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Slow startup of Swing Client [message #1131154]

Thu, 10 October 2013 08:41

Bertin Kiekebosch

Messages: 330
Registered: August 2011

Senior Member

Hi,

when the Swing Client starts it normally takes 2-6 seconds. Sometimes, for some users this takes much longer 1-5 minutes.

In the configuration.ini of the client there is a setting.
osgi.user.area=@user.home/programname/user.

The cause of this delay is that in our network, @user.home points to some directory on a server that is sometimes very busy. So at startup this directory is hard to reach and this causes the delay.

So is there an alternative for this in a way that I still have different directories for the different users. For example, if this directory would always be on the local PC it would work fast.

Regards Bertin

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Re: Slow startup of Swing Client [message #1184684 is a reply to message #1131154]

Wed, 13 November 2013 16:19

Lukas Huser

Messages: 42
Registered: March 2010

Member

Hi Bertin

"Bertin Kiekebosch"

The cause of this delay is that in our network, @user.home points to some directory on a server that is sometimes very busy. So at startup this directory is hard to reach and this causes the delay.

Note that the special syntax @user.home will simply be replaced by the Java System property user.home. (See [1] for more information on the OSGi locations and the special syntax you can use in the config.ini file.) I assume you are on a Windows system? Here, the JVM has a rather strange way to initialize the user.home property: It is defined as the parent folder of the Desktop Shell Folder (See [2] for more details. This is actually a long standing JVM Bug -- and it seems to be finally resolved with Java 8!)

Are you sure that the Desktop Shell Folder correctly points to a network location? Doesn't this slow down your setup in general?

"Bertin Kiekebosch"

So is there an alternative for this in a way that I still have different directories for the different users. For example, if this directory would always be on the local PC it would work fast.

There is a special syntax to refer to environment variables in the config.ini file. (See section "Variable substitution in config.ini" in [1].)
So you could use something like the following (assuming that the environment variable USERPROFILE points to a reasonable location in your setup Smile

osgi.user.area=$USERPROFILE$/programname/user

[1] http://help.eclipse.org/kepler/topic/org.eclipse.platform.doc.isv/reference/misc/runtime-options.html?cp=2_1_3_0
[2] http://bugs.sun.com/view_bug.do?bug_id=4787931

Lukas

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