On Fri, Oct 23, 2009 at 1:27 PM, Norman Barker <[email protected]> wrote: > Hi, > > is there a way (in Erlang) to open a couchdb document and to iterate > over the document body without having to open up all of the document > in memory? > > I would like to use a chunked response to keep the system having a low > memory overhead. > > Not a particular couch question, is there a method in erlang to find > the size (as in number of bytes) of a particular term? > > many thanks, > > Norman >
Norman, Well, for document JSON we store Erlang term binaries on disk so there's no real way to stream a doc across the wire from disk without loading the whole thing into RAM. Have you noticed CouchDB having memory issues on read loads? Its generally pretty light on its memory requirements for reads. The only way to get the size of a Term in bytes that I know of is the brute force: size(term_to_binary(Term)) method. Paul Davis
