{"id":196,"date":"2007-10-23T14:39:27","date_gmt":"2007-10-23T18:39:27","guid":{"rendered":"http:\/\/onlineappsdba.com\/index.php\/2007\/10\/23\/troubleshooting-oracle-portal-sso-ohs-webcache-oas\/"},"modified":"2007-10-25T05:20:31","modified_gmt":"2007-10-25T09:20:31","slug":"troubleshooting-oracle-portal-sso-ohs-webcache-oas","status":"publish","type":"post","link":"https:\/\/onlineappsdba.com\/index.php\/2007\/10\/23\/troubleshooting-oracle-portal-sso-ohs-webcache-oas\/","title":{"rendered":"Troubleshooting Oracle Portal SSO OHS Webcache OAS"},"content":{"rendered":"

Oracle Portal <\/strong>is part of Oracle Application Server which is part of Oracle Fusion Middle-ware product. In today’s post I am going to cover how to troubleshoot Oracle Portal Issues including Web Cache, Oracle HTTP Server or\u00a0OC4J_Portal.<\/p>\n

\u00a0To know more about Oracle Application Server (OAS) visit\u00a0<\/p>\n

  • Installing Oracle Application Server 10g OAS<\/a><\/li>\n
  • Start\/Stop 10g Oracle Application Server OAS<\/a>
    \n\u00a0\u00a0
    \n1. First thing to check for trouble shooting to check if all components for Oracle Portal are up and running
    \n– Database\u00a0 (on Infra Tier)
    – Database listener (on Infra Tier)
    – OID (Component OID on Infra tier)
    – SSO (HTTP_Server & OC4J_Security on Infra Tier)
    – Portal (HTTP_Server, Web-Cache and OC4J_Portal on Middle Tier)<\/p>\n

    * HTTP_Server on middle tier is different from HTTP_Server on Infra tier (later is used for Single Sign-On)<\/p>\n

    Once you are sure that all services are up & running now follow below procedure<\/p>\n

    2. Check Web Cache<\/strong> – When User type URL for Oracle Portal which is of format http:\/\/hostname.domainname:port\/pls\/portal<\/a>\u00a0request first hits web-cache($ORACLE_HOME\/webcache<\/strong>) on middle tier. So check if request is hitting till web-cache by checking $ORACLE_HOME\/webcache\/access_log\u00a0\u00a0 <\/strong>, access_log will record any request coming to web cache.\u00a0 \u00a0<\/p>\n

    For any issues on Web Cache check $ORACLE_HOME\/webcache\/event<\/strong>_log . <\/strong>If you don’t see request in access_log in under $OH\/webcache\/logs directory, check firewall or load balancer configuration (If Load Balancer is configured)
    \n
    3. Check OHS – <\/strong>Oracle HTTP Server -> \u00a0Web-cache then forward this request to Origin Server which is listening on\u00a0different port (usually one higher than Web Cache Listen Port). This request is against recorded in access_log<\/strong> but this time access_log of OHS which is under $ORACLE_HOME\/Apache\/Apache\/logs\/<\/strong>\u00a0 so check if you see request coming from web cache to OHS.
    \n\u00a0 For any issues in OHS check logs at error_log<\/strong> & error_log_pls<\/strong> in above directory.
    \n
    4. OHS\u00a0mod_rewrite -> <\/strong>Oracle HTTP Server (OHS) checks in httpd.conf to see where \/pls\/portal<\/strong> maps. In httpd.conf<\/strong> there is redirect rule\u00a0which\u00a0redirect any \/pls\/portal to \/portal\/.. like (RewriteRule (^\/pls\/portal$) \/portal$1 [PT]<\/strong>) so request\u00a0to HTTP Server (Apache Server) internally changes to \/portal..
    \n
    5. OHS to OC4J_Portal-> <\/strong>Apache again try to find where \/portal maps which is defined in file ($ORACLE_HOME\/Apache\/Apache\/conf\/mod_oc4j.conf ) entry like
    \n
    \u00a0\u00a0\u00a0 Oc4jMount \/portal OC4J_Portal
    \u00a0\u00a0\u00a0 Oc4jMount \/portal\/* OC4J_Portal<\/strong>which means request will hit be served by OC4J_Portal\u00a0hence OHS forwards request to OC4J_Portal<\/p>\n

    <\/strong>6. OC4J_Portal<\/strong> then goes to database and pulls out various portion of page (header, footer, sidebar – depending on how you user has defined portal page) from database.<\/p>\n

    For any\u00a0issues in OC4J_Portal check logs at $ORACLE_HOME\/j2ee\/OC4J_Portal\/application-deployments\/portal\/
    \nOC4J_Portal_default_island_1\/application.log
    <\/strong>and
    \n$ORACLE_HOME\/j2ee\/OC4J_Portal\/log\/
    \n<\/strong>OC4J_Portal_default_island_1\/server.log<\/strong>\u00a0

    \n7. Parallel Page Engine (PPE) component in OC4J then assemble this page and return it back to user.<\/li>\n

  • If any page requested by user is protected then Portal will redirect it to Single Sign-On HTTP Server which is another Oracle HTTP Server on Infrastructure Tier.\n

    Stay tuned for process flow in Oracle Single Sign-On and steps on how to troubleshoot Oracle Single Sign-On Issues …..<\/strong><\/li>\n","protected":false},"excerpt":{"rendered":"

    Oracle Portal is part of Oracle Application Server which is part of Oracle Fusion Middle-ware product. In today’s post I […]<\/p>\n","protected":false},"author":115,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[100,42],"tags":[],"class_list":["post-196","post","type-post","status-publish","format-standard","hentry","category-portal","category-troubleshooting"],"yoast_head":"\nTroubleshooting Oracle Portal SSO OHS Webcache OAS -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/onlineappsdba.com\/index.php\/2007\/10\/23\/troubleshooting-oracle-portal-sso-ohs-webcache-oas\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Troubleshooting Oracle Portal SSO OHS Webcache OAS -\" \/>\n<meta property=\"og:description\" content=\"Oracle Portal is part of Oracle Application Server which is part of Oracle Fusion Middle-ware product. 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