internal async Task EnsureProvisionAsync(
bool isCircuitBreakerTripped,
AutoscalingConfigurationSet configurationSet,
CancellationToken cancellationToken = default(CancellationToken))
{
if (configurationSet is GlobalSecondaryIndexAutoscalingConfigurationSet)
{
var indexConfiguration = configurationSet as GlobalSecondaryIndexAutoscalingConfigurationSet;
if (indexConfiguration.IndexName.Equals("*"))
{
await EnsureAllGlobalSecondaryIndexProvisionAsync(isCircuitBreakerTripped, indexConfiguration, cancellationToken).ConfigureAwait(false);
}
else
{
await EnsureGlobalSecondaryIndexProvisionAsync(isCircuitBreakerTripped, indexConfiguration, cancellationToken).ConfigureAwait(false);
}
}
else if (configurationSet is TableAutoscalingConfigurationSet)
{
var tableConfiguration = configurationSet as TableAutoscalingConfigurationSet;
await EnsureTableProvisionAsync(isCircuitBreakerTripped, tableConfiguration, cancellationToken).ConfigureAwait(false);
}
}
private void LogStats(AutoscalingConfigurationSet configuration, DynamoDbThroughput throughput, DynamoDbMetrics metrics)
{
var entityName = configuration.EntityName;
var readsProvisioned = throughput.ReadThroughput;
var writesProvisioned = throughput.WriteThroughput;
var readsConsumed = metrics.ConsumedReadCapacityUnits;
var writesConsumed = metrics.ConsumedWriteCapacityUnits;
var readsPercent = readsConsumed.ToPercentage(readsProvisioned);
var writesPercent = writesConsumed.ToPercentage(writesProvisioned);
structuredLogger.Information(
"{EntityName}:reads {ReadsConsumed}/{ReadsProvisioned},{ReadsPercent}%,->{ReadConsumptionDirection},{ReadThrottleEvents}",
entityName, readsConsumed, readsProvisioned, readsPercent, metrics.ReadConsumptionDirection.ToString("F4"), metrics.ReadThrottleEvents);
structuredLogger.Information(
"{EntityName}:writes {WritesConsumed}/{WritesProvisioned},{WritesPercent}%,->{WriteConsumptionDirection},{WriteThrottleEvents}",
entityName, writesConsumed, writesProvisioned, writesPercent, metrics.WriteConsumptionDirection.ToString("F4"), metrics.WriteThrottleEvents);
}
internal DynamoDbTableThroughput EnsureProvision(
bool isCircuitBreakerTripped,
DynamoDbTableThroughput provisioned,
DynamoDbMetrics metrics,
AutoscalingConfigurationSet configuration)
{
var updatedReads = EnsureProvision(isCircuitBreakerTripped, provisioned.ReadThroughput, metrics.ReadsThroughputMetrics, configuration.Reads);
var updatedWrites = EnsureProvision(isCircuitBreakerTripped, provisioned.WriteThroughput, metrics.WritesThroughputMetrics, configuration.Writes);
var updated = new DynamoDbTableThroughput { ReadThroughput = updatedReads, WriteThroughput = updatedWrites };
return updated;
}
