[DXML-5] OutOfMemory errors when emitting large XML documents

Tue, 26 Jun 2012 13:37:51 -0500

Emitting large XML documents, fed from lazy-seqs in data.xml does not work. Currently, the lazy-seq is held in a defrecord, which holds onto the head of the lazy-seq and will force it to all be in memory (eventually consuming all available memory). Example code to reproduce the issue below:

Unable to find source-code formatter for language: clojure. Available languages are: javascript, sql, xhtml, actionscript, none, html, xml, java

(with-open [fw (java.io.FileWriter. "/tmp/lots-of-foo.xml")]
    (xml/emit
       (Element. :some-tags
           {}
           (map #(Element. :foo {} [(str "foo" %)])
                (range 0 10000000)))
       fw))

Clojure JIRA

[DXML-5] OutOfMemory errors when emitting large XML documents