Abstract: Aggregation of network traffic source behavior data across network endpoints may be implemented. Indications of endpoint-specific network traffic directed to different network endpoints may be received. Aggregate traffic source behavior data may be generated across multiple aggregation levels. One or more traffic aggregation nodes may be implemented for each aggregation level to maintain different respective portions of the aggregate traffic source behavior data. Different granularity of the aggregate traffic source behavior data may be maintained at each of the aggregation levels. An indication of traffic source behavior for traffic sources may be provided such that responsive actions, such as traffic control actions, may be performed with regard to the traffic sources.

Abstract: A large-scale service utilizes service hosts that generate log files describing aspects of their operation. An indexing service obtains the log files from a log store and/or obtains log data directly from the service hosts. The indexing service also searches the log files for key values and other associated values. The indexing service utilizes a database service to store located key values and the other values in a log index. A user interface component provides functionality for searching the log index for key values and displaying the other values associated with the key values. An application programming interface (API) might also be utilized to query the log index for key values and to thereby obtain the other associated values.

Abstract: Aggregation of network traffic source behavior data across network endpoints may be implemented. Indications of endpoint-specific network traffic directed to different network endpoints may be received. Aggregate traffic source behavior data may be generated across multiple aggregation levels. One or more traffic aggregation nodes may be implemented for each aggregation level to maintain different respective portions of the aggregate traffic source behavior data. Different granularity of the aggregate traffic source behavior data may be maintained at each of the aggregation levels. An indication of traffic source behavior for traffic sources may be provided such that responsive actions, such as traffic control actions, may be performed with regard to the traffic sources.

Abstract: Aggregation of network traffic source behavior data across network endpoints may be implemented. Indications of endpoint-specific network traffic directed to different network endpoints may be received. Aggregate traffic source behavior data may be generated across multiple aggregation levels. One or more traffic aggregation nodes may be implemented for each aggregation level to maintain different respective portions of the aggregate traffic source behavior data. Different granularity of the aggregate traffic source behavior data may be maintained at each of the aggregation levels. An indication of traffic source behavior for traffic sources may be provided such that responsive actions, such as traffic control actions, may be performed with regard to the traffic sources.

Abstract: Improved caching mechanisms are presented herein for use with an in-memory distributed cache and, potentially, other types of caches. One mechanism permits cache clients to wait on a cache key being fetched by one or more other cache clients. When the cache key arrives at the cache, the waiting cache clients may be called back with the cache key. Another mechanism allows a service to push changed values directly into a distributed cache. Yet another mechanism allows the storage of information in a cache that defines dependencies between cached values. The dependency information can be utilized to invalidate cache values that are dependent upon other cached values that have been invalidated.