Does ZMQ compress messages?

Question

I'm interested in finding out if ZMQ already compresses messages before sending them out so as to not do this myself which would be redundant to compress a message twice.

If it does do this is it automatic, or is there an option param to specify?

I'm using java but it really doesn't matter I guess for libzmq it doesn't matter.

score 4 · Accepted Answer · answered Mar 17 '15 at 09:53

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ZMQ is not performing any serialization. You can send messages via socket as String or byte[]. See example here: http://zguide.zeromq.org/java:wuserver

publisher.send(update, 0);

where update is String.

In general I recommend guide here http://zguide.zeromq.org/page:all

answered Mar 17 '15 at 09:53

Szymon Włodarczyk

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+1 for the example which I've used many times! but the question is does .send(string) internally compress the message before "placing" it on the socket? – dtrihinas Mar 17 '15 at 10:18
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I think that under the hood send(String) invokes this method http://zeromq.github.io/jzmq/javadocs/org/zeromq/ZMQ.Socket.html#send(byte[], int) – Szymon Włodarczyk Mar 17 '15 at 10:38
message is not compressed – Szymon Włodarczyk Mar 17 '15 at 10:42

score 2 · Answer 2 · edited Aug 14 '20 at 18:36

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OK so based on the help by Szymon Wlodarczyk I've managed to solve this by first going to the docs enter link description here and then moving on to jeromq (which is a pure java implementation of jmq) and specifically follow the trace: SocketBase > Pub > XPub > Dist you'll find out that there is no compression.

edited Aug 14 '20 at 18:36

shashwat

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answered Mar 17 '15 at 10:57

dtrihinas

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Does ZMQ compress messages?

2 Answers2