-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I know serving large BLOBs is rather frowned up using Z2, but I have a requirement to use the zope security machinery prior to serving a blob circa 500Mb. I thought I'd just wrap it in an ExternalFile and it would simply stream to the client. In fact I was even anticipating taking advantage of chunked transfer encoding for HTTP1.1 clients. However, I'm getting out of memory exceptions thrown by the server. This would indicate that no intermediate buffer flushing is occuring at all! What am I missing? Alan -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFBap9OCfroLk4EZpkRAlsPAJ9oztRXnAH8rGzeLY7+hlXKkXB4yQCfQ64I OXcuPhHJmn3V+5y/HDQEN2M= =7YAX -----END PGP SIGNATURE-----