We can conclude that an ideal cache would combine TTL and write through features. This can be avoided by having the nodes communicating with each other so that entry invalidations can be propagated. On the other hand, in the case of write through caches if there are more than one of these caches in a cluster, then we have again consistency issues between those. However, for example in the case of caches having entries with TTL if the frequency of access to an entry is less than TTL, again there is no use. Even if the applications heavily perform "get"s, then there appears a consistency issue: when data is changed within the database, what is the reaction of local data cache, how these changes are handled? This is the point where concepts like time-to-live (TTL) or write-through come as solutions. However, when the database is saturated or if the applications perform mostly "put" operations, this approach is of no use, since it insulates the database only from the "get" loads. Purpose is to protect the database from excessive loads. This is performed using technologies like external key-value storages or second level caching. Then, there is the idea of keeping copies of data next to the database. This leads to a large amount of money or manpower. To increase the performance capabilities in a conventional architecture, a faster machine is required or utilization of the current resources should be tuned. Basically, applications are talking directly with a database which has its backup as another machine. Why Hazelcast?ĭata is the essence in software sytems and in conventional architectures, relational database persists and provides access to data. Just add the hazelcast.jar into your classpath and start coding. Hazelcast helps architects and developers to easily design and develop faster, highly scalable and reliable applications for their businesses.ĭistributed implementations of java.util. Hazelcast is a clustering and highly scalable data distribution platform for Java.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |