Support of cluster consistency created how much cache?

Hello

I'm runing Oracle coherence GE 3.6.1 clustered.

Support of cluster consistency created how much cache? type of cache is a distributed Cache.
Cache of overcrowding affects the performance of the pole?

Thank you!

Hello

Your test is probably not very representative of a real system. Have you run this test with just a single JVM? In the real world you could run a cluster of a number of Java virtual machines.

In removeStartWith what you do is iterate over the set of keys to cache and to keep a number of keys - that is going to be fast in a single machine virtual JAVA.
In removeLike you do a query to filter on the cache and consistency builds a new set to match the keys. It's a lot more work and therefore slower.

Your two method names are called "removeXXX' althpough, you do not actually remove anything. If you want to delete the corresponding entries or your methods are very effective ways to make the operation you are trying. With a good group, average the most effective to remove all entries that are preceded by a given string would be something like this...

Filter filter = new LikeFilter(new KeyExtractor(), regex + "%", (char)0, false);
nc.invokeAll(filter, new ConditionalRemove(AlwaysFilter.INSTANCE));

In the above code, the delete operation will happen on the cluster and will be distributed across all nodes in the cluster at the same time will be faster that bringing so everything they touch back and remove them one at a time as you do.

In a true cluster works on the cluster where data is usually much more efficient and faster. If you do performance test there is no point in an environment that is not representative of a real-world deployment.

JK

Tags: Fusion Middleware

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