Patryk Lesiewicz 7b3f187bc6 Upstream: flush low-level buffers on write retry.
If the data to write is bigger than what the socket can send, and the
reminder is smaller than NGX_SSL_BUFSIZE, then SSL_write() fails with
SSL_ERROR_WANT_WRITE. The reminder of payload however is successfully
copied to the low-level buffer and all the output chain buffers are
flushed. This means that retry logic doesn't work because
ngx_http_upstream_process_non_buffered_request() checks only if there's
anything in the output chain buffers and ignores the fact that something
may be buffered in low-level parts of the stack.

Signed-off-by: Patryk Lesiewicz <patryk@google.com>
2017-12-01 15:59:14 -08:00
2017-11-21 18:09:43 +03:00
2017-11-21 18:09:44 +03:00
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