Spectrum OneClick java client app launching slowly

Products

• Spectrum
• Network Observability

Issue/Introduction

When launching the Spectrum OneClick java-based client app via JNLP, on a Microsoft Windows based  it takes several minutes to start, when previously, it was just seconds (around 10 to 20s). What can be done to improve the launch time?

Environment

DX NetOps Spectrum all currently supported releases
Windows client PC running java based OneClick client

Cause

The JRE may be keeping older elements that haven't been upgraded in it's cache, which causes the system to try to first start the OneClick client with these older (and no longer compatible elements) before then downloading the current elements from the OneClick server.

Resolution

Clear the JRE cache as follows to try and improve the launch time

1. Launch the OpenWebStart settings app:
   
   
   
   
2. Then if there is an update, please upgrade it. For example:
   
   
   
   
3. Then select "cache" and clear the Oneclick.jnlp tmp files from the cache as per:
   
   
   
   

4. Set the Limit Cache Size to 0. By setting this to 0, it does not continue to store the tmp files to cache.