
   113  	return o.writeNewMetricNoLimitWarmupDuration
   114  }