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From "Robert Newson (JIRA)" <>
Subject [jira] [Commented] (COUCHDB-1743) Make the view server & protocol faster
Date Mon, 29 Apr 2013 15:14:16 GMT


Robert Newson commented on COUCHDB-1743:

Are these ideas backed with benchmark data?

Moving to more stateful view servers sounds wrong to me because couchjs processes are used
for many different view groups over time.

Where are the bottlenecks in the current view server protocol? I think we all agree that we
can make this faster but I'd like to see the discovery phase first.

Finally, speeding a single view index is a laudable goal but let's not lose sight of the fact
that with lots of view groups building in parallel we do exercise multiple cores quite well.
If each of those view servers is internally parallel, we'll impact that.

Paul Davis has suggested a single couchjs process per couchdb node (rather than a pool of
them) that internally manages the multiple view group states. That plus some batching or pipelining
of requests gets you a very long way without great changes to the protocol.

Just my 2c but I'd love to see data.

> Make the view server & protocol faster
> --------------------------------------
>                 Key: COUCHDB-1743
>                 URL:
>             Project: CouchDB
>          Issue Type: Improvement
>            Reporter: Dave Cottlehuber
>              Labels: couchdb, erlang, gsoc2013, html, javascript, nodejs, rest
> View server protocol enhancements/refactoring - unix sockets, pipelining, different wire
format etc. Faster!!

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