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**Isomorphic** · 2 Nov 2006, 20:13

Question 1 & 2: serving gzipped JS from Apache

If you plan to deploy the SmartClient server at some point to handle dynamic requests, then you can just configure Apache to allow the SmartClient FileDownload servlet to serve the SmartClient framework, which automatically uses compression and sets HTTP "Expires" headers that avoid redundant downloads.

If you need to deploy entirely without the SmartClient server, Apache can be configured to serve compressed JS using mod_gzip:

http://schroepl.net/projekte/mod_gzip/

.. and can be configured to set "Expires" headers using mod_expires:

http://httpd.apache.org/docs/2.0/mod/mod_expires.html

There is a lot of public information about how to do this, however it is fairly involved. If you plan to deploy the SmartClient server at some point in the future anyway, I wouldn't dive into the Apache configuration necessary for delivering compressed JS.

Question 3: optimizing file size

Once you've set up compression the download will be approximately 1/6 the size and will occur only once. In terms of trimming:

SmartClient is delivered in modules, so load only the modules you need
The FileLoader can be used to load or cache SmartClient in the background while the user is logging in or viewing a simple landing page
Any kind of moving loading indicator dramatically reduces the percieved wait time

It is possible for Isomorphic to trim unused components from a build, however, this should generally be attempted only once your application is complete and the full component usage is clear, and generally the gain is quite small, so it's best to focus on the above strategies.

Question 4: private support

Customers of Isomorphic have the option of private support channels. If you feel like you are giving too much away on public forums, a typical approach is to isolate the issue to a simpler test file. This will become necessary anyway for troubleshooting as your application becomes larger and more sophisticated.

**skota** · 6 Nov 2006, 09:03

We will be deploying the files eventually into java application server either in JBoss or Weblogic...

How does this work in that case? Do you have a plugin or we need to configure anything in web.xml to make this happen?

Thanks,
-SK

**Isomorphic** · 6 Nov 2006, 17:34

deployment instructions in SmartClient Reference

Hi skota,

Everything is explained in the Deployment Instructions in the SmartClient Reference, including what files need to be deployed to your application server, descriptions of the behavior of each servlet included in the SmartClient-provided web.xml file, and whether and why you would enable each servlet in a production deployment.

Let us know if you need more information.

**subashk** · 23 Mar 2009, 05:07

How to make SmartClient use gzip js files instead of js.

I have configured my app web.xml to use CompressionFilter, JSSyntaxScannerFilter, NoCacheFilter, FileDownload, MessagingServlet, FileAssembly and PreCache

And have both gzip and js files, but when I access the page it takes 23 seconds to render the page.

And the total chunk of js files takes 460KB.

Please direct us to exact configuration settings and todo stuff to avoid this slowness.

**subashk** · 23 Mar 2009, 09:45

Actually all JS files are zipped but still rendering is taking almost 15 seconds.

Used YSlow (cool tool) to figure out the issue

Empty Cache

3.0K 1 HTML/Text

459.4K 12 JavaScript Files

7.1K 1 Stylesheet File

0.8K 3 CSS Images

24.2K 24 Images
494.7K Total size

Primed Cache
41 HTTP requests

3.0K 1 HTML/Text

7.3K 12 JavaScript Files

0.0K 1 Stylesheet File

0.0K 3 CSS Images

1.0K 24 Images
11.5K Total size
41 HTTP requests
Weight graphs:

**Isomorphic** · 23 Mar 2009, 12:01

You probably have incorrect settings for autoDraw. See the docs.

**subashk** · 23 Mar 2009, 13:22

Set autoDraw to false for all grid components.

Appreciate if you can give some suggestions on what should look like and what to be done.

**Isomorphic** · 23 Mar 2009, 13:24

Yes, that's what's in the docs. Please don't post again without reading them, thanks.

**subashk** · 23 Mar 2009, 13:29

Atleast point where the doc is and where it is mentioned.

Atleast point where the doc is and where it is mentioned.

Thanks.

**davidj6** · 23 Mar 2009, 14:13

Not really a problem to find on your own. All docs are linked at the top of the forums and you can search for anything like autoDraw as was suggested above. Two results that are very helpful are smartArchitecture that has a description of general issues and Canvas.autoDraw with more specifics on using this attribute.

The docs are really good and the search capability can help you track down specifics when you are not sure where to look. Give them a try.

**subashk** · 2 Apr 2009, 07:24

Debug console optimization.

Thanks, that helped a lot.

I'm seeing in my debug console, does this sound right. Not seeing Grid as it should look like, does it have to do with License expiration??

Mouse Event Target : ActiveIssuersChart Focus Target :
Last MouseDown Target : [click to add to eval]

Canvas Count : 342
draw()s : 739 clear()s : 461 redraw()s : 19 destroy()s : 4
Eval JS
Clear
Ruler
SmartClient Version: 6.5.1 (expires 2009-03-08 12:23:49.0) Licensed to: xxxx (#687687687687) Log Messages

11:20:56.048:INFO:Log:initialized
11:21:03.970:WARN:VStack:isc_VStack_64:Adding already drawn widget:isc_Label_62 to new parent:isc_VStack_64. Child has been cleared so it can be drawn inside the new parent. This may be a result of autoDraw being enabled for the child.
11:21:03.970:WARN:VStack:isc_VStack_64:Adding already drawn widget:isc_Label_63 to new parent:isc_VStack_64. Child has been cleared so it can be drawn inside the new parent. This may be a result of autoDraw being enabled for the child.
11:21:06.330:INFO:Log:isc.Page is loaded
1
11:22:16.835:TMR2:WARN:Scrollbar:SectorRecapList_body_hscroll:ignoring bad or negative width: -15 [enable 'sizing' log for stack trace]

XML Comm Watcher (selection available as 'element' in evals)

Evaluate Java (contents run in a JSP)

Evaluate XML

Literal Text (contents available as 'literalText' in JS evals)

Evaluate JS Expression (watch list selection available as 'watched' in evals)

**Isomorphic** · 2 Apr 2009, 11:48

Subash these log messages are pointing you right to the problem with autoDraw that we previously pointed out:

11:21:03.970:WARN:VStack:isc_VStack_64:Adding already drawn widget:isc_Label_62 to new parent:isc_VStack_64. Child has been cleared so it can be drawn inside the new parent. This may be a result of autoDraw being enabled for the child.
11:21:03.970:WARN:VStack:isc_VStack_64:Adding already drawn widget:isc_Label_63 to new parent:isc_VStack_64. Child has been cleared so it can be drawn inside the new parent. This may be a result of autoDraw being enabled for the child.

Your application does 739 clear()s (as the Developer Console is also pointing out) because of this problem. Why don't you fix this so you aren't waiting multiple seconds for the screen to come up every time?

**subashk** · 2 Apr 2009, 13:24

Yes, we fixed that and now the debug console looks like this.

We are having multiple grid in a layout and the grids show up in Firefox fine, but in IE it has white background on listgrid's header panel.

Are we redrawing too many components or this is normal? We have set all widget - autoDraw to false except the top layout.

Debug Console:
Mouse Event Target : DSTabSet_tabBar Focus Target : dataServicesTab
Last MouseDown Target : dataServicesTab [click to add to eval]

Canvas Count : 315
draw()s : 364 clear()s : 110 redraw()s : 14 destroy()s : 4
Eval JS
Clear
Ruler
SmartClient Version: 6.5.1 (expires 2009-03-08 12:23:49.0) Licensed to: xxx(#xxx) Log Messages

17:19:56.369:INFO:Log:initialized
17:20:06.104:INFO:Log:isc.Page is loaded
17:20:09.900:XRP6[E]:WARN:FusionChart:ActiveIssuersChart:src set to: https://xxx.com/HomePage/isomorphic/../FusionCharts/Charts/Pie3D.swf

XML Comm Watcher (selection available as 'element' in evals)

Evaluate Java (contents run in a JSP)

Evaluate XML

Literal Text (contents available as 'literalText' in JS evals)

Evaluate JS Expression (watch list selection available as 'watched' in evals)

dataServicesViewSelector

**Isomorphic** · 2 Apr 2009, 13:56

You've still got 110 clears, that's not normal. The Developer Console will tell you which components are doing this and why if you only let it :) In addition to the telltale log messages you were seeing before, you can enable the "clears" log category to see which components are clearing.

Use the Watch tab to figure out why there would be an unexpected white area. If you need further help, post a screenshot of the visual problem you're seeing.

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Configuring apache to download .gz files

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