protected override IEventHubQueueCache CreateCache(IStreamQueueCheckpointer <string> checkpointer, Logger cacheLogger,
IObjectPool <FixedSizeBuffer> bufferPool, TimePurgePredicate timePurge, SerializationManager serializationManager)
{
//set defaultMaxAddCount to 10 so TryCalculateCachePressureContribution will start to calculate real contribution shortly.
var cache = new EventHubQueueCache(defaultMaxAddCount, checkpointer, new EventHubDataAdapter(serializationManager, bufferPool),
EventHubDataComparer.Instance, cacheLogger, new EventHubCacheEvictionStrategy(cacheLogger, timePurge));
_caches.Add(cache);
return(cache);
}
protected override IEventHubQueueCache CreateCache(string partition, EventHubStreamProviderSettings providerSettings, IStreamQueueCheckpointer <string> checkpointer,
Logger cacheLogger, IObjectPool <FixedSizeBuffer> bufferPool, string blockPoolId, TimePurgePredicate timePurge,
SerializationManager serializationManager, EventHubMonitorAggregationDimensions sharedDimensions)
{
var cacheMonitorDimensions = new EventHubCacheMonitorDimensions(sharedDimensions, partition, blockPoolId);
var cacheMonitor = this.CacheMonitorFactory(cacheMonitorDimensions, cacheLogger);
//set defaultMaxAddCount to 10 so TryCalculateCachePressureContribution will start to calculate real contribution shortly
var cache = new EventHubQueueCache(defaultMaxAddCount, checkpointer, new EventHubDataAdapter(serializationManager, bufferPool),
EventHubDataComparer.Instance, cacheLogger, new EventHubCacheEvictionStrategy(cacheLogger, cacheMonitor, providerSettings.StatisticMonitorWriteInterval, timePurge),
cacheMonitor, providerSettings.StatisticMonitorWriteInterval);
this.caches.Add(cache);
return(cache);
}
private IEventHubQueueCache CreateQueueCache(string partition, IStreamQueueCheckpointer <string> checkpointer, Logger cacheLogger)
{
// the same code block as with EventHubAdapterFactory to define default CacheFactory
// except for at the end we put the created cache in CreatedCaches list
if (this.bufferPool == null)
{
this.bufferPool = new FixedSizeObjectPool <FixedSizeBuffer>(adapterSettings.CacheSizeMb, () => new FixedSizeBuffer(1 << 20));
}
if (this.timePurge == null)
{
this.timePurge = new TimePurgePredicate(adapterSettings.DataMinTimeInCache, adapterSettings.DataMaxAgeInCache);
}
//ser defaultMaxAddCount to 10 so TryCalculateCachePressureContribution will start to calculate real contribution shortly.
var cache = new EventHubQueueCache(defaultMaxAddCount, checkpointer, new EventHubDataAdapter(this.SerializationManager, bufferPool, timePurge), EventHubDataComparer.Instance, cacheLogger);
if (adapterSettings.AveragingCachePressureMonitorFlowControlThreshold.HasValue)
{
var avgMonitor = new AveragingCachePressureMonitor(adapterSettings.AveragingCachePressureMonitorFlowControlThreshold.Value, cacheLogger);
cache.AddCachePressureMonitor(avgMonitor);
}
if (adapterSettings.SlowConsumingMonitorPressureWindowSize.HasValue ||
adapterSettings.SlowConsumingMonitorFlowControlThreshold.HasValue)
{
var slowConsumeMonitor = new SlowConsumingPressureMonitor(cacheLogger);
if (adapterSettings.SlowConsumingMonitorFlowControlThreshold.HasValue)
{
slowConsumeMonitor.FlowControlThreshold = adapterSettings.SlowConsumingMonitorFlowControlThreshold.Value;
}
if (adapterSettings.SlowConsumingMonitorPressureWindowSize.HasValue)
{
slowConsumeMonitor.PressureWindowSize = adapterSettings.SlowConsumingMonitorPressureWindowSize.Value;
}
cache.AddCachePressureMonitor(slowConsumeMonitor);
}
this.createdCaches.Add(cache);
return(cache);
}
