Performance aspects of distributed caches using TTL-based consistency
نویسندگان
چکیده
منابع مشابه
Performance Aspects of Distributed Caches Using TTL-Based Consistency
Web objects are stored and can be requested from numerous servers, including authoritative “origin” servers and caches. Objects can be modified only by their origin servers and weak consistency with cached copies is maintained by limiting their lifetime durations. Copies fetched from origin servers are received with maximum time-to-live (TTL) that equals their lifetime duration whereas copies o...
متن کاملModeling TTL-based Internet Caches
This paper presents a way of modeling the hit rates of caches that use a time-to-live (TTL)-based consistency policy. TTL-based consistency, as exemplified by DNS and Web caches, is a policy in which a data item, once retrieved, remains valid for a period known as the “time-to-live”. Cache systems using large TTL periods are known to have high hit rates and scale well, but the effects of using ...
متن کاملModelling TTL-based Internet Caches
This paper presents a way of modeling the hit rates of caches that use a time-to-live (TTL)-based consistency policy. TTL-based consistency, as exemplified by DNS and Web caches, is a policy in which a data item, once retrieved, remains valid for a period known as the “time-to-live”. Cache systems using large TTL periods are known to have high hit rates and scale well, but the effects of using ...
متن کاملConsistency analysis and evaluation of TTL - based Internet
Consistency algorithms have been proposed for a wide range of applications that include distributed shared memories (DSM), distributed file systems, and databases. Fundamental definitions and operational constraints that are specific for each system do not necessarily translate well to Internet caches. A Web object is consistent if it is identical to the master document at the origin server, at...
متن کاملElastic Provisioning of Cloud Caches: a Cost-aware TTL Approach
We consider elastic resource provisioning in the cloud, focusing on in-memory key-value stores used as caches. Our goal is to dynamically scale resources to the traffic pattern minimizing the overall cost, which includes not only the storage cost, but also the cost due to misses. In fact, a small variation on the cache miss ratio may have a significant impact on user perceived performance in mo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Theoretical Computer Science
سال: 2005
ISSN: 0304-3975
DOI: 10.1016/j.tcs.2004.09.033