To achieve host-path backend routing, we changed behaviour of
--backend-http2-connections-per-worker. It now sets the number of
HTTP/2 physical connections per pattern group if pattern is used in -b
option.
Fixes GH-292
-b option syntax is now <HOST>,<PORT>[;<PATTERN>[:...]]. The optional
<PATTERN>s specify the request host and path it is used for. The
<PATTERN> can contain path, host + path or host. The matching rule is
closely designed to ServeMux in Go programming language.
Currently, we use same number of HTTP/2 sessions per worker with given
backend addresses. New option to specify the number of HTTP/2 session
per worker will follow.
SSL_write requires the same arguments (buf pointer and its length) on
SSL_ERROR_WANT_READ or SSL_ERROR_WANT_WRITE. get_write_limit() may
return smaller length than previously passed to SSL_write, which
violates OpenSSL assumption. To avoid this, we keep last legnth
passed to SSL_write to tls_last_writelen_ if SSL_write indicated I/O
blocking.
For HTTP/1 backend, -b option can be used several times to specify
multiple backend address. HTTP/2 backend does not support multiple
addresses and only uses first address even if multiple addresses are
specified.
This commit adds functionality to customize access logging format in
nghttpx. The format variables are inspired by nginx. The default
format is combined format.
Use the same behaviour the current Google server does: start with 1300
TLS record size and after transmitting 1MiB, change record size to
16384. After 1 second idle time, reset to 1300. Only applies to
HTTP/2 and SPDY upstream connections.
Libevent Openssl filter is very inconvenient in various respect. The
most annoying thing is it somehow emits data when SSL_shutdown is
called. The reason we introduced this filter solution is drop
connection if TLS renegotiation is detected. This commit implements
renegotiation detection and drop connection without filtering.
The existing options --{read,write}-{rate,burst} are per connection.
The new options --worker-{read,write}-{rate,burst} are per worker
thread, which is overall rate limit of all connections worker handles.
We thought that this kind of rewrite can be achieved by the configuration
of the backend severs, but in some configuration, however, it may get
complicated. So we decided to implement at least location rewrite in
nghttpx.
This commit also contains a fix to the bug which prevents the http2
backend request from concatenating header fields with the same value.
Tatsuhiro Tsujikawa
Lucas Pardue