Virtualization Manager does not load

10/12/2018 7:48 PM

3/27/2019 7:26 PM

This article provides brief information and steps to resolve the issue when a gray screen displays with a progress bar and does not start Virtualization Manager. 

This frequently occurs when the cache of Adobe Flash was corrupted or you are using Virtualization manager on a machine without internet access or behind a firewall which blocks content from fpdownload.adobe.com.

Virtualization Manager

Notes:

• Clear your browser's cache.

If the issue still occurs after clearing the cache, continue as follows:

• Perform the steps listed under .
• If the affected machine does not have access to the internet or is behind a firewall which blocks content from .
• If you are using Virtualization Manager earlier than 6.x, continue with the instructions under to manually download the missing files and install them on the appliance.

 

Deleting the Flash cache

1. Locate the Flash Cache directory on the computer:
   • On Chrome: C:\Users\[your_user_name]\AppData\Local\Google\Chrome\User Data\Default\Pepper Data\ShockwaveFlash\CacheWritableAdobeRoot\AssetCache\
   • On other browsers: C:\Users\[your_user_name]\AppData\Roaming\Adobe\Flash Player\AssetCache\
2. Locate a directory with a name similar to KEJLANMQ or ENK5KRX7, and then delete this directory.
   Note: The directory names are randomly generated.
3. Restart the browser, and then access the Virtualization Manager appliance.

After applying these steps, the login window should appear without problems.

 

Disabling the Flash cache

1. Navigate to the following link:
   http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager03.html (© 2019 Adobe Systems Incorporated, available at https://www.adobe.com/, obtained on January 16, 2019).
2. When the site is loaded and the Adobe Flash Player Settings Manager is displayed, deselect the Store common Flash components to reduce download times option.
3. Refresh the Adobe web page to make sure that the settings are saved.
4. Close all your browser windows, and then open the Virtualization Manager console.

After applying these steps, the login window should appear without problems.

 

Rebuilding the Flash cache

After being deleted, the Flash cache will be rebuilt automatically when Virtualization Manager is accessed. This does not happen on systems without internet connection or on systems without access to Adobe’s website. On these systems, the cache needs to be rebuilt manually.

To rebuild the Flash cache, continue with either of the following two options:

Option A:

1. If you have disabled the Flash cache, re-enable it again.
2. Access the Virtualization Manager Live Demo on http://virtualization.demo.solarwinds.com from a network where access to fpdownload.adobe.com  (© 2019 Adobe Systems Incorporated, available at https://www.adobe.com/, obtained on January 16, 2019) is not blocked. Wait until the login dialog is displayed.
3. The necessary files will be downloaded from Adobe’s website and cached in the computer.

After applying these steps, online access will no longer be required.

Option B:

1. If you have disabled the Flash cache, re-enable it again.
2. On a different computer with access to Adobe’s servers, delete the Flash cache by following the steps listed under Virtualization Manager does not load.
3. Access the Virtualization Manager Live Demo on http://virtualization.demo.solarwinds.com using this computer.
4. Locate the Flash Cache directory on the computer:
   • On Chrome: C:\Users[your_user_name]\AppData\Local\Google\Chrome\User\Data\Default\Pepper Data\Shockwave Flash\CacheWritableAdobeRoot\AssetCache\
   • On other browsers: C:\Users\[your_user_name]\AppData\Roaming\Adobe\FlashPlayer\AssetCache\
5. Locate a directory with a name similar to KEJLANMQ or ENK5KRX7, and then delete any *.swz and *.heu files within the directory.
6. In this directory, locate the following files:
   381814F6F5270FFBB27E244D6138BC023AF911D5.swz
   SHA-1: 54344e7d6b541931119f4e668338cb2adcf0fb3a
   MD5: cb750e3ed604be8751ce70c1bcc73aa5
   
   440AE73B017A477382DEFF7C0DBE4896FED21079.swz
   SHA-1: eb7989c14f46aee69553d8c6f4a0052c34a76413
   MD5: 4589eb088b5d2acbbf70dc76d24bf00d
   
   6344DCC80A9A6A3676DCEA0C92C8C45EFD2F3220.swz
   SHA-1: ba5d9cd663eece4a9e3beb5293120dc330afdf82
   MD5: 45b6e1b7b5189e36a2f6a202bd4851ee
   
   6DDB94AE3365798230849FA0F931AC132FE417D1.swz
   SHA-1: 4a0d97a5e6818bfe7c4c5192cfbed8a4bd8b1683
   MD5: 14445dd8221b8f214f36415f55f4c6fc
   
   871F12AF0853C06E4EB80A1CCAB295CEADBB817A.swz
   SHA-1: 91ca4d416f899e7fc01c40abf087ebf8930d136b
   MD5: 0b857e8e900311d2a39d10524bfccf66
   
   C3306B26751D6A80EB1FCB651912469AE18819AB.swz
   SHA-1: 0329bc83f7b4885f638c4c3999ef8d475184c5ff
   MD5: bda2eec1f04e52f15d0c79ddfa643be5
   
   Note: These files may be changed periodically, so the names and checksums may vary after a period of time.
7. Exit the browser on the target computer, and then copy the *.swz files into the proper directory of the computer’s Flash cache.

 

Downloading the missing Adobe Flex libraries

If you do not have an Internet connection or otherwise block the connection to fpdownload.adobe.com (© 2019 Adobe Systems Incorporated, available at https://www.adobe.com/, obtained on January 16, 2019), the Virtualization Manager user interface will not load. Virtualization Manager does not include all core Adobe Flex libraries and must download them from fpdownload.adobe.com (© 2019 Adobe Systems Incorporated, available at https://www.adobe.com/, obtained on January 16, 2019).

1. Download the following files (© 2019 Adobe Systems Incorporated, available at https://www.adobe.com/, obtained on January 16, 2019):
   http://fpdownload.adobe.com/pub/swz/flex/4.1.0.16076/datavisualization_4.1.0.16076.swz
   http://fpdownload.adobe.com/pub/swz/flex/4.1.0.16076/framework_4.1.0.16076.swz
   http://fpdownload.adobe.com/pub/swz/flex/4.1.0.16076/rpc_4.1.0.16076.swz
   http://fpdownload.adobe.com/pub/swz/flex/4.1.0.16076/spark_4.1.0.16076.swz
   http://fpdownload.adobe.com/pub/swz/flex/4.1.0.16076/sparkskins_4.1.0.16076.swz
   http://fpdownload.adobe.com/pub/swz/tlf/1.1.0.604/textLayout_1.1.0.604.swz
   http://fpdownload.adobe.com/pub/swz/flex/4.1.0.16076/osmf_flex.4.0.0.13495.swz
2. Copy the files to the /user/share/tomcat/webapps/swvm directory on the Virtualization Manager appliance via SCP or FTP.
3. Log on to the Virtualization Manager appliance via the console.
4. Enter the following command:

   sudo su – root

5. Modify the owner of the files to the hyper9 user by issuing the following command:

   chown hyper9 /usr/share/tomcat/webapps/swvm/*swz

6. Restart the appliance.
7. Refresh the browser.

Note: The hyper9 user must have read permissions on the new files.

 

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