Couchbase 2.x equivalent for Couchbase 1.x getBulk method in Java SDK

Java SDK
1

Hey guys

we were using couchbase client 1.4.7, and now we are trying to migrate to the latest version
I noticed that the getBulk method in CouchbaseClient https://github.com/couchbase/couchbase-java-client/blob/1.4.7/src/main/java/com/couchbase/client/CouchbaseClient.java (inherited from MemcachedClient)
has disappeared, and there is no similar bulk methods in the latest version
I would like to know the motives behind this and if there is any performance implications, and what would be the equivalent for this in 2.x

Thanks in advance.

2

Hi Zakaria,

In version 2.x it’s possible to fetch documents in bulk using the asynchronous API (you can still process the results in a blocking/synchronous manner if you prefer). Here’s the documentation for Batching Operations which includes some sample code and talks about the motivation:

The previous Java SDK only provided bulk operations for get(). With the techniques shown above, you can perform any kind of operation as a batch operation.

as well as the performance implications:

Inside the SDK, this provides much more efficient resource utilization because the requests are very quickly stored in the internal Request RingBuffer and the I/O threads are able to pick batches as large as they can. Afterward, whatever server returns a result first it is stored in the list, so there is no serialization of responses going on.

Thanks,
David

3

Thanks a lot for the explanation. It makes more sens now.