Jorge, Thank you for the feedback. I was going to look at the native APR once I got everything configured correctly. Is this necessary for running the AJP connector? Does anyone run Apache to Tomcat in production? If so, can you please share your experience and some feedback on how you configured it.
Thank you, George On Wed, Oct 1, 2008 at 10:43 AM, Jorge Medina <[EMAIL PROTECTED]> wrote: > Not sure if this help: > > > > Are you using Tomcat Native Library (based in APR too)? > > It would allow you to specify some parameters of the AJP connector. > > > > http://tomcat.apache.org/tomcat-6.0-doc/printer/apr.html > > > > > > -Jorge > > > ------------------------------ > > *From:* George Mashini [mailto:[EMAIL PROTECTED] > *Sent:* Tuesday, September 30, 2008 8:34 PM > *To:* users > *Subject:* [EMAIL PROTECTED] Proxy to Tomcat AJP > > > > Hello, > > > I setup Apache to proxy to Tomcat using AJP, currently without SSL. This > is being used to connect a Flex application that uses AMF to Java on the > back end. All AMF calls are done using a POST to a servlet. I have 3 > tomcat instances running on separate ports. Login is used for logging into > the application. NA1 and NA2 are the application servers. This is running > on RH Enterprise Linux 5, Apache HTTPD 2.2.3 and Tomcat 6.0.14 > > It all appears to work fine until I try to stress test it or someone uses > the application for an extended period of time. The errors that we > encounter are either connection refused or hung connections, where the > connection is alive but never returns a response. At one point the > connection would drop after a few minutes when it got hung and I would get > APR errors in Apache and Broken pipe errors in Tomcat, but after changing > some HTTPD configuration settings it now just stays hung forever. I run the > same stress tests against Tomcat directly and they all complete without > errors. I researched the configuration for each side of the connection, but > I cannot find what I am doing wrong. I am including each piece of the > configuration. Any help would be really appreciated. Sorry for the lengthy > email. > > Thank you, > > HTTPD.conf > > ####################################### > # START HTTPD.CONF > ####################################### > > ServerTokens OS > ServerRoot "/etc/httpd" > PidFile run/httpd.pid > Timeout 120 > KeepAlive Off > MaxKeepAliveRequests 0 > KeepAliveTimeout 15 > > <IfModule prefork.c> > StartServers 8 > MinSpareServers 5 > MaxSpareServers 20 > ServerLimit 256 > MaxClients 256 > MaxRequestsPerChild 4000 > </IfModule> > > > <IfModule worker.c> > StartServers 2 > MaxClients 150 > MinSpareThreads 25 > MaxSpareThreads 75 > ThreadsPerChild 25 > MaxRequestsPerChild 0 > </IfModule> > > Listen 80 > > LoadModule auth_basic_module modules/mod_auth_basic.so > LoadModule auth_digest_module modules/mod_auth_digest.so > LoadModule authn_file_module modules/mod_authn_file.so > LoadModule authn_alias_module modules/mod_authn_alias.so > LoadModule authn_anon_module modules/mod_authn_anon.so > LoadModule authn_dbm_module modules/mod_authn_dbm.so > LoadModule authn_default_module modules/mod_authn_default.so > LoadModule authz_host_module modules/mod_authz_host.so > LoadModule authz_user_module modules/mod_authz_user.so > LoadModule authz_owner_module modules/mod_authz_owner.so > LoadModule authz_groupfile_module modules/mod_authz_groupfile.so > LoadModule authz_dbm_module modules/mod_authz_dbm.so > LoadModule authz_default_module modules/mod_authz_default.so > LoadModule ldap_module modules/mod_ldap.so > LoadModule authnz_ldap_module modules/mod_authnz_ldap.so > LoadModule include_module modules/mod_include.so > LoadModule log_config_module modules/mod_log_config.so > LoadModule logio_module modules/mod_logio.so > LoadModule env_module modules/mod_env.so > LoadModule ext_filter_module modules/mod_ext_filter.so > LoadModule mime_magic_module modules/mod_mime_magic.so > LoadModule expires_module modules/mod_expires.so > LoadModule deflate_module modules/mod_deflate.so > LoadModule headers_module modules/mod_headers.so > LoadModule usertrack_module modules/mod_usertrack.so > LoadModule setenvif_module modules/mod_setenvif.so > LoadModule mime_module modules/mod_mime.so > LoadModule dav_module modules/mod_dav.so > LoadModule status_module modules/mod_status.so > LoadModule autoindex_module modules/mod_autoindex.so > LoadModule info_module modules/mod_info.so > LoadModule dav_fs_module modules/mod_dav_fs.so > LoadModule vhost_alias_module modules/mod_vhost_alias.so > LoadModule negotiation_module modules/mod_negotiation.so > LoadModule dir_module modules/mod_dir.so > LoadModule actions_module modules/mod_actions.so > LoadModule speling_module modules/mod_speling.so > LoadModule userdir_module modules/mod_userdir.so > LoadModule alias_module modules/mod_alias.so > LoadModule rewrite_module modules/mod_rewrite.so > LoadModule proxy_module modules/mod_proxy.so > LoadModule proxy_balancer_module modules/mod_proxy_balancer.so > LoadModule proxy_ftp_module modules/mod_proxy_ftp.so > LoadModule proxy_http_module modules/mod_proxy_http.so > LoadModule proxy_connect_module modules/mod_proxy_connect.so > LoadModule cache_module modules/mod_cache.so > LoadModule suexec_module modules/mod_suexec.so > LoadModule disk_cache_module modules/mod_disk_cache.so > LoadModule file_cache_module modules/mod_file_cache.so > LoadModule mem_cache_module modules/mod_mem_cache.so > LoadModule cgi_module modules/mod_cgi.so > LoadModule version_module modules/mod_version.so > > Include conf.d/*.conf > > User apache > Group apache > > ServerAdmin [EMAIL PROTECTED] > #ServerName www.example.com:80 > > UseCanonicalName Off > DocumentRoot "/srv/www" > > <Directory /> > Options FollowSymLinks > AllowOverride None > </Directory> > > <Directory "/srv/www"> > Options Indexes FollowSymLinks > AllowOverride None > Order allow,deny > Allow from all > </Directory> > > <IfModule mod_userdir.c> > UserDir disable > </IfModule> > > DirectoryIndex index.html index.html.var > > AccessFileName .htaccess > > <Files ~ "^\.ht"> > Order allow,deny > Deny from all > </Files> > > TypesConfig /etc/mime.types > > DefaultType text/plain > > <IfModule mod_mime_magic.c> > # MIMEMagicFile /usr/share/magic.mime > MIMEMagicFile conf/magic > </IfModule> > > HostnameLookups Off > ErrorLog logs/error_log > LogLevel warn > > LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" > combined > LogFormat "%h %l %u %t \"%r\" %>s %b" common > LogFormat "%{Referer}i -> %U" referer > LogFormat "%{User-agent}i" agent > > CustomLog logs/access_log combined > > ServerSignature On > > Alias /icons/ "/var/www/icons/" > > <Directory "/var/www/icons"> > Options Indexes MultiViews > AllowOverride None > Order allow,deny > Allow from all > </Directory> > > <IfModule mod_dav_fs.c> > # Location of the WebDAV lock database. > DAVLockDB /var/lib/dav/lockdb > </IfModule> > > ScriptAlias /cgi-bin/ "/var/www/cgi-bin/" > > <Directory "/var/www/cgi-bin"> > AllowOverride None > Options None > Order allow,deny > Allow from all > </Directory> > > IndexOptions FancyIndexing VersionSort NameWidth=* HTMLTable > > AddIconByEncoding (CMP,/icons/compressed.gif) x-compress x-gzip > > AddIconByType (TXT,/icons/text.gif) text/* > AddIconByType (IMG,/icons/image2.gif) image/* > AddIconByType (SND,/icons/sound2.gif) audio/* > AddIconByType (VID,/icons/movie.gif) video/* > > AddIcon /icons/binary.gif .bin .exe > AddIcon /icons/binhex.gif .hqx > AddIcon /icons/tar.gif .tar > AddIcon /icons/world2.gif .wrl .wrl.gz .vrml .vrm .iv > AddIcon /icons/compressed.gif .Z .z .tgz .gz .zip > AddIcon /icons/a.gif .ps .ai .eps > AddIcon /icons/layout.gif .html .shtml .htm .pdf > AddIcon /icons/text.gif .txt > AddIcon /icons/c.gif .c > AddIcon /icons/p.gif .pl .py > AddIcon /icons/f.gif .for > AddIcon /icons/dvi.gif .dvi > AddIcon /icons/uuencoded.gif .uu > AddIcon /icons/script.gif .conf .sh .shar .csh .ksh .tcl > AddIcon /icons/tex.gif .tex > AddIcon /icons/bomb.gif core > > AddIcon /icons/back.gif .. > AddIcon /icons/hand.right.gif README > AddIcon /icons/folder.gif ^^DIRECTORY^^ > AddIcon /icons/blank.gif ^^BLANKICON^^ > > DefaultIcon /icons/unknown.gif > > ReadmeName README.html > HeaderName HEADER.html > > IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t > > AddLanguage ca .ca > AddLanguage cs .cz .cs > AddLanguage da .dk > AddLanguage de .de > AddLanguage el .el > AddLanguage en .en > AddLanguage eo .eo > AddLanguage es .es > AddLanguage et .et > AddLanguage fr .fr > AddLanguage he .he > AddLanguage hr .hr > AddLanguage it .it > AddLanguage ja .ja > AddLanguage ko .ko > AddLanguage ltz .ltz > AddLanguage nl .nl > AddLanguage nn .nn > AddLanguage no .no > AddLanguage pl .po > AddLanguage pt .pt > AddLanguage pt-BR .pt-br > AddLanguage ru .ru > AddLanguage sv .sv > AddLanguage zh-CN .zh-cn > AddLanguage zh-TW .zh-tw > > LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no > pl pt pt-BR ru sv zh-CN zh-TW > > ForceLanguagePriority Prefer Fallback > > AddDefaultCharset UTF-8 > > AddType application/x-compress .Z > AddType application/x-gzip .gz .tgz > > AddHandler type-map var > > AddType text/html .shtml > > Alias /error/ "/var/www/error/" > > <IfModule mod_negotiation.c> > <IfModule mod_include.c> > <Directory "/var/www/error"> > AllowOverride None > Options IncludesNoExec > AddOutputFilter Includes html > AddHandler type-map var > Order allow,deny > Allow from all > LanguagePriority en es de fr > ForceLanguagePriority Prefer Fallback > </Directory> > </IfModule> > </IfModule> > > BrowserMatch "Mozilla/2" nokeepalive > BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0 > BrowserMatch "RealPlayer 4\.0" force-response-1.0 > BrowserMatch "Java/1\.0" force-response-1.0 > BrowserMatch "JDK/1\.0" force-response-1.0 > BrowserMatch "Microsoft Data Access Internet Publishing Provider" > redirect-carefully > BrowserMatch "MS FrontPage" redirect-carefully > BrowserMatch "^WebDrive" redirect-carefully > BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully > BrowserMatch "^gnome-vfs/1.0" redirect-carefully > BrowserMatch "^XML Spy" redirect-carefully > BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully > > <VirtualHost *:80> > ServerName xyz.net > </VirtualHost> > > <VirtualHost *:80> > ServerName login.xyz.net > ProxyPass / ajp://localhost:8009/ > ProxyRequests Off > ProxyPassReverse / ajp://localhost:8009/ > ProxyPreserveHost On > </VirtualHost> > > <VirtualHost *:80> > ServerName na1.xyz.net > ProxyPass / ajp://localhost:8010/ max=5 > ProxyRequests Off > ProxyPassReverse / ajp://localhost:8010/ > ProxyPreserveHost On > </VirtualHost> > > <VirtualHost *:80> > ServerName na2.xyz.net > ProxyPass / ajp://localhost:8011/ max=20 > ProxyPassReverse / ajp://localhost:8010/ > ProxyVia On > ProxyPreserveHost On > </VirtualHost> > > ####################################### > # END HTTPD.CONF > ####################################### > > workers.properties in httpd/conf > > ####################################### > # START workers.properties > ####################################### > > # List workers > worker.list=login, NA1, NA2 > # > # Define loginn > worker.login.port=8009 > worker.login.host=localhost > worker.login.type=ajp13 > worker.login.cachesize=10 > worker.login.cache_timeout=600 > worker.login.socket_timeout=300 > > # Define NA1 > worker.NA1.port=8010 > worker.NA1.host=localhost > worker.NA1.type=ajp13 > worker.NA1.cachesize=10 > worker.NA1.cache_timeout=600 > worker.NA1.socket_timeout=300 > > # Define NA2 > worker.NA2.port=8011 > worker.NA2.host=localhost > worker.NA2.type=ajp13 > worker.NA2.cachesize=10 > worker.NA2.cache_timeout=600 > worker.NA2.socket_timeout=300 > > ####################################### > # END workers.properties > ####################################### > > proxy_ajp.conf in httpd/conf.d > > ####################################### > # START proxy_ajp.conf > ####################################### > > LoadModule proxy_ajp_module modules/mod_proxy_ajp.so > > ####################################### > # END proxy_ajp.conf > ####################################### > > Server.xml for NA1 tomact > > ####################################### > # START server.xml > ####################################### > > <Server port="8005" shutdown="SHUTDOWN"> > > <Listener className="org.apache.catalina.core.AprLifecycleListener" > SSLEngine="on" /> > <Listener className="org.apache.catalina.core.JasperListener" /> > <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" > /> > <Listener > className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> > > <GlobalNamingResources> > <Resource name="UserDatabase" auth="Container" > type="org.apache.catalina.UserDatabase" > description="User database that can be updated and saved" > factory="org.apache.catalina.users.MemoryUserDatabaseFactory" > pathname="conf/tomcat-users.xml" /> > </GlobalNamingResources> > > <Service name="Catalina"> > <Connector port="8087" protocol="HTTP/1.1" > connectionTimeout="20000" > redirectPort="443" /> > <!-- Define an AJP 1.3 Connector on port 8009 --> > <Connector > port="8010" > protocol="AJP/1.3" > redirectPort="8443" > acceptCount="100" > maxThreads="400"/> > > <Engine name="Catalina" defaultHost="localhost"> > <Realm className="org.apache.catalina.realm.UserDatabaseRealm" > resourceName="UserDatabase"/> > <Host name="localhost" appBase="webapps" > unpackWARs="true" autoDeploy="true" > xmlValidation="false" xmlNamespaceAware="false"> > </Host> > </Engine> > </Service> > </Server> > > ####################################### > # END server.xml > #######################################EN > > >
