Enable Marlin on Tomcat 8 Windows

[Derek Watling]

I come from a Windows background and I am trying to enable Marlin to work with GeoServer on a Windows server.

I am running Tomcat 8.0.9 with the Geoserver WAR deployment.

• I created a Marlin subdirectory in the Java directory, downloaded the Marlin 0.7.1 jar files and copied them to C:\Program Files\Java\Marlin\
  
• I then opened the Tomcat monitor application and

1. on the "Startup" tab added
   java -Xbootclasspath/a:"C:\Program Files\Java\Marlin\marlin-0.7.1-Unsafe.jar"
   to the arguments, above "start",
2. and on the "Java" tab added
   -Dsun.java2d.renderer=org.marlin.pisces.PiscesRenderingEngine
   to the end of the Java Options
3. restarted Tomcat and checked the log file
   C:\Program Files\Apache Software Foundation\Tomcat 8.0\logs\tomcat8-stderr.2015-11-24.log
   Can't find any reference to Marlin in this log.
   

Where am I going wrong?

[Laurent Bourgès]

Hi,

You could look at this topic on the forum:
https://groups.google.com/forum/#!topic/marlin-renderer/JXNNZDSqxFU

You'll get Marlin information in the tomcat logs once you have sent a map request.

You could use the simple test scripts I wrote:
https://github.com/bourgesl/marlin-renderer/tree/master/tomcat_samples

Laurent

[Derek Watling]

Thank you for the response.

I downloaded the test scripts and ran draw_shape.jsp which draws a red diamond on a white background. I then ran check_renderer.jsp and get the following output:

Current RenderingEngine implementation:

sun.dc.DuctusRenderingEngine

---

System properties:

sun.java2d.renderer = org.marlin.pisces.PiscesRenderingEngine

Marlin options (if enabled)

sun.java2d.renderer.useThreadLocal = true

sun.java2d.renderer.pixelsize = 2048

The only catalina log files I can find are in "C:\Program Files\Apache Software Foundation\Tomcat 8.0\logs" and named with the date, eg. "catalina.2015-11-24.log". While I can see this log is being updated it dose not contain any reference to "Marlin" or "PiscesRenderingEngine".

I have tried with adding C:\Program Files\Java\Marlin\marlin-0.7.1-Unsafe.jar to the Java Classpath on the "Java" tab in the Tomcat monitor application and adding java -Xbootclasspath/a:"C:\Program Files\Java\Marlin\marlin-0.7.1-Unsafe.jar" to the Arguments on the "Startup" tab, re-starting Tomcat after each change and re-running draw_shape.jsp and check_renderer.jsp. I get the same result each time!

[Laurent Bourgès]

Hi,

Your tests reports you are using Ductus not Marlin yet!

I guess your command line is wrong:

java -Xbootclasspath/a:"C:\Program Files\Java\Marlin\marlin-0.7.1-Unsafe.jar"

Try without quotes and using slashes not backslashes (unix like):
java -Xbootclasspath/a:C:/Program~1/Java/Marlin/marlin-0.7.1-Unsafe.jar

It is a typical issue with long file names on windows....
Maybe move it to a simpler folder like c:/marlin/...

Please tell me if it works then.

Laurent

[Derek Watling]

Hi Laurent

The Java Classpath is already set to
    C:\Program Files\Apache Software Foundation\Tomcat 8.0\bin\bootstrap.jar;C:\Program Files\Apache Software Foundation\Tomcat 8.0\bin\tomcat-juli.jar
and I appended
    ;C:\Program Files\Java\Marlin\marlin-0.7.1-Unsafe.jar

Using the Startup arguments I tried
    java -Xbootclasspath/a:C:/Program~1/Java/Marlin/marlin-0.7.1-Unsafe.jar
but get exactly the same result as before.

Derek

[Andrea Aime]

Makes me wonder if the params are really passed onto the JVM that's running

Tomcat.

On linux it would be trivial to check, on Windows it seems you have to download

an extra program (looks like one of the well known sysinternals utils), see here:

http://superuser.com/questions/415360/how-do-i-find-out-command-line-arguments-of-a-running-program

Might be worth checking

Cheers

Andrea

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[Laurent Bourgès]

Hi Derek,

Marlin should be added to the JVM classpath ie using -Xbootclasspath/a (append) only to be loaded by the java2d RenderingEngine (not the java classpath) !

I do not remember what is the shortened path for "C:\Program Files\"; I tested on windows 7 (virtual box), it's "C:\PROGRA~1\"

Please try:

  java -Xbootclasspath/a:C:\PROGRA~1\Java/Marlin/marlin-0.7.1-Unsafe.jar

Are you sure that the tomcat monitor application really supports giving command line options ?

PS: I usually use the setenv.bat in the tomcat folder (to set environment variables).

Laurent

[Derek Watling]

Hi Andrea

I have tried these programs, but can only see how Tomcat is loaded. I can't see not how Tomcat loads the Java JVM, or even see a Java process.

Derek

Derek Watling
Cell: 082 562 4698

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[Derek Watling]

Hi Laurent and Andrea

Thank you for all the help. Finally got it working.

Under "Java Options" on Tomcat's "Java" tab I added the following 2 lines, as shown by the red arrows:
-Xbootclasspath/a:C:\Program Files\Java\Marlin\marlin-0.7.1-Unsafe.jar
-Dsun.java2d.renderer=org.marlin.pisces.PiscesRenderingEngine

After re-starting Tomcat and running draw_shape.jsp / check_renderer.jsp again I now get:

Current RenderingEngine implementation:

org.marlin.pisces.PiscesRenderingEngine

And in the tomcat8-stdout.2015-11-25.log file I now have:

INFO: ===============================================================================
INFO: Marlin software rasterizer           = ENABLED
INFO: Version                              = [marlin-0.7.1-Unsafe]
INFO: sun.java2d.renderer                  = org.marlin.pisces.MarlinRenderingEngine
INFO: sun.java2d.renderer.useThreadLocal   = true
INFO: sun.java2d.renderer.useRef           = soft
INFO: sun.java2d.renderer.pixelsize        = 2048
INFO: sun.java2d.renderer.subPixel_log2_X  = 3
INFO: sun.java2d.renderer.subPixel_log2_Y  = 3
INFO: sun.java2d.renderer.tileSize_log2    = 5
INFO: sun.java2d.renderer.blockSize_log2   = 5
INFO: sun.java2d.renderer.blockSize_log2   = 5
INFO: sun.java2d.renderer.forceRLE         = false
INFO: sun.java2d.renderer.forceNoRLE       = false
INFO: sun.java2d.renderer.useTileFlags     = true
INFO: sun.java2d.renderer.useTileFlags.useHeuristics = true
INFO: sun.java2d.renderer.rleMinWidth      = 40
INFO: sun.java2d.renderer.useSimplifier    = false
INFO: sun.java2d.renderer.doStats          = false
INFO: sun.java2d.renderer.doMonitors       = false
INFO: sun.java2d.renderer.doChecks         = false
INFO: sun.java2d.renderer.useLogger        = false
INFO: sun.java2d.renderer.logCreateContext = false
INFO: sun.java2d.renderer.logUnsafeMalloc  = false
INFO: Renderer settings:
INFO: CUB_COUNT_LG = 2
INFO: CUB_DEC_BND  = 20.0
INFO: CUB_INC_BND  = 8.0
INFO: QUAD_DEC_BND = 8.0
INFO: sun.java2d.renderer.gamma            = 1.0
INFO: ===============================================================================

Derek 

[Laurent Bourgès]

Derek,

Congratulations !

Sorry, I never used that the Tomcat monitor application but it is interesting to know that it exists and is useful.

Enjoy Marlin with geoserver,

Laurent