NORTH AMERICA OCTOBER 3 - 6, 2022 NEW ORLEANS LOUISIANA WWW.APACHECON.COM ## Proxing to tomcat with httpd Jean-Frederic Clere Principal Software Engineer / Red Hat ## What I will cover • Proxy what and reverse proxy - • Supported by httpd ## Demultiplexing h2 in proxy • Keep the back-end unchanged • Keep the overhead h2 in the proxy ## Other proxies • HAProxy (in the cloud / openshift for example) • mod cluster (httpd dynamic load balancer) • Undertow proxy (jboss servlet container) • Ingress (in kubernetes, well

However, there are cases where memory-mapping can hurt the performance or even the stability of the httpd: - On some operating systems, mmap does not scale as well as read(2) when the number of CPUs increases read and send mechanics. However, there are cases where using sendfile can harm the stability of the httpd: - Some platforms may have broken sendfile support that the build system did not detect, especially several MPMs from which to choose. The choice of MPM can affect the speed and scalability of the httpd: - The worker MPM uses multiple child processes with many threads each. Each thread handles one connection

per-module LogLevel configuration. • mod_proxy_scgi: The default setting for PATH_INFO has changed from httpd 2.2, and some web applications will no longer operate properly with the new PATH_INFO setting. The to 2.4 authorization directives. ■ Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. ■ Invalid command ' authorization.mod_luaEmbeds the Lua language into httpd, for configuration and small business logic functions. (Experimental) mod_log_debug

per-module LogLevel configuration. • mod_proxy_scgi: The default setting for PATH_INFO has changed from httpd 2.2, and some web applications will no longer operate properly with the new PATH_INFO setting. The to 2.4 authorization directives. ■ Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. ■ Invalid command ' authorization.mod_luaEmbeds the Lua language into httpd, for configuration and small business logic functions. (Experimental) mod_log_debug

1 error.log - AH01797: client denied by server configuration: /var/www/html/server-status Why httpd denies access to servers-status even if the configuration seems to allow it? Because mod access compat per-module LogLevel configuration. - mod_proxy_scgi: The default setting for PATH_INFO has changed from httpd 2.2, and some web applications will no longer operate properly with the new PATH_INFO setting. The to 2.4 authorization directives. - Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. - Invalid command '

1 error.log - AH01797: client denied by server configuration: /var/www/html/server-status Why httpd denies access to servers-status even if the configuration seems to allow it? Because mod access compat per-module LogLevel configuration. - mod_proxy_scgi: The default setting for PATH_INFO has changed from httpd 2.2, and some web applications will no longer operate properly with the new PATH_INFO setting. The to 2.4 authorization directives. - Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. - Invalid command '

to 2.4 authorization directives. - Ignoring deprecated use of DefaultType in line NN of /path/to/httpd.conf - remove DefaultType and replace with other configuration settings. - Invalid command ' without interfering with authentication or authorization.| |mod\_lua|Embeds the Lua language into httpd, for configuration and small business logic functions. (Experimental)| ## mod_log_debug Allows the pre_config and open_logs hooks. It also runs before the test_config hook when the -t option is passed to httpd. The check_config hook allows modules to review interdependent configuration directive values and

should edit httpd.conf to include the relevant mod ssl directives and then use apachectl start to start the server. An example configuration to activate mod ssl has been included in conf/extra/httpd-ssl.conf event MPMs now allow httpd to be shutdown gracefully via the graceful-stop signal. The GracefulShutdownTimeout directive has been added to specify an optional timeout, after which httpd will terminate regardless colspan="2">Version 5.0 of the Perl Compatible Regular Expression Library (PCRE) is now included. httpd can be configured to use a system installation of PCRE by passing the --with-pcre flag to configure

should edit httpd.conf to include the relevant mod ssl directives and then use apachectl start to start the server. An example configuration to activate mod ssl has been included in conf/extra/httpd-ssl.conf event MPMs now allow httpd to be shutdown gracefully via the graceful-stop signal. The GracefulShutdownTimeout directive has been added to specify an optional timeout, after which httpd will terminate regardless colspan="2">Version 5.0 of the Perl Compatible Regular Expression Library. (PCRE) is now included. httpd can be configured to use a system installation of PCRE by passing the --with-pcre flag to configure

should edit httpd.conf to include the relevant mod ssl directives and then use apachectl start to start the server. An example configuration to activate mod ssl has been included in conf/extra/httpd-ssl.conf event MPMs now allow httpd to be shutdown gracefully via the graceful-stop signal. The GracefulShutdownTimeout directive has been added to specify an optional timeout, after which httpd will terminate regardless colspan="2">Version 5.0 of the Perl Compatible Regular Expression Library (PCRE) is now included. httpd can be configured to use a system installation of PCRE by passing the --with-pcre flag to configure