journal-remote: increase memory limit per connection to avoid errors with HTTPS

Explicitly set MHD_OPTION_CONNECTION_MEMORY_LIMIT to a larger value,
when setting up microhttpd, to give more memory per HTTP(S) connection.

This way systemd-journal-remote can now prevent microhttpd from failing
in creating response headers with messages like "Not enough memory for
write", especially when lots of HTTPS requests arrive. That's precisely
because MHD_OPTION_CONNECTION_MEMORY_LIMIT in libmicrohttpd defaults to
32768, which is in practice insufficient in this case.
See also https://gnunet.org/bugs/view.php?id=4007 for more details.

Fixes: https://github.com/coreos/bugs/issues/927
This commit is contained in:
Dongsu Park 2015-10-21 14:51:10 +02:00
parent cb2266f931
commit 5e3efccfc9

View file

@ -648,11 +648,12 @@ static int setup_microhttpd_server(RemoteServer *s,
{ MHD_OPTION_NOTIFY_COMPLETED, (intptr_t) request_meta_free},
{ MHD_OPTION_EXTERNAL_LOGGER, (intptr_t) microhttpd_logger},
{ MHD_OPTION_LISTEN_SOCKET, fd},
{ MHD_OPTION_CONNECTION_MEMORY_LIMIT, DATA_SIZE_MAX},
{ MHD_OPTION_END},
{ MHD_OPTION_END},
{ MHD_OPTION_END},
{ MHD_OPTION_END}};
int opts_pos = 3;
int opts_pos = 4;
int flags =
MHD_USE_DEBUG |
MHD_USE_DUAL_STACK |