Batch request to support processing record as soon as it arrives

Client Libraries Java Client
1

For batch query, clients normally wait until all keys are retrieved from the server nodes before it returns control to the caller. Some clients such as the C client support delivering each record as soon as it arrives, allowing client applications to process data from the fastest server first. (ref https://www.aerospike.com/docs/guide/batch.html) Will Java client support such feature so that caller can be able to process records as soon as possible?

2

The java client already supports delivering each record as soon as it arrives in async batch commands.

	public final void get(EventLoop eventLoop, BatchSequenceListener listener, BatchPolicy policy, List<BatchRead> records) 
	public final void get(EventLoop eventLoop, RecordSequenceListener listener, BatchPolicy policy, Key[] keys)
	public final void get(EventLoop eventLoop, RecordSequenceListener listener, BatchPolicy policy, Key[] keys, String... binNames)
1 Like
3

Thanks a lot! Sorry I missed these methods.

I would like to confirm one more thing using this opportunity. Just to double confirm. Actions (like data parsing) done in listeners will not block event loop, right?

4

No. Listeners are called directly from the event loop thread. Long running actions need to be offloaded to another thread.