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Installing, Configuring And Troubleshooting Coldfusion

Installing, Configuring And Troubleshooting Coldfusion. Mark A Kruger CFG Ryan Stille CF Webtools. Installing: Prep the Server. Start with a Clean Server Put the following on the desktop Services CPL Command Prompt Perfmon Make sure IIS is installed Change Folder Settings

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Installing, Configuring And Troubleshooting Coldfusion

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  1. Installing, Configuring And Troubleshooting Coldfusion Mark A Kruger CFG Ryan Stille CF Webtools

  2. Installing: Prep the Server • Start with a Clean Server • Put the following on the desktop • Services CPL • Command Prompt • Perfmon • Make sure IIS is installed • Change Folder Settings • Settings List for CF and IIS

  3. Install: The Installer • Choose Your Poison

  4. Install: The Installer • Choose Your Services

  5. Installer: Finishing Up • Before Anything Happens Log into the Admin • Begin By reviewing all the settings in the Admin against your idea of usage • Add Data sources • Configure CFX Tags, Mappings Etc (all of this should be prepared in advance)

  6. JVM Configuration • The “default” configuration is unsuitable for a production environment • Edit it Using the File System NOT the Administrator: • # Arguments to VM • java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false -XX:MaxPermSize=192m -XX:+UseParallelGC (..followed by some path settings) • This is suitable only for a multi-purpose server where CF is services a few internal users.

  7. JVM Configuration • First Item is Memory Allocation: 2 schools of thought • Min and Max the same as in –Xmx1024 –Xms1024 • Some headroom for young gen recovery as in –Xmx1024 -Xms756 • Beware of Limitations • Windows – 1.5 gigs (max + PermSize) • Linux – 2.5 gigs

  8. JVM Configuration • Garbage Collection • Young Space Vs Old Space • JVM 1.5 allows for specific garbage collectors for each space -server -Dsun.io.useCanonCaches=false -Xmx2048m -Xms2048m -XX:+UseConcMarkSweepGC -XX:+UseParNewGC XX:PermSize=64m -XX:MaxPermSize=192m-XX:NewSize=48m -XX:SurvivorRatio=4 • Other Mem Switches Permsize, maxpermsize, newsize and survivorRatio

  9. The Magic Connector Script • Found in cfusion8/bin/connectors • Can resolve Web site being unable to serve CF • Try it first when you install a new web • Use this one for a single site (site name is case sensitive) @echo off set CFUSION_HOME=*where you put CF* echo You are configuring %1 pause %CFUSION_HOME%\runtime\bin\wsconfig -server coldfusion -ws IIS -site %1 -coldfusion -cfwebroot

  10. Performance • Performance Monitor (Windows)

  11. Running/Queued (Request Stats) Memory Usage Performance – Server Mon.

  12. Performance – Server Mon. • Things You Can’t Find Elsewhere • Threads By Memory • Queries By Memory • Active, Cached and Slowest Queries • Pool Status • Frequently Run Queries

  13. Performance – Server Mon. • Things You Can’t Find Elsewhere • Threads By Memory • Queries By Memory • Active, Cached and Slowest Queries • Pool Status • Frequently Run Queries • Don’t Trust the Session Tracking

  14. Performance – Alerts • Slow or Unresponsive • Memory • Timeouts • JVM Memory • Possible Actions • Run a CFC • Kill Long Threads • Send an Email • Snapshots are useful as well

  15. See Fusion – an Alternative • Cost 300.00 • Great overview Page • Ability to Kill Long Running Threads • Advanced Features • JDBC query monitoring • Alerts (“rules”) • Stack traces • Logging

  16. Linux Tool - Jconsole • Demo from Ryan

  17. Some Current Issues • Referencing From 2 Persistent Scopes • <cfset session.x = application.fnc(y)/> • Using a Class Loader with 1.6 • Fix by downgrading to 1.5 (FYI we see no performance degradation when doing this) • Memory Limitation • Fix by upgrading to 64 bit (hardware, OS and CF enterprise) or use multi-server.

  18. Downgrading to 1.5 • Demo from Ryan • Install 1.5 SDK • Repoint the jvm.config file • Keep the /runtime/Coldfusion-out.log at the ready to troubleshoot • Restart the Service • Check CF Admin to verify the version

  19. Some Common Issues • Debugging Turned on • No use of Caching • Improper Use of Application Variables • Poor Query Code • A “Default” Installation • Networking Issue (JDBC setup, auto duplex synching etc) • Bad Session Management • Not thinking about agents and bots

  20. Resources • www.robisen.com • JVM Options: • http://blogs.sun.com/watt/resource/jvm-options-list.html • Sun’s Tuning GC http://java.sun.com/docs/hotspot/gc1.4.2/index.html • www.petefreitag.com • www.talkingtree.com/blog/

  21. Q and A

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