This is the error message that I get when attaching large blob file in a Document.

02:01:12.922 [main] DEBUG o.a.h.i.conn.DefaultClientConnection - Connection 0.0.0.0:41419<->10.30.10.175:8080 closed 02:01:12.922 [main] DEBUG o.a.h.i.c.PoolingClientConnectionManager - Connection released: [id: 3][route: {}->http://10.30.10.175:8080][total kept alive: 0; route allocated: 0 of 2; total allocated: 0 of 20] 02:01:12.922 [main] INFO tv.migo.transcode.util.RESTUtils - org.nuxeo.ecm.automation.client.RemoteException: Server Error 02:01:12.922 [main] INFO tv.migo.transcode.util.RESTUtils - uploading failed.

This is my code from http://doc.nuxeo.com/display/NXDOC56/Using+Nuxeo+Automation+Client

HttpAutomationClient automationClient = new HttpAutomationClient(“http://10.30.10.175:8080/nuxeo/site/automation”);

    Session session = automationClient.getSession("Administrator", "Administrator");

    try {
        // Get The Root
        Document root = (Document) session.newRequest("Document.Fetch").set("value", destinationPath).execute();

        // Create a File Document
        Document documentFolder = (Document) session.newRequest("Document.Create").setInput(root).set("type", "asset").set("name", filename)
                .set("properties", "dc:title=" + TRANSCODED_DIR).execute();
        // Create a File Document
        Document document = (Document) session.newRequest("Document.Create").setInput(documentFolder).set("type", "File").set("name", filename)
                .set("properties", "dc:title=" + filename).execute();

        // Upload The file
        FileBlob fb = new FileBlob(file);
        fb.setMimeType("text/xml");
        // uploading a file will return null since we used HEADER_NX_VOIDOP
        session.newRequest("Blob.Attach").setHeader(Constants.HEADER_NX_VOIDOP, "true").setInput(fb).set("document", document.getPath()).execute();

        logger.info("Done!");
        automationClient.shutdown();
        logger.info("uploading success");
        return document;
    } catch (Exception e) {
        logger.info(e.toString());
    }
    logger.info("uploading failed.");

This code works on smaller size file. I'm wondering if its the Connection-keep-alive should be set true. But how do I do that on Automation Client?